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TM 10-3930-643-34
BRAKE TROUBLESHOOTING AND MAINTENANCE.
8-13.
Treadle Valve (S/N 2001 and above). (Sheet 2 of 8)
DISASSEMBLY
1.
Using a flat brass punch, depress
piston (9) to compress spring (2).
2.
Using internal snap ring pliers,
remove ring (l).
3.
Remove spring (2) and items 3 thru 9
as an assembly.
Discard spring (2).
4.
Using a flat brass punch, depress
retainer (4).
5.
Using internal snap ring pliers,
remove ring (3).
6.
Remove retainer (4), ring (5), spring
(6), shims (7) and preformed packing
(8) from piston (9).
Discard
preformed packing (8).
Go to sheet 3
8-55
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