TM 1-1520-238-23
3-263
3.65.
SINGLE DISK BRAKE, FRICTION LINING, AND BRAKE DISK REMOVAL/INSTALLATION
(PARKER-HANNIFIN) – continued
3.65.6. Repair
a. Repair cylinder assembly (3) by replacing
packings (18) and packing retainers (19)
installed on hydraulic brake pistons (20).
(1) Remove three pistons (20) from cylinder as-
sembly (3).
(2) Remove and discard three packings (18) and
packing retainers (19) from pistons (20).
(3) Clean pistons (20) and cylinder assembly (3)
mounting area. Use cloth (item 52, App F)
and hydraulic fluid (item 93, App F).
(4) Check pistons (20) for cracks and separation.
None allowed.
(5) Check pistons (20) for corrosion (para 1.49).
(6) Lubricate new packings (18) and retainers
(19). Use hydraulic fluid (item 93, App F).
(7) Install three new packings (18) and retainers
(19) on pistons (20).
(8) Install pistons (20) in cylinder assembly (3).
Fully seat pistons (20).
b. Inspect (QA).
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M04-3422-7
