TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-6. SWING DRIVE VALVE REMOVAL/REPAIR/INSTALLATION (CONT).
(2)
(3)
Install two preformed packings (5), valve seats (6),
springs (7), preformed packings (8), and check
valves (9) in valve (4).
Install preformed packing (10) and elbow (11) in
valve (4).
(4) Install two preformed packings (12) and
fittings (13) in valve (4).
(5) Install two preformed packings (14), backup
rings (15), and preformed packings (16) in
valve (4).
(6) Install two relief valves (17) in valve (4).
d. Installation.
(1) Install two preformed packings (1)
in motor (2).
(2) Install valve (3) with four
screws (4) and lockwashers (5).
e. Follow-on Maintenance. Install swing drive valve hydraulic hoses and tubes (para 17-2).
END OF TASK
17-28