TM 9-2350-287-20-1
TABLE 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) FOR M992A1
S= SEMIANNUAL A= ANNUAL
ITEM INTERVAL
ITEM TO BE
PROCEDURE
NOT FULLY MISSION
NO.
INSPECTED
CAPABLE IF
13
[Text Deleted]
14
A
FLEXIBLE
a. Turn coupling insert by rotating
a. Coupling insert moves
COUPLING
alternator fan; coupling insert should
more than 1/8 inch.
INSERT
not move more than 1/8 inch (para
3-12). If coupling insert moves more
than 1/8 inch, remove and inspect
coupling insert (para 3-12).
b. Check coupling insert for cracks,
b. Coupling insert is cracked
missing/loose mounting bolts, or
or has missing/loose mount-
broken housing (para 3-12).
ing bolts, or housing is
broken.
c. Remove radiator shroud (para 6-8).
WARNING
15
A
COOLING SYSTEM
Do not remove radiator cap from
RADIATOR HOSES
radiator if engine is warm. Steam
AND PUMPS
and hot gases can cause injury or
severe burns to personnel.
a. Check for cracked, weak, or
a. Any hoses are cracked,
broken hoses (18).
worn, or broken.
b. Check cooling system for leakage.
b. Any coolant leaks.
c. Remove radiator shroud (para 6-8).
Change 1 2-23
