Replace Damaged Piston Seals (Using Rubber Or Gasket Material).

TM 5-3835-222-BD

8-12.4. Replace Damaged Piston Seals (Using Rubber Or Gasket Material).

Limitations:

New seal may not be compatible with fluid.

New seal may not hold high pressure.

Some internal leakage may persist.

Cylinder must be removed and disassembled.

Personnel/Time Required:

2 soldiers 2.5 hrs.

Materials/Tools:

Tool Kit

Razor Blades

Pencil Or Pen

Hoist

Neoprene Mat (appendix C, section II, item 18)

Procedural Steps:

a. Relieve pressure of hydraulic system.

b. Remove cylinder.

c. Remove bolts holding rod end of cylinder to cylinder body.

d. Carefully slide piston-rod end assembly out of cylinder body exposing piston seals.

e. Do not allow dirt to contaminate internal parts of the cylinder.

f. Remove damaged seal(s) from piston.

g. Trace outline of damaged seal(s) to neoprene mat or gasket material.

h. Cut the new seal(s) to neoprene mat or gasket material.

h. Cut the new seal(s) out carefully.

I. Install the new seal(s) on the piston.

j. Carefully slide piston-rod end assembly back into cylinder body.

k. Replace bolts holding rod end of cylinder to cylinder body and tighten.

I. Install repaired cylinder.

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