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.
Figure 3-81. Inspecting Piston.
Figure 3-82. Piston Shoe Rework Tolerance