Lift Control Manifold
RIGHT
FRONT
2
1
7
3
4
5
6
GROUNDSMASTER 4500--D SHOWN
Figure 97
1.
2.
3.
Lift control manifold
Filter mount bracket
Filter head
4.
5.
Hydraulic oil filter
Valve mount bracket
6.
7.
Flange head screw (2 used)
Deck control manifold
NOTE: Theliftcontrol manifolds usedonGroundsmas-
ter 4500--D and 4700--D machines are different but they
mounttothemachineinthesamelocation.TheGround-
smaster 4500--D control manifolds are shown in Figure
97.
IMPORTANT: To prevent unexpected deck lower-
ing, make sure that cutting decks are fully lowered
before loosening hydraulic lines from lift manifold.
2.
Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
Removal (Fig. 97)
NOTE: The ports on the manifold are marked for easy
identification of components. Example: P1 is the gear
pump connection port (see Hydraulic Schematics in
Chapter 9 -- Foldout Drawings to identify the function of
the hydraulic lines and cartridge valves at each port).
3. Unlatch and raise hood.
4.
manifold removal, thoroughly clean exterior ofmanifold.
To prevent contamination of hydraulic system during
5.
Label wire harness electrical connectors that attach
to manifold solenoid coils. Disconnect wire harness
electrical connectors from the solenoid valve coils.
1.
decks, stop engine, apply parking brake and remove
key from the ignition switch.
Park machine on a level surface, lower cutting
Hydraulic System
Page 4 -- 118
Groundsmaster 4500--D/4700--D
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