TM-5-4310-389-14
WARNING
Any break in air system integrity can cause contamination of the air system.
Serious injury or death may result due to air system contamination. Follow Army
diving cleaning procedures to maintain air system integrity.
REPLACE REPAIR
a. Removal/Installation 1st Stage Cylinder and Piston.
1.
Place piston at bottom dead center (BDC).
2.
Carefully lift off cylinders taking care not to damage piston or rings. Remove and discard 0-ring.
3.
Remove piston from connecting rod by first removing circlip and piston pin.
4.
Install piston on connecting rod and insert piston pin with a new circlip.
5.
Install new 0-ring and, using a ring compressor, install the cylinder sleeve over the piston.
6.
Set piston to top center. Lubricate sufficiently with oil and check that the piston ring gaps are in correct
position. Use the piston ring compressor and install the cylinder.
7. The crown of the piston at TDC must be flush with the top surface of the cylinder with cylinder head gasket
removed.
8.
Reinstall first stage head assembly; refer to paragraph 48.
b. Removal/Installation, 2nd and 3rd Stage Cylinder and Piston.
1.
Place piston at bottom dead center.
2.
Remove the four cylinder retaining nuts and washers, and pull off the cylinder. Remove and discard 0-
ring.
3.
Remove piston from connecting rod by first removing circlip and piston pin.
4.
Install piston on connecting rod and insert piston pin with new circlips.
5.
Install new 0-ring and, using a ring compressor, install the cylinder sleeve near the piston.
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