Standard Operating Procedure for Air Compressor For Laundry and Sewage Treatment Plant

SOP Number: Hotel Engineering SOP  – 08

Department: Engineering and Maintenance

Date Issued: 17–Feb-2018

Time to Train: 30 Minutes

Air Compressor Maintenance Checklist and Procedure:

Required Tools:

• Plier.

• Screw Driver.

• Clamp meter.

• Line Tester.

• Megger.

• Crimping tool.

• Grease gun.

• Oil cane.

• Air Blower.

• Brush.

• Spanner Set.

Consumable Parts:

• PVC Tape.

• Old clothes.

• Carbon removing compound.

• WD-40.

• Oil & Grease.

Air Compressor For Laundry Maintenance Activity:

1) Electrical control:

• The motor should be of 7.5 BHP.

• Contactors - Burnt contact, loose electrical connection and operation to be checked.

• Overload relay - Operation of the relay, setting and loose electrical connections.

• Loose electrical connection - to be checked.

• MCCB - Loose & burnt electrical connection and rating of MCCB to be checked.

• Proper Thimbling - burnt connections and thimbles to be checked.

• Terminal Plate - burnt and broken plate to checked.

b) Bearing:

Check the oiling, greasing and change if it is noisy.

c) Check Internal Resistance Value.

d) Air Compressor:

• Filter Cleaning - Any sand/dust to be cleaned.

• Air pressure setting in pressure gauge to be done

e) Other Items to Check:

• Check and verify if the full load is at 11 Amp.

• Overload Setting should be at 13Amp.

• Over Load Relay range should be between 9-15 Amp.

• Contractor Rating should be between ML-1 and 16 Amp.

• Control Fuse Rating should be at 4 Amp.

• MCCB rating should be 40 Amp.

Air Compressor For Sewage Treatment Plant Maintenance Activity:

a) Electrical control:

• The motor should be of 3 Hp.

• Contactors - Burnt contact, loose electrical connection and operation to be checked.

• Over Load relay - Operation of the relay, setting and loose electrical connections.

• Lose electrical connection - to be checked.

• MCB - Loose & burnt electrical connection and rating of MCB to be checked.

b) Bearing:

Check the oiling, greasing and change if it is noisy.

c) Check Internal Resistance Value.

d) Air Compressor:

• Filter Cleaning - Any sand/dust to be cleaned.

• Air pressure setting in pressure gauge to be done

e) Other Items to Check:

• Check and verify if the full load is at 5 Amp.

• Over Load Setting should be at 6 Amp.

• Over Load Relay range should be between 4.5-7.5 Amp.

• Contractor Rating should be between ML-0 and 12 Amp.

• Control Fuse Rating should be at 4 Amp.

• MCCB rating should be 32 Amp.

Remarks by the Technician:

Date:

Signature: