installation manual for vmac systems v900088 · 2007 freightliner m2 7.2l caterpillar c7 acert...

VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622 Fax: 1-250-740-3201

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Installation Manual for VMAC Systems V900088

2007 Freightliner M2 7.2L Caterpillar C7

ACERT Inter-cooled Diesel with Allison Automatic Transmission

General Information..................................................................... 3 Before You Start ....................................................................... 3

Part 1: Installing the Control Components .............................. 4 1.1 Locating the Modules and Wires........................................ 5 1.2 Installing Components........................................................ 8 1.3 Connecting the Wiring ........................................................ 9

Part 2: Preparing for Installation............................................... 12 Part 3: Installing the Bracket, Compressor and Cooler......... 14

3.1 Installing the Main Bracket and Compressor ..................... 14 3.2 Installing the Cooler............................................................ 16

Part 4: Installing the Tank and Hoses....................................... 20 4.1 Installing the Tank .............................................................. 20 4.2 Connecting the Steel Lines and Hoses .............................. 21 4.3 Completing the Installation ................................................. 22 4.4 Adding Oil to the System.................................................... 23

Part 5: Finishing and Testing ..................................................... 24 5.1 Before Starting the Engine Checklist ................................. 24 5.2 After Starting the Engine Checklist..................................... 24 5.3 Testing Operation............................................................... 25 5.4 Setup, Performance Testing and Adjustments................... 26 5.5 System Identification and Warnings................................... 27 5.6 Auxiliary Air Receiver ......................................................... 28

Accessory Products from VMAC ............................................... 29

VMAC – Vehicle Mounted Air Compressors Toll Free: 1-800-738-8622

Fax: 1-250-740-3201 2

Document #1930123 Installation Manual for VMAC Systems V900088 2007 Freightliner M2 7.2L Caterpillar C7 ACERT Inter-cooled Diesel with Allison Automatic Transmission Changes and Revisions

Version Revision Details Revised by/date Approved by/date Implemented 000 Draft creation IB 22 June 2006 BC 17 Jul 2006 21 Jul 2006 A ECN 06-197 pulley install IB 29 Sept 2006 SM 05 Oct 2006 06 Oct 2006

Important Information The information in this manual is intended for certified VMAC installers who have been trained in installation procedures and for people with mechanical trade certification who have the tools and equipment to properly and safely perform the installation. Do not attempt this installation if you do not have the appropriate mechanical training, knowledge and experience.

Follow all safety precautions for underhood mechanical work. Any grinding, bending or restructuring operations for correct fit in modified trucks must follow standard shop practices.

These instructions are a general guide for installing this system on standard production trucks and do not contain information for installation on non-standard trucks. This system may not fit special order models or those which have had other changes without additional modifications. If you have difficulty with the installation, contact VMAC.

The VMAC warranty form is located at the back of this manual. This warranty form must be completed and mailed or faxed to VMAC at the time of installation for any subsequent warranty claim to be considered valid.

To order parts, contact your VMAC dealer. Your dealer will ask for the VMAC serial number, part number, description and quantity. To locate your nearest dealer, call 1-800-738-8622.

Copyright 2006 All trademarks used in this manual are the property of the respective copyright holder.

The contents of this manual may not be reproduced in any form without the express written permission of VMAC, 1333 Kipp Road, Nanaimo, BC V9X 1R3.

Printed in Canada


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General Information

Before You Start Read this manual before attempting installation so that you can familiarize yourself with the components and how they fit on the truck. This manual should be read completely before attempting installation. Open the package, unpack the components and identify them.

All fasteners must be torqued to specifications. Use manufacturers torque values for OEM fasteners. Apply Loctite 242 or equivalent on all engine-mounted fasteners. Torque values are with Loctite applied unless otherwise specified.

