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Section 3: Adjustments
ZT60i & ZT72i (S/N 748110+) Accu-Z
®
Zero Turn Mowers 357-552M
Table of Contents
2/06/14
Steering Adjustments
The lower and upper steering levers may require
readjusting to make operating the mower more
comfortable.
Lower Control Lever
Refer to Figure 3-5:
The hydrostatic drive system is designed with spring
return pump arms (#5) that will return the lower steering
control levers (#2) to neutral when released from reverse
position. If control levers do not return to neutral position
when released from reverse position, adjust length of
pump linkage rods (#1) as follows:
!
WARNING
Make sure mower is turned (OFF) before making adjustments
to pump linkage rods.
1. Push blade engagement switch to (OFF) and turn
ignition switch (OFF).
2. Position control levers in neutral position as shown.
3. If needed, remove fan mounting hardware and
fan (#4) if jam nuts (#3) are not easily accessible.
4. Loosen jam nuts (#3) at both ends of linkage rod (#1)
by 5 or more full turns (approximately 1/4"). One jam
nut will be right-hand thread and the other will be
left-hand thread.
5. Using the flat area (#1) on the linkage rod, rotate rod
to lengthen or shorten it until lever arm (#2) aligns
with neutral parking slot.
6. Tighten jam nuts (#3) at both ends to lock linkage rod
in place.
7. Repeat steps 3 thru 6 for the other side.
8. If transaxle fans were removed, reinstall them and
tighten their hardware to the correct torque.
9. Start mower engine and test control lever alignment
by moving levers forward and backward before
returning them to neutral position. The pump linkage
rods (#1) are properly adjusted if the lower control
levers (#2) are aligned with neutral parking slots in
the mower housing when released.
NOTE: Step 3 is not required but may be done if
transaxle fan blades (#4) interfere with loosening
jam nuts (#3).
Steering Control Linkage
Figure 3-5
33775
Neutral
Parking Slot