HUSTLER Super Z HD, General Service Manual, Page: 14 / 50

REV C 4-2 117592
Repeat for the opposite side if necessary
9. When both wheels remain in neutral, tighten the jam nuts
to lock the turnbuckle in place.
10. Test again by moving the steering control levers forward
and backward before returning them to the neutral
position. If the tires are in neutral, the unit is now ready
for operation.
11. After adjusting for neutral it may be necessary to re-
adjust the control lever stop and/or damper.
12. IMPORTANT: With the engine off, disconnect the two
female spade connectors from each other (from step #3)
and reconnect them to the seat switch. This must be
completed so that the safety circuit is functioning
properly. Figure 4-1 & Figure 4-2
13. Check to make sure all tools or obstructions are removed
from under the mower.
14. Raise the rear of the mower and remove the jack stands.
Lower the mower.
15. Lower and secure the seat platform.
Control lever stops
The internal steering control lever stops (see Figure 4-5) are
designed to keep the pumps from bottoming out internally. The
external steering control lever stops (Figure 4-6) may be
adjusted to help the mower drive straight when the steering
control levers are pushed forward against the stops.
To keep the pumps from bottoming out internally use
the following procedure:
This adjustment is only required if the hydraulic pump(s)
have been replaced.
1. To make the first adjustment the mower engine must not
be running.
2. Check to make sure the steering control levers are against
the stops before the pumps are bottomed out internally.
3. To do this, gently and slowly move the steering control
levers forward and feel if there is some resistance on the
pump lever before the control levers hit the stops. Check
one side at a time. If you sense that the pump arms are
stopping the forward motion of the control arms, loosen
the jam nut on the adjustable stop of the corresponding
side, turn the stop (set screw) inward to stop the steering
control levers slightly before the pump bottoms out. Lock
in place when the adjustment is correct by re-tightening
the jam nut. Do this for each side.
To adjust the stops for driving straight when steering
control levers are against the stops during operation:
1. Determine which drive tire is rotating too fast when both
steering control levers are against the stops in the control
Figure 4-3
Figure 4-4
Park
brake
slot
Control
levers
Steering control levers in neutral position
Jam nut
Pump
arm
Pump linkage rod
WARNING
Do not operate the mower without plugging the mower’s
wiring harness into the seat switch. This switch is an
important part of the safety start interlock system. Serious
injury can result if the seat switch is not plugged into the
mower’s wiring harness.
WARNING
Never operate the mower with a non-functioning seat
switch. Always reconnect the seat switch to the mower
harness.
WARNING
Pump damage will occur if these stops are set incor-
rectly.