TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-28.3. RIGHT HAND REAR CONTROL VALVE BODY REMOVAL/REPAIR/INSTALLATION
(M984E1) (CONT).
d. Assembly.
(1) Install two preformed
packings (1) and backup
ring (2) on shuttle valve (3).
(2) Install shuttle valve (3),
preformed packing (4), and
plug (5) in valve body (6).
(3) Repeat steps (1) and (2) for
other three shuttle valves.
(4) Install preformed packing (7),
elbow (8), preformed
packing (9), and fitting (10).
(5) Install preformed packing (11),
fitting (12), two preformed
packings (13), and
fittings (14).
(6) Install seven preformed
packings (15) and plugs (16).
NOTE
All four directional valves are assembled and
installed the same.
(7)
(8)
(9)
Install spring seat (17), spring (18), spring
seat (17), and screw (19) on spool (20).
Install spool (20) in valve (21).
Install preformed packing (22) and end
cap (23) with four screws (24).
(10)
(11)
Install preformed packing (25) and end cap (26)
on valve (21) with four screws (27).
Install seal washer (28) and screw (29).
17-138.10
