Toro Groundsmaster 4300-D Service Manual page 166

Removing the Hydraulic Pump Assembly (continued)
Installing the Hydraulic Pump Assembly
Hydraulic System: Service and Repairs
g193010
1. Traction pump
2. O-ring
3. Flat washer (2 each)
4. Lock washer (2 each)
5. Socket-head screw (2 each)
14. Separate the traction and gear pumps
A. Remove the 2 socket-head screws, 2 lock washers, and 2 flat washers
that secure the gear pump to the traction pump.
B. Remove the gear pump from the traction pump. Locate and discard the
O-ring from the pumps.
C. If necessary, remove the 2 locknuts that secure the pump support bracket
to the gear pump, and remove the bracket and 2 flat washers from the
gear pump.
15. If necessary, remove the hydraulic fittings from the pumps. Note the
orientation of the fittings for assembly purposes.
16. Remove and discard all the O-rings from the hydraulic hoses and fittings
that were removed.
1. If the hydraulic fittings were removed from the pumps, lubricate and install
new O-rings to the fittings. Install the fittings into the pumps; refer to
Installing the Hydraulic Fittings (SAE Straight Thread O-Ring Fitting into
the Component Port) (page
2. Assemble the traction and gear pumps
A. Lubricate and position new O-ring between the pumps.
B. Position the gear pump to the traction pump and secure with the 2
socket-head screws, 2 lock washers, and 2 flat washers.
C. If the pump support bracket was removed from the gear pump, install
the 2 flat washers and bracket to the gear pump and secure the pump
with the 2 locknuts.
Figure 87
6. Pump support bracket
7. Locknut (2 each)
8. Flat washer (2 each)
9. Gear pump
(Figure
4–11).
(Figure
Page 4–104
87) as follows:
87) as follows:
Groundsmaster
16226SL Rev C
® 4300-D