Toro Groundsmaster 360 Service Manual page 195

Removing the Gear Pump
Installing the Gear Pump
Groundsmaster 360
16225SL Rev C
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
1. Park the machine on a level surface, lower the cutting deck, shut off the
engine, set the parking brake, and remove the key from the key switch.
2. Raise and support the operator seat.
3. Drain the hydraulic fluid from the hydraulic tank.
4. Clean the hydraulic hose ends and fittings on the gear pump and hydraulic
tank to prevent contaminants from entering into the system.
5. For assembly purposes, label the hydraulic hoses and tubes that are
connected to the fittings on the gear pump.
6. Disconnect the hydraulic hoses from the fittings on the gear pump. Allow the
hoses to drain into a suitable container.
7. Install clean caps or plugs in the hose and fitting openings to prevent system
contamination.
8. Support the gear pump to prevent it from falling during removal.
9. Remove the 2 bolts (item 12 in
washers that secure the gear pump to the transmission, and remove the
gear pump from the transmission.
10. Remove and discard the O-ring (item 3 in
11. Locate and remove the spline coupler from the transmission or gear pump
shaft.
12. If the hydraulic fittings are to be removed from the gear pump, mark the fitting
orientation for assembly purposes. Remove the fittings from the gear pump
as necessary and discard the O-rings from the fittings.
1. If the hydraulic fittings were removed from the pump, lubricate and install
new O-rings to the fittings. Install the fittings into the gear pump ports; refer
to Installing the Hydraulic Fittings (SAE Straight Thread O-Ring Fitting into
the Component Port) (page
2. Slide the spline coupler onto the transmission shaft. Lubricate the O-ring
(item 3 in Figure 136) with grease and install the O-ring onto the flange of
the gear pump.
Position the gear pump to the transmission so that the gear pump
suction port is facing up.
3. Position the gear pump to the transmission and secure the pump with the 2
bolts, 2 lock washers, and 2 flat washers.
4. Remove the caps or plugs that were installed to the hydraulic hoses and
fittings during the removal process.
CAUTION
Releasing Pressure from the
4–5).
Figure 136), 2 lock washers, and 2 flat
Figure
4–9).
IMPORTANT
Page 4–137
136).
Hydraulic System: Service and Repairs