Setting The Hydraulic Pump Neutral - Toro 74247 Operator's Manual

Setting 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.
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.
This adjustment must be made with the drive wheels
turning.
1. Raise the frame and use jack stands to hold up the
machine so drive wheels can rotate freely.
2. Unlatch the seat, tilt the seat forward and disconnect
electrical connector from the seat safety switch.
3. Temporarily install a jumper wire across terminals in
the wiring harness connector.
4. Slide the seat forward, disconnect the prop rod and tilt
the seat fully forward.
Setting the Right–hand Hydraulic Pump
Neutral
1. Start the engine, open the throttle 1/2 way and release
parking brake. Refer to Starting and Stopping the
Engine, page 19.
Note: The motion control lever must be in neutral while
making any adjustments.
2. Adjust the pump rod length by rotating the knob, in the
appropriate direction, until the wheel is still or slightly
creeping in reverse (Fig. 55).
3. Move the motion control lever forward and reverse,
then back to neutral. The wheel must stop turning or
slightly creep in reverse.
4. Open the throttle to fast. Make sure wheel remains
stopped or slightly creeps in reverse, adjust if
necessary.
1
2
Figure 55
1. Tracking knob
2. Pump rod
Setting the Left–hand Hydraulic Pump
Neutral
1. Loosen the locknuts at the ball joints on pump control
rod (Fig. 54).
2. Start the engine, open throttle 1/2 way and release
parking brake. Refer to Starting and Stopping the
Engine, page 19.
Note: The motion control lever must be in neutral while
making any adjustments.
Note: The front nut on the pump rod has left–hand
threads.
3. Adjust the pump rod length by rotating double nuts on
rod, in the appropriate direction, until wheel is still or
slightly creeps in reverse (Fig. 54).
4. Move the motion control lever forward and reverse,
then back to neutral. The wheel must stop turning or
slightly creep in reverse.
5. Open the throttle to fast. Make sure the wheel remains
stopped or slightly creeps in reverse, re-adjust if
necessary.
6. Tighten the locknuts at the ball joints (Fig. 54).
41
4
3
m–6281
3. Adjustment bolt
4. Yoke