TM 9-2320-279-34-3
M977, M985, and M984E1 Crane
NOTE
Maintenance Instructions
Gear may be installed for right or left hand use.
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(Cont)
Remove screw (11) and seal washer (12).
Matchmark position of gear (13).
Remove four screws (14), cap (15), and preformed
packing (16) from directional valve (8).
Remove four screws (17), cap (18), and
preformed packing (19).
Remove spool (20) from directional valve (8).
Remove screw (21), seat (22), spring (23), and
seat (24) from spool (20).
Remove two plugs (25) and
preformed packings (26).
Remove plug (27) and
preformed packing (28).
Remove two plugs (29) and
preformed packings (30).
NOTE
A standard 4-40 x 2 screw
will aid in removal of shuttle
valves. Valves may separate
on removal. Replace valves if
separated.
(14) Remove two plugs (31),
preformed packings (32),
and shuttle valves (33) from
valve body (3).
NOTE
Preformed packings and
backup ring may stay in body.
(15) Remove two preformed packings (34) and backup ring (35) from shuttle valves (33).
17-138.3
