Instruction manual

QR-25 Series Quincy Compressor
52201-107, December 2012 25 3501 Wismann Lane, Quincy IL - 62305-3116
Quin-Cip lubricant has proven under extensive testing to min imize friction
and wear, limit lubricant carryover, and reduce carbon and varnish deposits.
It will support the performance characteristics and life designed into all
Quincy compressors and is highly rec ommended. Refer to the charts below to
determine the correct amount of lubricant and viscosity to use for your model
and applica tion.
Approximate Crankcase Lubricant Capacities
Models Lubricant Capacity
210 20 oz. (591 ml.)
*216, *240, *310 & *325 1qt. & 16 oz. (1.42 lit.)
*270, *340, *350 & *370 4 qts. & 24 oz. (4.5 lit.)
*390 9 qts. & 16 oz. (9 lit.)
*4125 & *5120 9 qts. & 24 oz. (9.22 lit.)
*These models may be equipped with oil filters. Add 10 oz. (296 ml.) of lubricant if so equipped.
Lubricant Specifications
(Use Quin-Cip lubricant.)
Ambient Temperature SAE Viscosity ISO Viscosity
Below 0°F SAE 5W ISO 22
0-32° F SAE 10W ISO 32
32-80°F SAE 20W ISO 68
60-104°F SAE 30 ISO 100
The lubricant selected must have a pour point at least 15°F lower
than the minimum expected ambient temperature .
Pulley / Sheave Alignment & Belt Tension
Improper pulley/sheave alignment and belt tension are causes for mo tor
overloading, excessive vibration, and premature belt and/or bearing failure.
To prevent this from happening, check the pulley/sheave alignment and belt
tension on a regular basis (refer to SECTION 5, Maintenance Schedule).
Periodically inspect the motor pulley(s) and compressor sheave(s) for oil,
grease, nicks or burrs. Clean or replace if necessary. Make sure they are securely
fastened. Align the compressor sheave with the motor or engine pulley. Drive
belt grooves of the pulley(s) and sheave(s) should be in line with each other.
The compressor crankshaft must be parallel to the motor or engine drive shaft.
Belt tension should be measured and adjusted to provide smooth op eration.
Step-by-step procedures are provided here to correctly measure and set the
drive belt tension:
Step 1) Measure the span length of the drive. (Refer to Fig. 5-1, Setting
Belt Tension.)
CAUTION !