TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
c. Removal Boom Down,
Hoist, and Telescope Solenoids.
(1)
(2)
(3)
Loosen three screws (1) and
remove three plugs (2) and
seals (3).
Disconnect six hydraulic
lines (4) from three
solenoids (5).
Remove two screws (6),
lockwashers (7), washer (8),
cover (9), and three
solenoids (5).
d. Installation Boom Down,
Hoist, and Telescope Solenoids.
(1) Install three solenoids (5),
with cover (9), two
washers (8),
lockwashers (7), and
screws (6).
(2) Connect six hydraulic
lines (4).
(3) Install three seals (3),
plugs (2), and screws (1).
e. Removal Shut Down
Solenoid.
(1) Loosen screw (1) and
remove plug (2) and
seal (3).
(2) Disconnect two hydraulic
lines (4).
(3) Remove two nuts (5),
lockwashers (6),
washers (7), screws (8),
washers (9), and
solenoid (10).
f. Installation Shut Down
Solenoid.
(1) Install solenoid (10) with
two washers (7),
lockwashers (6), and
nuts (5).
(2) Connect two hydraulic
lines (4).
(3) Install seal (3), plug (2), and
screw (1).
17-150.1
