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 TM 55-1905-220-14-1
Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - continued
Item
Location Item to
Not Mission
No
Interval
Check/Service
Procedure
Capable If :
89
WEEKLY
Equipment
AIR HORN COMPRESSOR
General
DRIVE BELT. Check for wear and
Worn, cracked
cracks. Check tension. A 3/8 inch
or broken.
play is allowed. Tighten if required.
Tension on V-belt is adjusted by
loosening the four bolts which hold
the motor to the base. Slotted bolt
holes are provided for this purpose.
CAUTION
Avoid overtightening the
belt. While the belt should
not be loose enough to
cause slipping, it should not
be tight or overstrained.
This puts an extra load on
the motor and compressor
bearings. Keep oil and
water off the belt and do
not use belt dressing on it.
CAUTION
When moving the motor to
adjust the belt always
check the alignment of the
pulleys so the belt runs
true. Misalignment of the
pulleys causes rapid belt
wear.
90
BI-WEEKLY
Engine Room
DUAL OIL FILTER. Install new
Filter
elements and gasket when engine oil
obstructed.
is changed. Remove drain plug (15)
and drain contents into a suitable
container. Remove screw (16) and
washer (17). Remove shell (18),
spring (19), spacer ring (20), spring
(21), and spring (22). Also remove
filter (23) and gasket (24).
NOTE
Prior to installing gasket,
place a light coating of oil
on gasket.
Change 5
2-151
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