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4900 Industrial Way Benicia, CA 94510 USA Phone 707-747-5900 Fax 707-747-9200

WWW.RIXINDUSTRIES.COM Parts Fax 707-748-0398

OPERATING INSTRUCTIONS

and PARTS LIST for

RIX INDUSTRIESTWO STAGE, OIL-FREE

OXYGEN COMPRESSOR

MODEL 2V2B-8.6

S/N 13395

P/N: MAN-2V2B-8.6-13395 rev (-)

----------------------------------

WARNING

-------------------------------

THIS COMPRESSOR IS DESIGNED FOR COMPRESSING DRY OXYGEN OR NITROGEN ONLY

AND IS NOT SUITABLE FOR COMPRESSING WET OR FLAMMABLE GASES

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PARTS, SERVICE & TECHNICAL SUPPORT

Manufacturer: RIX Industries

4900 Industrial Way

Benicia, California 94510 USA

Phone: 707-747-5900

Fax: 707-747-9200

Parts Fax: 707-748-0398

www.rixindustries.com

Normal Parts Dept Hours: 6:30-3:30 PST

Compressor model and serial number must be provided with all inquiries

NOTE

It is strongly recommended that all parts required for routine maintenance

be procured in advance (see parts lists). Smaller items such as piston rings,

reed valves and rod packings may require 30-60 days leadtime if not in

stock at time of order. Larger components such as cylinders and piston

rods may require 30-90 days. Hoerbiger plate type compression valves will

require 90-100 days.

http://www.rixindustries.com/



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P/N: MAN-2V2B-8.6-13395

Rev (-)

REVISION PAGE

Revision Date By

PagesRevised Brief Description

- 8/15/12 DRR Initial Release

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TABLE OF CONTENTS

MODEL 2V2B-8.6 S/N 13395

P/N: MAN-2V2B-8.6-13395 rev (-) i

Page

Table of Contents ..................................................................................................... i

Drawing Index.... ................................................................................................... iii

Compressor Registration ........................................................................................ iv

Safety Precautions ....................................................................................................vWarranty ................................................................................................................ vi

O2 Warning ........................................................................................................... vii

1. COMPRESSOR OVERVIEW

1.1 Description ...................................................................................................11.2 Gas Compression .........................................................................................1

1.3 Gas Flow ......................................................................................................1

1.4 Cooling .........................................................................................................11.5 Crankcase Lubrication .................................................................................1

2. INSTALLATION

2.1 Mounting ......................................................................................................22.2 Piping ...........................................................................................................2

2.3 Crankcase Lubrication .................................................................................3

2.4 Electrical Connections .................................................................................32.5 Distance Pieces ............................................................................................3

2.6 Storage .........................................................................................................4

3. STARTUP AND OPERATING PROCEDURES

3.1 System Checkout .........................................................................................5

3.2 Start-Up ........................................................................................................5

3.3 Normal Operating Pressure Ranges .............................................................63.4 Relief Valve Settings ...................................................................................6

3.5 Operating Temperatures...............................................................................7

4. CONTROL SYSTEM

4.1 Safety Switch Settings .................................................................................8

4.2 Control System.............................................................................................8

5. ROUTINE INSPECTION and SCHEDULED MAINTENANCE

5.1 Routine Inspection .....................................................................................105.2 Scheduled Maintenance .............................................................................10

5.3 Filter Cleaning ...........................................................................................115.4 Crankcase Lubricating Oil .........................................................................11

5.5 Motor Lubrication ......................................................................................11

5.6 Drive Belts .................................................................................................115.7 Pressure Relief Valves ...............................................................................11

5.8 Gas Piping Leak Check ..............................................................................11

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TABLE OF CONTENTS

MODEL 2V2B-8.6 S/N 13395

P/N: MAN-2V2B-8.6-13395 rev (-) ii

5.9 Valves ........................................................................................................12

5.10 Piston Rings ...............................................................................................12

5.11 Cylinder Liners ..........................................................................................12

5.112 Piston Rod Oil Seals ..................................................................................13

6. TROUBLESHOOTING ...........................................................................................14

7. CORRECTIVE MAINTENANCE – MECHANICAL SYSTEMS ......................15

Introduction ................................................................................................15

SECTION I – EXTERNAL ADJUSTMENTS AND ALIGNMENTS

7.1 Drive Belts .................................................................................................15

7.2 Cooling Fan ................................................................................................15

SECTION II – REPAIR

7.4 Cylinder Heads...........................................................................................177.5 Compressor Valves ....................................................................................17

7.5.1 1st Stage Valve Assy .................................................................................187.5.2 2nd Stage Valve Assy ................................................................................19

7.6 Cylinders ....................................................................................................20

7.7 Piston Rings ...............................................................................................207.7.1 Replace Piston Ring – Fixed Piston – all Stages .......................................21

7.8 Piston Rods, Oil Wiper Seals .....................................................................22

7.8.1 Install Piston Rods, Oil Wiper Seals ..........................................................22

7.9 Piston Rod Adjustment ..............................................................................227.10 Crankshaft Shaft Seal .................................................................................22

7.11 Guide Cylinders .........................................................................................237.12 Connecting Rods ........................................................................................247.13 Main Bearings ............................................................................................25

7.14 Clearances & Tolerances ...........................................................................26

7.15 Wrench Torque’s .......................................................................................27

COMPRESSOR PARTS LIST ......................................................................................28

1ST STAGE PARTS LIST – 3 1/4” ................................................................................30

2ND STAGE PARTS LIST – 2” .....................................................................................31

CRANKCASE PARTS LIST .........................................................................................32

ACCESSORIES PARTS LIST ......................................................................................33PLUMBING PARTS LIST ............................................................................................35

ELECTRICAL PARTS LIST ........................................................................................37

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_______________________________________________________________________________

DRAWING INDEX

2V2B-8.6 S/N: 13395

P/N: MAN-2V2B-8.6-13395 rev (-) iii

Pump Drawing

Compressor Cross Section ................................................................................................... 14950

Compression Assemblies:

1st Stage ......................................................................................................................... 14954

2nd Stage ........................................................................................................................ 14955

Valves:

1st Stage ........................................................................................................................ A9285

2nd Stage ....................................................................................................................... A7998

Instructions for Installing Spiral Piston Rings .................................................................... A3534

O-ring Information ............................................................................................................ A5089

Oil Wiper Box Assy ............................................................................................................. B7668

Crankcase Assy .................................................................................................................... B9131

Connecting Rod Assy ......................................................................................................... B8156

Package

General Arrangement .......................................................................................................... 14949

Flow Schematic .................................................................................................................... 14952

Electrical Schematic ........................................................................................................... B12708

Plumbing Schematic ............................................................................................................ 14953

Manufacturer’s Drawing and Technical Information

SUCTION PRESSURE SWITCH, PSI (P/N: X76-7669-55) ............................................. A8029

DISCHARGE PRESSURE SWITCH, PSD (P/N: X76-714-508) ...................................... A8101

MAIN MOTOR, M (P/N: 107-7072) ................................................................................ A10386

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2 COMPRESSOR REGISTRATION

The following information should be used when ordering parts or requesting information:

Compressor Model 2V2B-8.6 Size 3 1/4" & 2" x 3" stroke

Serial Number 13395 Work Order: 558173

Cross Section drawings 14950 Month/Year Shipped 7/12

Flow & Gas compressed 30 SCFM dry O2

Operating Parameters 72.5 PSIG Inlet, 508 PSIG Discharge

OPERATING PRESSURES

The compressor has been test run at the design suction and discharge pressures.

Interstage pressures should be approximately as follows:

First Second

Suction Stage Stage

(psig) (psig) (psig)

72.5 220 508

Relief Valve Settings 90 250 560

Note: The flow rate will vary with the suction pressure, temperature and compressor condition

Design speed: 460 RPM

Compressor Rotation: Counterclockwise from flywheel side

Drive Motor: 10 HP, 380/3/50 1500 RPM 215T

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vii

O2 WARNING

FOR OXYGEN SERVICE: To prevent FIRE, SERIOUS INJURY, and/or DEATH,remove all traces of hydrocarbon contamination from oxygen exposed areas. It is

the User’s responsibility to ensure all components that may be exposed toOxygen gas are cleaned for Oxygen Service prior to installation. Thosecomponents include, but are not limited to, the compression assemblie(s),crankcase, gas plumbing, safety switches and all valving. Use only oxygencompatible grease and Viton O-rings in crankcase and in areas exposed to gasstream.

Any work to be done on the compressor where the gas stream may be exposedmust be done in accordance with safe Oxygen Equipment handling procedures.

No attempt should be made to work on the machine without full knowledge of

Oxygen equipment handling and the potential hazards of contamination.

Factory Oxygen cleaned parts are denoted by an “X” prefix at the beginning ofthe part number. Any components not denoted by Rix as factory cleaned mustbe oxygen cleaned prior to installation. It is the User’s responsibility to maintainthe cleanliness of factory cleaned parts and any other existing portions of the gasstream that may be exposed during the initial installation, start up, or duringinstallation of replacement parts.

RIX Industries recommends the customer establish a procedure for working withoxygen machinery. Refer to Compressed Gas Association, Inc. publication

number CGA G-4.1, Cleaning Equipment for Oxygen Service. (pg 2 & 12)

Wet Gas Warning

For units pumping “wet gases”, a crankcase moisture drain is required to removeany liquid build up in the crankcase. The crankcase must be drained at regularintervals to ensure that the volume of liquid in the crankcase does not exceed 50ml. To establish accurate drain intervals, keep a log of volume drained -vs. -drain intervals.

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v

SAFETY PRECAUTIONS

Prior to installing, operating, troubleshooting or repairing any part of this compressor,all precautions below and in this manual should be reviewed and understood. Failure

to observe safety precautions may result in damage to equipment or serious injury

and/or death to personnel.

1. Before working on the compressor, ensure that the electrical power is de-energized and will

remain so while work is in progress. All circuits not known to be DEAD must be considered

LIVE and dangerous at all times. In automatic mode, the machine may restart at any time.

All electrical components associated with this unit shall be installed and grounded in accordance

with applicable codes and regulations.

2. Do not touch cylinder heads or the discharge gas lines from the heads to the heat exchangers.

These are hot and can cause serious burns. If deemed necessary wrap pipes with heat insulating

material and install caution signs.

3. Do not stick hands or tools into the piston rod/distance piece area when compressor is running if

unit has metallic slingers on the piston rods. Slingers are not visible when running and willcrush fingers.

4. Do not operate unit if safety guards are damaged or removed, or if safety shutdown devices are

incorrectly set, inoperable or removed.

5. Do not reset relief valves for any pressure higher than specified in the service manual. Do not

plug outlet port of valves.

6. Do not make any unauthorized alteration to the equipment.

This equipment is designed only for one specific application, as noted on the registration page of this

manual. RIX Sales Engineering welcomes your consultation if alternate service is desired.

Rev 8-10

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RIX Industries

COMPRESSOR WARRANTY

RIX Industries warrants this compressor as follows:

Twelve (12) months of operation or eighteen (18) months from date of shipment, whicheveroccurs first, covering materials and workmanship under normal use and service as defined by

RIX Industries.

Seller’s liability, statutory or otherwise, shall be limited to repair or replacement of materialfound to be defective, FOB Seller’s plant or other designated point. Buyer shall, at Seller’s

request, return alleged defective materials freight prepaid to Seller (return authorization numberrequired) for inspection prior to Seller issuing credit for said part(s).

Components, equipment and accessories furnished to Seller by third parties are warranted only to

the extent of the original manufacturer’s warranty to the Seller.

This warranty shall not apply to any compressor or component which has been subject to abuse,

misuse, neglect or accident, nor shall it apply to any equipment, which has been repaired oraltered by any person not authorized by Seller.

Warranty does not cover maintenance items which require replacement during the warranty period.

In no event will Seller be liable for consequential damages or contingent liabilities arising out ofthe failure of any compressor or parts to operate properly.

No express, implied or statutory warranty other than herein set forth is made, or authorized to be

made, by Seller.