STANDARD GRADE 8 NATIONAL COARSE THREAD Size 1/4 5/16 3/8 7/16 1/2 9/16 5/8 ¾ Foot-pounds (ft-lb) 9 18 35 55 80 110 170 280 Newton meter (N•m) 12 24 47 74 108 149 230 379 STANDARD GRADE 8 NATIONAL FINE THREAD Size 3/8 7/16 1/2 5/8 ¾ Foot-pounds (ft-lb) 40 60 90 180 320 Newton meter (N•m) 54 81 122 244 434 METRIC CLASS 10.9 Size M8 M10 M12 M14 M16 Foot-pounds (ft-lb) 19 41 69 104 174 Newton meter (N•m) 25 55 93 141 236

Hose Coding

Different frame designations will affect the tank mounting position. If you have to move the tank, the lines may be too short. Measure the hose shortfall and order a Hose Extender Kit. The following table shows the color code used by VMAC to identify hose diameters.

Hose Diameter Colour-Coded Label 1/4 inch 5/16 inch 1/2 inch 5/8 inch 3/4 inch 1 inch

Yellow Orange Blue Blue Green Green


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Part 1: Installing the Control Components

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The VMAC throttle control uses the dedicated PTO function which must be programmed by an OEM qualified technician.

The PTO configuration must be set to:

• remote throttle • PTO shut down time = 0 (default) • PTO top engine limit = 2750 (default)

If the engine is programmed before the VMAC throttle is installed, the system will check for a signal when the ignition is on in PTO mode. The check engine light will illuminate but will shut off once the throttle is installed. 1.1 Locating the Modules and Wires Locate the bulkhead, engine control, transmission and chassis modules (Figure 1.1). 1.1.1 Bulkhead Module The bulkhead module is located on the driver’s side of the engine compartment, mounted on the firewall, with connectors on the engine side and the cab side of the module. Remove the kick plate from under the dash on the driver’s side to access the connectors. Locate the wire at location “G” on the top connector inside the cab of the truck (Figure 1.2). Test the wire with a voltmeter to ensure that there is 12 Volts with the ignition switch in the ON position and no Volts with the switch in the OFF position.


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Bulkhead Module Chassis Control Module

Transmission Control ModuleEngine Control Module

Figure 1.1

Engine Compartment Cab Under Dash

Firewall

Top ConnectorB5 Dash Harness

ABCD

HGFE

Figure 1.2


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1.1.2 Chassis Module The chassis module is located on the driver’s side frame rail under the cab. Locate the wire at pin “F” on connector C3 (Figure 1.3) Check continuity between the pin and ground. There should be continuity when the park brake is applied and an open circuit when the park brake is released.

HGFEDCBA

JKLMNPRS

Black wire

Figure 1.3 1.1.3 Transmission Module The transmission module is located on the driver’s side frame rail under the cab. For THIRD generation controls on 3000 series Allison automatic transmissions (Figure 1.4) locate pin 2 of the gray connector. For FOURTH generation controls on Allison 1000/2000 product families, 3000 product families and 4000 product family automatic transmissions, remove the harness tape and locate wire 145. With the engine running, check for continuity to ground in both Park and Neutral and an open circuit in all other gears.


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16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

THIRD GENERATION CONTROLS

Figure 1.4 1.1.4 Engine Control Module The engine control module is located on the driver’s side rear of the engine. 1.2 Installing Components

□ Disconnect the battery ground cable.

□ Install the throttle controller inside the cab under the dash next to the driver’s door. Attach it to the main wire harness with tie straps.

□ If the truck has a manual transmission, cut the long blue wire from the throttle control to about six inches and connect it to the short blue wire with the crimp connector.

□ Install the control box in a suitable location for easy access. You can mount it to the floor between the driver’s seat and the door so that it can be accessed from inside or outside the cab and route the wiring under the side door trim and under the dash.

□ Connect the white interface connector to the matching connector from the control box.

□ Connect the two red wires from the interface connector to the red wires with the matching connectors from the throttle controller.


