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Model G0471 3 HP Air Compressor
-24-
Changing V-Belt
Make sure the V-belt is properly
tensioned. If the V-belt is too tight,
the motor could overheat and cause
machine damage or fire. If the V-belt
is too loose, the belt will slip on the
pulley and cause belt damage and
compressor inefficiency.
Figure 21. Belt guard mounting bolts.
Figure 22. Motor mounting bolts.
Figure 23. V-belt deflection.
To change the V-belt drive on your air
compressor:
1. Remove the belt guard. The guard is
attached to the compressor frame by
the mounting bolts shown in Figure
21.
2. Loosen the four nuts (one side shown
in Figure 22) that secure the motor to
the compressor frame so the motor can
slide towards crankcase, relieving the
tension on the V-belt.
3. Remove the V-belt from the motor pul-
ley and fly pulley.
4. Install the new V-belt.
5. Reposition the motor to tension the belt
and secure the mounting bolts loos-
ened in step 2.
Note: A properly tensioned V-belt will
have about a ½" deflection as shown in
Figure 23.
½" of Deflection
6. Replace belt guard.