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 TM 55-1925-204-12
(2) Disassembly.
lockwashers (2), and clamps (3).
(a) Remove
screws
(1, fig.
1.
Screw
9.
Ring, packing
2.
lockwasher
10. Cup
3.
Clamp
11. Piston
4.
Screw
12. Packing. performed
5.
Ring seal
13. Ring. packing
6.
Follower
14. Guide
C.
Cup
15. Packing, performed
F.
Follower
16. Retainer
Figure 4-21. Brake air cylinder.
(b) Remove screw (4) and ring seal (5)
(a) Inspect cups (7 and 10) for
from both ends, then remove ends and follower (6).
deterioration. Replace a defective cup. Inspect ring
(c) Remove cup (7), follower (8), and
packing (9 and 13) for pinching or cuts. Replace
ring, packing (9). Remove cup (10) and piston (11).
defective packings.
Remove packings (12).
(b) Inspect piston (11) for scoring or
(d) Remove ring, packing (13), guide
scratches. Replace a defective piston.
(14), packing (15) and retainer (16).
(c) Replace performed packings (12 and
(3) Cleaning, inspection, and repair. Clean all
15).
(4) Reassembly. Reverse the procedure in
parts in clean fuel oil and wipe dry.
step
4-34
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