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 504 of 750

TM 5-5420-228-24

HEU OR EARLY MODEL OVERHEAD CYLINDER REPLACEMENT (Sheet 1 of 7)

PROCEDURE INDEX

P

r

o

c

e

d

u

r

e

s

P

a

g

e

Removal

3-225

Installation

3-228

TOOLS:

12-in. Adjustable wrench

Ratchet with 3/8 inch drive

1 1/4-in. Open end wrench

5-inch extension with 3/8 inch drive

7/16 in. socket with 3/8 in. drive

1 5/16-in. socket with 3/4 in. drive

Snap ring pliers (outside)

Ratchet with 3/4 in. drive

Hammer

Crow bar

Lifting device (2000 lb capacity)

Sling

Punch, drive pin, 3/4 in. x 10 in.

Cylinder rod wrench, 4-9/16 in.

1-1/8 in. open end wrench

SUPPLIES:

Pencil (Item 22, Appendix D)

Protective caps and plugs (assorted sizes)

Drip pans (suitable containers)

Pipe tape (Item 19, Appendix D)

Masking tape (Item 18, Appendix D)

Rags (Item 12, Appendix D)

Lockwashers (10 required)

PERSONNEL: Three

REFERENCE: LO-12

TM-10

PRELIMINARY PROCEDURES: Extend tongue (TM-10)

Remove overhead cylinder armor (page 3-223)

Relieve hydraulic pressure (page 3-71)

For HEU models, remove overhead counterbalance valve, hoses, and fittings

(page 3-204.5)

NOTE

•

Use rags and drip pans to catch excess hydraulic fluid. Use masking tape to tag

lines for installation. Cap or plug all lines and fittings as they are disconnected.

•

For HEU models, go to step 7.

REMOVAL:

1.

Using adjustable wrench to hold elbow (A),

use 1-1/4 inch wrench to disconnect hose

assembly (B).

2.

Using adjustable wrench to hold elbow (C),

use 1-1/4 inch wrench to disconnect hose

assembly (D).

3.

Using 1-1/8 inch wrench to hold adapter (E),

use 1-1/4 inch wrench to disconnect hose

assembly (F).

Go on to Sheet 2

Change 3

3-225