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 107 of 327

TM 9-2350-238-34-2

2-28. MAINTENANCE OF BOOM AND WINCH–CONTROL CYLINDERS AND AT-

TACHING PARTS AND BOOM CONTROL CYLINDER ASSEMBLY (CONT).

REASSEMBLY (CONT)

16 Aline pin hole in cylinder boom barrel

with pin hole in boom cylinder head ex-

ternally threaded ring. Insert new cotter

pin (14) through pin holes to secure

boom cylinder head externally threaded

ring (12).

17 Install two new preformed packings (15),

and two machine thread plugs (16).

1 Refer to TM 9-4940-468-14 for test setup

4 Connect hydraulic line or hose (4) to port

and testing procedures.

(3). Leave port (5), at closed end of boom

control cylinder assembly (2), open.

2 Retract hydraulic piston (1) into boom

control cylinder assembly (2).

5 Apply 4000 psi (27,580 kPa) hydraulic

pressure to boom control cylinder

3 Fill boom control cylinder assembly (2)

assembly (2) through hydraulic line or

through upper port (3) with hydraulic fluid

hose (4) for 5 minutes.

(item 10, appx B).

2-94