TM 1-1520-238-23
3-272
Change 4
3.66.
SINGLE DISK BRAKE, FRICTION LINING, AND BRAKE DISK REMOVAL/INSTALLATION
(GOODYEAR/ABSC) – continued
3.66.6. Repair
a. Repair housing (3) by replacing packings (14)
installed on brake cylinder heads (15); pack-
ings (16) and packing retainers (17) installed
on pistons (13).
(1) Remove lockwire from three heads (15).
(2) Remove three heads (15) from pistons (13).
Use spanner wrench set.
(3) Remove and discard three packings (14)
from heads (15).
(4) Remove three pistons (13) from housing (3).
(5) Remove and discard three packings (16) and
retainers (17) from pistons (13).
(6) Clean pistons (13) and housing (3) mounting
area. Use cloth (item 52, App F) and
hydraulic fluid (item 93, App F).
(7) Check heads (15) and pistons (13) for cracks
and separation. None allowed.
(8) Check heads (15) and pistons (13) for corro-
sion (para 1.49).
(9) Lubricate new packings (14) and (16) and
retainers (17). Use hydraulic fluid (item 93,
App F).
(10) Install three new packings (16) and retainers
(17) on pistons (13). If linings (12) were not
removed, seat pistons (13) on installed lin-
ings (12).
(11) Install three new packings (14) on heads (15).
Use spanner wrench set.
(12) Tighten heads (15) flush with housing (3).
(13) Lockwire heads (15) together. Use wire
(item 224, App F).
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