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 196 of 750

VISION BLOCK REPLACEMENT (EARLY MODEL CUPOLA) (Sheet 2 of 3).

4.

5.

6.

7.

8.

Using diagonal cutting pliers

cut lock wire (E) and remove

it from three screws (F) holding

prism lock wedge (G).

Using 7/8 inch socket remove two

screws from outer holes in wedge (G).

Using 7/8 inch socket turn jackscrew

(H) to force wedge (G) from lock

posit ion.

Remove wedge (G) jackscrew (H) and

vision block (D).

WARNING

Cleaning agent specified is flammable.

Use only in well ventilated areas. Keep

away from flames, sparks, or heat. Do

not smoke while using.

Prevent

contact with eyes, mouth, and/or skin.

Wear rubber gloves when performing

cleaning procedures.

Clean all exposed surfaces with

dry cleaning solvent and wipe

TM 5-5420-228-24

dry with cotton rags.

INSTALLATION:

1.

Insert vision block (A) in cupola

body with outside surf ace flush

with cupola surface.

2.

Position wedge (B) slot down with

jackscrew (C) in slot.

3.

Insert wedge (B) with jackscrew

(C) and two outer screws (D) in

cupola body until screws are

finger tight.

Go on to Sheet 3

TA251412

3-11