TM 55-2815-574-24
0074
DISSASEMBLE Continued
4.
Slide the piston pin (10) from the piston (1).
11
7
10
13
15
12
5.
Separate the piston skirt (11) from the piston crown (12).
6. Remove the seal ring (13) from the piston crown (12).
7.
Discard seal ring (13).
8.
Remove the piston pin bushing (14) from piston crown (12).
END OF TASK
CLEAN
WARNING
Flying particles and debris are present. Wear protective goggles. Failure to comply may result in
personnel injury or death.
1.
Use a wire brush to clean light carbon from the outside surfaces of the piston crown (12).
2.
Using a glass bead blaster, clean heavy carbon deposits from the piston crown (12).
WARNING
Compound may cause irritation to eyes or skin. In case compound comes in contact with eyes or
skin, immediately flush eyes with water, wash skin with soap and water. Wear protective goggles,
gloves, and clothing. Failure to comply may result in personnel injury or death.
3. Using cleaning compound, clean the piston crown (12).
4. Using a reconditioning tool, clean the compression ring grooves.
0074-3