Toro Groundsmaster 360 Service Manual page 169

Manifold Removal (Fig. 143)
1. Remove attachment from QAS frame.
2. Park machine on a level surface and make sure that
QAS frame is fully lowered. Stop engine, engage park-
ing brake and remove key from the ignition switch.
WARNING
Make sure that QAS frame is fully lowered and
supported before loosening hydraulic lines from
QAS hydraulic manifold. If frame is not sup-
ported as hydraulic lines are loosened, QAS
frame may drop unexpectedly.
3. Make sure that QAS frame is not supported by the
QAS lift cylinders so frame will remain in position during
control manifold service. If necessary, support QAS
frame with solid blocks to prevent it from moving.
WARNING
Before disconnecting or performing any work on
the hydraulic system, all pressure in the system
must be relieved. See Relieving Hydraulic System
Pressure in the General Information section.
4. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of this section.
NOTE: QAS frame assembly can be removed from ma-
chine to allow easier access to QAS control manifolds.
Reverse QAS installation procedure to remove QAS
frame assembly from machine (refer to QAS Installation
Instructions).
5. Locate QAS control manifold that is to be serviced.
6. Thoroughly clean hydraulic hose and tube ends prior
to disconnecting hydraulic lines from the control man-
ifold. Label all hydraulic connections for assembly pur-
poses.
Groundsmaster 360
7. Disconnect hydraulic lines from control manifold.
8. Install clean caps or plugs on disconnected hydraulic
lines and fittings to prevent contamination.
9. Disconnect wire harness connector from solenoid
coil(s) on manifold.
10.Support manifold to prevent it from falling.
11. Using Figure 143 as a guide, remove fasteners that
secure manifold to QAS frame. Remove manifold from
machine.
12.If hydraulic fittings are to be removed from control
manifold, mark fitting orientation to allow correct assem-
bly. Remove hydraulic fittings from manifold as needed.
Discard fitting O--rings.
Manifold Installation (Fig. 143)
1. If hydraulic fittings were removed from control man-
ifold, lubricate new O--rings with clean hydraulic oil,
position O--rings to fittings and install fittings into man-
ifold ports (see Hydraulic Fitting Installation in the Gen-
eral Information section of this chapter).
2. Position control manifold to machine.
3. Secure control manifold to QAS frame with removed
fasteners.
4. Remove caps and plugs from hydraulic lines and fit-
tings.
5. Lubricate and install new O--rings on control man-
ifold fittings. Using labels placed during manifold remov-
al, correctly connect hydraulic hoses and tubes to
control manifold (see Hydraulic Hose and Tube Installa-
tion in the General Information section of this chapter).
6. Connect wire harness connector(s) to solenoid
coil(s) on manifold.
7. Check oil level in hydraulic reservoir and add correct
oil if necessary.
8. Follow Hydraulic System Start--up procedures (see
Hydraulic System Start--up in this section).
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