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 287 of 750

TM 5-5420-228-24

MASTER RELIEF VALVE (RV1) AND CHECK VALVE (CV1) REPLACEMENT

TOOLS:

1-7/16 in. open end wrench

12 in. adjustable wrench

15 in. adjustable wrench

10 in. pipe wrench

SUPPLIES:

Drip pans (suitable containers)

Rags (Item 12, Appendix D)

Pipe tape (Item 19, Appendix D)

Masking tape (Item 18, Appendix D)

Pencil (Item 22, Appendix D)

Protective caps and plugs

Nipple

REFERENCES:

PRELIMINARY

LO

5-5420-202-12

TM 11-5820-498-12

TM 5-5420-202-10

PROCEDURES:

Relieve hydraulic pressure (page 3-71)

(Sheet 1 of 3)

Remove radio from mount (TM 11-5820-498-12)

Drain hydraulic reservoir (page 3-74)

Cap or plug all lines and fittings as they are dis-

connected. Use rags and drip pans to catch ex-

cess hydraulic fluid. Use tape to tag lines for

installation.

REMOVAL:

1.

Holding elbow (A) with 12 inch adjustable

wrench, use 1-7/16 inch wrench to dis-

connect hose assembly “BA” (B).

2.

Using 12 inch adjustable wrench, remove elbow (A) and collar “BA” (C) from master

relief valve “RV1” (D).

Go

on to Sheet

2

3-90

TA251488