introduction - oil india...1. check the prv and remove the mounting studs. 2. close all pneumatic...

SITE SPECIFIC SAFE OPERATING PROCEDURE INSTRUMENTATION, LPG DEPERTMENT

Moderated on 27th

March, 2015

INTRODUCTION

Instrumentation Section of LPG Department is mainly responsible for planning, coordination and

execution of Preventive and breakdown maintenance schedule of Instruments and control

systems of recovery and filling plant and ensures timely completion of jobs at LPG Recovery and

Filling Plant. The instrumentation system of LPG Recovery&Filling plant includes:

1. Gauges: Pressure, Temperature, Level

2. Pneumatic Level Controller

3. Smart Transmitters: Pressure, Temperature, Level

4. Mass flow meters

5. HC Gas Detectors

6. Ultrasonic Flow meters

7. I/P Positioners

8. Digital Valve Controllers

9. Tank Farm Field Instruments

10. Expander PLC

11. Dehydrator PLC

12. Gas Chromatograph

13. Burner Management System

14. ABB PLC

15. PLC

16. MB TFM

17. 24 Point Electronic Filling Machine

18. GD Unit/PT Unit of Kosan Crips plant

19. Weighing Bridge

20. Tanker Filling System, etc.

CONTENTS:

CHAPTER 1: ACTIVITIES OF INSTRUMENTATION SECTION

CHAPTER 2: HAZARDS & GENERAL SAFETY PRECAUTION FOR MAINTENANCE JOBS.

CHAPTER 3: SOP OF CALIBRATION OF GAS DETECTOR

CHAPTER 4: SOP OF CALIBRATION OF LEVEL TRANSMITTER

CHAPTER 5: SOP FOR CALIBRATION OF PRESSURE SWITCH

CHAPTER 6: SOP FOR CALIBRATION OF PRESSURE TRANSMITTER.

CHAPTER 7: SOP FORCALIBRATION OF PRV.

CHAPTER 8: SOP FOR CALIBRATION OF TEMP TRANSMITTER.

CHAPTER 9: SOP FOR CALIBRATION OF TEMP. SWITCH.

CHAPTER 10: SOP FOR CHECKING OF FIELD INSTRUMENTS CONTROL PANEL.

CHAPTER 11: SOP FOR ERECTION AND INSTALLATION OF INSTRUMENT.

CHAPTER 12: SOP FOR MAINTENANCE OF CONTROL VALVES AND POSITIONER

CHAPTER 13: SOP FORMAINTENANCE OF DCS.

CHAPTER 14: SOP FORMAINTENANCE OF DYNAMIC CHECK SCALE AND PRE-CHECK

SCALE.

CHAPTER 15: SOP FOR MAINTENANCE OF EJECTION UNIT

CHAPTER 16: SOP FOR MAINTENANCE OF ELECTRONIC FILLING MACHINE

CHAPTER 17: SOP FOR MAINTENANCE OF GAS CHROMATOGRAPH.

CHAPTER 18: SOP FOR MAINTENANCE OF GD UNIT.

CHAPTER 19: SOP FOR MAINTENANCE OF PLC.

CHAPTER 20: MAINTENANCE OF PT UNIT.

CHAPTER 21: SOP FOR MAINTENANCE OF TANKER LOADING SYSTEM

CHAPTER 22: SOP FOR MAINTENANCE OF WT. CORRECTION UN IT

CHAPTER –I

ACTIVITIES OF INSTRUMENTATION SECTION

Instrumentation section is an integral part of LPG department of Oil India Limited.

It is responsible for

Smooth and trouble free functioning of all the Instrumentation and control systems associated with recovery and Filling plants.

Installation and commissioning of any new equipment / instrument in recovery and Filling plant.

Implementation of safety related instrument as and when recommended by OISD.

Execution of various instrumentation related contract jobs under the department.

Planning & execution of day to day and annual maintenance jobs related to Instrumentation & control system.

Planning, budgeting and procurement of instrument item.

Spare parts management for maintenance of instrumentation & control system of recovery & filling plant.

Following are the objectives of the Instrument section:

Ensuing smooth running of the plant and equipment safely.

To maintain various Instrument and control system of both the plants.

To facilitate the operators / engineers for easy and safe handling of equipment.