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P/N: MAN-2V2B-8.6-13395 1

CHAPTER 1 - COMPRESSOR OVERVIEW

This manual is intended to provide information pertinent to the installation, operation and maintenanceof the RIX Model 2V2B-8.6 Compressor.

1.1 DESCRIPTION

This is a 2 stage, 2 cylinder, air-cooled, oil-free compressor. See registration page for design operating pressures, flow rate and gas type.

1.2 GAS COMPRESSION: This compressor is designed to safely compress without cylinder oilubrication. Teflon based piston rings are used in all stages. The compression cylinders are isolated

from the crankcase lubricating oil by a crosshead distance piece.

Since oil is not used in the compression cylinders, the compressor will not contaminate the compressed

gas, however, it is the responsibility of the user to ensure that clean gas is supplied to the compressor

intake at all times. A small amount of inert piston ring dust will pass into the gas stream; this can befiltered out if desired. It is required of the buyer to monitor the gas purity and/or filter the discharge gas

as necessary to be suitable for the intended use.

1.3 GAS FLOW: Gas entering at the suction of the first stage is successively compressed through

all stages to provide the final discharge pressure. After each stage of compression the gas must be

cooled in a heat exchanger. For wet gases a moisture separator is required after each gas cooler. A flowschematic shows the gas flow in more detail.

1.4 COOLING: Due to the heat created by compression, it is necessary to cool the compressed gas

after each stage of compression. A cooling fan pulls air through the inter/aftercooler assembly and then

routes the air towards the heads and cylinders.

1.5 CRANKCASE LUBRICATION: The entire crankcase assembly including guide cylinders is

splash lubricated.

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CHAPTER 2 - INSTALLATION

2.1 MOUNTING: The compressor must be firmly bolted down on a rigid foundation. In some

cases firm rubber mounts are acceptable, however, allowed movement will generally increase vibration

which can cause component damage.

For proper cooling adequate ventilation must be supplied at the compressor site. Ambient cooling air isrequired to be 100 F˚ or less. Cooler air is desirable as it will increase compressor component life

Extremely low ambient temperatures may require oil sump heating.

If compressing wet gas the compressor must be located where temperatures are above freezing.

O2 Safety Zone: Due to the inherent danger of fire and/or explosion during O2 compression, personnel

should not be allowed in close contact with the unit during operation. The necessity of surrounding the

unit with a protective barrier should be considered. Flammable substances should not be stored near the

compressor.

For O2 units, it is highly recommended that a supply of high purity N2 is available for start-up andtesting of the compressor package. See O2 burn-in recommendation in Ch. 3.1.1

WARNING

FOR NITROX or OXYGEN SERVICE: All customer gas piping in and out of the

compressor must be designed for oxygen compatibility and cleaned to eliminatecontamination that could result in fire and/or explosion in the compressor or related

gas piping. Only personnel fully trained in oxygen handling procedures should be

allowed to service this unit or any piping system connected to it.

A 2nd check valve should be installed just prior to the users gas storage bank, to

prevent gas flow back to the compressor package.

SEE ADDITIONAL WARNING AT START OF CHAPTER 5 OR 7

2.2 PIPING: When piping to the gas inlet, be sure all pipes are free from contamination. Piping to

the compressor suction should be the same diameter or larger than the compressor inlet piping to insure

the required flow can pass without pressure drop. A particulate filter or strainer (100 mesh or finer)must be installed at the gas inlet. Customer inlet and discharge piping should be designed to

accommodate compressor vibration.

An approved safety relief valve and pressure gauge must always be installed between the compressor

and the first item in the gas piping that can potentially block the flow of gas. All piping and components

downstream of the unit must be rated for the same pressure as the setting of the final stage relief valve.

Do not start the compressor until these items are properly installed.

Inspect all gas piping compression fittings and tighten as necessary. Flexible lines should be secured to

prevent whipping in case of breakage. It may be helpful to install a hand valve in the gas line just after

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the compressor to create back pressure for testing and switch calibration. On units with auto start/stoplogic, reconnecting the discharge pressure switch to a receiver tank may provide more accurate control.

See compressor flow schematic for other required customer connections (if any).

Note: the piston rings and gas packing seals (if equipped) are designed to seal in dynamic use and may

not seal well when compressor is not running.

WARNING: “BG” units have piston rod packing seals and the lower side of the compression cylinders

are plumbed back to the gas suction. The compressor must never be operated without these lines

connected or the crankcase rod loading may exceed design limits. Also, see section 7.8 for informationabout the packing vent port (and purge port if included).

CAUTION

For units with positive suction pressures, a safety valve must be used on the

suction line to protect against excessive intake pressure. The valve capacity must

match the maximum potential capacity of the customer gas source. Factory

installed relief valves are sized to match the compressor design flow rate only.

2.3 CRANKCASE LUBRICATION: Check crankcase oil level via sight gage with unit stopped

Oil level should be to fill line which is approx 3/4 of the way up the glass. Also inspect for water or

other foreign material. Change oil as necessary for local conditions. The unit has been shipped with

SAE 15-40 oil.

Automotive type oil is recommended, either synthetic or carbon based. Multi-viscosity oil is acceptable

Synthetic compression oils are not suitable.

CRANKCASE OIL CAPACITY: 1.75 Quarts (1.65 Liters)

VISCOSITY: Above 60˚F. - SAE 30Between 32˚ and 60˚F - SAE 20WBetween 20˚ and 32˚F - SAE 10W - synthetic oil preferred

Below 20˚F - SAE 5W - synthetic oil required

2.4 ELECTRICAL CONNECTIONS: The unit must be wired in accordance with applicable

codes. Jog unit to ensure correct rotation of compressor. See registration page for proper crankshaf

rotation. Check cooling fan rotation to ensure that air is pulled through the heat exchanger.

2.5 DISTANCE PIECES: Distance piece venting is necessary to minimize pressure pulsing(caused by piston movement) which could lead to piston rod oil seal leakage. It is also necessary to

prevent unsafe concentrations of O2 buildup in the distance piece area or crankcase.

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2.6 STORAGE: If the compressor is taken out of service, provision should be made to protecagainst corrosion. At a minimum, gas suction and discharge lines should be capped. The compressor

should be rotated at least once every 2 months. In corrosive environments, the distance pieces should be

sealed and the unit nitrogen purged.

After an extended storage (or if stored without climate control) the crankcase cover plates should be

removed and the roller bearings inspected for corrosion. Apply oil to bearings before replacing covers

Also, lift up oil packing boxes (inside distance pieces) and lubricate guide cylinders. Compressor headsand/or valves should also be removed and inspected for corrosion. Relief valves should be cleaned

rebuilt or replaced.

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CHAPTER 3 - START-UP AND OPERATING PARAMETERS

3.1 SYSTEM CHECKOUT: Check that crankcase oil level is 3/4 up the sight glass and inspect forwater or other foreign material.

Insure that a free flow of gas is available to the inlet and that all downstream piping is properly protected

by a suitable relief valve.

Check setting of all temperature shutdown devices (see Ch. 4 for settings).

For O2 units see O2 warning at beginning of manual.

3.1.1 O2 START-UP / BURN-IN PROCEDURE:

This procedure applies at initial start-up and anytime the compressor or associated piping isdisassembled and exposed to the atmosphere. All components must be oxygen clean before proceeding.

Charge system with clean, dry nitrogen or with a clean, dry nitrogen/oxygen mixture not exceeding 30%

oxygen. Run compressor at rated conditions, using a closed loop if necessary. Slowly inject oxygeninto the inlet while venting the compressor discharge until the unit is running on pure oxygen. This

process should take a least 30 minutes. This will allow any organic materials left in the system to

oxidize safely.

3.2 START-UP: Supply the required suction pressure to the compressor inlet. Check for leaks in

the system and correct as necessary. Start the compressor and observe the pressure gauges.

All elements of the pressure control system and safety shutdowns should be tested and verified before

the system is put into full operation.

If the unit is equipped with a back pressure regulator (BPR) on the discharge piping, the final pressure

will increase quickly to the BPR setting. Otherwise, the pressure will increase based on back pressurefrom user downstream piping. The interstage pressures should approach normal levels as the final stage

comes up to its final setting. See paragraph 3.3 or Registration Page for normal operating pressures

NOTE: High pressure units with floating pistons will experience knocking for 1-2 seconds on start-up.

If interstage pressures do not reach normal levels check for leaks in the gas piping. A soapy water

solution is one way to do this (see paragraph 5.8). If interstage pressures exceed normal levels (which

may pop relief valves) this is due to valves on the next stage leaking back. Leaking valves may be theresult of inactivity in which case operating the unit at reduced back pressure (or at back pressure valve

setting) for 30 minutes may clear the problem. Also see troubleshooting guide.

If the compressor does not shut off when the discharge switch set pressure is reached, manually shut

down and check the pressure switch and related wiring (see appendix for switch instructions). If

necessary, adjust the switch according to the directions.

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Test the suction pressure switch (if supplied) by manually lowering the pressure to the compressor inletIf the compressor does not shut off when the switch set pressure is reached, manually shut down and

check switch and related wiring. Operating the compressor with inadequate suction pressure may

overheat the final stage or cause banging of floating pistons creating the potential for severe damage.

Gas temperatures will also rise in conjunction with the stage pressures. Temperature switches may need

adjustment for local ambient/cooling water temperatures. Switches can be checked by lowering the trip

setting and then running the unit. Reset to 30°F (17°C) above maximum observed operatingtemperature. See instructions in back of manual for setting digital display.

Test all other shutdown devices as applicable. All elements of the pressure control system and safetyshutdowns should be tested and verified before the system is put into full operation.

SEE CHAPTER 4 FOR CONTROL SYSTEM INFORMATION

WARNING

A painful burn can be caused by touching any of the cylinder heads ordischarge lines from the heads to the inter/aftercooler.

3.3 NORMAL OPERATING PRESSURE RANGES:

Suction 72.5 psig

1st Stage 220 psig

2nd Stage 508 psig

It is recommended that a log be kept, noting operating pressures andmaintenance done versus hours of compressor operation. If pressures do not

fall within the above ranges, or vary from your historical pressures, check

Chapter 6, Troubleshooting, for corrective action.

3.4 RELIEF VALVE SETTINGS:

Relief valves provided by Rix. Following are required settings:

Stage Symbol PSIG

Suction RVI 90 Psig

1st Stage RV1 250 Psig

2nd Stage RV2 560 Psig

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3.5 OPERATING TEMPERATURES:

Location Normal Range ˚F

1st Stage Discharge Gas................................................................... 250 °F

2nd Stage Discharge Gas ................................................................. 320 °F

The above temperatures are based on an ambient temperature of 80˚F.

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CHAPTER 4 - CONTROL SYSTEM AND UNLOADED STARTUP

4.1 SAFETY SWITCH SETTINGS:

The following instruments are required for operation of the compressor. All instruments

must be provided by the customer. The following recommended settings are as noted:

Switches Symbol Function Set Point

High Gas Temp, 2nd stage Stop 350 ˚F

High Discharge Pressure, rising Stop 508 PSIG

Low Suction Pressure, falling Stop 55 PSIG

_______________________________________________

*User to set temp switch @ 30˚F above maximum observed operating temperature.

4.2 CONTROL SYSTEM

The control system is designed for two modes of operation:

1) Manual start / automatic stop

2) Auto start / stop based on both suction and discharge pressure

The suction and discharge pressure switches have a "cut in" setting for starting and a "cut out" setting

for stopping. The deadband of each switch is adjustable. See instructions in appendix for adjustments.

In the event of an emergency an E-Stop button is provided. The E-Stop will disconnect all power to the

control box. The E-Stop has a mechanical Push-Pull latch. Pushing the button will stop all operation. To

continue operation pull the E-Stop button to reengage circuit control.

WARNING

If the unit is in AUTO mode when the E-Stop button is pulled the unit will automatically restart. It is

recommended to place the HOA Switch in HAND or OFF mode prior to pulling the E-Stop button.

