TM 9-2350-287-20-1
TABLE 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) FOR M992A1
ITEM
NO.
28
29
INTERVAL
A
A
S=SEMIANNUAL
A=ANNUAL
ITEM TO BE
INSPECTED
TOP DOORS
middle door (para 15-22).
COMMANDER’S
CUPOLA
PROCEDURE
a. Check operation and fit of all three
top doors (33) (refer to TM 9-2350-
287-10).
b. Inspect doors for loose, damaged,
or deteriorated door seals (para 15-17
15-18, 15-19, and 15-22).
c. Check inside latch operation of top
d. Inspect hinge operation. Check for
cracked hinges, latches, and attaching
bolts (para 15-22).
e. Check spring assist of torsion bars
by opening and closing top middle
door (para 15-22).
f. Repair or replace defective
components as necessary.
a. Rotate cupola to ensure ease of
rotation (refer to TM 9-2350-287-10).
b. Operate cupola hatch latches and
make sure hatch locks in both open and
closed positions (refer to TM 9-2350-
287-10).
c. Check seals for tears and
deterioration (para 15-46).
d. Repair or replace defective com-
ponents as necessary.
NOT FULLY MISSION
CAPABLE IF
b. Commander’s cupola will
not lock in open and closed
positions.
2-30