To keep good relation and understanding with other sections of the department.

To keep good relation and understanding with other departments of the Company.

To keep good relation with the suppliers and contractors.

CHAPTER –II

GENERAL SAFETY PRECAUTION FOR INSTRUMENTATION SECTION

2.01 Toolbox Meeting must be done every day after job allocation / before

starting of job.

2.02 Special PPEs relevant to the specific job must be used while doing the job.

Safety shoes must be used all the times.

2.03 Inspect each tool for damage before use. Get instruction from Supervisor, if you are unfamiliar with a tool.

2.04 Keep all tools clean. Keep the tools at their proper storage location.

2.05 Un-authorized persons should not be allowed in the working area.

2.06 Outsiders / Trainees / Visitors should be always under supervision.

CHAPTER- III

SOP OF ON SITE CALIBRATION OF GAS DETECTOR (GD).

GENERAL OPERATIONS

ACTIVITY ON SITE CALIBRATION OF GAS DETECTOR (GD).

HAZARDS Electric shocks, Headache, Skin problem,respiration problem.

PPEs Safety Shoes, Wrist band, hand gloves, Dungaree, helmet.

PREPARATION i) Wear Dungaree helmets, and hand gloves before starting the jobs.

ii) Keep ready quickDry cleaning agents, Proper tools and equipment.

iii) Standard Digital Multi meter and Digital Calibrator and Pressure

Calibrator.

iv) Standard sample gas, Nozzle for sample gas, Small hair brushfor

CleaningPurposes,Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check the Gas detector physically and the cable gland.

2. Connect Multimeter in serieswith power supply of the Gas detector

to measure Milliamps.

3. Check any leakage voltage with Digital Multimeter.

4. Clean the Gas detector with dry cloth.

5. Use small hand brush to clean inside the cover.

6. Check powersupply tothe GD.

7. Carefully spray sample gas to GD.

8. Check 0% and 100% as per range (20% Lower Explosive Limit).

9. Check alarm condition in Control room.

10. Remove Multimeter from the Gas Detector and connect to its

Original position after calibration.

CHAPTER- IV

SOP OF CALIBRATION of Level Transmitter (LT).

GENERAL OPERATIONS

ACTIVITY CALIBRATION of Level Transmitter (LT).

HAZARDS Electric shocks, Headache, Skin problem, Heat Radiation, Noise.


PREPARATION i) Wear Dungaree, helmets, and hand gloves before starting the jobs.

ii) Remove and isolate power supply of the LT. Keep ready quick

Dry cleaning agents, Proper tools and equipment.

iii) Standard Digital Multi meter and Digital Calibrator and Pressure Calibrator.

iv) Small hair brush for cleaning Purposes. Proper range of Fuse.

Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check the LT physically and the cable gland.

2. Isolate all power supply to the LT or switch OFF or remove fuse

3. Loosen the mounting cover.

4. Check any leakage voltage with Digital Multimeter.

5. Clean the LT with cleaning agent.

6. Use small hand brush to clean contacts and screws.

7. Check proper supply Voltage to LT with Multi meter

8. Carefully connect the digital calibrator to the LT.

9. Use pressure calibrator to generate required pressure.

10. Check 0%, 25%, 50%, 75%, 100% as per range of the LT.

11. Use dry cotton cloth to rub.

12. Close with cover after calibration of LT

13. Switch ON power supply and check the LT.

CHAPTER- V

SOP OF CALIBRATION OF PRESSURE SWITCH (PS).

GENERAL OPERATIONS

ACTIVITY CALIBRATION of Pressure Switch (PS).




ii) Remove and isolate power supply of the P.S. Keep ready quick


iii) Standard Digital Multi meter and Digital Pressure Calibrator.

iv) Small hand hair brush for cleaning Purposes.

v) Proper range of Fuse. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check the PS physically and the cable gland.

2. Isolate all power supply to the PS or switch OFF or remove fuse


4. Check any leakage voltage with Digital Multi meter.

5. Clean the PS with cleaning agent


7. Check proper supply Voltage to PS with Multi meter

8. Carefully connect the digital calibrator to the PS.


10. Check ON/OFF (NO/NC) as per range of the PS.


12. Close with cover after calibration of PS

13. Switch ON power supply and check the PS.

CHAPTER- VI

SOP OF CALIBRATION OF PRESSURE TRANSMITTER (PT).

GENERAL OPERATIONS

ACTIVITY CALIBRATION of Pressure Transmitter(PT)




ii) Remove and isolate power supply of the PT. Keep ready quick

iii) Dry cleaning agents, Proper tools and equipment’s.

iv) Standard Digital Multi meter and Digital Calibrator and Pressure

Calibrator. Small hair brush for cleaning Purposes.

v) Proper range of Fuse. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check the PT physically and the cable gland.

2. Isolate all power supply to the PT or switch OFF or remove

Fuse.


4. Check any leakage voltage with Digital multi meter.

5. Clean the PT with cleaning agent.


7. Check proper supply Voltage to PT with Multi meter

8. Carefully connect the digital calibrator to the PT.


10. Check 0%, 25%, 50%, 75%, 100% as per range of the PT.


12. Close with cover after calibration of PT

13. Switch ON power supply and check the PT.

CHAPTER- VII

SOP OF CALIBRATION OF PRE ROTATION VANE (PRV).

GENERAL OPERATIONS

ACTIVITY CALIBRATION of Pre Rotation Vane (PRV).

HAZARDS Cramp, fall, back injury, slip, Noise.

PPEs Safety Shoes, hand gloves, Dungaree, helmet.


ii) Remove and isolate all mounting studs, Dry cleaning agents,

iii) Proper tools and equipment, Digital Pressure Calibrator, pressure

Gauge, standard pressure regulator, Air Hose, Dry Compressed air.

iv) Dry cotton clothes, proper SS straight connector, and manometer.

STEP BY STEP

PROCEDURE

1. Check the PRV and remove the mounting studs.

2. Close all pneumatic connections of PRV and dismantle.

3. Hold the PRV carefully and bring it to Workshop for calibration.

4. Remove the actuator parts for cleaning.

5. Replace all damaged O-Rings with new ones.

6. Clean the PRV parts with proper cleaning agent

7. Use small hand brush to clean sensitive parts.

8. Assemble the PRV parts as it is.

9. Give air supply to the PRV through regulator.

10. Give signal in PSI and measure the movement of the

Stem in mm.

11. Use proper Scale to measure the length of the piston stem.

12. Check 0%, 25%, 50%, 75%, 100% movement of stem as per

Supply air pressure in PSI

13. Use dry cotton cloth to rub and clean the PRV.

14. Assemble the PRV and fit back in Inlet compressor.

CHAPTER- VIII

SOP FORCALIBRATION OF TEMPERATURE TRANSMITTER

(TT).

GENERAL OPERATIONS

ACTIVITY CALIBRATION of Temperature Transmitter (TT).

HAZARDS Electric shocks, Headache, Skin problem, Heat Radiation, Noise

PPEs Safety Shoes, Wrist band, hand gloves, Dungaree, helmet,


ii) Remove and isolate power supply of the TT.

iii) Keep ready quick Dry cleaning agents, Proper tools and equipments.

iv) Standard Digital Multi meter and Digital Calibrator.

v) Small hand hair brush for cleaning Purposes. Proper range of Fuse,

Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check the TT physically and the cable gland.

2. Isolate all power supply to the TT or switch OFF or remove

Fuse.



5. Clean the TT with cleaning agent


7. Check proper supply Voltage to TT with Multi meter

8. Carefully connect the digital calibrator to the TT.

9. Select type of primary sensor such as RTD, thermocouple.

10. Check 0%, 25%, 50%, 75%, and 100% as per range of the TT.


12. Close with cover after calibration of TT

13. Switch ON power supply and check the TT.

CHAPTER- IX

SOP FORCALIBRATION OF TEMPERATURE SWITCH (TS).

GENERAL OPERATIONS

ACTIVITY CALIBRATION of Temperature Switch (TS).




ii) Remove and isolate power supply of the T.S. Keep ready quick


iii) Standard Digital Multi meter and Digital Temperature Calibrator.

iv) Small hand hair brush for cleaning Purposes. Proper range of Fuse.

v) Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check the TT physically and the cable gland.

