MAIN CONTROL VALVE ASSEMBLY REPAIR - continued

TM 10-3930-673-34

(f)

Install poppet (26), spring (25), and adjusting screw (24) in plug (27).

(g)

Install one preformed packing (23) in each nut (21 and 22).

(h)

Install nuts (21 and 22) on adjusting screw (24).

(i)

Install two relief valve (20) in main control valve.

(3)

Assemble parts (2 through 19) and

install two relief valves (1) in main

control valve.

(a)

Install preformed packing (19) on

body (18).

(b)

Install preformed packing (14) on

poppet (13). Install back-up

ring (15).

(c)

Install poppet (17), poppet (16),

piston (13), and spring (12) into

body (18).

TR00990

(d)

Install preformed packings (9 and

11) onto plug (8).

(e)

Install back-up ring (10) and plug (8) in body (18).

(f)

Install poppet (7), spring (6), and adjusting screw (5) in plug (8).

(g)

Install preformed packing (4) in each nut (2 and 3).

(h)

Install nuts (2 and 3) on adjusting screw (5).

(i)

Install two relief valves (1) in main control valve.

NOTE

Follow-on Maintenance:

Install main control valve assembly (TM 10-3930-673-20).

Install boom cylinder flow control valve (TM 10-3930-673-20).

END OF TASK

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