RELIEF VALVE.

TM 55-1740-200-14

e. Replace nonrepairable parts.

i. Replace nonrepairable parts.

f. Reassemble in accordance with paragraph 4486.

j. Install in accordance with paragraph 4-484.

4-389. REAR CAM AND VALVE ASSEMBLY.

4-383. RELIEF VALVE.

4-390. REPAIR. Refer to paragraph 4-55 for inspec-

4-384. REPAIR. Refer to paragraph 4-42 for inspec-

tion and repair the rear cam and valve assembly in

tion and repair the relief valve in accordance with the

accordance with the following procedures. (See figure

following procedures. (See figure 4-10.)

4-12.)

a. Replace broken or distorted springs.

a. Repair the rear cam and valve assembly using the

procedures in paragraph 4-388 a. through c.

b. Remove nicks and scores from balls and ball seats

with crocus cloth.

b. Reassemble in accordance with paragraph 4-495.

c. Replace worn or deteriorated rubber components.

4-391. HYDRAULIC PUMP.

d. Replace pipe components having stripped or dam-

aged threads.

4-392. REPAIR. Refer to paragraph 4-59 for inspec-

e. Replace nonrepairable parts.

tion and repair hydraulic pump in accordance with the

following procedures. (See figure 4-13.)

f. Reassemble in accordance with paragraph 4489.

a. Replace worn cracked or frayed drive belt.

4-385. FLOW CONTROL VALVE ASSEMBLY.

b. Replace broken or distorted springs.

4-386. REPAIR. Refer to paragraph 4-47 for inspec-

tion and repair the flow control valve in accordance with

Replace all vanes when any vane is bent or broken.

the following procedures. (See figure 4-11.)

d. Replace nonrepairable parts.

a. Replace broken or distorted spring.

e. Reassemble in accordance with paragraph 4498.

b. Remove nicks and scores from valve with fine

handstone.

4-393. BOOSTER CYLINDER.

c. Replace nonrepairable parts.

d. Reassemble in accordance with paragraph 4492.

4-394. REPAIR. Refer to paragraph 4-63 for inspec-

tion and repair the booster cylinder in accordance with

4-387. FRONT DRAG LINK VALVE.

the following procedures. (See figure 4-14.)

4-388. REPAIR. Refer to paragraph 4-50 for inspec-

a. Replace broken or distorted springs.

tion and repair the front drag link valve in accordance

with the following procedures. (See figure 4-9.)

b. Replace broken or distorted retaining rings.

a. Replace pipe components having stripped or dam-

c. Remove nicks and burrs from piston and ball seats

aged threads.

with crocus cloth or handstone.

b. Replace broken or distorted springs.

d. Replace worn or deteriorated rubber components.

c. Remove nicks and burrs from spool with crocus

e. Replace nonrepairable parts.

cloth.

f. Reassemble in accordance with paragraph 4-501.

d. Replace damaged or missing hardware.

4-104