Toro Groundsmaster 360 Service Manual page 230

Removing the Manifold (continued)
Installing the Manifold
Hydraulic System: Service and Repairs
Ensure that the QAS frame is fully lowered and supported before
loosening the hydraulic lines from the QAS hydraulic manifold.
If the frame is not supported as the hydraulic lines are loosened, the
QAS frame may drop unexpectedly.
3. Ensure that the QAS frame is not supported by the QAS lift cylinders so that
the frame will remain in position during control manifold service. If necessary,
support the QAS frame with solid blocks to prevent it from moving.
Before opening the hydraulic system, operate all the hydraulic
controls to release system pressure and avoid injury from the
pressurized hydraulic fluid; refer to
Hydraulic System (page
4. Read the General Precautions for Removing and Installing the Hydraulic
System Components (page
Note: The QAS frame assembly can be removed from the machine to get
easier access to the QAS control manifolds. Reverse the QAS installation
procedure to remove the QAS frame assembly from the machine; refer to
QAS Installation Instructions.
5. Locate the QAS control manifold that you need to service.
6. Clean the hydraulic hose and tube ends before disconnecting the hydraulic
lines from the control manifold.
7. For assembly purposes, label all of the hydraulic and electrical connections.
8. Disconnect the hydraulic lines from the control manifold.
9. Install clean caps or plugs on the disconnected hydraulic lines and fittings to
prevent contamination.
10. Disconnect the wire harness connector(s) from the solenoid coil(s) on the
manifold.
11. Support the manifold to prevent it from falling.
12. Remove the fasteners that secure the manifold to the QAS frame
156), and remove the manifold from the machine.
13. If the hydraulic fittings are to be removed from the control manifold, mark the
fitting orientation for assembly purposes. Remove the fittings from manifold
and discard the O-rings from the fittings.
1. If the hydraulic fittings were removed from the control manifold, lubricate the
new O-rings with clean hydraulic fluid, position the O-rings to the fittings, and
install the fittings into the manifold ports; refer to
Fittings (SAE Straight Thread O-Ring Fitting into the Component Port) (page
4–9).
2. Position the control manifold to the machine and secure the control manifold
to the QAS frame with the removed fasteners.
WARNING
CAUTION
Releasing Pressure from the
4–5).
4–68).
Page 4–172
(Figure
Installing the Hydraulic
Groundsmaster 360
16225SL Rev C