Toro 04384 Service Manual page 95

Piston Pump Removal (Fig. 40)
1. Park machine on a level surface, engage parking
brake, lower cutting units and stop engine. Remove key
from the ignition switch.
CAUTION
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components.
2. Remove muffler to allow pump removal (Fig. 43). Re-
fer to Exhaust System in the Service and Repairs sec-
tion of Chapter 3 -- Diesel Engine for additional
information on muffler removal.
3. Disconnect the traction control cable ball joint and
jam nuts from the neutral arm. Position traction cable
away from the pump assembly.
4. Thoroughly clean hydraulic hose ends and fittings on
gear and piston (traction) pumps to prevent hydraulic
system contamination.
5. Label all hydraulic hose connections on gear and
piston pumps for assembly purposes.
6. Clamp pump inlet hose (item 10) to prevent draining
the hydraulic reservoir.
7. Loosen hose clamp and remove inlet hose from the
gear pump.
8. Disconnect hydraulic hoses from fittings on pump
assembly. Allow hoses to drain into a suitable container.
Plug hoses and fittings to prevent contamination.
CAUTION
Support the piston pump when removing its sup-
porting fasteners to prevent it from falling and
causing personal injury.
9. Support pump assembly to prevent it from falling.
10.Remove two (2) cap screws (item 12) and flat wash-
ers (item 7) that secure pump assembly to bellhousing.
Separate pump assembly from the pump mount and re-
move from machine.
11. If necessary, remove coupler (item 8) from pump in-
put shaft. Locate and retrieve key (item 9).
12.Separate gear pump from the piston pump (see Gear
Pump in this section).
Greensmaster 3250--D
3
2
1. Piston pump
2. Traction cable
2
Remove plugs before
installing gear pump to
piston pump
1. Piston pump case drain
2
3
4
2
1. Muffler
2. Flat washer (6 used)
3. Lock nut (4 used)
Page 4 - - 63
4
1
Figure 41
3. Jam nut (2 used)
4. Cable ball joint
1
Figure 42
2. Gear pump suction port
1
2
3
5
Figure 43
4. Muffler bracket
5. Cap screw (2 used)
Hydraulic System