TM 55-2815-574-24
0074
DISSASEMBLE
CAUTION
Once the piston has been removed from the liner, if the rings are allowed to expand, they must be
replaced. Failure to comply could result in damage to the piston ring grooves.
NOTE
Piston and liner assembly components should be matched and marked during disassembly
to ensure that they are assembled in the same position.
This task is typical for the rebuilding of all eight piston and liner assemblies.
1.
Slide the piston (1) out through the bottom of the cylinder liner (2).
2
5
12
7
11
3
14
4
3
3
10
4
3
1
89
6
2.
Remove the piston rings (3, 4 and 5).
a.
Secure the connecting rod (6) in a vice equipped with soft vice caps.
b.
Remove the piston rings (3, 4 and 5) by using ring expander J 8128.
c.
Discard piston rings (3, 4 and 5).
3.
Remove the connecting rod (6).
a.
Using a narrow chisel or punch, punch a hole through the center of one of the piston pin retainers (7).
b. Pry retainer (7) from the piston (1).
c.
Remove the opposite piston pin retainer (7) in the same manner.
d. Discard piston pin retainers (7).
e.
Remove two screws (8) and spacers (9) securing the connecting rod (6) to the piston pin (10).
f.
Remove piston (1) from connecting rod (6).
0074-2