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5. Remove the front of the
beltguard by removing
the screws (V) using a
Torx T30 bit.
6. Mark pump position on
saddle.
7. Loosen the engine
mounting screws and
slide the engine toward
the air compressor.
8. Remove the belt and
replace with a new one.
9. See the Adjusting Belt Tension before tightening engine
mounting screws.
10. Reconnect spark plug wire.
Adjusting Belt Tension
1. Ensure engine START/RUN/OFF switch (C) is in the OFF
position.
2. Allow the unit to cool.
3. Disconnect spark plug wire.
4. Drain air tank.
5. Slide engine into origi-
nal position, line the
engine up with the
mark made earlier on
saddle.
6. Tighten two outside
engine mounting
screws enough to hold
the engine in place for
checking pulley and flywheel alignment.
7. The belt should deflect 1/2" (13 mm) at midway between the
pulley and the
flywheel when a 5 pound (2.26 kg.) weight is applied at the
midway point.
8. When proper belt tension is achieved, tighten all four engine
mounting screws. Torque to 15-22 ft-lbs
(20.3–29.8 Nm).
9. Reconnect spark plug wire.
Pulley and Fly wheel Alignment
V
NOTE: Once the engine 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.
The air compressor flywheel and engine pulley must be in-line
(in the same plane) within 1/16" (1.6 mm) to assure belt retention
within flywheel belt grooves. To check alignment, perform the fol-
lowing steps:
1. Ensure engine START/RUN/OFF switch (C) is in the OFF
Position.
2. Allow the unit to cool.
3. Disconnect spark plug wire.
4. Drain air tank.
5. Remove belt guard.
6. Place a straightedge
against the outside of
Deflection
the flywheel and the
engine drive pulley.
7. Measure the distance
between the edge of the belt and the straightedge at points A1
and A2 in figure. The difference between measurements should
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