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Section 3: Adjustments
ZT60 & ZT72 Zero Turning Radius Mowers Riding Mowers Accu-Z
®
357-103M
8/26/08
Land Pride
Table of Contents
Refer to Figure 3-2:
If the mower creeps in neutral position, adjust pump
linkage rods, located under the seat, as follows:
1. Raise and block mower up to support drive wheels
off the floor.
!
WARNING
Make certain mower is secure when it is raised and placed on
the jack stands. The jack stands should not allow the mower to
move when the engine is running and the drive wheels are
rotating. Use only certified jack stands.
2. Position the control levers in the neutral position and
disengage blades.
3. Start engine and observe which way the wheels are
rotating.
Steering Control Linkage
Figure 3-2
4. If wheel is rotating forward:
a. Loosen jam nuts on the pump linkage rod.
b. Rotate rod to lengthen the steering control
linkage until the wheel comes to a stop.
c. Repeat for the opposite side if necessary.
d. When both wheels remain in neutral, tighten jam
nuts to lock pump linkage rod(s) in place.
5. If wheel is rotating in reverse:
a. Loosen jam nuts on pump linkage rod.
b. Rotaterod to shorten steering control linkage until
the wheel comes to a stop.
c. Repeat for the opposite side if necessary.
d. When both wheels remain in neutral, tighten jam
nuts to lock the pump linkage rod(s) in place.
6. Test again by moving control levers forward and
backward before returning them to neutral position.
The unit is ready for operation if the tires do not rotate
with the control levers in neutral.
7. Turn ignition switch off and place control levers in
park. Remove support blocking and safely lower
mower wheels to the floor.
23936
Pump Linkage Rod
Jam
Nuts
Control Lever Stops
The control lever stops are designed to do two things:
First, and most important, they must keep the pumps
from bottoming out internally. Second, the stops may be
adjusted to help drive straight when the control levers are
pushed forward against the stops.
Steering Control Linkage
Figure 3-3
Adjust Lever Stops to Protect Pumps
Refer to Figure 3-3:
This adjustment should be made first and must be made
with mower engine NOT RUNNING. Check one side at a
time to make sure each control lever is against the
adjustable stop before the pump bottoms out internally.
1. Gently and slowly move one of the control levers
forward and feel if there is some resistance on the
lever before the control lever hits the stop. If you
sense the pump linkage rod is stopping forward
motion of the control lever:
a. Loosen the jam nut on the adjustable stop.
b. Turn the stop (set screw) inward to stop the
control lever slightly before the pump bottoms out.
c. When adjustment is correct, lock the adjustable
stop in place by re-tightening the jam nut.
2. Do this for each side.
Adjust Lever Stops to Driving Straight
Refer to Figure 3-3:
1. Determine which drive tire is rotating too fast when
both control levers are against the stops.
2. Stop the mower and loosen the lock nut on the side
which is rotating too fast. Turn the stop (set screw)
inward to stop the control lever sooner.
3. Tighten the lock nut on the stop and test again.
4. Repeat this procedure until unit drives straight.
23930
Control Lever
Adjustable Stops
NOTE: Variables such as oil temperature, pump
efficiency, motor efficiency, tire pressure, etc., may
effect the consistency to drive straight while pressing
the control levers against the stops.