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 465 of 750

TM 5-5420-228-24

COUNTERBALANCE VALVE CARTRIDGE “DD” REPLACEMENT (Sheet 1 of 1)

TOOLS:

1-1/2 in. open end wrench

SUPPLIES:

Drip pans (suitable containers)

Rags (Item 12, Appendix D)

Preformed packing (as required)

REFERENCE: LO-12

PRELIMINARY PROCEDURES:

Zero hydraulic pressure (page 3-70.5)

NOTE

Replacement of the counterbalance valve cartridge (A) is the same for all

counter balance valves. Replacement of the scissors cylinder counterbalance

valve cartridge (A) is shown.

REMOVAL:

1.

Use wrench to remove cartridge (A) from counter balance valve (B).

2.

Remove preformed packing (C).

INSTALLATION:

1.

Install new preformed packing (C) onto cartridge (A).

2.

Use wrench to install cartridge (A) into counter balance valve (B).

3.

Bleed hydraulic system (page 3-72).

4.

Check for hydraulic leaks and correct as necessary.

5.

Service hydraulic reservoir (LO-12).

End of Task

3-204.64

Change 3

C

B