Pulley / Sheave Alignment & Belt Tension - Quincy Compressor QR-25 Series Instruction Manual

CAUTION !
Pulley / Sheave Alignment & Belt Tension
QR-25 Series
52201-105, May 2003
Approximate Crankcase Lubricant Capacities
Splash Lubricated Model
X2 & X3
X8
108 & R-17*
210SLS
Pressure Lubricated Model**
206 &210
216, 240*, 310 & 325
270*, 340, 350 & 370
390
4125*, 5120 & W5120
*Includes vacuum pump versions.
**These models may be equipped with oil filters. Add 10 oz. of lubricant if so equipped.
Lubricant Specifications
(Use Quin-Cip lubricant.)
Ambient Temperature
Below 0°F
0-32° F
32-80°F
60-104°F
The lubricant selected must have a pour point at least 15° F
lower than the minimum expected ambient temperature .
Improper pulley/sheave alignment and belt tension are causes for motor
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 operation.
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.)
23
Lubricant Capacity
4 oz. (118 ml.)
10 oz. (296 ml.)
24 oz. (710 ml.)
20 oz. (591 ml.)
Lubricant Capacity
20 oz. (591 ml.)
1qt. - 16 oz. (1.42 lit.)
4 qts. - 24 oz. (4.5 lit.)
9 qts. - 16 oz. (9 lit.)
9 qts. - 24 oz. (9.22 lit.)
SAE Viscosity ISO Viscosity
SAE 5W
SAE 10W
SAE 20W
SAE 30
3501 Wismann Lane, Quincy IL - 62305-3116
ISO 22
ISO 32
ISO 68
ISO 100
Quincy Compressor