TM 9-4940-568-20
2-20
2-9. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
TABLES (CONT).
Table 2-1. Unit Level Preventive Maintenance Checks and Services (PMCS) (CONT).
Item
No.
Interval
Item to Be
Inspected
Procedure
Not Mission
Capable If:
1
3
2
13
Semi-
Annual
Air
Compressor
a.
Check all lines, hoses and connections for
frays, looseness or leaks. Replace damaged
hoses and line. Tighten all loose connections.
Refer to Para 11-2.
b.
Check condition of intake filter (1).
Replace filter as required. Refer to Para 11-6.
c.
Check air compressor belt (2) for 1/2 in.
deflection, cracks, frays or excessive wear.
Tighten or replace belt as necessary. Refer to
Para 11-3.
d.
Check rubber mounts (3) under air
compressor for deterioration and looseness.
Replace rubber mounts as necessary. Refer to
Para 11-2.
e.
Drain air compressor crank case oil every
250 hours or semi-annually, whichever comes
first (Para 11-9). Refill with OE/HDO as
required (Table 2-2).
