TM-9-2350-238-34-2

CRANE (CAB) COMPONENTS, RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

APRIL 1992

TM-9-2350-238-34-2 - Page 192 of 327

TM 9-2350-238-34-2

2-39. MAINTENANCE OF PRESSURE RELIEF VALVE 12253778-1 AND PRESSURE

RELIEF VALVE 12253778-2.

This task covers: a.

Disassembly

e. Adjustment of boom cylin-

b. Inspection/Repair

der pressure relief valve

c. Reassembly

f. Adjustment of tow winch

d. Adjustment of check

pressure relief valve

valv e

g. Adjustment of boom winch

pressure relief valve

INITIAL SETUP

Tools and Special Tools

General Safety Instructions

General mechanic’s tool kit, automotive

(SC 5180-90-CL-N26)

Oil pressure tester (8356176)

Retaining ring pliers set (PR36)

●

Make sure all personnel stand clear

when operating boom to avoid in-

Materials/Parts

jury to personnel.

Engine oil (item 15, appx B)

Packing assortment kit (5705012)

●

When testing hydraulic system, be

sure boom is in stowed position, as

failure of system may result in in-

References

jury to personnel.

TM 9-2350-238-10

TM 9-2350-238-24P-2

●

Hydraulic system is under high

pressure. Follow system safety pro-

cedures to prevent injury (TM 9-

Equipment Conditions

2350-238-20-2). Wipe up spilled

2-154 Pressure relief valves removed

hydraulic fluid.

from counterbalance manifold

2-179