TM-5-3895-371-24-P

BITUMINOUS DISTRIBUTOR BODY M918, MODEL D-63

TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LIST

MARCH 1981

TM-5-3895-371-24-P - Page 213 of 330

TM 5-3895-371-24 & P

(9)

Check clearance between bronze piston shoe and steel piston (16) body. With a push-

pull motion check for free play between shoe and body. If any free play can be felt, the piston (16)

must be replaced.

(10)

Inspect the bronze piston shoe running surface. During normal service, a dulling of the

running surface is to be expected. If large scratches are present, make severaI short passes over 500

grit emery paper on a lap table. (Refer to fig. 3-81.) On the last few gasses, place five to six sheets of

emery paper as a cushion under the top sheet to obtain the proper edge sharpness. Check the reworked

piston (16) against the tolerance limits in figure 3-82. If the piston (16) does not fall within the toler-

ance limits, it must be discarded.

BRONZE SHOE

TA 075954

Figure 3-81. Inspecting Piston.

TA 075955

Figure 3-82. Piston Shoe Rework Tolerance

3-68