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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 :
48
AFTER
Air Conditioning
COMPRESSOR UNIT ASSEMBLY
Low oil level.
CHECK OIL LEVEL. While system is in
operation, check oil level in crankcase by
checking sight glass (1). Add oil (VV-L-825),
whenever the oil level drops below normal,
(half-way up on sight glass), by removing
pipe plug (2). Replace the pipe plug. Allow
sufficient time for the system to balance after
adding oil. Check oil level again. If the oil
level in the crankcase still falls below normal,
refer to maintenance.
NOTE
After the compressor has been
stopped for several minutes,
the oil level in the compressor
crankcase should be about half-
way up on the sight glass.
During operation, the oil level
will be slightly lower but will
appear higher when oil is
foaming.
NOTE
The compressor holds 5 1/2 pts.
of oil.
Change 4 2-111
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