Product Manual

QT/QTS Series Quincy Compressor

50161-108, January 2013 33 3501 Wismann Lane, Quincy Ill. - 62305-3116

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.

Initial Starting & Operating

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 compres-

sor. Watch and listen for excessive vibration and strange noises. If either ex-

ist, stop the compressor. Refer to SECTION 6, Troubleshooting for help in

determining the cause of such prob lems.

Check the air receiver pressure gauge or system pressure gauge for proper

readings. If inadequate or excessive air pressure conditions 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 oper-

ate 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 compressor after the compres-

sor 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.

Quincy Compressor recommends that a new or rebuilt reciprocating compres-

sor should be run for a total of 100 hours at full discharge operating pressure

to break-in the new piston rings. Until the rings are seated, the compressor

will discharge higher than normal amounts of lubricant. In light of this fact,

the lubricant level should be checked more frequently during the 100 hour

break-in period.

Daily Starting Checklist

Do not proceed until the Pre-starting Checklist and Initial Starting &

Operating sub-sections have been read and are thor oughly understood.

CAUTION !