TM 5-5420-228-24
CUPOLA COVER REPLACEMENT
TOOLS:
Roller head pry bar
Snap ring pliers
Hammer
Crowbar
(sheet 1 of 2)
5/16 in. socket head screw key (allen wrench)
Brass drift
SUPPLIES:
Retaining rings (2 required)
Rope, 1/2 in. (approx. 10 ft.) (Item 24, Appendix D)
PRELIMINARY PROCEDURES:
Remove periscope mount lid (page 3-28).
PERSONNEL:
Two
REMOVAL:
NOTE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
• Left and right covers are identical.
●
For cupola cover on early model
cupola, start procedure at step 2.
For cupola cover on late model
cupola, start procedure
at step 1.
Remove cupola cover handles (page 3-21),
Open cover (A).
Loop rope around forward eye (B) of
spring (C) and while first technician
pulls slowly forward and side to side
with rope, second technician uses pry
bar to pry forward eye (B) of spring
(C) out of cover bracket (D).
Remove spring (C) from swing assembly (E).
Repeat steps 2 and 3 for opposite spring.
Close
cover
(A).
Using pliers, remove two retaining rings
(F) from hinge pin (G).
Using hammer, and brass drift tap out
hinge pin (G).
With second technician, remove cover (A) from vehicle.
From inside vehicle, use key to remove screw (H).
Using crowbar, pry out swing assembly (E) from bushing (J).
LATE MODEL CUPOLA
Using crowbar, pry out bushing (J) from mount (K).
COVER
Go
on
to
Sheet
2
TA251409
3-8