Quincy Compressor X3

Measure the span length of the drive (in inches)

Calculate the required deflection (in inches)

Lay a straightedge across the top outer surface of the drive belt from pulley to sheave

Apply pressure with a belt tension gauge and record the deflection force reading

Is the deflection force reading within the minimum and maximum values?

Adjust the belt(s) if necessary

For new belts, was the tension initially set to the maximum value plus 33%?

Measure Span Length and Determine Deflection

Measure the span length of the drive (in inches)

Calculate the required deflection (in inches) by multiplying the span length by 0.016

Measure and Adjust Belt Tension

Lay a straightedge across the top outer surface of the drive belt from pulley to sheave

Apply pressure with a belt tension gauge at the center of the span and record the deflection force reading

Is the deflection force reading within the minimum and maximum values?

Adjust the belt(s) if the deflection force reading is not within the specified range

For new belts, tension to the maximum value plus 33%

Change oil if 1000 hours or 6 months have passed, whichever occurs first

Was the oil changed more frequently due to harsher conditions?

Inspect compressor valves for leakage

Inspect compressor valves for carbon build-up

Crankcase and Oil Sump Maintenance

Clean oil sump strainer screen inside the crankcase with a safety solvent

Ensure the compressor is disconnected from the power supply

Verify that all safety precautions from SECTION 5, Stopping For Maintenance, are followed

Remove the pressure switch cover

Record the current air pressure reading

Adjust the spring loaded adjustment screw

Record the new air pressure reading

Manually operate the pressure relief valves to ensure they are working

Clean the cooling surfaces of the intercooler

Clean the cooling surfaces of the compressor

Check the compressor for air leaks

Check the compressed air distribution system for leaks