2. Isolate all power supply to the Temperature Switch.



5. Clean the Temp. Switch with cleaning agent


7. Remove Temp. Switch and bring to Workshop for calibration

8. Carefully insert the Temp Switch to the calibration unit.

9. Use Multi meter to get the contact condition.

10. Check ON/OFF (NO/NC) of the Temp Switch at required Temp.


12. Close the cover after calibration of Temp Switch

13. Fitted back the temp switch in its position.

14. Check the thermo well of its tightness.

CHAPTER- X

SOP FORCHECKING OF FIELD INSTRUMENTS, FIELD CONTROL

PANELS, RECORDING OF PLANT PARAMETERS

GENERAL OPERATIONS

ACTIVITY Checking of field instruments, field control panels, recording of plant

parameters

HAZARDS Falling, Slips, Headache, Skin problem, Heat Radiation, Noise,

electric shocks



ii) Keep ready quick Dry cleaning agents, Proper tools and equipment.

Standard Digital Multi meter and Vacuum Pump.

iii) Small hand hair brush for cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check normal process variables of field instruments

2. Isolate all power supply to the field Panels.


4. Clean panel and cabinet with vacuum pump.

5. Use small hand brush to clean nuke and corner.


7. Check all panel instrument physically and rectify problem if found.

8. Use envelopes of conductive plastic for taking optimum

Protection in case of Electronic Items.

9. Take care of circuit board while removing particularly MOS/ CMOS

Components. Read and note down the warning label

Of the circuit boards.

10. Store all cards in proper envelopes and proper place with

Utmost care.

11. Avoid metallic surface for handling cards

12. Calibrate field Instruments as per calibration procedure.

CHAPTER- XI

SOP FORERECTION AND INSTALLATION OF INSTRUMENT.

GENERAL OPERATIONS

ACTIVITY ERECTION AND INSTALLATION OF INSTRUMENT.

HAZARDS Headache, Skin problem, Noise, Cool burn, slips, back injury.




iii) Standard Digital Multi meter and Vacuum Pump. Small hand hair

brush for cleaning Purposes. Dry cotton clothes.

iv) Take permission for Hot/Cold job as per OISD.

v) Isolate Power supply.

STEP BY STEP

PROCEDURE

1. Check the instrument physically before installation.

2. Keep ready all required tools and equipment.

3. Check and remove any hazardous materials.

4. Take permission from authorized person of the installation.

5. Clean the area so that all will be comfortable for work.

6. Take clearance from other sections if needed.

7. Installation to be done as per OEM instruction.

8. Use all protective equipment and tools during installation.

9. Inform authorized person after erection and installation of the

instrument.

10. Test and trial run of the instrument before giving online.

CHAPTER- XII

SOP FORMAINTENANCE OF CONTROL VALVES AND

POSITIONERS.

GENERAL OPERATIONS

ACTIVITY Maintenance of CONTROL VALVES AND POSITIONERS.

HAZARDS Electric shocks, Headache, Skin problem, Heat Radiation, Noise, Falling, slips




iii) Standard Digital Multi meter. Small hand brush for cleaning Purposes.

Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check control valves and positioner physically

2. Clean control valves and positioner with cleaning agent. .

3. Check air supply and maintain pressure at 35 PSI in the positioner.

4. Clean flapper –Nozzle assembly with cleaning agent.

5. Use small hand brush to clean flapper - nozzle

6. Check diaphragm of the control Valves

7. Check output of the I/P converter ( 3 psi to 15 psi )

8. Maintain and regulate 20 psi in the I/P converter

9. Observe opening /closing of control valves as per signal from the

controller

10. Adjust stem of the valve if required

11. Check for any leakage after calibration of the valve.

CHAPTER- XIII

SOP OF MAINTENANCE OF DISTRIBUTED CONTROL

SYSTEM(DCS) AC460/ FRONTEND 800XA.