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□ Route the following wires through an available access port just above the throttle pedal: • black wire from the interface connector • black, orange and white wires from the throttle controller • long red wire with the female spade connector • if the truck has an automatic transmission, the long blue wire

from the throttle controller • purple wire with female spade connector • the cable with the black three pin connector from the throttle

controller • cable with the green four pin connector from the control box • white wire with the bullet connector from the interface

connector

□ Fasten the green throttle wire and the green interface cable wire to an existing chassis ground.

□ Leave the cables with the three and four pin connectors and the white wire with the bullet connector for connection to the compressor once it is installed.

1.3 Connecting the Wiring 1.3.1 Bulkhead Module

□ Install a relay in the engine compartment next to the bulkhead module.

□ Connect the long red wire with the female spade connector from the interface connector to pin 30 on the relay.

□ Connect pin 85 to a good chassis ground.

□ Connect pin 87 to a 12 Volt source.

□ Connect pin 86 on the relay to connector B5 wire “G” at the bulkhead connector using the purple wire (Figure 1.2).


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1.3.2 Engine Control Module

□ Cut the tie wraps holding the ECM cover and remove the plastic cover.

□ Remove the rear connector (J1/P1) on the engine control module (Figure 1.5).

1 2 3 4 5 6 7 8 9 10 11 12 13

58 59 60 61 62 63 64 65 66 67 68 69 70

14 2324 3132 3940 4748 57

Shown from wire side of connector

Black wire Orange wire

White wire

ConnectorP1-J1

Figure 1.5

□ Push out the small white pin protectors at pins 3, 56 and 68 with a small pin punch.

□ Install the ECM connector and torque the Allen head screw to 55 inch-pounds (6 Nm).

□ Insert the connectors as follows: • black wire into pin socket 3 • orange wire into pin socket 56 • white wire into pin socket 68

□ Check each wire to make sure pins have locked in the sockets.

□ Secure all wiring away from hot or moving parts, install the plastic ECM cover and tie-wrap all wires


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1.3.3 Transmission Control Module

□ On THIRD generation controls on 3000 series Allison automatic transmissions, connect the long blue wire to at pin 2 of the gray connector (Figure 1.4). Solder and seal the connection (if there is a wire at this location) or install the supplied wire.

□ On FOURTH generation controls on Allison 1000/2000 product families, 3000 product families and 4000 product family automatic transmissions, solder and seal long blue wire to transmission wire 145. Strain relief and loom the long blue wire along the chassis wiring.

1.3.4 Chassis Module

□ Connect the black wire from the interface connector to the wire at pin “F” on connector C3 of the chassis module (Figure 1.3). Solder and seal the connection.


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Part 2: Preparing for Installation

□ Drain the cooling system.

□ Remove the outer bolts from the bumper extensions, loosen the inner bolts and swing the bumper extensions forward to gain access to the engine compartment.

□ Remove the four bolts holding the passenger side hood hinge to the frame. Insert the 3/4 inch spacer block between the hood hinge and the frame and insert the replacement 3/8 x 2 inch bolts and tighten securelyly. Repeat this procedure on the driver side hinge.

Check headlight alignment before releasing the truck into service as the addition of the 3/4 inch spacers will deflect the hood and the headlights upward.

□ Remove the power steering reservoir but do not disconnect the hoses.

□ Remove the upper radiator hose and the intercooler tube on the driver side; disconnect the radiator overflow hose from the passenger side of the radiator.

□ Disconnect the brace bars from both sides of the top of the radiator and move them outward slightly to make removal of the fan and shroud easier.

□ Remove the OEM belt, then remove the fasteners from the fan shroud and remove the fan, clutch assembly and shroud together.

□ Clean the inside of the crankshaft pulley and remove the bolts securing it to the harmonic balancer. Do not rotate the crankshaft pulley as this may cause engine imbalance.

□ Place the crank pulley adaptor spacer on the rear of the VR crank pulley with the lip on the pulley sitting correctly in the recess of the adaptor. Align the holes.


