TM-5-5420-228-24

LAUNCHER HYDRAULICS SYSTEM M48A5/M60A1 TANK CHASSIS, TRANSPORTING: FOR BRIDGE, ARMORED-VEHICLE-LAUNCHED; SCISSORING TYPE, CLASS 60

TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL

AUGUST 1985

TM-5-5420-228-24 - Page 193 of 750

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

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