TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-8. SWING DRIVE BRAKE REMOVAL/REPAIR/INSTALLATION (CONT).
(3) Remove stator (6), disc (7), stator (8), and disc (7)
from swing drive unit (5).
b. Disassembly.
(1) Remove elbow (1).
(2) Remove piston head assembly (2) and six springs (3)
from brake (4).
(3) Remove backup ring (5) and
preformed packing (6) from
head (2).
(4) Remove head (2) from piston (7).
(5) Remove backup ring (8) and
preformed packing (9) from
piston (7).
(6) Remove backup ring (10) and
preformed packing (11).
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