Seat Adjustment; Ground Speed Control Lever Adjustment; Speed Balancing Adjustment - Ferris IS600Z Series Operator's Manual

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2. Wedge a wooden block (D) between the mower blade
and the mower deck housing to keep the mower blade
from turning and torque the blade mounting bolt to 120 ft.
lbs (163 Nm).

Seat Adjustment

The seat can be adjusted forward and back. Move the lever
(A, Figure 38) towards the left, position the seat as desired,
and release the lever to lock the seat into position.
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Ground Speed Control Lever Adjustment

The control levers can be adjusted in three ways. The
alignment of the control levers, the placement of the control
levers (how close the ends are to one another), and the
height of the control levers can be adjusted.
To Adjust the Control Lever Alignment
Loosen the mount bolts (A, Figure 39) and pivot the control
lever(s) (C) to align with each other.
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To Adjust the Control Lever Placement
Loosen the jam nuts and adjust the placement bolt (B) in or
out to properly adjust the control lever end spacing.
To Adjust the Control Lever Height
Remove the mounting hardware and position the control lever
either up or down from its original position. You will need to
adjust the control lever alignment as described above.

Speed Balancing Adjustment

If the unit drifts to the right or left when the ground speed
control levers are in the maximum forward position, the top
speed of each of these control levers can be balanced by
turning the adjustment bolt(s) (A, Figure 40). Only adjust the
speed of the wheel that is traveling faster.
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To Reduce the Speed of the Faster Wheel
1. Loosen the securing nut (B).
2. Turn the top speed adjustment bolt counter-clockwise to
reduce the speed.
3. Tighten the securing nut when adjustment is complete.
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