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 TM 55-1905-242-14
0196 00
INSPECTION (continued)
3.
Examine the piston (16) for scratches or scoring on the Outside Diameter (O.D.). Slide the piston, without seal rings
(17), through the housing (7) to ensure that it moves freely throughout the length of the housing. Machine or replace
the piston as required.
4.
Discard all O-rings and gaskets in accordance with local regulations. Obtain new parts as required.
ASSEMBLY
1.
Install the seal rings (17) onto the piston (16). Lubricate the seal rings with clean hydraulic fluid.
2.
Coat the Inside Diameter (I.D.) of the housing (7) with clean hydraulic fluid.
3.
Insert the piston (16) into the housing (7) bore with the closed end first. Check the seal rings (17) to be sure they are not
twisted or otherwise damaged.
4.
Push the piston (16) half way down the housing (7) bore.
5.
Install the O-ring (14) to the oil end cap (15). Coat the O-ring with light grease to hold it in place.
6.
Slide the oil end cap (15) into the housing (7) beyond its normal position.
7.
Install the ring segments (12 and 13) to hold the oil end cap (15) in place.
8.
Push the piston (16) against the oil end cap (15) to position the oil end cap against the ring segments (12 and 13).
9.
Install the retaining plate (10) and secure the oil end cap (15) with the lockwashers (9) and screws (8).
10. Install the O-ring (14) to the air end cap (11). Coat the O-ring with light grease to hold it in place.
11. Slide the air end cap (11) into the housing (7) beyond its normal position.
12. Install the ring segments (12 and 13) and hold in place.
13. Apply pneumatic force of 50 lb/in (3.4 bar) maximum to position the air end cap (11) against the ring segments (12 and 13).
14. Install the retaining plate (10) and secure it with the lockwashers (9) and screws (8).
15. Release the pneumatic pressure.
16. Install the gasket (6) and fusible plug (5). Torque the fusible plug to 20 to 25 lb-ft (27 to 34 Nm).
17. Install the air valve gasket (4) and air valve assembly (3). Torque the air valve assembly to 45 to 50 lb-ft (61 to 68 Nm).
Do not tighten the air valve (2) at this time.
18. Dispose of used cleaning solvent, hydraulic fluid, and contaminated materials in accordance with local regulations.
0196 00-3
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