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 519 of 750

TM 5-5420-228-24

HEU OR EARLY MODEL TONGUE CYLINDER REPLACEMENT (Sheet 1 of 6)

PROCEDURE INDEX

P

r

o

c

e

d

u

r

e

s

P

a

g

e

Removal

3-234

Installation

3-237

TOOLS:

10-in. Adjustable wrench

1-1/8 in. open end wrench

1-1/4 in. Open end wrench

Cylinder rod wrench

7/16 in. socket with 1/2 in. drive

Snap ring pliers (outside)

Ratchet with 1/2 inch drive

Hammer

Drift

Lifting device (2000 lb capacity)

Sling

SUPPLIES:

Wooden blocks (make from Item 25, Appendix D)

Drip pans (suitable containers)

Masking tape (Item 18, Appendix D)

Protective caps and plugs (assorted sizes)

Pipe tape (Item 19, Appendix D)

Pencil (Item 22, Appendix D)

PERSONNEL: Three

REFERENCE: TM-10

LO-12

PRELIMINARY PROCEDURES: For HEU models, remove tongue cylinder counterbalance valve, hoses, and fittings

(page 3-204.8)

Remove tongue cylinder armor (page 3-232)

REMOVAL:

NOTE

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

Use drip pans to catch

excess hydraulic fluid. Use masking tape to tag lines for installation.

1.

Using socket, remove two grease fittings (A).

NOTE

If necessary, use spreader when attaching

sling and lifting device to tongue cylinder (B).

2.

Position sling around tongue cylinder (B) and

attach lifting device (use spreader if necessary).

WARNING

Make sure sling is routed under hydraulic lines

and tongue cylinder (B) so that it cannot come

loose or dip.

Personnel could be injured if

hydraulic lines or tongue cylinder (B) come

loose during removal.

3.

Raise lifting device until sling is tight enough to

support tongue cylinder (B), then raise slightly

to take load off forward end of tongue cylinder

rod (C).

Go on to Sheet 2

3-234

Change 3