TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-15. ERECTION CYLINDER REPAIR (CONT).
(3)
Remove setscrew (10) and loosen
retaining ring (11).
(4)
Remove rod assembly (12) from
cylinder (9).
NOTE
Do steps (4.1) and (4.2) for Model A only.
(4.1) Remove two grease fittings (12.1)
from rod assembly (12).
(4.2) Remove setscrew (12.2) and rod
cap (12.3) from rod (12).
NOTE
Do step (5) for Model B cylinder.
(5)
Remove locknut (13) from rod (14).
(6)
Remove wear ring (15), two backup
rings (16), preformed packing (17), and
wear ring.
NOTE
Do step (6.1) for Model A cylinder.
(6.1) Remove setscrew (17.1) from piston (18).
(7)
Remove piston (18), backup ring (19),
preformed packing (20), and backup ring
from rod (14).
17-72.4
Change 3