An HOA (HAND/OFF/AUTO) switch is provided on the control panel which allows operator choice of

modes. Details of the two operating modes are as follows:

Manual Mode of Operation

With the selector switch in the HAND position the compressor is in manual mode and will start when

the START pushbutton is pressed. The unit will continue to run until one of the safety switches stops

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the unit. At that point the compressor will not restart until the START pushbutton is pressed again. Ifany switch remains above the "cut in" setting the compressor will not start. To manually stop the unit

switch the HOA switch to the OFF position.

Automatic Mode of Operation

With the selector switch in the AUTO position the compressor will automatically start and stop based on

the signal from either the suction or discharge pressure switch. When shutdown by either switch, thecompressor will remain on standby until the pressure reverts back to the "cut in" point of the switch at

which point the compressor will restart. If shutdown by high gas temperature, the unit will remain offuntil the unit cools down below the temperature switch set point and the fault is cleared by pressing and

releasing the emergency stop button. To manually stop the unit, switch the HOA switch to the OFF

position.

Electrical Schematic Description

The following explains the logic sequence as reflected on the schematic:

a. With power applied to the unit and the selector switch (HOA) in HAND, push the

START pushbutton.

b. The two pressure switches, low inlet (PSI) and discharge (PSD) are connected in

series to the motor controller. If the inlet pressure is high enough to close the

inlet switch, and the discharge switch remains closed (pressure below the switch"cut in" setting) the compressor will start.

c. Current passes through the two closed pressure switches, the closed relay (R1-2)

and energizes the starter coil (C). The starter coil starts the main drive motor.The fan motor and hourmeter also operate at this point. The green light (LG) will

energize indicating the compressor is running. Tripping of either the inlet or

discharge switch will break current to the coil (C) which will stop the drive motor.

d. If the 2nd stage temperature reaches the switch set point the temperature switchopens and de-energizes relay R1. When relay R1 is de-energized, contact R1-2

opens and removes power to the motor starter coil (C). This stops the compressor

motor, fan motor, and the hour meter. The green light will de-energize. ContactR1-1 closes and the red light (LR) energizes signaling a high temperature

condition. After the temperature switch has reset, the emergency stop button must

be pushed to clear the fault, followed by the start button to restart the compressor

in manual mode. In auto mode the compressor will restart after the emergencystop is pressed and released.

e. The compressor may also be run in the automatic mode by selecting AUTO on the

HOA switch. All features are the same as described above except that after theinlet or discharge switch shut down the unit, the compressor will automatically

restart when the switches are moved to the "cut in" setting. The compressor will

continue cycling until the selector switch is moved to either HAND or OFF.

f. The unit may be stopped at any time by switching the HOA to OFF.

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CHAPTER 5 - ROUTINE INSPECTION and SCHEDULED MAINTENANCE

INTRODUCTION The purpose of this chapter is to provide the operator with the routine

inspection and scheduled maintenance information required to ensure a long service life of the subjectcompressor. Detailed procedures for maintenance are contained in chapter 7.

For O2 units, before any maintenance is performed please refer to

Chapter 7 Section II for OXYGEN WARNING!

5.1 - ROUTINE INSPECTION

a. Check that crankcase oil level is 3/4 of the way up on sight glass. Check for oil leaks.

b. Check gauge pressures against normal operating cylinder pressures.

c. Check cooling air flow. Verify heat exchanger fins are clean and free from blockages.

d. Check for unusual noises or vibrations.

e. Check for proper moisture separator operation (if applicable). All separators should

discharge water automatically.

5.2 SCHEDULED MAINTENANCE

Para. Operation Time Intervals in Hours

5.3 Filter Cleaning ......................................................... 2000 or as required5.4 Crankcase Lubricating Oil .................................... 6000 or once per year

5.5 Electric Motor Lubrication ............................................ as required

5.6 Drive-belt Adjustment ........................................................40005.7 Pressure Relief Valves .......................................... 8000 or once per year

5.8 Gas Piping Leak Check ..................................... 1000 or after maintenance

5.0 Compressor Valves ........................................................... see text5.10 Piston Rings .................................................................... as required

5.11 Cylinder Liners ............................................................... as required

5.12 Piston Rod Oil Seals ....................................................... as required

5.13 Piston Rod Gas Packing (BG models only).................... as required

WARNING

Before performing any of the scheduled maintenance tasks in this chapter,

the compressor should be shut off and tagged Out of Service. This is to prevent an inadvertent start which could cause injury to personnel or

damage to the equipment. Allow piping to cool before repair.

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5.3 FILTER CLEANING: Every 2000 hours (or as required) the filters should be cleaned (refer toFlow Schematic for filter locations). Replacement gasket or O-ring as applicable should be on hand in

case existing is damaged during disassembly.

5.4 CRANKCASE LUBRICATING OIL: Every 3000 hours of running time (or annually) the

crankcase oil should be renewed. Failing to change the oil as scheduled may result in premature or

accelerated wear to the running gear (crankshaft, main / connecting rod bearings and the crosshead).

5.5 MOTOR LUBRICATION: If motor does not have grease fittings, the bearings are sealed forlife. Otherwise, follow the manufacturer’s recommendation.

5.6 DRIVE BELTS: Properly tensioned belts insure a longer life. Correct belt tension for the 2V

unit allows one quarter inch deflection with 8-10 lb. force applied per belt at mid-span. New belts may

require tightening after 24-48 hours of operation. Two belts are required. Units with the flywheegrooves painted may require banded belts as single belts may rotate in the grooves. See Chapter 7.2 for

more information.

5.7 PRESSURE RELIEF VALVES: The pressure relief valves should be removed from the

compressor, inspected for cleanliness, and tested for correct set-point every 8000 hours or once per year.

If a valve fails to lift at its rated pressure, it must be readjusted, and if necessary, rebuilt or replaced.

5.8 GAS PIPING LEAK CHECK: After maintenance or every 1000 hours operation, all assembly joints should be examined for leaks. Leak testing requires that the unit be pressurized, and therefore

running or recently run. Any gaskets and o-rings needed for repair should be on hand.

A soapy solution in a squirt bottle is one method of locating leaks. This test is simplified if thecompressor is allowed to cool, then restarted immediately prior to running the leak test, since the hot

discharge pipes can boil away the soap solution making detection of leaks difficult or impossible.

WARNINGS

Do not use a flammable solution for leak testing

Hot discharge lines can produce painful burns

Wear safety glasses at all times

Notes: Observe for the formation of bubbles. Large leaks may blow the solution away as it is appliedand therefore must be detected by feel, being careful of hot gases and piping. O-ring joints normally

cannot be corrected by additional tightening - in most cases a new o-ring is required. Always inspect o-

ring sealing surfaces for defects. Insure the proper durometer (hardness) o-ring is used.

Note: See Drawing A5089 for O-ring installation and material information

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5.9 VALVES:

A leaking valve, either suction or discharge, will usually be indicated by higher than normal pressure on

the preceding stage, or in the case of the first stage, a loss in flow along with low interstage pressures.This can be caused by wear, breakage, warping of the reeds or fouling due to particulates. Severe

leakage in a suction valve will cause heating of the suction pipe just prior to the cylinder head.

The valve reeds should be changed every 4000 hours (2000 hours with O2 units), or earlier if pressuresvary from normal, noise is detected or an abnormally high temperature is observed. The customer

should establish reference data for use in troubleshooting by taking gauge readings when the compressor

is running under normal operating conditions.

The perimeter of valve seats and o-rings may be lightly lubed with appropriate grease to ease assembly.

Alignment pins may also be lubed to help hold in place. (see additional information in chapter 7)

Loctite is required for assembly of some valves. For O2 units use Green 290 only and ensure Loctiteis fully cured before operation (24 hrs). Otherwise use Blue 242. Make sure Loctite does not spreadout and get on reeds. See note in chapter 7.

5.10 PISTON RINGS:

As the piston rings wear, their ability to seal is diminished. Excessive wear will result in lower

compressor capacity, more frequent compressor operation and unnecessary wear on other componentsThere is also risk of damaging cylinder liner walls if the rings wear out completely, particularly on

stages with stainless pistons.

Excess piston to cylinder clearance, caused from either piston or cylinder liner wear, will significantly

decrease ring life. Cylinder bores should be observed for wear at ring change-outs and measured for

wear if ring life has significantly decreased. For maximum ring life, pistons should not be removedfrom cylinders prior to ring replacement.

For the high pressure stages that have floating pistons it is recommended that the pistons be replaced

with the rings as an assembly at the first change-out, and thereafter as necessary. If undamaged, theoriginal piston can be re-ringed by the user and kept for the next change-out.

The best indicator of worn rings is a low compressor flow output. On the first or intermediate stages the pressure for the affected cylinder will also be lowered. With extreme wear the compressor will not be

able to compress to the design pressure.

Ring life will vary with discharge pressure, atmospheric conditions and frequency of start/stop cycles.A low ambient temperature will increase ring life. Frequent start/stop cycles will reduce ring life. If

possible, allow downstream pressure to drop as low as possible before restarting compressor.

5.11 CYLINDER LINERS: When ring life deteriorates from normal, liners should be checked for

surface finish, scoring or excessive wear. Maximum wear will normally occur 1/3 to 1/2 way down the bore. A bore gauge is the best way to measure wear. Check diameter at several depths for wash-

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boarding, and hone or replace as required. See chapter 7 for maximum diameters. Cleaning may not berequired on normal ring change-outs unless contaminates are present.

The desired cylinder surface is a 16-32 crosshatch. Surface roughness is needed to allow engraining ofTeflon in the bore. A smoother bore will reduce ring life. Re-hone cylinder as required, removing a

minimum of material.

5.12 PISTON ROD OIL SEALS: The oil seals prevent crankcase oil from leaking into the

distance piece area. If objectionable leakage occurs, remove piston rod and replace seals. If scratches

are found on rod surface, refinish per instructions in chapter 7.

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CHAPTER 6

TROUBLESHOOTING

GENERAL. Abnormal compressor conditions can be evaluated more quickly and accurately bylooking at interstage pressures. Variation of the interstage pressure indicates a problem condition, such

as worn piston rings, leaking valves or piping leaks. Observe cylinder pressures, which should be as

indicated on the Registration Page of this manual or in chapter 3.

Low interstage pressures will be caused by one or more of the following:

a. Worn 1st stage or interstage rings

b. Leaking 1st stage valves

c. Leaks in piping or o-rings

d. Excessive 1st stage piston clearance

e. Restricted inlet filter or suction pipingf. Low suction pressure to compressor

NOTE: Operating compressor with a low interstage pressure may cause overheating of the

final stage resulting in premature ring wear.

High interstage pressures will be caused by one or more of the following:

a. Leaking valves on the next stage (most likely cause)

b. Worn piston rings on next stage

NOTE: Leaking valves (in any stage) can cause a warming of the suction pipe just prior to the cylinder

head. If the unit has two parallel cylinders, compare the inlet pipe temperatures to each other.

Compressor will not produce final discharge pressure:

a. Worn piston rings

b. Leak to atmosphere via cylinder head o-ring or pipingc. Leak in downstream (customer) piping

Shutdown due to high discharge temperature:

a. Low interstage pressure (see above causes) b. Inoperative cooling fan (or reverse rotation)

c. Inadequate ventilation around compressor or blocked cooling fins

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CHAPTER 7 CORRECTIVE MAINTENANCE – MECHANICAL SYSTEMS

INTRODUCTION: This chapter presents instructions for adjustments and repairs to the

compressor pump. Scheduled maintenance and general repair information is covered in Chapter 5Where special tools are required, they are called out in the applicable paragraph. This chapter is divided

into two sections: Section I, Adjustments and Alignments, and Section II, Repair.

SECTION I – EXTERNAL ADJUSTMENTS AND ALIGNMENTS

7.1 ALIGNMENT OF DRIVE PULLEYS: Following any repair which requires removal of themotor sheave or compressor flywheel, it may be necessary to realign the pulleys.