GENERAL OPERATIONS

ACTIVITY Maintenance of Distributed Control System(DCS) AC460/ FRONTEND

800xA.




ii) Remove and isolate power supply of the DCS.

iii) Keep ready quick Dry cleaning agents, Proper tools and Equipment.

iii) Standard Digital Multi meter and Vacuum Pump. Small hand

Hair brush for cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Take total backup of the Program

2. Isolate all power supply to the DCS or switch OFF power supply.

3. Put on panel ground wristband before touching the cabinet.

4. Loosen all mounting screws with screw Driver.


6. Clean card and cabinet with vacuum pump

7. Use small hand brush to clean contacts


9. Check all cards and cabinet physically and rectify problem if found.

10. Carefully handle the cards


Protection

12. Take care of circuit board while removing particularly MOS/ CMOS

Components. Read and note down the warning labelof the circuit

Boards.

13. Store all cards in proper envelopes and proper place with utmost care.


15. Use antistatic table for DCS works.

CHAPTER- XIV

SOP FORMAINTENANCE OF DYNAMIC CHECK SCALE AND PRE-

CHECK SCALE.

GENERAL OPERATIONS

ACTIVITY Maintenance of Dynamic check scale and pre-check scale.





iii) Standard Digital Multi meter and Vacuum Pump. Small hand hair brush

for cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check dynamic and pre-check scale physically.

2. Check Crisplant Universal Controller(CUC) and its Programs and

Supply voltage.

3. Check air pressure to the machine.

4. Check all air supply tubes of the machines.

5. Check bearings and chain.

6. Clean base plate and machines

7. Use small hand brush to clean CUC.


9. Carefully handle the cards and CUC if removed.

10. Replace all damaged bearings of the machines

11. Check the tightness of chain of Dynamic check scale

12. Take care of circuit board while removing Electronic Components.

13. Read and note down the warning label of the circuit boards.



16. Use new bushing for balancing of the machine.

17. Calibrate the machines with Standard weight of 20 kg, 10kg.

CHAPTER- XV

SOP FORMAINTENANCE OF EJECTION UNIT.

GENERAL OPERATIONS

ACTIVITY Maintenance of EJECTION UNIT.

HAZARDS Headache, Skin problem, Noise, Cool burn, slips, back injury

Impact, thrust.



ii) Keep ready quick Dry cleaning agents, Proper tools and

Equipment.

iii) Standard Digital Multi meter and Vacuum Pump. Small hand

Hair brush for cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check Ejection unit physically.

2. Check pneumatic cylinder and vent ports.

3. Check the piston rod of the unit

4. Check air pressure to the Unit.

5. Check all air supply tubes and pulling arm of the unit.

6. Check machines and conveyor alignment.


8. Carefully handle the pneumatic cylinder when dismantling.

9. Replace all damaged O-ring and piston O-rings in maintenance

CHAPTER- XVI

SOP FOR MAINTENANCE OF ELECTRONIC FILLING MACHINE.

GENERAL OPERATIONS

ACTIVITY Maintenance of ELECTRONIC FILLING MACHINE.




ii) Keep ready quick Dry cleaning agents, Proper non sparking tools.

iii) Standard Digital Multi meter and Vacuum Pump. Small hand brush

For cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check all filling Machines physically.

2. Check all Crisplant Universal Controller (CUC) and its Programs.


4. Check all air supply tubes and LPG hoses of the machines.

5. Check filling head and its pin.

6. Check Tightness of hose pipe connector.

7. Balancing at the base plates of the filling machine too bechecked.

8. Clean base plate and machines



11. Carefully handle the cards and CUC

12. Replace all damaged O-ring of the moving/running equipments

13. Use envelopes of conductive plastic for taking optimum protection.



16. Store all cards in proper envelopes and proper place with Utmost care.




CHAPTER- XVII

SOP FOR MAINTENANCE OF GAS CHROMATOGRAPH (GC).

GENERAL OPERATIONS

ACTIVITY Maintenance of Gas Chromatograph (GC).





iii) Standard Digital Multi meter and Vacuum Pump.

iv) Small hand hair brush for cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check online sample lines

2. Check pressure of Carrier gas and adjust pressure of carrier gas and

Online sample gas.

3. Maintain oven temperature at 80 degree C.

4. Check monitor’s intensity and brightness.

5. Check all valves inside oven.

6. Regulate air supply at 35-40 PSI

7. Use standard program for GC which is stored in EPROM

8. Use dry cotton cloth to rub/clean the cabinet.

9. Carefully handle the valves if removed for maintenance.

10. Take care of circuit board while removing from the enclosure.




14. Use antistatic table while handling electronics cards.

CHAPTER- XVIII

SOP FORMAINTENANCE OFGAS DETECTOR UNIT OF FILLING

PLANT (GD UNIT).

