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).
b. Disassembly.
NOTE
All four top directional valves are removed and
repaired the same way. Matchmark valve to
control body.
(1) Remove elbow (1), preformed packing (2),
fitting (3), and preformed packing (4).
(2) Remove four caps (5), four screws (6), and
directional valve (7).
(3) Remove three preformed packings (8) and two
preformed packings (9).
(4) Remove screw (10) and seal washer (11).
NOTE
A 1/4 in. (6.3 mm) allen wrench will have to be cut
down approximately 1/2 in. (12.7 mm).
(5)
(6)
(7)
(8)
Remove four screws (12), cap (13), and
preformed packing (14) from directional
valve (7).
Remove four screws (15), cap (16), and
preformed packing (17).
Remove spool (18) from valve (7).
Remove screw (19), spring seat (20),
spring (21), and spring seat (20) from
spool (18).
1 7 - 1 3 8 .8
