TM 9-2350-287-20-1
lTEM
N0.
3
TABLE 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) FOR M992A1
S=SEMIANNUAL
A=ANNUAL
lNTERVAL
S
ITEM TO BE
INSPECTED
FUEL SYSTEM
(continued)
FUEL FILLER
ENGINE FAN
DRIVE SYSTEM
PROCEDURE
b. Check all connections for evidence
of leaks.
Remove and inspect fuel fill access
pIate, fill cap, and strainer (para 4-21).
Replace strainer if badly clogged
or torn.
Perform backlash test as follows:
a. Disconnect both battery ground
cables (para 7-41).
b. Open air intake grille (refer to
TM 9-2350-287-10).
c. Mark any accessible blade (2).
d. While holding the opposite fan
impeller, rotate marked blade (2) as
far left as possible. Mark fan housing
(1) directly above marked blade (2).
e. While holding the opposite fan
impeller, rotate marked blade (2) as
far right as possible. Mark fan
housing (1) directly above marked
blade (2).
f. Measure the distance between
# marks on fan housing (1). If
distances over one inch (2.5 cm),
backlash is excessive; notify Direct
Support maintenance.
NOT FULLY MISSION
CAPABLE IF
b. Any leaks.
Any missing screws or the
rubber seal is cracked, torn,
or missing. Clogged or torn
strainer.
f. Backlash is over one
inch (2.5 cm).
2-17