Toro Groundsmaster 3280-D Service Manual page 222

Removing the Lift Control Valve (continued)
Installing the Lift Control Valve
Hydraulic System: Service and Repairs
A flow control orifice (item 5 in
hydraulic fitting on the lift control valve. If the fitting is removed
from the manifold and a flow control orifice is in the manifold block,
ensure that you remove the orifice and label its position for assembly
purposes.
12. If necessary, remove the hydraulic fittings from the manifold block (item 1 in
Figure 109), and discard the O-rings.
13. Locate, retrieve, and label the orifice from the manifold block (if equipped).
1. If the hydraulic fittings were removed from the manifold block (item 1 in
Figure 109), do the following:
A. Lubricate new O-rings with clean hydraulic fluid, install the lubricated
O-rings onto the fittings.
When installing the flow control orifice in the manifold block,
ensure that the flow control orifice is flat in the base of the fitting
cavity. Letting the flow control orifice stay cocked in the cavity
can damage the manifold block.
B. For the manifold port with orifice, install the flow control orifice in the
block with the orifice slot facing out.
C. Install the fittings into the manifold block. Torque the fittings to the torque
values identified in
2. Position the lift control valve to the machine frame and install the 2 bolts (item
6 in Figure 108), 2 lock washers, and 2 flat washers but do not fully tighten.
3. Remove the caps and plugs from the hydraulic lines and fittings.
4. Lubricate and install new O-rings on the manifold fittings. Use the labels that
you attached during removal, correctly connect the hydraulic lines to the
fittings and tighten all the connections; refer to
and Tube (O-Ring Face Seal Fitting) (page
5. Tighten the 2 bolts to secure the lift control valve 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 block.
7. Install the fuel tank; refer to
8. Install the operator seat; refer to
9. Check the hydraulic-fluid level in the hydraulic reservoir (front axle) and add
correct quantity of fluid if necessary; refer to the Operator's Manual.
10. Operate the machine functions slowly until air is out of system; refer to
Charging the Hydraulic System (page
IMPORTANT
Figure 109) is placed below the
IMPORTANT
Figure 109.
Installing the Fuel Tank (page
Installing the Operator Seat (page
5–85).
Page 5–138
Installing the Hydraulic Hose
5–9).
4–17).
Groundsmaster ®
05138SL Rev B
7–20).
3280-D/3320