The pulleys are keyed to the shaft and locked in place with a tapered bushing. The pulleys have a hubthat can be separated by removing the three bolts and using them as jacking devices by inserting into the

threaded holes in the hub and tightening sequentially until the pulley breaks free. When loose, the

pulley and hub can be slid back and forth on the shaft to achieve alignment. To align, use a straigh

edge across the outside faces of the pulleys. The gap between the straight edge and flywheel or pulleyshould not exceed 1/16" (4 CM).

Torque the bolts per specifications. Check alignment and repeat if necessary. Replace belt guard.

7.2 TIGHTENING V-BELTS:

To replace belts, loosen the motor (and beltguard if necessary) and roll the belts off the flywheel and

drive sheave, one groove at a time. Install new belts via reverse method.

To obtain the proper tension on the V-belts, use the following procedure:

a. Loosen the motor tie-down bolts at least three turns.

b. Move the motor outward until the desired belt tension is achieved. Correct belt tension

allows one quarter inch deflection with 8-10 lb. force applied per belt at mid-span.

c. Tighten motor tie-down bolts and replace belt guard.

d. Inspect and retighten new belts as required after 24-48 hours of operation.

7.3 COOLING FAN - The cooling fan is a sealed design and is not serviceable.

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SECTION II - REPAIR

For O2 units, it is recommended that the user perform an O2 Burn-in procedure, per paragraph

3.1.1, after any maintenance involving the gas stream area of the unit. During this procedure alpersonnel should be separated from the compression area.

OXYGEN WARNING

FOR OXYGEN OR NITROX SERVICE: To prevent FIRE, SERIOUS INJURY

or DEATH, it is the User’s responsibility to ensure that all parts used in the oxygen

contacting areas of the compressor are cleaned for O2 service prior to installation.

All gas piping and storage systems connected to the compressor must be oxygen

clean and constructed of oxygen compatible materials.

No attempt should be made to work on the machine without full knowledge of

oxygen equipment handling procedures and the potential hazards of contamination.

Cleaning should be in accordance with Compressed Gas Association publication

CGA G-4.1, Cleaning Equipment for Oxygen Service. www.cganet.com

Any work to be done on the compressor where the gas stream may be exposed must be done in accordance with CGA procedures.

RIX factory oxygen cleaned parts are denoted by an “X” prefix at the beginning ofthe part number. It is the User’s responsibility to maintain the cleanliness of factory

cleaned parts, and any areas of the compressor gas stream that may be exposed to

contamination during maintenance.

Assembly drawings included in this manual may not have part numbers "X" marked

and therefore should be used for assembly reference only. Refer to the parts lists in

the RIX manual when ordering all parts.

The customer may alternately order non-O2 clean parts but will be responsible for

cleaning all parts prior to assembly onto the compressor. Relief valves or parts with"A" prefixes such as floating pistons would require disassembly for cleaning and

thus should not be ordered without O2 cleaning. RIX Industries is not responsible

for equipment damage, personnel injury, or consequential damages that may occur

due to the use of parts that have not been properly cleaned for oxygen service.

Use only oxygen compatible O-ring grease and either Viton or Teflon O-rings in

gas piping areas.

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7.5 CYLINDER HEADS:

REMOVE HEAD

a. Relieve pressure and allow heads to cool. Disconnect piping from head.

b. Note orientation of head to ensure proper reassembly. Remove retaining nuts using an

alternating pattern and lift head from cylinder.

INSTALL HEAD

a. Install new o-ring or gasket in the head and/or or at top of cylinder as applicable.

b. Correctly orient head and carefully lower onto cylinder making sure valve parts maintaintheir proper position. Install stainless nuts using assembly lube to prevent galling

Tighten in 5 ft-lb. increments using a cross sequence. Do not to overtighten as this can

damage valves and heads. Verify that head is on square and not cocked

7.5 COMPRESSOR VALVES:

A bad valve, either suction or discharge, will usually be indicated by higher than normal pressure on the

preceding stage, or in the case of the first stage, a loss in flow along with low interstage pressures. Thiscan be caused by wear, breakage, warping of the reeds or fouling due to particulates which prevent the

valve from fully closing. Remove and service the valves as recommended in chapter 5, or if any of the

interstage pressures vary from normal and other possible causes have been eliminated.

Reed valves in 1.5” to 4.625” cylinders require Hex key wrench (Allen wrench) for disassembly. See

individual valve instructions for required wrench size. An o-ring pick tool (RIX #88-5812) is also

recommended.

Loctite is required for assembly of some valves. For O2 units use Green 290 only (RIX #35-7641)and ensure Loctite is fully cured before operation (24 hrs). For non-O2 units Blue 242 (RIX #35-5857)is acceptable. Helpful tip: use a small wire or o-ring pick tool and apply just enough Loctite to wet the

female threads (do not apply to the screw). This will require less than one drop. Otherwise the Loctite

may spread onto the reeds causing valve leakage.

When reinstalling valves, care must be taken to avoid damaging the o-rings. Lubricate o-rings with anappropriate grease, such as RIX #45-1007 (Krytox, O2 and breathing compatible). Alignment pins

may also be lubricated to help hold in place. Avoid tilting the valve seat when installing in head andapply even pressure around the circumference until the seat is completely installed. On non-O2 units

Dow Chem #111 – Valve Lube & Sealant (RIX #45-403) may be helpful in cases where suction reed

valves must be held in place during assembly (not O2 compatible).

Note: After seat installation both suction and discharge holes must be visible or seat is in backwards.

Proper installation of a discharge reed can be checked by attempting to blow into discharge port. No airshould pass if valve and seat are correctly installed.

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7.5.1 1ST STAGE VALVE ASSEMBLY

Ref drawing A9285. 9/64" Allen wrench required

VALVE REMOVAL

a. Remove head (see section 7.4 for instructions).

b. Remove o-ring and the three Allen screws that attach the valve assembly to the head.

c. Remove suction guard, suction reeds and valve seat. Remove upper o-rings.

d. Remove the screws holding the discharge reeds and backing plates. It may be necessary

to heat the screws to release the Loctite.

INSPECTION AND REPAIR

a. Inspect the reeds for wear, cracking or warping. Examine valve seat for wear or damage

A uniform imprint of the reed usually indicates the valve is sealing normally. Radia

lines or streaks extending outward indicate leakage. Clean or replace parts as required.

b. If possible lap valve seat on a lapping plate using a fine lapping compound. Alternatelyon a flat plate, polish seat with 400 grit wet/dry sandpaper, then follow with 600 grit.

c. As necessary, carefully clean-up the inside surface of the head where the o-rings and

valve components slide into place. Use 400/600 grit sandpaper or Scotch Bright.

INSTALLATION

a. Once the valve components have been cleaned, proceed as follows:

b. Attach discharge reeds and backing plates onto valve seat. Use Loctite (see Para. 7.5 for

proper type). Use a minimal amount and be careful Loctite does not flow onto reeds as

this may prevent proper sealing.

c. Install upper o-ring in head using a small amount of appropriate grease to hold in place

Then install seat into head being careful that orientation is correct with screw holes

properly lined up. Install suction reeds and guard.

d. Install the three socket head screws, making sure the screws do not bottom out in thehead before the valve assembly is fully clamped. Torque screws to 10 in-lbs.

e. Install lower o-ring in head using a small amount of lube to hold in place, then instal

head onto cylinder making sure the gas connection ports are oriented correctly. Tighten

nuts in 5 ft-lb. increments to 20 ft-lbs, or 25 ft-lbs. if self-locking nuts are used (lubedthreads). Verify that the head is on square and not cocked. Do not overtighten.

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7.5.2 2nd STAGE VALVE ASSEMBLY

Ref drawing A7998. 5/32" Allen wrench required

VALVE REMOVAL

a. Remove the head per section 7.4.

b. Note the orientation of the suction reed valves. The reeds are not attached to the head

Remove reeds.

c. Remove the Allen screw (5/32") which holds the valve seat to the head and remove seatIf necessary use pliers in recessed area of discharge port to pull out valve seat.

d. Remove the two screws, valve backing plate and discharge reeds from the seat.

e Discard the o-rings. Clean, repair or replace parts as necessary.

VALVE INSTALLATION

a. Attach discharge reeds and backing plate with two screws onto valve seat. Use Loctite(see Paragraph 7.5 for proper type). Use a minimal amount and be careful Loctite does

not flow onto reeds as this may prevent proper sealing.

b. Apply a light film of appropriate grease to the new o-rings.

c. Install the large o-ring in the head and the small ones on the valve seat assembly. Align

the pin hole in valve seat with the roll pin in the head and install into head. Install thevalve retaining screw with Loctite (see Para. 7.5 for proper type) and tighten to 10 ft-lbs.

d. Set the suction reeds on the valve seat using a small amount of compatible o-ring greasewhich will hold the reeds in place during installation. If new reeds are used, bend the tab

over the discharge port to a 45 degree angle. Do not put grease on or near the valvefinger. Stretch out the lower o-ring and install with lubricant to further assist holding the

valve reeds in place during assembly. NOTE: This o-ring does not provide sealing. For

non-oxygen units, Dow Corning Valve Lube is ideal for holding the reeds in place due toits sticking ability (RIX P/N 45-403).

e. Replace o-ring on cylinder liner. Note: if cylinder has been removed, make sure valve

cutout in top of cylinder is oriented to coincide with suction reed in head.

f. Carefully install the head assembly, making sure the inlet reeds do not fall out of place

Note: it may be easier to mount the head on the cylinder off the compressor and theninstall the two together. Tighten nuts in 5 ft-lb. increments to 20 ft-lbs, or 25 ft-lbs. if

self-locking nuts are used (lubed threads). Be careful to verify that the head is on square

and not cocked. Do not overtighten.

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7.6 CYLINDERS: The compression cylinders must be removed to service the rings and pistons.

Each cylinder should be marked prior to removal to enable proper orientation upon reinstallation.

REMOVE AND INSTALL COMPRESSION CYLINDER.

a. Remove the cylinder head in accordance with Paragraph 7.4. b. Floating pistons may be pulled out top of cylinder with piston at TDC. Otherwise piston

may fall out bottom when cylinder is removed. For fixed pistons, turning the flywheel by

hand to position the piston at bottom dead center may ease removal of cylinder.

c. Being careful to prevent side stress on the piston and rod assembly, lift the cylinder off

the piston. Remove and discard the used O-rings. See chapter 5 for wear informationand end of this chapter for tolerances.

d. See instructions in piston ring replacement section(s) for reinstallation procedure.

7.7 PISTON RINGS: The rings should be replaced as necessary. On cylinders with fixed pistonsit may be necessary to remove the piston rod to change the rings. On high pressure stages with floating

pistons it is not necessary to remove the piston rod or change the adjustment, unless the piston rod gas packing or oil seals require replacement. See following instructions for specifics.

On high pressure stages with floating pistons, there is a rider ring on the piston rod. The first time the

piston rings are changed, this rider ring should be inspected and changed as necessary. The frequency atwhich this rider ring is replaced may be reduced depending upon the actual wear rate.

Drawing A3534 provides instructions for installing spiral rings.

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7.7.1 REPLACE PISTON RING - FIXED PISTON (all stages)

The piston rings can be changed by removing the cylinder only. Although it may be simpler not toremove the piston, if the oil seals need to be changed, piston removal will be necessary anyway.

a. Remove the cylinder head in accordance with Section 7.4.

b. Remove cylinder. If piston is to be removed, follow instructions in Section 7.8

c. Clean and inspect the cylinder bore for wear or damage (see ch. 5). Wear must be withinthe tolerance specified at end of this chapter.

d. Remove and discard the used rings. O-ring expanders (if used) must be replaced. Allow

o-rings 5-10 minutes to shrink back to original size before installing piston rings. Note

when replacing Micarta expanders it is a good idea to do a trial fit of the ring assembly inthe cylinder bore. Check to ensure the expander has a small gap between the ends.

e. Carefully spread each new ring and install in the groove. Repeat for each ring, being

certain the ends of the ring fit completely into the groove to insure proper sealing. Instal

rings with the gap 180˚ from the ring above. If a sleeve tool is available run piston thrutool to compress and set rings.

f. Reinstall cylinder (check for proper orientation), and piston assembly per Section 7.8

Carefully compress piston rings as piston is slid into cylinder, making sure the ends are

not pulled out of the ring groove. When installing piston into top side of cylinder, sleevetool may be used to aid installation. This procedure may require two mechanics.

g. Install a new o-ring or gasket in head or at top of cylinder as applicable.

h. Reinstall the head per the applicable valve assembly instructions. Note: make sure head

is oriented properly with regard to the suction/discharge ports and that valve cutout in topof cylinder (if any) is oriented to coincide with suction valve in head.

i. Readjust piston rod per instructions in Section 7.9 (if removed).

j. Rotate the flywheel by hand several times to be certain that the parts are free.

