Groundsmaster 4500--D/4700--D Hydraulic SystemPage 4 -- 123
WARNING
If lift manifold is attached to machine, make sure
that cutting decks are fully lowered before loos-
ening hydraulic lines, cartridge valves or plugs
from lift manifold. If decks are raised as compo-
nents are loosened, decks may drop unexpect-
edly.
For solenoid and control valve service procedures, see
4WD/2WDControl Manifold Service in this s ection. Re-
fer to Figures 101 and 102 for cartridge valve and plug
installation torque.
IMPORTANT: A flow control orifice is placed be-
neathseveralofthehydraulicfittingsontheliftcon-
trolmanifold(Fig.102).Theliftmanifoldusestwo(2)
differentorificesizes.Ifafittingisremovedfromthe
lift control manifold and an orifice is in the manifold
port, make sure to remove orifice and label its posi-
tion for assembly purposes. Also note location of
groove in orifice for assembly purposes.
IMPORTANT: When installing orifice in manifold
(Fig.102), makesure that orificeisflat inthe base of
the manifold port. Manifold damage is possible if
the orifice is cocked in the cavity.
1. Manifold body
2. Straight fitting (3 used)
3. Zero leak plug (#4)
4. Orifice (0.063)
5. Orifice (0.080)
6. O--ring
7. O--ring
Figure 102
4
6
3
2
1
5
2
3
3
UP
6
7
7
25 ft--lb
(33.9 N--m)
20 ft--lb
(27.1 N--m)
25 ft--lb
(33.9 N--m)
20 ft--lb
(27.1 N--m)
Hydraulic
System
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