TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-17. LIFT CYLINDER REPAIR (CONT).
a. Disassembly.
(1)
(2)
(3)
Remove holding valve (1).
Remove two backup rings (2), preformed
packing (3), two backup rings (4), and
preformed packings (5 and 6).
Remove two grease fittings (7) and
bushings (8) from each end of
cylinder (9).
NOTE
Retaining ring may require heat
for disassembly.
(4) Remove setscrew (10) and
loosen retaining ring (11).
(5) Remove rod assembly (12)
from cylinder (9).
(6) Remove nut (13) from rod (12).
(7) Remove wear ring (14), two backup rings (15),
preformed packing (16), and wear ring (14).
(8) Remove piston (17).
(9) Remove backup ring (18), preformed packing (19),
and backup ring (18) from piston (17).
17-80
