TM 10-3930-641-20
ORGANIZATIONAL PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) (CONT)
(Sheet 5 of 30)
LOCATION
ITEM TO
ITEM
CHECK/
NOT FULLY MISSION
NO.
INTERVAL
MAN-HOURS
PROCEDURE
CAPABLE IF:
SERVICE
WARNING
7
250 Hours or
Exhaust Sys-
Semiannual
tem
Exhaust system components may be hot to the touch, unless engine has been allowed to
cool down. Use caution to safeguard against burns. Failure to follow this warning may
result in injury to personnel.
a. With engine cool, inspect muffler for evidence of
leaks and damage. Replace if necessary. (See
page 2-211.)
b. Inspect exhaust pipe for evidence of leaks and
damage. Replace if necessary. (See page 2-211.)
c. Inspect for loose, missing, or damaged exhaust
manifold taperlock studs. Notify Direct Support
Maintenance if any of these conditions exist.
WARNING
8
250 Hours or
Cooling Sys-
Semiannual
tem
Cooling system components may be hot to the touch, unless engine has been allowed to
cool down. Use caution to safeguard against burns. Failure to follow this warning may
result in injury to personnel.
a. Inspect radiator hoses and coolant lines for leaks Class III coolant leaks are evident.
and damage. Replace as necessary. (See page 2-
247.)
b. Inspect water pump for leaks and proper func- Class III coolant leaks are evident.
tioning. Replace if necessary. (See page 2-225.)
Go on to Sheet 6
Change 2
2-10