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Groundsmaster 5900/5910 Hydraulic SystemPage 4 -- 125
7. If hydraulic fittings are to be removed from manifold,
mark fitting orientation to allow correct assembly. Re-
move fittings from manifold and discard O--rings.
Installation (Fig. 90)
1. If fittings were removed from manifold:
A. Lubricate new O--rings with clean hydraulic oil.
Install lubricated O--rings on fittings.
IMPORTANT: When installing the orifice in man-
ifold port C1--OR1 or C5--OR2, make sure that ori-
fice is flat in the base of the port cavity. Manifold
damage is possible if the orifice is cocked in the
cavity.
B. Iffitting wasremoved from manifold port C1--OR1
or C5--OR2, place orifice in port before installing fit-
ting.
C. Install fittings intomanifold openings using marks
made during the removal process to properly orien-
tate fittings.
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.
2. Install lift control manifold to the frame using Figure
90 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. Using labels placed during removal, correctly con-
nect wire harness connectors to solenoids on lift control
manifold.
5. Make sure hydraulic tankis full. Add correct oilifnec-
essary.
6. SecureRH side panel to machine.Lower andsecure
hood.
1. Dust cap
2. Quick fitting (3 used)
3. O--ring
4. O--ring
5. 90
o
fitting
6. O--ring
7. O--ring
8. Straight fitting
9. O--ring
10. O--ring
11. 90
o
fitting (4 used)
12. O--ring
13. Orifice disc (2 used)
14. O--ring
15. Straight fitting (2 used)
16. O--ring
Figure 91
2
6
7
1
3
5
4
8
9
10
11
12
13
14
15
16
50 ft--lb
(67 N--m)
20 ft--lb
(27 N--m)
75 ft--lb
(101 N--m)
UP
Hydraulic
System