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7.8 PISTON RODS & OIL WIPER SEALS

REMOVE PISTON ROD

a. Remove cylinder and head in accordance with the appropriate sections of Chapter 7Remove distance piece covers.

b. Turn the flywheel by hand to position the piston at top dead center.

c. Remove the set screw (7/64" allen wrench required) and slide the oil wiper box upward

on the rod until the guide piston jam nut is exposed.

d. Loosen the jam nut and screw the piston rod assembly out of the guide piston. The pistonadjustment tool (#88-A8037) or small screwdriver can be inserted in the hole in the rod to

aid in turning the rod.

NOTE: It is recommended that the oil wiper seals be replaced anytime the rods are removed

The piston rod surface in the oil seal area should be as smooth as possible - not exceeding afinish of 8 RMS finish is preferred.

7.8.1 INSTALL PISTON ROD and OIL SEALS

a. Install new oil seals in oil packing box (lips facing down). Pre-lubricate seals to avoid

damage during startup. Inspect o-ring on oil wiper box and replace if necessary.

b. Install o-ring slinger onto piston rod. Slide oil packing box onto rod and then attach piston rod jam nut with machined side down. Screw the rod into the guide piston unti

the threads bottom

c. Reinstall the cylinder assemblies and adjust piston rod per instructions below.

CAUTION

The piston to cylinder head clearance adjustment is critical. Insufficient

clearance will result in the piston hitting the head.

7.9 PISTON ROD ADJUSTMENT

a. Turn the flywheel by hand to position the piston at top dead center.

b. Screw the rod out of the guide piston until the piston touches up against the valve.

c. Be certain the piston is still at top dead center, then screw the piston down three quarters

of one turn. The piston-to-cylinder head clearance will be approximately .040 inch.

d. Tighten the jam nut to 25 ft-lbs. torque.

e. Slide the oil wiper box into position, pushing down hard to ensure it is fully seated

Tighten locking screw hand tight with 7/64" allen wrench (Note: overtightening may

dislodge packing box) and then secure using the jam nut.

f. Turn the flywheel by hand a few revolutions to be certain that everything is clear beforestarting the compressor.

Oil Packing Break-In: None required.

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7.10 CRANKSHAFT SHAFT SEAL: The shaft seal is located at the flywheel end of thecrankshaft. If significant oil leakage develops it should be replaced.

REMOVAL

a. Remove flywheel and bushing by removing the three cap screws that secure the flywheeand hub to the crankshaft. Use these screws in the hub tapped holes to jack the flywhee

from the bushing. b. If possible, remove the seal with crankshaft intact. If this is not successful, the entire unit

must be disassembled and the crankshaft removed prior to seal removal.

c. Inspect the crankshaft surface where the oil seal makes contact. Remove any burrs orscratches that might inhibit a tight seal. Be careful to avoid getting any foreign materia

on the exposed bearing.

REASSEMBLY

a. Reassemble in the reverse order, using a new oil seal.

b. Be sure that the flywheel and drive sheave are lined up. This can be accomplished by

laying a straight edge across the sheave faces.

7.11 GUIDE CYLINDERS:

REMOVE AND INSTALL GUIDE CYLINDERS

a. Remove compression cylinder assemblies and oil wipers. Use special tool to hold guide

cylinder when removing piston rods.

b. Remove nuts holding down the guide cylinder and carefully lift the guide cylinder off of

the guide piston.

c. Reinstall in reverse order. Install with mark "M" (on lower flange of cylinder) towards

flywheel. Use new gaskets if necessary.

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7.12 CONNECTING RODS: The connecting rod uses automotive type bearing inserts on thelarge end and a pressed in needle bearing on the piston pin end. If the clearances are not within the

tolerances, the bearing shell, bushing or wrist pin should be replaced.

REPLACE CONNECTING RODS AND BEARING SETS

a. Drain oil from crankcase. Remove heads, compression cylinders, piston rods, and packing in accordance with the appropriate sections of Chapter 7.

b. Remove the nuts holding the guide cylinder to the crankcase and lift the completeassembly including distance piece up and off the guide piston.

c. Remove the two nuts and separate the connecting rod. The oil dipper does not need to be

removed. Lift the connecting rod and guide piston assembly out of the crankcase

Remove the capscrew in guide piston and push the wrist pin out to separate the guide piston from the rod. Match mark the connecting rod upper end and cap if necessary.

d. Using a micrometer, inspect the connecting rod bearing, bushing and crankshaft journa

for proper size, out of roundness or taper. Repair or replace as required.

e. Inspect the wrist pin and needle bearings for wear or damage; replace if necessary. When

pressing needle bearings into the connecting rod, be sure to press against the stamped end(end with identification markings) of bearings. There are two needle bearings per rod

and the end of each bearing should be flush with the outside of the connecting rod

f. Install the guide piston on a new rod in reverse sequence of removal.

g. Clean the rod and journal with a lint-free cloth and install new bearing shells in each halfof the connecting rod.

h. Apply a coating of crankcase oil on the bearing shell and crankshaft journal surface

Position the guide piston and rod on the crankshaft and install the cap, using the matching

numbers on the upper end and cap. Note: See photos below for correct oil dipperlocation. Install lockwashers and nuts and tighten the nuts to 15 ft-lbs torque.

i. Reinstall oil dippers on connecting rod caps if previously removed. Both rods require oi

dippers. When installed, each rod should be oriented such that the dipper points

downward towards the oil sump. If dipper does not point downward the rod must be pulled out and reversed. Torque the oil dipper bolt to 6 ft-lbs.

WARNING: Incorrect installation of oil dippers can lead to insufficient lubrication and

catastrophic failure.

Wrong Orientation Correct Orientation

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j. Reinstall the guide cylinders over the guide pistons.

k. Fill crankcase with new oil.

l. Reinstall the compression cylinder assemblies per instructions.

m. Install distance piece covers.

7.13 MAIN BEARINGS: The crankshaft is supported in the crankcase by two main bearings

They are a tapered roller design. Lubrication is supplied by crankcase oil splash. There is no scheduled

maintenance for the main bearings.

REMOVE MAIN BEARINGS.

a. The compressor must be completely disassembled. See applicable instructions.

b. Remove the flywheel and bushing by removing the three cap screws that secure theflywheel and bushing to the crankshaft. Use these screws in the bushing tapped holes to

jack the flywheel and bushing apart. This will "unlock" the bushing from the crankshaft.

c. Remove the bearing support cover and connecting rods. NOTE: There are notches in the

bearing support cover gasket so that the gasket is not damaged during disassembly.

d. Pull the crankshaft forward and remove it from the crankcase.

e. With a suitable puller, remove the bearings from each end of the crankshaft.

INSTALL MAIN BEARINGS.

a. Thoroughly clean the crankcase, crankshaft and bearing cover.

b. Press a new bearing on each end of the crankshaft main bearing journals. Preheating the

bearings to 250˚F will facilitate installation.

c. Install a new shaft seal in the crankcase.

d. Install the crankshaft with bearings into the crankcase.

e. Install the bearing plate with new gasket. Tighten the bearing plate bolts to 30 ft-lbs.

f. Install the connecting rods and guide cylinders. Rotate by hand insure all turns freelyFill the crankcase to the proper level with proper oil.

g. Install the flywheel, hub and key, drive V-belts and beltguard in the reverse order of

removal. Insure that flywheel and driver sheave are lined up.

h. Replace compression cylinder assemblies per instructions.

i. Connect all other equipment in reverse order of disassembly.

j. Turn the flywheel by hand a few revolutions to be certain everything is clear beforestarting the compressor.

k. Start the compressor and check for gas or oil leaks.

8/19/2019 2V2B


P/N: MAN-2V2B-8.6-13395 26

7.14 CLEARANCES & TOLERANCES

Nominal

Indicator Dimensions Wear Limit

Crankshaft Roller Bearings By inspection for pits, scratches,knocking or rough running.

Crankshaft Journals 1.811 Dia. Dia. -.002 in. Max.Connecting Rod Bearing 1.814 Dia. Dia. +.002 in. Max.

Journal and Bearing Clearance .003 .0055 in. Max.

Wrist Pins 1.000 Dia. Dia. -.0015 in. Max.

Wrist Pin Bearing 1.000 Dia. Dia. +.002 in. Max.

Wrist Pin and Bearing Clearance .001 .004 in. Max.

Guide Cylinder: 4.331 Dia. Dia. +.002 in. Max.

Guide Piston: 4.325 Dia. Dia. -.002 in. Max.

Guide Piston to Cylinder Clearance: .006. .009 in.. Max.

Piston Rods: .500 Dia. .002 in. wear

Pistons:

3 1/4 not a wearing part

2 not a wearing part

Cylinders Bores:

3 1/4 3.250 – 3.252 .005 in. diametrical wear

2 2.000 - 2.001 .003 in. diametrical wear

Valve Reeds: Replace at the presence of any visible

ridge or other damage

Valve Seats: Replace if worn or pitted enough

to cause insufficient seating.

Seals: Visual Any leakage should be corrected

8/19/2019 2V2B


P/N: MAN-2V2B-8.6-13395 27

7.15 WRENCH TORQUE’S (Lubed Threads)

Item Foot Pounds (Ft-lb.)

Air-cooled Cylinder Heads with standard nuts ............................ 20*

Oil Wiper Box Gland Bolts..............................................................5Oil Wiper Box Set Screw ............................................................. 1-2

Piston Rod Jam Nuts ......................................................................25

Distance Piece Mounting Bolts ......................................................30

Guide Cylinder Nuts ......................................................................30

Connecting Rod Nuts .....................................................................15

Crankcase End Cover Bolts ...........................................................30

Flywheel Bushing Bolts .................................................................40

Motor Sheave Hub Bolts, SDS bushing (1/4-20).............................9 _________________________* Over-tightening will damage valves

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2B-8.6 S/N: 13395 rev (-)

28

REF PART QTY

NO NO. DESCRIPTION UNIT *

1 66-D3342 Distance Piece 2

2 A119-B7668 Oil WiperBox Assemby 2

(Ref Dwg B7668)(incls 1 thru 6)

1) 215-A158-5 Packing Gland 2

2) 119-C2452 Wiper Box 2

3) 123-036-5 O-Ring 2 2

4) 125-70 Shaft Seal 4 4

5) 20-669 Washer, Flat 2

6) 32-1059 Bolt 2

3 14-A8020-5 Window Cover 4

4 32-1128 Bolt 16

5 20-669 AN Washer 16

6 32-4922 Bolt 12

Note: Floating piston assemblies should not be purchased without oxygen cleaning- dissassembly

for cleanining will damage the piston rings & o-rings.

IMPORTANT

All parts that come in contact with Oxygen MUST be Oxygen Cleaned

An "X" at the beginning of a part number signifies oxygen clean. Parts with

COMPRESSOR PARTS LIST

MODEL 2V2B-8.6 S/N 13395

Note: The compression cylinder assembly and crankcase are detailed on separate

drawings and parts lists, on pages following.

this designation are specially cleaned and supplied in sealed plastic bags.

Parts may be purchased without oxygen cleaning if cleaned by user prior to installation.

