TM 9-2320-260-34-2
16-32. HYDRAULIC SWIVEL VALVE REPLACEMENT(M819) (Cont'd)
8.
Remove hoist winch drain hose (10) from end of tee fitting (13).
9.
Remove control valve bank drain hose (11) and bushing (12) from tee fitting (13).
10.
Remove tee fitting (13) from swivel valve (4).
NOTE
The four hoses on face of swivel must be disconnected from control
valve bank before removal from swivel valve.
11.
Remove two hoses (7) and (8) from swivel valve (4).
12.
Disconnect wire (1) from wire (9).
13.
Working under vehicle at bottom of pivot post support (24), disconnect wire (6) from wire (25).
14.
Remove two screws (23), washers (22), and plates (21) from support cap (20) and swivel valve
plug (5).
15.
Remove two screws (2) from top of swivel valve (4), and attach chain to swivel valve (4) with two
longer screws (2) and washers (3).
Attach chain to lifting device.
16.
NOTE
Assistant will help with steps 17 through 23.
17.
Lift swivel valve (4) high enough to permit access to hose connections.
18.
Remove two swing motor hoses (16) from coupling nuts (14).
19.
Remove two coupling nuts (14) and pipe nipples (15) from swivel valve plug (5).
20.
Disconnect drain hose (19) from swivel valve plug (5).
21.
Disconnect hoses (17) and (18) from swivel valve plug (5).
22.
Remove swivel valve (4) horn support cap (20).
23.
Remove chain from lifting device and remove two screws (2), washers (3), and chain from swivel
valve (4).
1.
Wrap male threads of swivel valve plug (5), hoses (7) and (8), winch drain hose (10), valve bank
drain hose (11), tee fitting (13), and bushing (12) with antiseize tape.
2.
Install two pipe nipples (15) on marked lower ports of swivel valve plug (5).
3.
Install chain on swivel valve (4) with two longer screws (2) and washers (3) and attach chain to
lifting device.
NOTE
Assistant will help with steps 3 through 10.
4.
Position swivel valve (4) over pivot post (24) above support cap (20).
5.
Connect two swing motor hoses (16) to pipe nipples (15) with coupling nuts (14).
6.
Connect pressure hose (17) and return hose (18) to swivel valve plug (5).
7.
Connect drain hose (19) to swivel valve plug (5).
8.
Position two plates (21) and washers (22) on support cap (20) and start screws (23) into support
cap (20). Do not tighten screws (23).
9.
Carefully lower swivel valve (4) and aline swivel plug (5) with support cap (20).
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