GENERAL OPERATIONS

ACTIVITY Maintenance of Gas Detector Unit of Filling Plant (GD Unit).






Brush for cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check GD UNIT physically.

2. Check Crisplant Universal Controller (CUC) and its Programs.


4. Check all air supply tubes and LPG sensing tube of the unit.

5. Check GD head and gas detector unit.

6. Clean GD sensor part of the unit

7. Use small hand brush to clean CUC and sensor parts.



10. Replace all damaged O-ring of the GD Unit


CHAPTER- XIX

SOP FORMAINTENANCE OF PROGRAMMABLE LOGIC

CONTROLLER(PLC) - 5/40 E AND PLC 5/25

GENERAL OPERATIONS

ACTIVITY Maintenance of Programmable Logic Controller(PLC) - 5/40 E and

PLC 5/25.

HAZARDS Electric shocks, Headache, Skin problem, Heat Radiation, Noise



ii) Remove and isolate power supply of the PLC. Keep ready quick Dry

Cleaning agents.

iii) Proper tools and equipment. Standard Digital Multi meter & Vacuum

Pump. Small hand hair brush for cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Take total backup of the Program

2. Isolate all power supply to the PLC or switch OFF Power Supply.

3. Put on panel ground wristband before touching the cabinet.

4. Loosen all mounting screws with screw driver.


6. Clean card and cabinet with vacuum pump.

7. Use small hand brush to clean contacts.


9. Check all cards and cabinet physically and rectify problem if found.

10. Carefully handle the cards


Protection

12. Take care of circuit board while removing particularly

MOS/ CMOS Components. Read and note down the warning

Label of the circuit boards.

13. Store all cards in proper envelopes and proper place with utmost

Care.


15. Use antistatic table for PLC works.

CHAPTER- XX

SOP FORMAINTENANCE OF PRESSURE TRANSMITTER (PT) UNIT

OF FILLING PLANT

GENERAL OPERATIONS

ACTIVITY Maintenance of Pressure Transmitter (PT) Unit of Filling Plant.






Brush for cleaning purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check PT UNIT physically.

2. Check Crisplant Universal Controller (CUC) and its Programs.


4. Check all air supply tubes.

5. Check PT head and pressure transmitter unit.

6. Clean pressure sensor part of the unit




10. Replace all damaged O-ring of the PT Unit.


CHAPTER- XXI

SOP FORMAINTENANCE OF TANKER LOADING SYSTEM.

GENERAL OPERATIONS

ACTIVITY Maintenance of TANKER LOADING SYSTEM.

HAZARDS Headache, Skin problem, Noise, Cool burn, slips, back injury, dust.



ii) Keep ready quick Dry cleaning agents, Proper non sparking tools.

iii) Standard Digital Multi meter and Vacuum Pump. Small hand brush

For cleaning Purposes.

iv) Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check tanker filling unit physically.

2. Check Danload batch loader and Micromotion Unit and its Programs.

3. Check solenoid valves of the Unit.

4. Check earthing unit of the system.

5. Check all cable gland and tubings.

6. Use password to protect the programs.

7. Use small hand brush to clean Danload and Micromotion unit.


9. Carefully handle the cards if dismantling Danload.

10. Replace defective card if needed.

11. Check Brodie control valve and maintain periodically

CHAPTER- XXII

SOP FORMAINTENANCE OF WEIGHT CORRECTION UNIT.

GENERAL OPERATIONS

ACTIVITY Maintenance of WEIGHT CORRECTION UNIT.





iii) Standard Digital Multi meter and Vacuum Pump.

iv) Small hand brush for cleaning Purposes. Dry cotton clothes.

STEP BY STEP

PROCEDURE

1. Check the Weight correction unit physically.

2. Check all Crisplant Universal Controller (CUC) and its Programs.


4. Check all air supply tubes and LPG hoses of the machines.

5. Check filling head and its pin.

6. Clean base plate, roller and machines





Protection


Read and note down the warning label of the circuit boards.





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introduction - oil india...1. check the prv and remove the mounting studs. 2. close all pneumatic...

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