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□ Position the pulley and adapter on the front of the harmonic balancer with the pins in two of the crankshaft bolt holes.

□ Place the OEM crank pulley bolt ring plate on the front of the VR crank pulley.

□ Apply Loctite to the supplied M10 x 100 mm bolts, thread them into the pulley holes and torque them to specifications.

□ Remove the fan from the fan clutch assembly.

□ Install the five studs into the fan spacer.

□ The fan and fan shroud must be installed together. To do this you can attach the fan to the fan clutch assembly and install the assembly and shroud together or install the fan clutch assembly first; then install the shroud and the fan. Use the supplied 3/8 nuts to secure the fan onto the studs and tighten all fasteners.

□ Install the OEM belt.

□ Install the brace bars.

□ Install the radiator overflow hose on the passenger side of the radiator.

□ Disconnect the steel lines from the fuel filter, remove the three bolts holding the fuel filter to the engine block and remove the filter assembly.

□ Remove and discard the small bracket attached to the engine lift bracket, then remove the steel fuel lines from the engine fittings.

□ Install the 90 degree swivel fitting to the fuel fitting on the front of the cylinder head.

□ Connect the 45 degree end of one of the fuel hoses to the swivel fitting. Adjust it to clear the head and bracket, then tighten the fittings.

□ Connect the 90 degree end of the other fuel hose to the fitting on the back of the fuel pump.


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Part 3: Installing the Bracket, Compressor and Cooler

3.1 Installing the Main Bracket and Compressor

□ Remove the idler pulleys and the belt tensioner from the main bracket.

□ Place the compressor bracket in position on the driver’s side front of the engine block. Apply Loctite and install two M10 x 60 mm bolts, one M10 x 55 mm bolt and one M10 x 35 mm bolt (Figure 3.1). Make sure that the bracket sits flush against the mounting points and tighten the bolts.

M10 x 60 mm

M10 x 35 mmM10 x 55 mm

OEM 10 mm fuelfilter mount bolts

M10 x 35 mm boltwith flat washer

Mount fuel filter here

Figure 3.1


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During tightening, make sure that alignment is correct and there are no gaps. Do not use the bolts to force gaps to close, check and correct the reason for the gap.

□ Install the idler pulleys and the belt tensioner onto the main bracket. Use Loctite on the fasteners and torque to specifications.

□ Mount the filter housing to the front of the compressor bracket using two of the OEM bolts and one supplied M10 x 35 mm hex head bolt with flat washer.

□ Rotate the front fuel line fitting 90 degrees clockwise so that the fitting points upward. Rotate the top fitting a few degrees counterclockwise to provide clearance for the hose.

□ Connect the new fuel line hoses to the fittings on the fuel filter.

□ Prime the fuel system with the pump on the filter assembly. If you do not clear the air in the hose between the injector pump and the filter, air will enter the fuel system and the engine will not start.

□ Install the power steering reservoir using the three spacers, the supplied 3/8 x 2 inch bolts and the OEM nuts.

□ Install the intercooler tube.

□ Place the compressor in position on the bracket and fasten it in place using the supplied bolts.

□ Install the VR compressor drive belt (Figure 3.2).


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Figure 3.2

3.2 Installing the Cooler

□ Remove the steel heater return line standoff bracket from the engine block on the passenger side, just behind the engine oil filter.

□ Fasten the cooler mounting plate to the passenger side of the engine block with two M14 x 30 mm bolts into threaded holes near the front of the block. Place the standoff bracket over the rear hole in the mounting plate and insert an M10 x 55 mm bolt (Figure 3.3). Tighten all fasteners.

□ Attach the cooler to the mounting plate using the supplied nuts and washers.

□ Remove the lower radiator hose from between the radiator and the transmission cooler. Rotate it 90 degrees so that the radiator end of the hose faces backward.


