Cleaning. - TM-55-1930-208-240048

TM 55-1930-208-24

c. Cleaning.

WARNING

Do not breathe cleaning solvent P-D-680 vapors for long periods of time or use solvent near open flames.

To avoid illness, explosion, or fire, only use solvent in well-ventilated areas away from open flames.

(1) Clean end caps and piston with cleaning solvent (item 4, Appendix C).

(2) Allow parts to dry.

d. Inspection.

(1) Inspect bore of housing for scratches. The bore must be free of scratches. Minor scratches may be

polished out with fine crocus cloth (item 5, Appendix C).

(2) Inspect piston for scratches or scoring. Replace a damaged piston.

(3) Inspect threads and valve seat on valve assembly, replace if damaged.

e. Repair. Repair is limited to replacing damaged components.

f. Reassembly.

(1) Refer to figure 3-12 and install name plate (27) on housing (22) and secure with strap (26) and clip (25).

(2) Lubricate seal (24) with oil (item 12, Appendix C) and Install seal (24) and ring (23) on piston (21).

(3) Lubricate inside of housing (22) with a light coat of oil (item 12, Appendix C). Carefully insert the pistol

(21) into the housing bore with the closed end first. Once piston has entered housing, push it half way

down.

(4) Install two packings (19) and two seals (20) on end caps (18 and 12). Slide oil end cap (18) into the

housing.

(5) Install ring segments (17 and 16) and hold in place. Push piston (21) against oil end cap (18). Install plate

(15) and secure with lockwashers (14) and screw (13).

(6) Install gas end cap (12). Install ring segments (11 and 10) and hold in place. Push end cap (12) into

position, by using a wooden dowel through the oil end cap (18). Install plate (9) and secure with

lockwasher (8) and screw (7).

(7) Install gasket (6) and fuse assembly (5). Torque to 20-25 ft-lb (2.26 - 2.83 N).

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