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 TM 55-1905-219-14-1
Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - continued
Location
Item
Item to Check/
Not Mission
No.
Interval
Service
Procedure
Capable :
89
WEEKLY
Equipment General
AIR HORN COMPRESSOR
Worn, cracked or
DRIVE BELT. Check for wear and cracks.
broken.
Check tension. A 3/8 inch play is allowed.
Tighten if required. Tension on V-bet 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 element and
Filter obstructed.
gasket when engine oil 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 filer (23) and gasket (24).
NOTE
Prior to installing gasket, place
a light coating of oil on gasket.
Change 4 2-139
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