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2B-8.6 S/N: 13395 rev (-)

29

REF PART QTY

NO NO. DESCRIPTION UNIT *

COMPRESSOR PARTS LIST

MODEL 2V2B-8.6 S/N 13395

7 20-656 AN Washer 12

8 53-A7938 Jam Nut 2

9 XA1-14955 2nd Stage Compression Assembly 1

Ref Dwg. 14955 (see separate Parts List )

10 XA1-14954 1st Stage Compression Assembly 1

Ref Dwg. 14954 (see separate Parts List )

11 A100-B9131 Crankcase Assembly 1

Ref Dwg. B9131 (see separate Parts List )

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2B-8.6-13395 rev (-) 30

REF PART PER PER

NO NO. DESCRIPTION ASSY UNIT *

1 XA15-A9285 Valve Assembly, 1st Stage 1 1

(incls. 1-9)(Ref. Dwg. A9285)

X123-252-5-90 1. O-ring 2 4

X32-9281 2. Socket Head Bolt 3

X15-B8789 3. Suction Guard 1

X15-B8788 4. Reed Valve, Suction 2

X15-B8790 5. Valve Seat 1

X15-A9382 6. Reed Valve, Discharge 2

X15-A9383 7. Valve Backing Plate 2

X34-607 8. Round Head Screw 4

X123-146-5-90 9. O-ring 1 2

2 X2-C3085 Head 1 2

3 XA1-B8853-72 Cylinder Assembly 1

4 105-C1993-113 Stud 4

5 53-71 Jam Nut 4

6 20-703 AN Washer 8

7 XA8-14956 Piston Rod Assembly 1

8 X18L-15055-325G Compression Ring 2 1

9 X18-C758-8G Rider Ring 1 1

10 X38-B8787 Adapter 1 2

11 X54-7905 Plug 1 2

12 32-9325 Bolt 4

13 222-1000 Slinger 1

14 32-4733 Bolt 2

15 123-013-5 O-ring 1 1

3 1/4" COMPRESSION ASSY.

Ref. Dwg: 14954

PARTS LIST

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2B-8.6-13395 rev (-) 31

REF PART PER PER

NO NO. DESCRIPTION ASSY UNIT *

1 XA1-D3058 Cylinder Assembly 1

2 X123-151-5 O-ring 1 1

3 X2-C3024 Head 1

4 XA15-A7998 Valve Assembly, 1st Stage 1 1

(incls. 1-10)(Ref. Dwg. A7998)

X17-410 1. Pin, Roll 3/32 Dia x 1/2" Lg, SS 1

X123-021-5 2. O-Ring 1 2

X123-042-5-90 3. O-Ring 2 4

X34-607 4. Screw 2

X15-A3946 5. Reed Valve Backing Plate 1

X15-A3720 6. Reed Valve - Discharge 2

X15-B5287 7. Valve Seat 1

X15-A7960 8. Reed Valve - Inlet 2

X123-012-5 9. O-Ring 1 2

X34-807 10. Screw 1

5 XA8-14957 Piston Rod Assembly 1

6 X18-B418-10G Rider Ring 1 1

7 X18-C1791-16G Compression Ring 4 4

8 53-1000 Nut 4

9 20-703 AN Washer 4

10 105-C1993-100 Stud 4

11 222-1000 Slinger 1

12 32-4733 Bolt 2

13 123-013-5 O-ring 1 1

O-ring for suction and discharge gas ports:

X123-916-5 O-ring, Suction 1 1

X123-910-5 O-ring, Discharge 1 1

2" COMPRESSION ASSY.

Ref. Dwg: 14955

PARTS LIST

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2BG-8.6-13395 rev (-)

32

CRANKCASE PARTS LIST

RIX MODEL 2V

REF. DWG. NO. B9131

QTY QTY

REF PART PER PER

NO NO. DESCRIPTION ASSY COMP *

1 32-1002 Hex bolt, 3/8-16, 1"L 4

2 20-672 Washer, Lock, 3/8 12

3 38-D2965-1 Bearing Cover 1

4 49-414 Cap, Oil Filler 1

5 16-B7036 Gasket, Bearing Cover 1 2

6 181-1001 Ball Bearing 2

7 A7-B8156 Connecting Rod Assy, 1" pin bore 2

See Drawing B8156 7.6 21-5854 Bearing, Rod Journal 1

7.9 181-7066 Needle Bearing 1

8 5-C2760 Crankshaft 1

9 100-D2961 Crankcase 1

10 53-43 Nut, Hex, 3/8-16 8

11 1-D2962 Guide Cylinder 2

12 16-B7037 Gasket, Guide Cylinder 2

13 105-1028 Stud, 3/8-16, 1 3/4"L 8

14 125-1003 Shaft Seal, 45 MM 115 60-1078 Oil Sight Glass 1

16 36-C2828-1 Flywheel 1

17 11-175-SF Bushing, Sheave 1

18 54-3076 Cap, 3/8 NPT 1

19 54-5153 Nipple, 3/8 NPT, 7" L 1

20 17-A9149 Wrist Pin, 1" 2

21 34-677 Bolt, Socket Head Cap Screw, 2

1/4-20, 1" L, GR8, HT alloy steel

22 8-C3015 Guide Piston, 1" pin bore 223 91-A4992-1 Key, square 1

24 32-4149 Bolt, hex Head 3/8-16 x 3", grd 5 3

25 62-12362 Oil Fill Label 1

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2B-8.6-13395 rev (-)

33

REF REF. PART PER

NO SYM. NO. DESCRIPTION UNIT *

201 M 107-7072 Main Motor 1

202 FI XA77-650 Inlet Filter Strainer 1203 PSI X76-7669-55 Suction Pressure Switch 1

204 PSD X76-714-508 DischargePressure Switch 1

205 HM 113-10156 Hour Meter 1

206 RTD X138-5531 RTD 1

207 PGI X60-8276 Pressure Gauge 0-200 psi 1

208 PG1 X60-12667 Pressure Gauge 0-400 psi 1

209 PG2 X60-8277 Pressure Gauge 0-1000 psi 1

210 RV1 X515-7744-250 Relief Valve set @ 250 psi 1

211 RVI X515-7744-90 Relief Valve set @ 90 psi 1

212 RV2 X515-816-560 Relief Valve set @ 560 psi 1

213 CV X615-8592 Discharge Check Valve 1 1

214 HV X715-47-1 Hand Valve 3

215 FM 42-116 Fan 1

216 A70-D3634 Bedplate 1

217 HX1, HX2 X71-13633 Heat Exchanger 1

218 X10-C2580 Manifiold 1

219 148-C2544 Fan Shroud 1

220 40-D2713 Electrical Box Bracket 1

221 40-A8045 Lifting Bracket 1

ACCESSORY PARTS LIST

DWG. 14952

MODEL 2V2B-8.6 S/N 13395

Omitted items do not appear in this assembly.

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2B-8.6-13395 rev (-)

34

REF REF. PART PER

NO SYM. NO. DESCRIPTION UNIT *

ACCESSORY PARTS LIST

DWG. 14952

MODEL 2V2B-8.6 S/N 13395

Omitted items do not appear in this assembly.

222 62-403 Label 1

223 62-A7634-98 Label 1224 62-A7634-99 Label 1

225 62-A7634-100 Label 1

226 62-A7921 Label 1

227 A142-B6201-1 Motor Slide Base 1

228 62-A7507-1 Label 1

229 62-A7514 Label 1

230 62-A7353 Label 1

231 62-416 Label 1

232 62-422 Label 1

233 20-4745 Washer 4

234 62-A8471 Label 1

235 62-A7122-309 Serial Number Nameplate 1

236 11-138-SDS Motor Bushing 1

237 41-B75-2 Belt 1 1

238 36-2B058 Motor Sheave 1

239 A156-D3632 Beltguard 1

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2B-8.6-13395 rev (-)

35

REF PART PER PERNO NO. DESCRIPTION UNIT ASSY *

300 X54P-1MROSS Male Run Pipe Tee 1

301 X54D-1610116SS Male Connector 1

302 X54D-1610116STSS Male Connector 1

303 X123-916-5 O-ring 3

304 X123-904-5 O-ring 3


306 X123-906-5 O-ring 3

307 X54D-81016STSS Male Connector 1308 X54D-4003TTSSS Male Branch Tee 1

309 X54D-40074SS Female Connector 2

310 X54D-1210116STSS Male Connector 2

311 X54D-1210610SS Reducing Union 1

312 X123-910-5 O-ring 1

313 X54P-101/2F5OFSS Male Pipe Adapter 1

314 X54P-1/2MMOSS Female Pipe Tee 1

315 X54P-1/21/8PTRB Pipe Thread Reducer 1


317 X54D-1010R16SS Tube End Reducer 1

318 X54D-16103126SS Union Tee 1

319 X455-B6239 Tube Line 3

320 X54D-40024STSS Connector 3

321 X455-C2577 Tube Line 1

322 X54D-101068SS Reducing Union 1

323 X54D-60026STSS Connector 2

324 X54D-10103106SS Union Tee 1

325 X54D-810384SS Reducing Tee 1



328 X54-4746 Pipe Nipple 2

329 X54W-70X4B Male Elbow 2

330 X54W-64X4B Union Tee 1

PLUMBING PARTS LIST

REF. DWG. NO. 14953

MODEL 2V2B-8.6 S/N 13395

8/19/2019 2V2B


*Recommended Spares

P/N: MAN-2V2B-8.6-13395 rev (-)

36

REF PART PER PERNO NO. DESCRIPTION UNIT ASSY *

300 X54P-1MROSS Male Run Pipe Tee 1

PLUMBING PARTS LIST

REF. DWG. NO. 14953

MODEL 2V2B-8.6 S/N 13395

331 X455-C2574-2 Tube Line 1

332 X455-C2574 Tube Line 1

333 X455-C2574-1 Tube Line 1

334 X54P-1/21/4FGB Pipe Adapter 2

335 X54D-810R10SS Tube End Reducer 1

A X6-1089 TUBE, STAINLESS STEEL 1" OD X .065 W 1

B X6-1064 TUBE, STAINLESS STEEL 3/4 O.D. X .065 W 1C X6-1063 TUBE, STAINLESS STEEL 1/2 O.D. X .065 W 1

D X6-1037 TUBE, STAINLESS STEEL 3/8 O.D. X .065 W 1

E X6-1046 TUBE, STAINLESS STEEL 1/4 O.D. X .049 W 1

8/19/2019 2V2B


*Recommended Spares

P/N MAN-2V2B-8.6-13395 REV (-) 37

REF PART PER

NO SYM NO. DESCRIPTION UNIT *

Omitted reference numbers are not used in this assembly

401 62-12623 Hand-Off-Auto Legend Plate 1

402 62-12624 Start Legend Plate 1

403 HL1 76-12627 Indicating Light, Green 1

404 63-5514 Grommet 1

405 HL2 76-12628 Indicating Light, Red 1

406 SA 76-12604 3 Position Selector Switch 1

407 SB2 76-12605 Push Button, Black 1

408 QF1 76-12897 Circuit breaker, Double Pole 1

409 163-12594 Fuse Holder 1410 C1 976-12908 Capacitor 1

411 138-12587 Terminal Block 13

412 138-12589 Terminal Block, Power 3

413 138-12590 End Plate 1

414 138-12588 Ground Terminal Block 1

415 138-12591 Terminal End cap 4

416 158-12630 Terminal Box 1

417 TC1 185-12892 Transformer 1

418 TIS 76-12579 Temperature Controller 1

419 HM 113-12909 Hour meter 1

420 142-B6397-3 Mounting Channel 1

421 142-B6397 Mounting Channel 1

422 KA 676-12592 Relay 1

423 KM 76-10404 Motor Contactor 1

424 OL 76-10405 Motor Overload 1

425 16-11857 Hour Meter Gasket 1

426 SB1 76-12606 Emergency Stop Switch 1

427 138-12615 Terminal Block Jumper 3

429 62-12622 Emergency Stop Legend Plate 1

430 62-12621 Run Legend Plate 1

431 62-12625 Stop Legend Plate 1432 QF2 76-12896 Circuit breaker, Single Pole 1

433 163-12595 Fuse Holder 1

434 138-12616 Terminal Block Jumper 1

435 Q1 76-12893 Disconnect 1

436 76-12894 Selector Handle 1

437 76-12895 Selector Shaft 1

ELECTRICAL COMPONENTS

REF. DWGS. B12708 rev C

MODEL 2V3B-4.1V

8/19/2019 2V2B


CH

QA

SIM

1/16

1/32 5

1/8

UNLESS OTHERWISESPECIFIED DIMENSIONS

ARE IN INCHES.TOLERANCES ARE:

DECIMAL

FRACTIONS

WELDSCHAMFERS

ANGLESCAST

.X .1

.XX .02

.XXX .005

THIRD ANGLE PROJECTION

2

CO

PROPRIETARY DRAWING

This drawing and the information anddata contained herein are theconfidential and proprietary property ofRIX Industries and may not be used,copied, reproduced, or disclosed forany purpose, without the writtenpermission of RIX Industries.

