Lift Control Manifold Service (GM 4700--D)
20
ft--lb
(27.1
N--m)
25
(33.9
ft--lb
N--m)
5 ft--lb
(6.8 N--m)
4
7
20
ft--lb
11
(27.1 N--m)
5
10
2
1
20
(27.1
ft--lb
N--m)
3
5 ft--lb
(6.8 N--m)
8
10
12
25
(33.9
ft--lb
N--m)
6
UP
11
20
(27.1
ft--lb
N--m)
8
6
10
12
11
12
25 ft--lb
9
(33.9
N--m)
11
10
12
5 ft--lb
(6.8 N--m)
5 ft--lb
(6.8 N--m)
20
(27.1
ft--lb
N--m)
Figure 101
1.
2.
3.
4.
Manifold body
Nut
5.
Proportional relief valve (port TS)
Solenoid valve (ports S2, S3, S7, S8)
Solenoid valve (port S1)
9. Solenoid valve (port S5)
10. Solenoid coil (5 used)
11. Solenoid coil (5 used)
12. Nut
6.
7.
8.
Zero leak plug (#4)
Relief valve (port R1)
Solenoid valve (ports S4, S6, S9)
NOTE: The ports on the manifold are marked for easy
identification of components (e.g. P is the gear pump
connection port and R1 is the relief valve port). See Hy-
draulic Schematics in Chapter 9 -- Foldout Drawings to
identify the function of the hydraulic lines and cartridge
valves at each port location.
NOTE: The lift control manifold uses several zero leak
plugs. These plugs have a tapered sealing surface on
theplugheadthatisdesigned toresistvibrationinduced
plugloosening.ThezeroleakplugsalsohaveanO--ring
as a secondary seal. If zero leak plug removal is neces-
sary, lightly rap the plug head using a punch and ham-
mer before using an allen wrench to remove the plug:
the impact will allow plug removal with less chance of
damage to the socket head of the plug.
Hydraulic System
Page 4 -- 122
Groundsmaster 4500--D/4700--D
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