Initial Starting & Operating - Quincy Compressor QR-25 Series Instruction Manual

Initial Starting & Operating
CAUTION !
Fig. 4-1
Oil Pressure Adjustment
QR-25 Series
52201-107, December 2012
Step 13) Jog the starter switch to check the rotational direction of the
compressor.It should agree with the rotation arrow em bossed on
the compressor sheave.
Step 14)
Check for proper rotation of the cylinder cooling fan (fins inside
sheave). The fan should blow cooling air across the cylinder.
This instruction manual, as well as any instructions supplied by manufacturers
of supporting equipment, should be read and un derstood prior to starting the
compressor. If there are any questions regarding any part of the instructions,
please call your local Quincy distributor, or the Quincy Compressor factory.
When using battery cables to start engine driven units do not use
more than a total of 40 ft. of #4 gauge cable (GND & HOT).
With the pre-starting checklist completed and satisfied, start the compressor.
Watch and listen for excessive vibration and strange noises. If either exist,
stop the compressor. Refer to SECTION 6, Troubleshooting for help in
determining the cause of such prob lems.
If you are starting a pressure lubricated model, check the oil pressure.
Compressors producing up to 250 PSIG of discharge air pressure should
maintain 18 to 20 PSIG of oil pressure. High pressure rated compressors
producing more than 250 PSIG of discharge air pressure should maintain 22
to 25 PSIG of oil pressure.
Normally the oil pressure does not need to be adjusted. But if it does, loosen
the locknut on the adjustment screw located on the left side of the oil pump
housing (see Fig. 4-1, Oil Pressure Adjustment). Increase the oil pressure by
turning the adjustment screw clockwise; decrease the oil pressure by turn ing
the adjusting screw counterclockwise. After adjustment tighten the locknut.
Check the air receiver pressure gauge or system pressure gauges for
proper readings. If inadequate or excessive air pressure condi tions exist,
refer to Section 6 Troubleshooting.
Heat created during the initial startup of a new compressor will cause
slight expansion of the head(s). This slight expansion crushes the head
gasket ever so slightly and affects the torque value of the cylinder fasteners
(capscrews). To ensure optimal performance, Quincy recommends that you
initially operate the compressor for at least one hour. Shut the compressor
off and follow precautions outlined in SECTION 5, Stopping for
Maintenance. Retorque the cylinder to head capscrews to the specifications
outlined in the parts book corresponding to the Record of Change for your
Pix 1068
compressor after the compressor has cooled.
Observe compressor operation closely for the first hour of opera tion and
then frequently for the next seven hours. After the first eight hours, monitor
the compressor at least once every eight hours. If any abnormal conditions
are witnessed, stop the compressor and correct the problem. After two days of
operation check belt tension, lubricant level, and inspect the system for leaks.
23 3501 Wismann Lane, Quincy IL - 62305-3116
Quincy Compressor