DR

AP

A A

9

10

2

8

1

11

6

712X

2X

2X

4

5

34X

16X

2X

8/19/2019 2V2B


DETAIL A SCALE: NTS

CH

QA

SIM

1/16

1/32 5

1/8



DECIMAL

FRACTIONS

WELDSCHAMFERS

ANGLESCAST

.X .1

.XX .02

.XXX .005


2

CO

PROPRIETARY DRAWING


DR

AP

A

A

A

6544X

2

1 8

9

2X

NOTES:1. SUCTION AND DISCHARGE PORTS 1 5/16-12 SAE/ MS THREAD ( USE O-RING 123-916-5).2. COMPRESSION RING TO BE ASSEMBLED WITH L-SHAPE RING ON TOP (CLOSEST TO THE

COMPRESSION CHAMBER) SEE DETAIL A.

3 7

8/19/2019 2V2B


CH

QA

SIM

1/16

1/32 5

1/8



DECIMAL

FRACTIONS

WELDSCHAMFERS

ANGLESCAST

.X .1

.XX .02

.XXX .005


2

CO

PROPRIETARY DRAWING


DR

AP

A

A 13

1211

10

9

8

7

6

5

4

3

2

1

ITE

8 9 10 674X

5

4

213

4X

NOTES:1. SUCTION PORT 1 5/16-12 SAE/ MS THREAD ( USE O-RING 123-916-5)2. DISCHARGE PORT 7/8-14 SAE/ MS THREAD ( USE O-RING 123-910-5)

8/19/2019 2V2B


8/19/2019 2V2B


TITLE

SIZE DWG NO R

SCALE SHEET OF

DRAWN

CHECKED

APPROVED

CODE ID. NO.28953

CONTRACT NO.Tolerances (unless otherwise

noted)

