User Guide

9-13
333559_0806
WARNING: The adjustable steering rods are located near
the EZT integrated pump/motor fans. Make certain the
engine is not running when adjusting the steering rods. The
neutral adjustment for the control levers in the neutral
position is discussed in this section.
Control lever neutral adjustment
Before considering any adjustment, check the tire air pressure. Unequal
tire pressure will cause the tractor to drift to one side. Refer to tire pressure
information in the Maintenance section of this manual.
NOTE: Proper park brake adjustment must be completed before the
control lever neutral adjustment can be done.
Fine adjustment to the unit’s steering is made with the adjustable pump
linkage rods. Fig. 9-21
Neutral is properly adjusted when the control levers are in the park brake
position and the EZT transmissions do not “whine” .
If this occurs, the control linkage may be adjusted as follows:
1. Raise and block the tractor frame keeping the rear drive tires free
and clear of any obstructions so they are free to rotate. The engine
will be running and tires rotating during this operation.
WARNING: Never work under the machine or attachment
unless it is safely supported with jack stands. Make certain
machine is secure when it is raised and placed on the jack
stands. The jack stands should not allow the machine to
move when the engine is running and the drive wheels are
rotating. Use only certified jack stands. Use only
appropriate jack stands, with a minimum weight rating of
2000 pounds to block the unit up. Use in pairs only. Follow
the instructions supplied with the vehicle stands.
2. Remove the seat pan locknut as shown in Fig. 9-22 Tilt the seat
forward. Temporarily bypass the seat switch.
3. Loosen the front dampener ball stud nut as shown in Fig. 9-21. The
dampener will be adjusted and tightened after neutral is reset.
4. Staying clear of the rear drive tires, start the engine. If the EZT
transmissions whine, then the neutral setting needs to be re-adjusted.
In this operation you will need to adjust one side at a time. If either
side whines significantly, then the steering lever needs to be pushed
into the operating position, disengaging the brake. Most likely when
the brake is disengaged, the drive wheel will begin to rotate even
though the steering lever is in the neutral position.
5. Shut off the machine. Loosen the jam nuts on each end of the pump
control rod as shown in Figure 9-21.
6. Start the engine. Move the steering lever to just engage the brake
(neutral) slot and hold it in that position (Do not engage the steering
lever far enough to engage the brakes in the brake slot).
WARNING: This operation is extremely dangerous. Pay
close attention when adjusting the pump control rod so you
do not get your fingers, tools, or anything else close to the
EZT pump cooling fans.
7. While holding the steering lever position discussed in step 6,
carefully adjust the pump control rod until the rear wheel starts
turning forward. Now turn the pump control rod in the opposite
direction until the moment when the wheel just stops turning
forward. Turn the control rod another 1/2 turn in this direction.
Hold the pump rod in this position and actuate the parking brake
with steering lever. The EZT should not whine.
8. Hold the pump control rod still and turn off the engine.
9. Tighten the jam nuts on each end of the pump control rod. NOTE:
Do not let pump control rod turn while tightening the jam nuts.
10. Neutral is now set. Start the engine and actuate the brakes a few
times to confirm that the EZT does not whine when the park brake is
set.
11. Repeat for the other side.
12. The steering dampener now needs to be adjusted and tightened.
13. Reconnect the seat switch and make sure the seat switch is
operating properly per the following procedure:
A. The operator must be on the seat when testing the seat switch.
B. Set both control levers in the park brake position.
C. Start the engine and allow it to warm up to operating
temperature.
D. With the deck clutch switch down and the control levers in the
park brake position, slowly raise off of the seat. The engine
should continue to run.
E. With the deck clutch switch up and/or the control levers in the
neutral position, slowly raise off of the seat. The engine
should stop.
F. If the engine fails to stop when the deck clutch switch is up or
one or both of the control levers are not in the park brake
position and the operator is off the seat, check the function of
the seat switch. If the seat switch is not operating properly (is
not opening or closing) and if the cause can not be determined,
replace the seat switch.
If the problem can not be located, contact your Hustler Dealer.
WARNING: The safety interlock system should always
function per steps 4 and 5. If it does not function properly, it
should be corrected immediately. Do not operate machine
without properly functioning seat safety switch.
WARNING: Do not operate machine without a properly
functioning seat safety switch.
Steering dampener adjustment
The steering dampener is spring loaded to return the control levers to the
neutral position from the reverse position. This gives the operator a sense
of neutral during operation.
If the steering control lever does not return to neutral from reverse then
adjust as follows:
To set the steering dampeners in the correct operating position follow
these steps:
1. Shut engine off, place control levers in the park brake position,
disengage deck clutch, remove ignition switch key and disconnect
negative battery cable before doing any adjustments.
2. If you have not already done so, loosen the front ball stud that is
attached to the forward dampener socket. Fig. 9-21
Front dampener ball stud
Jam nut
Pump rod
adjuster assembly
Jam nut
Figure 9-21
Figure 9-22
Lock nut
Flat washer