ENGINE COOLING GROUP

TM 55-1740-200-14

e. Replace broken or distorted relief valve spring.

4-430. ENGINE COOLING GROUP.

4-431. REPAIR. Refer to paragraph 4-141 for inspec-

f. Replace nonrepairable parts.

tion and repair the engine cooling group in accordance

with the following procedures. (See figure 4-33.)

g. Install in accordance with paragraph 4-574.

4-436. ENGINE.

a. Straighten bent fan blades.

4-437. REPAIR. Refer to paragraph 4-153 for inspec-

b. Replace water pump seals and gaskets.

tion and repair the engine and transmission in accordance

with the following procedures. (See figures 4-37 and

c. Remove nicks and burrs from impeller and shaft

4-38.)

with crocus cloth.

d. Replace deteriorated or worn fan belt.

a. Straighten bent or distorted brackets.

b. Remove dents from covers and tubes.

e. Replace nonrepairable parts.

f. Install in accordance with paragraph 4-565.

c. Replace all missing hardware.

d. Replace nonrepairable parts.

4-432. PARKING BRAKE AND DIFFERENTIAL

LOCKOUT LEVERS.

e. Reassemble in accordance with paragraph 4579.

4-433. REPAIR. Refer to paragraph 4-145 for inspec-

tion and repair the parking brake and differential lockout

levers in accordance with the following procedures. (See

4-438. HYDRAULIC TRANSMISSION.

figures 4-34 and 4-35.)

a. Turn the brake drum to remove deep scores.

4-439. REPAIR. Refer to paragraph 4-157 for inspec-

tion and repair the hydraulic transmission in accordance

b. Replace broken or distorted springs.

with the following procedures. (See figure 4-37.)

c. Replace worn brake lining.

a. Straighten bent or restricted valve tubing.

d. Straighten bent linkage, levers and brackets.

b. Replace all worn or damaged seals.

e. Replace nonrepairable parts.

c. Replace distorted springs and retaining rings.

f. Reassemble in accordance with paragraphs 4567

d. Remove nicks and scores from bushings with crocus

and 4-571.

cloth

4-434. OILING GROUP.

e. Replace nonrepairable parts.

4-435. REPAIR. Refer to paragraph 4-149 for inspec-

f. Install in accordance with paragraph 4-583.

tion and repair the engine oiling in accordance with the

following procedures. (See figure 4-36.)

4-440. MECHANICAL TRANSMISSION.

a. Replace all filter elements.

4-441. REPAIR. Refer to paragraph 4-161 for inspec-

tion and repair the mechanical transmission in accordance

b. Clean all oil lines, replace broken or deteriorated

hose.

with the following procedures. (See figure 4-37.)

c. Replace all gaskets and rubber components.

a. Replace all broken or distorted springs.

d. Clean all oil passages.

b. Install in accordance with paragraph 4-586.

4-108