Oil Pan Cleaning and Inspection

TM 10-3930-633-34

6-46. Oil Pan Cleaning and Inspection

(6) Check the drive shaft to housing bearing

clearance by measuring the OD of the shaft and

a. Cleaning.

the ID of the housing bearing.

(1) Scrape any dirt or metal particles from

(7) Inspect the relief valve spring for a

inside the pan.

collapsed or worn condition. Check the relief valve

(2) Scrape all gasket material from mounting

spring tension. If the spring tension is not within

flange.

specifications and/or the spring is worn or

( 3 ) Wash the pan in solvent, Federal

damaged, replace the spring.

Specification P-D-680, and dry thoroughly.

(8) Check the relief valve piston for scores

NOTE

and free operation in the bore.

Make certain that all foreign particles are removed

d. Assembly.

from below the baffle plate.

(1) Clean all parts thoroughly. Install the oil

pressure relief valve plunger, spring and new cap.

b. Inspection.

Stake the cap into position.

(1) Check the pan for cracks, holes, damaged

(2) Install the outer race (recessed dot facing

drain plug threads, and a loose baffle. Check the

out on same side as dot on rotor) and the inner

gasket surface for damage caused by overtorqued

rotor and shaft assembly.

bolts. Straighten the surface as required to

restore original flatness.

NOTE

T h e inner rotor and shaft and the outer race are

(2) Replace the pan if repairs cannot be made.

serviced as an assembly. One part should not be

replaced without replacing the other.

(3) Install the cover and torque the attaching

screws to specifications.