Quincy Rotary Screw Belt Drive Air Compressor QST-20-HP-W

Lock out and tag out the electrical power supply

Remove panels and guards to gain access to belt drive area

Release tension on belts by backing off nut (2)

Remove existing belts (and discard, if replacing)

Check sheaves for nicks, wear, and misalignment before reinstalling belts

Inspect new (or used) belts for defects or damage before installation

NOTICE: Maintenance should be performed by trained and qualified technicians only.

CAUTION: Unusual noise or vibration indicates a problem. Do not operate the compressor until the source has been identified and corrected.

Wait for the unit to cool before starting service. Temperatures may exceed 180°F when the compressor is operating.

Clean up fluid spills immediately to prevent slipping.

Loosen, but do not remove, flange or component bolts. Carefully pry apart to be sure there is no residual pressure before removing bolts.

Never use a flammable solvent such as gasoline or kerosene for cleaning air filters or compressor parts.

Safety solvents are available and should be used in accordance with their instructions.

Monitor all gauges and indicators for normal operation.

NOTICE: Maintenance should be performed by trained and qualified technicians only.

CAUTION: Unusual noise or vibration indicates a problem. Do not operate the compressor until the source has been identified and corrected.

Wait for the unit to cool before starting service. Temperatures may exceed 180°F when the compressor is operating.

Clean up fluid spills immediately to prevent slipping.

Loosen, but do not remove, flange or component bolts. Carefully pry apart to be sure there is no residual pressure before removing bolts.

Never use a flammable solvent such as gasoline or kerosene for cleaning air filters or compressor parts.

Safety solvents are available and should be used in accordance with their instructions.

Check roll pin indicator position in slot and replace V-belts if at or near allowable travel.

Belt Drive Inspection Procedure

Ensure maintenance is performed by trained and qualified technicians only.

Is there any unusual noise or vibration from the compressor?

Wait for the unit to cool before starting service.

Clean up any fluid spills immediately.

Loosen, but do not remove, flange or component bolts to check for residual pressure.

Go over unit and check all bolts for tightness.

Air/Fluid Separator Replacement

Ensure maintenance is performed by trained and qualified technicians only.

Is there any unusual noise or vibration from the compressor?

Wait for the unit to cool before starting service.

Clean up any fluid spills immediately.

Loosen, but do not remove, flange or component bolts to check for residual pressure.

Use safety solvents for cleaning air filters or compressor parts.