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□ Attach the long end of the U-shaped hose to the rear spigot on the cooler. Install the long steel coolant tube between the OEM radiator hose and the U-shaped hose on the rear spigot of the cooler with the longest section of the steel tube at the cooler end.

Cooler

Mounting plate

To OEM lower coolant hose

Coolant bypass hose

Line from compressor

Line fromtank

Figure 3.3

□ Install the shorter steel coolant tube between the hose on the front spigot of the cooler and the lower radiator hose connection, using the supplied section of hose between the tube and the radiator. Adjust all tubes and hoses for best fit and tighten the clamps.


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□ Remove the plug from the fitting on the back of the thermostat housing, inboard of the steel heater line.

□ Install the supplied ORB fitting into the head, then the spigot fitting and connect the supplied 3/4 inch hose between the fitting on the thermostat housing and the fitting on the steel tube at the cooler. Tighten the clamps and secure the hose to the steel heater return line with a nylon tie to prevent it from rubbing.

□ Connect the 90 degree end of the shortest 1/2 inch hose to the rear fitting on the cooler, route it between the engine oil pan and the transmission cooler and up to the compressor. Connect it to the matching fitting on the compressor.

□ Install the supplied hose to the top radiator spigot and insert the supplied steel coolant tube (Figure 3.4) into the other end.

Supplied steel tube

Insulated P-clip

Supplied hose

OEM hose

Figure 3.4


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□ Place the OEM hose on the engine coolant spigot and mark the hose, allowing sufficient length for clamping to the steel tube, then cut and install the engine end of the OEM hose. Adjust for best fit and tighten all the clamps. Install the P-clip and fasten it to the fan shroud with the supplied 5/16 bolt and nut. Insert the bolt from the underside of the fan shroud.

□ Close the radiator drain and fill the cooling system with the manufacturer recommended coolant.


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Part 4: Installing the Tank and Hoses

4.1 Installing the Tank The tank is installed on the passenger side frame rail. The brackets can be bolted to the frame using OEM bolts or clamped to the frame using the brackets with back straps (Figure 4.1).

Mount brackets

Mount brackets

MOUNT BRACKETS BOLTED ONTO THE FRAME RAIL

MOUNT BRACKETS CLAMPED ONTO THE FRAME RAIL

Step support

Figure 4.1


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Changing the position of the tank may require longer hoses. A hose extender kit is available from VMAC.

□ Remove the four OEM bolts from the frame rail. They are located on the passenger side frame just behind the rear step support and in front of the drive shaft center support bearing cross-member.

□ Place the brackets in position on the frame, install the bolts from the outside with the nuts on the inside and torque to specifications.

□ Remove the pinch bolts and slide the two C-clamps over the tank. Install the pinch bolts but do not tighten.

□ Place the tank and C-clamps on the brackets, align the holes in the C-clamps with the holes in the brackets and install M8 x 30 mm inch bolts with washers, but do not tighten.

□ Adjust the tank position along the frame to provide sufficient clearance for the fittings and filter at the front of the tank. Rotate the tank so that the UP arrow on the back of the tank points straight up, then tighten both C-clamp pinch bolts securely.

□ Tighten the bolts that secure each C-clamp to the brackets. 4.2 Connecting the Steel Lines and Hoses

□ Thread the fittings on the 5/16 and 1/4 inch steel line/hose assemblies into the matching fittings on the back of the tank, but do not tighten. Route the steel lines over the top of the tank and against the tank brackets.

□ Fit the insulated P-clips over the two steel lines and fasten each one into the threaded hole on the tank mount bracket to secure the lines. Tighten the P-clip bolts, then tighten the fittings on the back of the tank.

□ Install a suitable connector for your air system into the air outlet on the back of the tank.


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□ Connect one end of the 3/4 inch hose to the fitting on the front of the tank but do not tighten the fitting.

□ Connect the straight end of the longest 1/2 inch hose to the front of the tank but do not tighten the fitting. Connect the 90 degree end of this hose to the front fitting on the oil cooler.

□ Route the 3/4, 5/16 and 1/4 inch hoses over the step brackets and over the transmission at the back of the engine block up to the compressor. Secure these lines with insulated P-clips or nylon ties at regular intervals to prevent movement and to keep them away from the exhaust or other hot items.

Select a route that will clear the exhaust, turbocharger piping and any sharp objects or moving parts.

□ Connect these hoses to the matching fittings at the compressor and tighten all hose fittings.

4.3 Completing the Installation

□ Remove the filter from the front of the tank and remove the cardboard protector. Fill the filter with VMAC compressor oil and lightly lubricate the gasket.

□ Thread the filter in place and tighten 3/4 – 1 turn after the gasket contacts the base.

□ Check all hose fittings and fasteners to make sure that they have been properly tightened or torqued to specifications.

□ Check hose routing and security to make sure that they will not contact any hot or moving objects.

□ Connect the wire harness with the black three pin connector, the harness with the green four pin connector and the white wire with the bullet connector to the matching connectors at the compressor. Protect the wires with plastic loom and secure it in place with nylon ties.

□ Connect the battery ground cable.


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4.4 Adding Oil to the System

□ Remove the fill plug from the air inlet control valve and pour oil into the oil fill hole on the inlet control valve using a funnel.

You must use the supplied VMAC compressor oil in this system. Failure to use this special oil will result in damage to the compressor and will void your warranty.

□ Turn the compressor clutch clockwise with a ratchet and a 1/2 inch socket using the hex head bolt at the centre of the compressor clutch during the fill process.

□ Allow 5 minutes for the oil to drain into the tank, check the level at the sight glass and continue adding oil until the level is correct.

Do not overfill the system, as this can flood the sight glass window and make the system appear empty.

□ Install the fill plug in the inlet control valve and tighten it securely.

!

!


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Part 5: Finishing and Testing

5.1 Before Starting the Engine Checklist Make sure that the following have been completed:

□ Check the coolant.

□ Check the compressor oil level.

□ Do a final inspection to make sure that everything has been connected and tightened.

□ Perform a final belt alignment check.

□ Check all wiring and hoses for security and protection.

5.2 After Starting the Engine Checklist Make sure that the following have been completed:

□ Road test the truck for approximately 14 miles (20 km)

□ Watch the underhood operation to make sure that belts rotate properly and nothing is rubbing or contacting hot parts.

□ Check all components once the engine is turned off and the system has cooled

□ Check the coolant after the engine reaches operating temperature.

□ Check the compressor oil level after the engine has been shut down and the oil level has had time to stabilize.


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5.3 Testing Operation

□ With the engine running and the truck in neutral, set the park brake and switch the compressor “ON”.

□ The green LED on the control box should illuminate. Engine speed should increase to 1800 RPM and then idle down to approximately 900 RPM once full tank pressure has been reached (150 psi).

□ Disengage the park brake. The control box LED should flash, idle speed will drop to base and the compressor will not function.

□ Engage the park brake, turn the control box “OFF” and then “ON” and the compressor will function again.

WARNING: if the wiring at the transmission has not been connected correctly, engine speed will increase if the compressor is switched “ON”. Ensure that no one is around the truck, the wheels are securely blocked, the park brake is engaged and apply the service brake pedal firmly before switching the compressor “ON”.

□ Switch the control box “OFF”. With the engine at idle, shift the transmission into drive and switch the compressor “ON”. The control box LED should illuminate, the compressor clutch should engage but engine speed should not increase.

□ Place the transmission back into neutral. The compressor clutch will remain engaged but engine speed will not increase.

□ Turn the control box “OFF” and then “ON”. The green LED on the control box should illuminate. Engine speed should increase to 1800 RPM and then idle down to approximately 900 RPM once full tank pressure has been reached (150 psi).

!


