7.
mark fitting orientation to allow correct assembly. Re-
move fittings from manifold and discard O--rings.
If hydraulic fittings are to be removed from manifold,
UP
1
20
(27
ft--lb
N--m)
2
Installation (Fig. 90)
50
(67
ft--lb
N--m)
1.
If fittings were removed from manifold:
3
A. Lubricate new O--rings with clean hydraulic oil.
Install lubricated O--rings on fittings.
16
15
14
IMPORTANT: When installing the orifice in man-
ifoldportC1--OR1orC5--OR2,makesurethatori-
fice is flat in the base of the port cavity. Manifold
damage is possible if the orifice is cocked in the
cavity.
4
5
6
10
11
12
13
B. IffittingwasremovedfrommanifoldportC1--OR1
or C5--OR2, place orifice in port before installing fit-
ting.
7
8
75
ft--lb
9
(101 N--m)
C. Installfittingsintomanifold openings usingmarks
made during the removal process to properly orien-
tate fittings.
Figure 91
1.
Dust cap
9.
O--ring
2.
3.
4.
5.
6.
7.
8.
Quick fitting (3 used)
O--ring
10. O--ring
11. 90o fitting (4 used)
12. O--ring
D. Refer to Figure 91 for straight fitting installation
torque. For information on tightening procedures for
adjustable fittings, see Hydraulic Fitting Installation
in the General Information section of this chapter.
O--ring
90o fitting
13. Orifice disc (2 used)
14. O--ring
15. Straight fitting (2 used)
16. O--ring
O--ring
O--ring
Straight fitting
2.
90
Install lift control manifold to the frame using Figure
as guide. Torque the four (4) flange head screws that
secure manifold to frame from 106 to 159 in--lb (12.0 to
17.9
N--m).
3.
Remove caps and plugs from fittings and hoses.
Properly connect hydraulic lines to manifold (see Hy-
draulic Hose and Tube Installation in the General Infor-
mation section of this chapter).
4.
nect wire harness connectors to solenoids on lift control
manifold.
Using labels placed during removal, correctly con-
5.
Makesurehydraulic tankisfull.Addcorrectoilifnec-
essary.
6.
SecureRHsidepaneltomachine.Lower andsecure
hood.
Groundsmaster 5900/5910
Page 4 -- 125
Hydraulic System
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