sop for Operation of Air Compressor and Air Dryer

1.0 OBJECTIVE :

1.1 To lay down a procedure for operation of Air compressor

2.0. SCOPE :

2.1 procedure is applicable to the operation of Air compressor situated at Pharma Dekho
3.0. RESPONSIBILITY :

3.1 Machine Operator shall be responsible for monitoring the operation of Air Compressor
3.2 Engineer shall be responsible for Corrective action in case of any deviation and Verifying the
Performance parameters as per acceptance criteria.

4.0. ACCOUNTABILITY :

4.1 Engineering Head shall be accountable for compliance of SOP.

5.0. PROCEDURE :

5.1 PRE -OPERATION CHECK LIST OPERATION OF AIR COMPRESSOR
5.1.1 Check the position of safety switches.
5.1.2 Drain the condensed water from Air receiver
5.1.3 Check the tightness of “V” belts.
5.1.4 Check oil level in compressor & coolant level in Air Heat exchanger.
5.1.5 Check the discharge valve is close
5.2 STARTING PROCEDURE OPERATION OF AIR COMPRESSOR
5.2.1 Unload compressor by the unloader.
5.2.2 Switch on the main switch & push green ‘START’ button of cooling tower.
5.2.3 Switch on the main switch & push green ‘START’ button of air compressor
5.2.4 Manually operate Force Feed Lubricator and check the compressor oil level through the sight glass
5.2.5 Start the motor of the compressor by using the start button, which is on the switchboard.
5.2.6 Observe that the compressor is running on unload mode for 1 -2 minutes.
5.2.7 Load the compressor.
5.2.8 Check the following during running stage
5.2.9 Check electric motor shall be over-heated.
5.2.10 Check and ensure that the auto condensate drain is working properly of receiver and after cooler.

5.2.11 Level of coolant level in indicator shall be checked.
5.2.12 Check any abnormal noise.

5.3 STARTING PROCEDURE OPERATION OF AIR DRYER:-
5.3.1 Select the Dryer for operation
5.3.2 Switch “ON” the dryer.
5.3.3 Open the inlet valve slowly.
5.3.4 Avoid any sudden variation in pressure.
5.3.5 Slowly open the upstream valve and check the circulation of air.
5.3.6 Check the inlet flow and machine utilization.
5.3.7 Check the purging and Regeneration cycle in Heatless Dryer or check given line indication in refrigerant Dryer
5.4 STOPPING PROCEDURE OPERATION OF AIR COMPRESSOR
5.4.1 Closed discharge valve.
5.4.2 Unload compressor using manual operated hand wheel on unloaders and allow compressor to run for around 5 minutes in unload mode before stopping.’
5.4.3 Switch off the power supply to the unit and observe that the compressor stops.
5.4.4 Stop the water circulation pump.
5.4.5 Record all the operations.
5.4.6 Change the inlet3/2 way valve to bypass position.
5.4.7 Leave the dryer controller in switched “ON” condition.
5.4.8 Ensure the 2 tower pressure gauge indicates 0 kg/cm2′.
5.4.9 Switch “OFF” the controller.
5.5 STOPPING PROCEDURE OF AIR DRYER:-
5.5.1 Close the inlet valve.

5.5.2 Leave the dryer controller in switched “ON” condition.
5.5.3 Ensure the pressure gauge indicates 0 kg/cm2 (in Heatless)
5.5.4 Switch “OFF” the controller.
5.5.5 Take the reading of four hour of operation of compressor and air dryer as par annexure -I.
6.0. ABBREVIATION :

Sr. No.	Abbreviation used	Full form of abbreviation used
1.	SOP	Standard operating procedure
2.	EM	Engineering & maintenance

sop for Operation of Air Compressor and Air Dryer

sop for Execution of Preventive Maintenance

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