Toro Groundsmaster 4300-D Service Manual page 203

Removing the Lift Control Manifold (continued)
Installing the Lift Control Manifold
Groundsmaster ® 4300-D
16226SL Rev C
7. For assembly purposes, label all the solenoid coil wire harness leads.
Disconnect the wire harness leads from the solenoid coils on the manifold.
8. Remove the 2 flange-head screws that secure the manifold to the machine
frame.
9. Remove the lift control manifold from the machine.
A flow control orifice is placed below several hydraulic fittings on
the lift control manifold
different orifice sizes. If the fittings are removed from the manifold
and an orifice is in the manifold port, ensure that you remove the
orifice and label its position for assembly purposes.
10. If necessary, remove the hydraulic fittings from the manifold
and discard the O-rings.
11. Locate, retrieve, and label the orifice from the manifold port (if equipped).
1. If the hydraulic fittings were removed from the lift control manifold
109), do the following:
A. Lubricate new O-rings with clean hydraulic fluid, install the lubricated
O-rings onto the fittings.
When installing the orifice in the manifold, ensure that the orifice
is flat in the base of the fitting cavity. Letting the orifice stay
cocked in the cavity can damage the manifold.
B. For the manifold ports with orifice, install correct orifice in the port with
the orifice slot facing out.
C. Install the fittings into the manifold. Torque the fittings to the torque
values identified in
2. Position the lift control manifold to frame. Install the 2 flange-head screws
but do not fully tighten.
3. Remove the caps and plugs from the hydraulic lines and fittings.
4. Lubricate and install new O-ring(s) on the manifold fittings. Correctly connect
the hydraulic hoses and tubes to the hydraulic manifold fittings and tighten
all the connections; refer to
Face Seal Fitting) (page
5. Tighten the 2 flange-head screws to secure the lift control manifold to the
frame.
6. Use the labels that you attached during removal to connect the wire harness
leads to the solenoid coils on the manifold.
7. Check the hydraulic-fluid level in the hydraulic tank and add correct quantity
of fluid if necessary; refer to the Operator's Manual.
8. Operate the machine functions slowly until air is out of system; refer to
Charging the Hydraulic System (page
IMPORTANT
(Figure 109). The lift control manifold uses 2
IMPORTANT
Figure 109.
Installing the Hydraulic Hose and Tube (O-Ring
4–9).
4–94).
Page 4–141
(Figure
(Figure
Hydraulic System: Service and Repairs
109),