Decimal Fractions

.X

.XX

.XXX .XXXX ̀

``

`

P/N

.1

.02.005.001

WeldsCham. AnglesCast

````

1/16 1/32

5

(X.XXX)=Reference Dimension

See Notes for More Information

Do Not Scale Dims. in Inches

Material

Finish

Proprietary Drawing

This drawing and the information

and data contained herein are the

confidential and proprietary

property of RIX Industries and

may not be used, copied,

reproduced or disclosed for any

purpose, without the written

permission of RIX Industries.

Third Angle

Projection

Interpret Drawing Per ANSI Y14.5M-1982 Drawing Specifies The Completed Part

Revision History

LTR Description Date Appro

SIMILAR TO

1/80

30'

VALVE ASSEMBLY 2.00 - 2.625 DIA. CYL.

A79981

A

RIX INDUSTRIES AIR AND GAS COMPRESSOR MANUFACTUREON SAN FRANCISCO BAY SINCE 1878 DWR 02/01/29

JAC 02/01/30

KL 02/01/30

AS NOTED

A15-A7998NONE

Parts List

QDESCRIPTIONPART #ITEMROLL PIN, 3/32"DIA, 1/2"L,S/S17-4101

O-RING123-021-52

O-RING123-042-5-903

SCREW, RND HD, #6-32, 1/4 L, S/S34-6074

REED VALVE BACKING PLATE15-A39465

REED VALVE - DISCHARGE15-A37206

VALVE SEAT15-B52877

REED VALVE - INLET15-A79608

O RING123-012-59SCREW, SOC FL HD, 1/4-20, 1 L, S/S34-80710

NOTE: 1) USE LOCTITE GREEN 290 ( RIX P/N 35-7641)

ON SCREW THREADS DURING ASSEMBLY.

3

2

4

4

5

6

6

10

9

1

7

8

8

3

F

A NEW SEAT AND INLET REED 4/94 DM

B ADDED ITEMS 9 & 10 5/94 DM

C ADDED P/N TO ITEM 10 2/95 DM

D ITEM 3 WAS QTY. 1 9/95 DM

E ITEM 8 WAS QTY. 1 99/9/13DWR/W

F Added Cylinder sizes to Title; Added Note. See ECN# 2468 02/3/7 DWR/J

G Change Loctite was Red 271; Item 3 Qty was 2. See ECN# 2313 02/12/4 SW/JA

H TO UPDATE DRAWING TO AS INSTALLED CONDITION. 03/11/12 MAK/

I CHANGED QTY. OF 123-042-5 FROM 1 TO 2 (PER ECN #5432) 06/05/03 MJK/J

(NEXT ASSY SEE DWG #D334

J ADDED NEXT ASSY NOTE (ECN #6589) 07/05/07 LTB/J

K

K WAS LOCTITE BLUE 242; ECN 8298 08/12/16 DY/K

8/19/2019 2V2B

http://slidepdf.com/reader/full/2v2b 53/74F Rev 8-10 A3534

INSTRUCTIONS FOR INSTALLING SPIRAL PISTON RINGS

ON FLOATING OR REMOVABLE PISTONS

Refer to applicable piston assembly drawing in manual

Some compression stages use spiral wound compression rings. The pistons may be fixed to the rod andremovable, or floating. To replace the piston rings, remove the head per service manual instructions.With the flywheel rotated to bring the piston to top dead center, unbolt and lift the cylinder up and overthe piston, or, if directed, pull the piston out of the cylinder.

Inspect the piston for wear and replace if necessary. Replace all piston rings and O-rings. RIX does notrecommend partial replacement of rings.

1. Stretch the O-rings and roll them on one at a time using an o-ring pick (RIX P/N # 88-5812 or

equivalent). Alternately, roll o-rings onto the outside tapered portion of the sleeve tube providedwith the compressor (See Parts List for part number). Slide the sleeve tool over the piston (to thefarthest ring groove first) and roll the O-ring into the groove, taking care not to cut the ring onthe sharp edge of the piston.

2. Before stretching or uncoiling the spiral piston ring, note that each ring is slightly dish shaped.

The rings should be installed with the bottom of the dish down against the piston grooveland (farthest from the compression area).

3. Gently stretch the piston ring and work it into the groove over the O-ring. Protect the thin endsof the piston ring with your thumb nail while working the ring down into the groove. The last1/4 inch of the spiral ring may be cut off if necessary.

4. Install the top and bottom rider rings, and pressure breakers if required. (note: additional spiralrings can be substituted for pressure breakers)

5. Slide the assembled piston into the sleeve tool, using the internal taper of the sleeve tool to helpcompress the rings into the groove. (The bottom end of the piston should be inserted into thetapered end of the tool, so it ends up on the non-tapered end) Gently work the sleeve tool ontothe piston, taking care not to pull out the thin ends of the piston ring.

6. After the piston has been installed in the sleeve tube, slide the piston back out and examine therings. Replace any damaged rings. Reinstall in sleeve.

7. When installing piston into cylinder, place the squared end of the sleeve over the cylinder and

press the piston into the top of the cylinder bore. The tapped hole in the piston should be on top.

8/19/2019 2V2B


8/19/2019 2V2B


D

SECTION A-A

Finish

Material

Tolerances(Unles

Decimal FractioWeldsCham AngleCast

.X .1

.XX .02

.XXX .005

.XXXX

.001

( X.XXX)=Reference

Proprietary Drawing This drawing and the information and

data contained herein are the confidential

and proprietary property of RIX

Industries and may not be used, copied,

reproduced, or disclosed for any purpose,

without the written permission of RIX

Industries.

Third Angle

Projection

Interpret Drawing Per ANSI y14.5m-1982 Drawing Specifies the Completed Part

63

A A

NOTES:1. INSTALL THE GUIDE CYLINDER WITH MARK "F" TOWARD FLYWHEEL.2. WHEN INSTALLING CON RODS, OIL SLINGERS MUST BE OFFSET

TOWARDS EACH OTHER WITH THE TIPS POINTING DOWN.

OIL LEVEL

9

14

17

24

2316

12

13

11

21

22

20

7

4

3

1

5

6

8 18

19

15

10

2

2

NOTE 2

25

8/19/2019 2V2B


Finish

Material

Tolerances(Unles

Decimal FractioWeldsCham AngleCast

.X .1

.XX .02

.XXX .005

.XXXX .001

( X.XXX)=Reference

Proprietary Drawing This drawing and the information and

data contained herein are the confidential

and proprietary property of RIX

Industries and may not be used, copied,

reproduced, or disclosed for any purpose,

without the written permission of RIX

Industries.

Third Angle

Projection

Interpret Drawing Per ANSI y14.5m-1982

Drawing Specifies the Compleated Part

Parts List

DESCRIPTIONPART NUMBERQTYITEM

PIN, SPLASH17-A855911

BOLT, SOCKET HEAD, 1/4-20, 1/2 L, GR. 8, B. OX.32-112712

WASHER, LOCKING, 1/420-101713

BOLT, CONNECTING ROD32-A856024

CONNECTING ROD7-C301615

BEARING, ROD JOURNAL, 2V-3V MODELS21-585416

WASHER, AN FLAT, 5/1620-1024127

NUT, LOCKING, 5/16-24 UNF53-1024028

BEARING, NEEDLE B1616181-706619

A A

NOTES: 1.MATCH MARK CONNECTCONSECUTIVE ALPHA CH2. TORQUE ROD BOLTS TO

SEE NOTE #1.

3

8 9

5

(3.27)

2

7

1

4

6

A

C

C

8/19/2019 2V2B


CH

QA

SIM

1/16

1/32 5

1/8



DECIMAL

FRACTIONS

WELDSCHAMFERS

ANGLESCAST

.X .1

.XX .02

.XXX .005


2

CO

PROPRIETARY DRAWING


DR

AP

NOTES:

1. RIX COMPRESSOR MODEL 2V2B-8.6 INLET PRESSURE: 5 BARG (72.5 PSIG)

DICHARGE PRESSURE: 35 BARG (508 PSIG)FLOW RATE: 48 NM3/H (30 SCFM)

2. PACKAGE WEIGHT: 750 LBS 3. MOTOR: 10HP, 400/3/50, 1500 RPM

SUCTION GAGE

1ST STAGE GAUGE

2ND STAGE GAUGE

DRIVE MOTOR

(21 3/4)

(6X SLOT 3/4 X 1 1/8L)

(44 3/8)

( 48 1/4)

14.002X ( )(4.00)

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SYM PART NO. DESCRIPTION Material QTY

300 54P-1MROSS MALE RUN PIPE TEE, 1" NPT SS 1

301 54D-1610116SS MALE CONNECTOR, 1" T X 1" NPT SS 1

302 54D-1610116STSS MALE CONNECTOR, 1" T X 1-5/16-12 MS SS 1

303 123-916-5 O-RING VITON 3

304 123-904-5 O-RING VITON 3

305 54D-810116SS MALE CONNECTOR, 1/2" T X 3/4" NPT SS 1

306 123-906-5 O-RING VITON 3

307 54D-81016STSS MALE CONNECTOR, 1/2" T X 9/16-18 MS SS 1

308 54D-4003TTSSS MALE BRANCH TEE, 1/4" T X 7/16 MS SS 1

309 54D-40074SS FEMALE CONNECTOR, 1/4" T X 1/4 NPT SS 2

310 54D-1210116STSS MALE CONNECTOR, 3/4" T X 1-5/16-12 MS SS 2

311 54D-1210610SS REDUCING UNION, 3/4" T X 5/8" T SS 1

312 123-910-5 O-RING VITON 1

313 54P-101/2F5OFSS MALE PIPE ADAPTER, 7/8-14 MS X 1/2" NPT SS 1

314 54P-1/2MMOSS FEMALE PIPE TEE, 1/2" NPT SS 1

315 54P-1/21/8PTRB PIPE THREAD REDUCER, 1/2" NPT X 1/8" NPT BRASS 1


317 54D-1010R16SS TUBE END REDUCER, 1" T X 5/8" T SS 1

318 54D-16103126SS TUBE TEE UNION,1" T X 3/4" T X 3/8" T SS 1

319 455-B6239 GAUGE LINE TUBE, 1/4" T SS 3

320 54D-40024STSS MALE ELBOW, 1/4" T X 7/16-20 MS SS 3

321 455-C2577 SUCTION PRESSURE TUBE, 1/4" T BRASS 1

322 54D-101068SS REDUCING UNION, 1/2" T X 5/8" T SS 1

323 54D-60026STSS MALE ELBOW , 3/8" T X 9/16-18 MS SS 2

324 54D-10103106SS REDUCING TEE, 5/8" T X 3/8" T SS 1

325 54D-810384SS REDUCING TEE, 1/2" T X 1/4" T SS 1


327 54D-40014SS MALE CONNECTOR, 1/4" T X 1/4" NPT SS 3328 54-4746 PIPE NIPPLE, 1/8" NPT, 2L STEEL 2

329 54W-70X4B MALE ELBOW, 1/4" T X 1/8 MPT BRASS 2

330 54W-64X4B UNION TEE, 1/4" T BRASS 1

331 455-C2574-2 1/4" TUBE BRASS 1

332 455-C2574 1/4" TUBE BRASS 1

333 455-C2574-1 1/4" TUBE BRASS 1

334 54P-1/21/4PTRSS PIPE THREAD REDUCER SS 2

335 54D-810R10SS REDUCING UNION, 5/8" T X 1/2" T SS 1

A 6-1089 1" TUBE SS 1

B 6-1064 3/4" TUBE SS 1

C 6-1063 1/2" TUBE SS 1

D 6-1037 3/8" TUBE SS 1 E 6-1046 1/4" TUBE SS 1

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8/19/2019 2V2B


GENERAL

BEFORE INSTALLING, CHECK THE SENSOR MODEL SELECTED FORCOMPATIBILITY TO THE PROCESS MEDIA IN CONTACT WITH THE SENSOR AND WETTED PARTS.

The Spectra-10 pressure switch utilizes a diaphragm or piston sensor to detect apressure change. The response, at a predetermined set point, actuates a SPDTsnap-acting switch, converting a pressure signal into an electrical signal. Control setpoint may be varied by turning the internal slotted adjustment screw bushing accord-ing to procedures outlined in this document.

PROOF PRESSURE* LIMITS STATED IN THE LITERATURE AND ONNAMEPLATES MUST NEVER BE EXCEEDED, EVEN BY SURGES IN THESYSTEM. OCCASIONAL OPERATION OF UNIT UP TO PROOF PRESSURE IS

ACCEPTABLE (E.G., START-UP, TESTING). CONTINUOUS OPERATION SHOULD NOT

EXCEED THE DISIGNATED OVER RANGE PRESSURE.

*Proof PressureThe maximum pressure to which a pressure sensor may be occasionally subjected,which causes no permanent damage (e.g., start-up, testing).

THESE PRODUCTS DO NOT HAVE ANY FIELD REPLACEABLE PARTS.

Please refer to product bulletin for product specificat ions. Product bulletin may befound at www.ueonline.com

Tools Needed

11/16" Open end wrench

Screwdriver for customer-

supplied mounting screws

(option M449 only)

MOUNTING

ALWAYS LOCATE UNITS WHERE SHOCK, VIBRATION AND AMBIENT TEMPERATUREFLUCTUATIONS ARE MINIMAL. DO NOT MOUNT IN AMBIENT TEMPERATURE AREASEXCEEDING 160° F (WITH BUNA N CONSTRUCTION) OR 180°F (WITH VITON

CONSTRUCTION). IF SEVERE PRESSURE SURGES ARE EXPECTED, CONSIDER THE USE OF APRESSURE SNUBBER.

MOUNT USING PRESSURE CONNECTION: ALWAYS USE A WRENCH ON PRES-SURE CONNECTION WRENCH FLATS. UNIT MAY BE MOUNTED IN ANY POSITION.HOWEVER, IF INSTALLATION LOCATION RESULTS IN FREQUENT EXPOSURE TO

LIQUID, IT IS RECOMMENDED THAT THE UNIT BE MOUNTED VERTICALLY WITH THE PRES-SURE CONNECTION DOWN. IF UNIT IS TO BE SET AFTER MOUNTING, RAISE ADJUSTMENTCOVER, THEN THREAD IN PRESSURE CONNECTION UNTIL SNUG. VERIFY THAT ADJUSTMENTOPENING IS ACCESSIBLE.

Panel mounting via 1/2" NPT (male) Electrical Connection

(termination type C)

Mount through 7/8" clearance hole in panel. Hold in place with serrated 1/2" conduit nut. Always support the unit by holding a wrench on the 11/16" hex nearest the conduit connec-tion.

IM10-07

Spectra 10 Series

Pressure Switch

Please read all instructional literature carefully and thoroughly before starting. Refer to the final page for the listing of Recommended

Practices, Liabilities and Warranties.

Part I - Installation

Optional Surface Mounting Bracket (option M449)

The surface mounting bracket is a “C” style clamp with a single clearance hole toaccommodate a 1/4" screw. Insert the unit into the bracket, pressure connec-tion end first. Open the adjustment cover and mount the unit so that adjustmentopening will be accessible when the switch is mounted. Close the adjustment coverensuring that the bracket does not interfere with the cover. Failure to do so may resultin improper sealing of adjustment cover. Mount assembly in desired location.

WIRING

DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING UNIT. ELECTRI-

CAL RATINGS STATED IN LITERATURE AND NAMEPLATES MUST NOT

BE EXCEEDED. OVERLOAD ON A SWITCH CAN CAUSE FAILURE ON THE

FIRST CYCLE.

WIRE IN ACCORDANCE WITH LOCAL AND NATIONAL ELECTRICAL CODES.

Termination Type A, 0.11" push-on terminals

Unit is supplied with male and female terminals. Insert 18-22 AWG stripped lead-wire into female terminal and crimp using appropriate hand tool. Refer to molded-in N.O., N.C., and COM designations for proper wiring.

Termination Type B, 0.25" push-on terminals

N.O., N.C., and COM terminals require 1/4” female push-on terminals.Insulated female terminals are recommended for safety. Use non-conductiveprotective grease for corrosion resistance in outdoor use.

Termination Type C & D, 18" leads 18 AWG

Color coding:

Terminals

Color

N.O. BlueN.C. BlackCom Violet

TO ATTACH TYPE C TO CONDUIT CONNECTION, HOLD ELECTRICAL CON-NECTION STEADY WITH WRENCH ON HEX, THEN THREAD ON CONDUIT.

Termination Type E, 1/2 NPT with 5’ cord

Cut cord to desired length. Strip back insulation. Color coding:

Terminals

Color

N.O. RedN.C. BlackCom White

TO ATTACH TYPE E TO CONDUIT CONNECTION, HOLD ELECTRICAL CON-NECTION STEADY WITH WRENCH ON HEX, THEN THREAD IN CONDUIT.

Termination Type F, DIN Connector with 4 Male Terminals

Connector conforms to DIN 43650, Form A. Use a mating DIN connector (femaletype, not UE supplied). Coding:

Terminals

Terminal #1 CommonTerminal #2 Normally ClosedTerminal #3 Normally OpenTerminal #4 Not used

Termination Type G, 5’ cord

Cut cord to desired length. Strip back insulation. Color coding:

Terminals

Color

N.O. RedN.C. BlackCom White

Installation and Maintenance

Instructions

UN I TED E LECTR IC

CO N T R O L S

IM10-07 A8101 PRESSURE SWITCH SPEC SHEET RIX P/N X76-714, 76-715, 76-716, X76-735

8/19/2019 2V2B


For setting on rise, apply desired pressure and turn adjustment left until switch actu-

ates (circuit across N.O. and COM terminals closes). For setting on fall, apply pressure

equal to normal system operating pressure. Reduce source pressure to setpoint

value. Turn adjustment right until switch actuates (circuit across N.C. and COM closes).

5. After completing adjustments, slide cover closed over adjustment compartment.

Recheck set point.

CP110825K

Tools Needed

Screwdriver 1. Connect control to pressure source.

2. With power disconnected, slide cover towardelectrical terminations while twisting it to overcomefriction.

3. Connect power to terminals or leads.

4. Insert screwdriver into adjustment slot and turn leftto increase setting or right to decrease setting.

Part II - Adjustments

DimensionsDimension A

Diaphragm Piston

Model 10-12 Model 13-16

10-A 3” 3.31”76.2 mm 84.1 mm

10-B 3.5” 3.81”88.9 mm 96.8 mm

10-C 4.06” 4.38”103.2 mm 111.1 mm

10-D 3.19” 3.5”81.0 mm 88.9 mm

10-E 3.9” 4.25”100 mm 108 mm

10-F 4.13” 4.44”104.8 mm 112.7 mm

10-G 3.88” 4.19”98.4 mm 106.4 mm

RECOMMENDED PRACTICES AND WARNINGS

United Electric Controls Company recommends careful consideration

of the following factors when specifying and installing UE pressure and temper-

ature units. Before installing a unit, the Installation and Maintenance instruc-

tions provided with unit must be read and understood.

-

-

ture is acceptable on a limited basis (e.g., start-up, testing) but continuous

-

essary for applications where a dangerous runaway condition could result.

malicious setting at any range point cannot result in an unsafe system

condition.

will not damage unit or affect operation. Orient unit so that moisture does

not enter the enclosure via the electrical connection. When appropriate, thisentry point should be sealed to prevent moisture entry.

-

cation is necessary.

applications where damage could endanger property or personnel.

Wire unit according to local and national electrical codes, using wire size

recommended in installation sheet.

LIMITED WARRANTY

Seller warrants that the product hereby purchased is, upon delivery, free from

however, that this warranty applies only to equipment found to be so defective

within a period of 24 months from the date of manufacture by the Seller. Seller

-

tion discloses are due to tampering, misuse, neglect, improper storage, and in

any case where products are disassembled by anyone other than authorized

LIMITATION OF SELLER’S LIABILITY

Seller’s liability to Buyer for any loss or claim, including liability incurred in

(ii) a breach of contract, (iii) a negligent act or acts (or negligent failure to

act) committed by Seller, or (iv) an act for which strict liability will be inputted

to seller, is limited to the “limited warranty” of repair and/or replacement as

so stated in our warranty of product. In no event shall the Seller be liable for

any nature incurred by the buyer or any third party.

UE specifications subject to change without notice.

Dimension B

Model 10-12: 1/8 NPTModel 13-16: 1/4 NPT

Type 10-A

“A”

“B”

Type 10-C

“A”

Type 10-D

“A”

“B”

Type 10-G

“A”

“B” Type 10-F

“A”

“B”180 Dexter Avenue, P.O. Box 9143

Watertown, MA 02471-9143 USA

Telephone: 617 926-1000 Fax: 617 926-2568

http://www.ueonline.com

UN I TED E LECTR IC

CO N T R O L S

IM10-07

“A”

“B”

Type 10-E

Type 10-B

“A”

“B”

A8101 PRESSURE SWITCH SPEC SHEET RIX P/N X76-714, 76-715, 76-716, X76-735

8/19/2019 2V2B


REV (-)

8/19/2019 2V2B


A10386 MOTOR SPEC SHEET RIX P/N 107-7072 REV (-)

8/19/2019 2V2B


2V3-4.1V MOTOR WIRING DIAGRAM

190 V 50 HZ

ALSO

380 V 50 HZ

ALSO

2v2b

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