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

Step 12) On watercooled units, open the water valve to fill the cooling
system, Check for leaks.
If a manual water valve is used, adjust the valve to maintain an adequate
flow of water.
If a water temperature regulator valve is used, install a small bypass orifice
in front of the regulator valve to allow heated water to circulate around the
temperature sensing bulb at all times.
Step 13) After all the above conditions have been satisfied, the unit can be
connected to the proper power source.
Step 14) Jog the starter switch to check the rotational direction of the
compressor. It should agree with the rotation arrow embossed on
the compressor sheave,
. .
Step 15) Check for proper rotation of the cylinder cooling fan (fins inside
sheave). The fan should blow cooling air across the cylinder.
Initial Starting & Operating
This instruction manual, as well as any instructions supplied by manufactur-
ers of supporting equipment, should be read and understood prior to starting
the compressor. If there are any questions regarding any part of the instruc-
tions, please call your local Quincy Distributor, or the Quincy Compressor
factory.
With the pre-starting checklist completed and satisfied, start the compres-
sor. Watch and listen for excessive vibration and strange noises. If either exist,
stop the compressor. Refer to SECTION 6,
Troubleshooting
for help in
i%X 1068
Fig. 4-1
Oil Pressure Adjustment
determining the cause of such problems.
If you are starting a pressure lubricated model, check the oil pressure.
Compressors producing up to 250 p.s.i.g. of discharge air pressure should
maintain 18 to 20 p.s.i.g. of oil pressure. High pressure rated compressors
producing more than 250 p.s.i.g. of discharge air pressure should maintain
22 to 25 p.s.i.g. 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 turning the adjusting screw counterclockwise. After adjust-
ment tighten the locknut.
Check the air receiver pressure gauge or system pressure gauges for
proper readings. If inadequate or excessive air pressure conditions exist, refer
to Section 6 Troubleshooting.
Observe compressor operation closely for the first hour of operation 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
QR-25 Series QUINCY COMPRESSOR
52201-104
16 February 1994