TM-9-2350-238-20-1

HULL AND RELATED COMPONENTS RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL

MAY 1994

TM-9-2350-238-20-1 - Page 1006 of 1364

TM 9-2350-238-20-1

2-171. MAINTENANCE OF SPADE HYDRAULIC CONTROL VALVES, LINES, AND

FITTINGS (CONT).

• To avoid injury to personnel, do not

tighten or loosen hydraulic fittings

when system is pressurized.

• Lower the boom to stowed position

before doing any maintenance on

hydraulic system.

• Wipe up any spilled hydraulic fluid

to prevent injury to personnel.

2

3

4

5

6

Install covers on open hydraulic ports,

tubes, and hoses immediately after

disconnecting them to keep dirt out of

hydraulic system.

1

Disconnect metal tube assembly (1) from

elbow (2).

7

8

Remove tube fitting locknut (3) and

preformed packing (4) from elbow (2).

Disconnect nonmetallic hose assembly (5)

and remove elbow (2).

Remove nonmetallic hose assembly (5)

from tube elbow (6).

Loosen tube fitting locknut (7) on tube

elbow (6).

Remove tube elbow (6), tube fitting locknut

(7), packing retainer (8), and preformed

packing (9) from port 1 of right hydraulic

cylinder assembly (10).

Disconnect metal tube assembly (11 ) from

elbow (12).

Remove tube fitting locknut (13) and

preformed packing (14) from elbow (12).

2-980