TM 5-5420-234-14&P
5-30. HOOK ARM CYLINDER REPLACEMENT (continued).
NOTE
Right cylinder must be removed prior to left cylinder removal.
(3) Attach lifting device to right hook arm cylinder (18).
(4) Remove two screws (19), lockwashers (20), washers (21) from two pins (7 and 8), hook arm (1) and main
frame (3). Discard lockwashers.
(5) Remove two pins (7 and 8) and left hook arm cylinder (18) from hook arm (1) and main frame (3) with the
aid of an assistant and lifting device.
(6) Remove lifting device from left hook arm cylinder (18).
1
LIFTING
DEVICE
21
19
3
7
20
18
WOODEN
19
BLOCK
20 21
8
c. Left Cylinder Installation.
WARNING
Hook arm cylinder weighs 210 lb (95 kg). Attach suitable lifting device prior to
installation to prevent possible injury to personnel.
(1) Position left hook arm cylinder (18) on main frame (3) and hook arm (1) with two pins (8 and 7) with the
aid of an assistant and lifting device.
(2) Install pins (8 and 7) in main frame (3) and hook arm (1) with two washers (21), new lockwashers (20)
and screws (19).
(3) Remove lifting device from left hook arm cylinder (18).
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