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5.4 Setup, Performance Testing and Adjustments This system has been adjusted at the factory for general operation. If your tests indicate that adjustment is necessary, refer to the owner’s manual for specific instructions on how to adjust the system.

You can test the system operation using the tools that will be operated by the system or you can test operations sing an orifice in the outlet to simulate tool use (Figure 5.1).

Figure 5.1

1. Install the test tool in the tank outlet fitting.

2. Make sure that the ball valve is closed.

3. Place the manual transmission in neutral or the automatic transmission in park and fully apply the park brake.

4. Allow the engine to run until it is at operating temperature.

5. Operate the air compressor system until the oil is warm.

6. Observe the pressure gauge. Pressure should be approximately 150 psi.

7. Open the ball valve on the test tool and observe the engine tachometer. Engine speed should increase to about 1,800 - 2,200 RPM.

8. Close the air valve slowly to allow the system pressure to rise.

9. Once the system pressure is at maximum, slowly open the ball valve on the test tool until the pressure on the gauge begins to drop. Engine speed should start to ramp-up when air pressure drops to approximately 140 PSI.


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5.5 System Identification and Warnings Mark and drill two 7/64 inch holes, then secure the System Identification Number plate with self-tapping screws (Figure 5.2). This plate provides information which allows VMAC to assist in customer inquiries and the ordering of parts..

Install ID plate here

Driver’s door

Firewall

Figure 5.2

As part of the installation process, ensure that the safety and operational instruction decal is affixed in an obvious location so that it can be seen by truck operators (Figure 5.3).

Daily Pre-Start Check Start Up Procedure Shutdown Procedure

This Vehicle is Equipped with a VMAC Air Compressor System

1. Check Oil Level in Tank2. Check Drive Belt3. Check for Leaks

1. Allow engine to idle for 1 minute2. Turn OFF compressor3. Wait for system to discharge for 1 minute before restarting

1. Ensure Compressor is OFF2. Ensure discharge valve is CLOSED3. Ensure air system is discharged4. Place vehicle in Neutral or Park and engage vehicle safety features - park brake5. Start engine and bring up to operating temperature6. Turn ON compressor

For Technical Support/Parts contact your VMAC DealerTo locate your nearest dealer call 1-800-738-8622 (250-740-3200)

OPERATING INSTRUCTIONS

Always allow system pressure to discharge before restartingWARNING!

Figure 5.3


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5.6 Auxiliary Air Receiver

If you intend to use an auxiliary air receiver with this system you must observe the following installation procedure to prevent damage to the system.

The line from the VMAC tank to the auxiliary air receiver must have a one-way check valve installed (part #3600078) to prevent blow back from the auxiliary tank to stop moisture from entering the VMAC tank (Figure 5.4). The line to the auxiliary tank must not be installed in the bottom of the tank, but must be installed as high as possible to prevent water from entering the line.

Install the line as high as possible, NOT on the bottom of the auxiliary tank

VR Tank

One-way check valve Auxiliary Tank

Figure 5.4

!


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Accessory Products from VMAC The following accessory products for your VR compressor system are available from VMAC. For more information or to order these products, call 1-800-738-8622.

Eliminator Aftercooler Removes up to 80% of moisture from compressed air. Quick installation, automatic drain and compact design

Filter Regulator Lubricator Removes lubricants, water and dirt from the air stream. Adds atomized tool oil to lubricate tools. Reduces pressure for longer tool life.

Hose Reel Secure, compact, retractable hose storage in a sturdy reel.

Air Receiver Tank Thirty-five gallon capacity in a compact tank, complete with fittings and a gauge.

DE-ICING HEATER

De-icer Kit Insulated rope heater prevents freezing of lines and regulator.

Service Kits Using OEM service products will extend the life of your system. Includes oil, filters, seals and O-rings. 200 hour and 400 hour service interval kits are available

installation manual for vmac systems v900088 · 2007 freightliner m2 7.2l caterpillar c7 acert...

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