Pulley And Fly Wheel Alignment; Air Compressor Pump Intake And Exhaust Valves; Inspect Air Lines And Fittings For Leaks - DeWalt DXCMTB5590856 Instruction Manual

(engine torque to 10– 20 ft.-lbs./13.5–27.1 Nm), stiffener
bracket bolt (Torque to 10–20 ft.- lbs./13.5–27.1 Nm).
8. Replace belt guard.
9. Reconnect spark plug wire.

Pulley and Fly wheel Alignment

The air compressor flywheel and engine pulley must be in-line
(in the same plane) within 1/16" (1.6 mm) to ensure belt retention
within flywheel belt grooves. To check alignment:
1. Ensure engine ON/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
(X) against the outside
of the flywheel (Y) and
the engine drive pulley
(Z).
7. Measure the distance between the edge of the belt (AA)
and the straightedge at points A1 and A2 in Figure. The
difference between mea sure ments should be no more than
1/16" (1.6 mm).
8. If the difference is greater than 1/16" (1.6 mm), loosen the
A1 A2 B1 B2
Y
AA
Z
X
A1 A2 B1 B2
setscrew holding the engine drive pulley to the shaft and
adjust the pulley's position on the shaft until the A1 and A2
mea sure ments are within 1/16" (1.6 mm) of each other.
9. Tighten the engine drive pulley setscrew. Torque to 145–180 in.-
lbs. (16.4 – 20.3 Nm).
10. Visually inspect the engine 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, loos en
the setscrew of the engine drive pulley and equal ize B1 and
B2, using care not to disturb the belt align ment per formed in
Step 8.
11. Retighten the engine drive pulley set screw. Torque to
145– 180 in.-lbs. (16.4–20.3 Nm).
12. Reinstall belt guard.
13. Reconnect spark plug wire.
Air Compressor Pump Intake and Exhaust
Valves
Once a year have a Trained Service Technician check the air com-
pressor pump intake and exhaust valves.

Inspect Air Lines and Fittings for Leaks

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. Apply a soap solution to all air line fittings and connections/pip-
ing.
5. Correct any leaks found.
6. Reconnect spark plug wire.
IMPORTANT: Even minor leaks can cause the air compressor
20