Filter
Top Products
15 - ENG D23269
Motor Pulley/Flywheel Alignment
NOTE: Once the motor pulley has been moved from its factory set location, the
grooves of the flywheel and pulley must be aligned to within 1/16" to prevent
excessive belt wear.
The air compressor flywheel and motor pulley must be in-line (in the same plane)
within 1/16" to assure belt retention within flywheel belt grooves. To check align-
ment, perform the following steps:
1. Unplug air compressor from power source.
2. Remove belt guard
3. Place a straightedge against the outside
of the flywheel and the motor drive pulley.
4. Measure the distance between the edge
of the belt and the straightedge at points
A1 and A2 in figure. The difference
between measurements should be no
more than 1/16".
5. If the difference is greater or less than 1/16" loosen the set screw holding the
motor drive pulley to the shaft and adjust the pulley’s position on the shaft until
the A1 and A2 measurements are within 1/16" of each other.
6. Tighten the motor drive pulley set screw to 70-80 in.-lbs.
7. Visually inspect the motor drive pulley to verify that it is perpendicular to the
drive motor shaft. Points B1 and B2 of Figure should appear to be equal. If
they are not, loosen the setscrew of the motor drive pulley and equalize B1 and
B2, using care not to disturb the belt alignment performed in step 2.
8. Retighten the motor drive pulley setscrew to 70-80 in.-lbs.
9. Reinstall belt guard.
A dirty air filter will not allow the compressor pump to operate at full capacity.
Before you use the compressor pump, check the air filter to be sure it is clean and
in place.
If it is dirty, replace it with a new filter. On some models,the filter may be removed
by using a pair of needle nose pliers or a screwdriver. Pull or pry out the old filter
and carefully clean the filter area. Push in the new air filter.
Air Compressor Pump Intake and Exhaust Valves
Once a year have a Trained Service Technician check the air compressor
pump intake and exhaust valves.
Inspect Air Lines and Fittings for Leaks
1. Turn the air compressor on to inspect for air leaks.
2. Apply a soap solution to all air line fittings and connections/piping.
3. Correct any leaks found.
IMPORTANT: Even minor leaks can cause the air compressor to overwork, resulting
in premature breakdown or inadequate performance.