TM 5-3805-248-10
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - CONTINUED
0014 00
Table 1. Preventive Maintenance Checks and Services (PMCS) for 621B Scraper - Continued.
LOCATION
ITEM TO
CHECK/
ITEM
MAN-
NOT FULLY MISSION
SERVICE
NO.
INTERVAL
HOURS
PROCEDURE
CAPABLE IF:
b. Check engine compartment for evi-
Class III fuel or oil leaks are
21
dence of fluid leakage such as oil,
evident. Any coolant leak is
(Con't)
coolant and fuel.
evident.
c. Check engine compartment for any
Damage that would impair
of the following conditions:
operation is evident.
(1) Loose, damaged or missing
drive belts
(2) Loose or damaged coolant
hoses
(3) Damaged electrical harness
(4) Damaged radiator fan or
clogged radiator
RADIATOR
RADIATOR
FAN
CAP
(HIDDEN)
COOLANT
HOSE
DRIVE
BELTS
394-191
WARNING
Do NOT service cooling system unless engine has been
allowed to cool down. This is a pressurized cooling system and
escaping steam or hot coolant will cause serious burns.
Do NOT remove cooling system radiator cap when engine is
hot. Allow engine to cool down. Loosen cap to first stop and
let any pressure out of cooling system, then remove cap. Fail-
ure to follow this warning may cause serious burns.
Wear effective eye, glove and skin protection when handling
coolants. Failure to do so may cause injury.
0014 00-14