Toro 74178 Operator's Manual page 36

7. Repeat on the opposite side of the unit.
1
2
7 3
Figure 46
1. Neutral lock position
2. Clevis pin in slot
3. Nut
4. Bolt
Adjusting the Hydraulic Pump Neutral
Note: Adjust the handle neutral first. That has to be correct
before the following adjustment can be made.
Danger
Mechanical or hydraulic jacks may fail to support
machine and cause a serious injury.
Use jack stand when supporting machine.
Do not use hydraulic jacks.
1. This adjustment must be made with the drive wheels
turning. First raise the frame and block it up so that the
drive wheels can rotate freely.
4
6
5
3 m–3800
5. Pump rod
6. Double nuts
7. Jam nut
36
Warning
Engine must be running so motion control
adjustment can be performed. Contact with
moving parts or hot surfaces may cause personal
injury.
Keep hands, feet, face, clothing and other body
parts away from rotating parts, muffler and other
hot surfaces.
2. Slide the seat forward, disconnect the prop rod, and tilt
the seat fully forward.
3. Disconnect the electrical connector from the seat safety
switch. Temporarily install a jumper wire across the
terminals in the wiring harness connector.
4. Loosen the locknut at the ball joint on the pump control
rod (Fig. 46).
5. Start the engine, open the throttle 1/2 way, and release
the parking brake; refer to Starting and Stopping the
Engine, page 18.
Note: The front nut of each rod has left-hand threads.
6. Adjust the pump rod length by rotating the double nuts
on the rod, in the appropriate direction, until the wheel
is still or slightly creeps in reverse (Fig. 46).
7. Move the motion control lever forward and reverse,
then back to neutral. The wheel must stop turning or
slightly creep in reverse.
Note: The motion control lever must be in neutral while
making any adjustments.
8. Open the throttle to fast. Make sure that the wheel
remains stopped or slightly creeps in reverse. Readjust
if necessary.
9. Repeat on the opposite side of the unit. Tighten the
locknuts against the ball joints.
Warning
Electrical system will not perform proper safety
shut off with jumper wire installed.
Remove jumper wire from wire harness
connector and plug connector into seat switch
when adjustment is completed.
Never operate this unit with jumper installed
and seat switch bypassed.
10. Shut off the unit. Remove the jumper wire from the
wire harness connector and plug the connector into the
seat switch.
11. Install the prop rod and lower the seat.