TM 5-4310-276-14
4-33. Flywheel Pulley.
removing capscrew and nuts.
a Removal.
b. Cleaning and Inspection.
Do not operate the air compressor
Drycleaning solvent, P-D-680, used to
with the belt guard removed.
clean parts is potentially dangerous to
(1) Remove belt guard (fig. 4-16) by removing
personnel and property. Avoid re-
peated and prolonged skin contact.
capscrew and nuts.
Do not use near open flame or exces-
(2) Loosen engine mounting bolts (1, fig. 4-23)
sive heat. Flash point of solvent is
to release tension on belts. Remove belts (2).
100F (38C).
(3) Loosen nut (3) and remove flywheel pulley
(4) and key (5).
(1) CIean all parts with cleaning solvent, item
b. Cleaning and Inspection.
5, App. D.
(2) Inspect the V-belt aguard and mounting
brackets for dents, cracks or other damage.
Drycleaning solvent, P-D-680, used to
Straighten minor dents and bends in the guard and
clean parts is potentially dangerous to
brackets.
personnel and property. Avoid re-
(3) Inspect all attaching hardware for dam-
peated and prolonged skin contact.
aged threads. Replace damaged attaching hardware
Do not use near open flame or exces-
and replace an unserviceable guard, bracket or
sive heat. Flash point of solvent is
other defective part.
100F (38C).
(1) Clean all parts with cleaning solvent, item
with nuts and capscrews.
5, App. D.
(2) Inspect the flywheel pulley for chips and
4-35. Unloader Valve.
cracks.
(3) Inspect the key for chips, burrs and snug
a. General. The unloader valve is a spring
loaded pressure release valve set to open at
fit.
175psi (12.3 kg/sq cm). This valve is pre-set at
(4) Replace any defective parts.
the factory and should not be adjusted by the
c. Installation.
user.
(1) Install flywheel pulley (4, fig. 4-23) and
key (5). Tighten nut (3) to 43 footpounds.
b. Removal.
(2) Install V-belts (2) and adjust tension to
(1) Release the air from the air receiver tank
obtain belt deflection of 3/4 of 1 inch midway be-
(1, fig. 4-25) by opening drain valve (2) at bottom of
tween pulleys. Tighten engine mounting bolts (1).
tank.
(3) Attach belt guard (fig. 4-16) with nuts and
capscrews.
4 - 3 4 . Belt and Pulley Guard.
Do not operate the air compressor
with the belt guard removed.
