TM 5-3805-255-14
0093
REMOVAL CONTINUED
NOTE
Precautions must be taken to see that parts are marked so they may be reinstalled in their
respective cylinders if they are to be reused.
7. Use a piston ring expander to remove three piston rings (Figure 5, Item 1) from piston (Figure 5, Item 4),
removing top ring first and remaining rings in order.
8. Remove two piston pin retainer rings (Figure 5, Item 2), one from each side of piston (Figure 5, Item 4), and
remove piston pin (Figure 5, Item 3) from piston. If piston pin cannot be removed by hand, it is recommended
to heat piston in water to 160 to 180F (71 to -82C). Heating of piston makes it unnecessary to use force in
removing piston pin. Discard two piston pin retainer rings.
9. After piston pin (Figure 5, Item 3) is removed from piston (Figure 5, Item 4), separate piston from connecting
rod (Figure 5, Item 5).
Figure 5. Piston Disassembly.
0093
END OF TASK
0093-6
