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BELT REPLACEMENT
WARNING: This unit starts
automatically. ALWAYS shut off and
unplug the air compressor, and
bleed all pressure from the system
before servicing the air compressor,
and when the air compressor is not
in use. Do not use the unit with the
shrouds or belt guard removed.
Serious injury could occur from
contact with moving parts. Hot
surfaces. Risk of burn. Pump head,
and surrounding parts are very hot,
do not touch (see the Hot Surfaces identified in Fig. 4). Allow air compres-
sor to cool prior to servicing.
1.
Set the Auto/Off lever to "OFF (0)", unplug the unit, and
relieve all air pressure from the tank.
2.
Remove the outer belt guard (Z).
3.
Mark motor position on saddle.
4.
Loosen the motor mounting screws and
slide the motor toward the air compressor pump.
5.
Remove the belt and replace with a new one.
6.
See the Adjusting Belt Tension before tightening motor
mounting screws.
ADJUSTING BELT TENSION
1.
Slide motor into original position, line the motor up with the
mark made earlier on saddle.
2.
Tighten two outside
motor mounting
screws enough to
hold the motor in
place for checking
pulley and flywheel
alignment.
3.
The belt should de-
flect 1/4" (6.5 mm) at
midway between the
pulley and the flywheel when a 10 pound (4.5 kg.) weight is
applied at the midway point.
4.
When proper belt tension is achieved, tighten motor mount-
ing screws. Torque to 15-20 ft-lbs (20.3-27.1 Nm).
NOTICE: 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" (1.6 mm) to prevent excessive belt wear.
Verify the alignment by performing the following Motor Pulley/
Flywheel - Alignment.
MOTOR PULLEY/FLYWHEEL ALIGNMENT
20
Downward Force
Deflection
Fig. 23
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