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PAGE 17
Figure 8. Checking Belt Tension
On compressors equipped with standard V-belts,
each belt should deflect 1/4” at the midway point
between the engine pulley and flywheel when a
downward force of 4 pounds, or equivalent finger
pressure, is applied at the midway point. Refer to
Figure 8.
4. Hold the belt tension until the engine mount-
ing hardware can be tightened.
5. Ensure that the belts are centered on the
engine pulley and compressor flywheel.
NOTE
Once the engine has been moved
from its factory set location the engine
pulley must align to within 1/16 inch
to the compressor flywheel.
6. Torque engine mounting bolts to 20
+3
foot pounds.
7. Reinstall the belt guard.
8. Connect the spark plug wire.
SERVICE INSTRUCTIONS
Moving parts, unexpected engine start-up and compressed air can cause serious injury.
Always disconnect the spark plug wire and relieve pressure from the air tank before
performing any of these service procedures. Never operate the air compressor with the
belt guard removed.
REPLACING DRIVE BELT
The gasoline engine is mounted to the tank assem-
bly saddle. By loosening engine mounting hardware,
the engine can be moved to allow for easy removal
of the belt. Replace the drive belt as follows:
1. Disconnect the spark plug wire and drain all air
pressure from the tank.
2. Remove the belt guard.
3. Loosen the engine mounting hardware and
slide the engine toward the compressor.
4. Remove the belt and replace with a new one.
On compressor outfits with matched V-
belts, both belts must be replaced at the same
time.
NOTE
The belts should be centered on
the flywheel and engine pulley. Once
the engine has been moved from its
factory set location, the engine
pulley must align to within 1/16
inch of the flywheel.