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Section 3: Adjustments
the same order they were removed without
tightening them.
c. Pivot upper control levers forward or backward to
fit operator's personal reach preference.
3. Verify that the control levers align with each other
when in neutral and then tighten bolts (#3) to the
correct torque.
Forward Travel Adjustment
Refer to Figure 3-5 on page 26:
"Reach Adjustment" instructions on page 26 were for
adjusting the upper control levers (#1) so that they would
be equally aligned while in neutral. However, with this
adjustment, the mower may want to steer slightly to the
right or left when pushing the levers equally forward.
Make the following adjustments if you prefer to have the
upper control levers equally aligned while in forward
travel position instead of neutral position:
1. While driving forward, make the necessary steering
correction required to make the unit go straight and
take careful notice of how the upper control levers
are positioned. (The distance one lever is ahead of
the other to make the mower travel straight.)
2. Stop the mower on a level surface, place control
levers in neutral, set park brake (ON), shut power off
and remove switch key.
3. You can either adjust the trailing lever forward by the
distance it was trailing or adjust the leading lever
back by the distance it was leading.
a. Loosen mounting bolts (#3) on the side to be
adjusted.
b. Reposition the lever forward or backward by the
distance it was trailing or leading.
c. Retighten bolts (#3) to the correct torque.
Example:
If the right control lever is one inch ahead of the left
control lever, stop the unit and either adjust the right
upper control lever back one inch or adjust the left
upper control lever forward one inch.
Seat Adjustment
Refer to Figure 3-5 on page 26:
The seat can be adjusted forward or rearward to a
suitable distance that is comfortable for operating the
deck lift pedal. Move seat adjustment latch (located
under the seat) to the left and then move the seat forward
or rearward to a suitable distance. Once adjusted, return
latch to the locked position.
The arm rest can be adjusted up or down to a suitable
arm rest height. Turn knobs located under the arms or
behind the seat back to raise and lower the arms.
The suspension seat (not shown) has a knob centered
under the seat and to the front for adjusting seat
suspension. Turn knob clockwise when supporting more
weight and counterclockwise when supporting less
weight.
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Ground Drive Belt Adjustment
The ground drive belt spring tension is preset at the
factory and does not need readjusting until the belt
stretches and wears. As the belt wears, the spring
tension may need adjusting.
Refer to Figure 3-6 & Figure 3-7:
Check spring length to verify if belt is tensioned correctly.
Installed spring length should be 5" +/- 1/4". Vary the
spring length by adjusting the length of eye bolt.
Eye Bolt (Adjust Length To
Vary Spring Tension)
Excessive belt tension may lead to premature damage to
belt and drive components and is also a safety hazard to
the operator and bystanders. Not enough belt tension
may also lead to premature belt damage due to
excessive belt slippage.
IMPORTANT: Do not over tension spring to
compensate for a badly worn belt or pulley.
ZT60i & ZT72i (S/N 748109-) Accu-Z
Ground Drive
Extension Spring
Ground Drive Belt Adjustment
Figure 3-6
Ground Drive Belt Adjustment
Figure 3-7
®
Zero Turn Mowers 357-398M
30098
30141
27
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