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LOOSEN HERE
(LEFT-HAND THREAD)
TURN HERE
TO ADJUST
LOOSEN HERE
(RIGHT-HAND THREAD)
LEFT-HAND SIDE OF UNIT
RIGHT-HAND SIDE OF UNIT
TURN RH TRACKING
ADJUSTMENT KNOB
(DO NOT LOOSEN AN
Y
NUTS ON RH SIDE)
G0926
a) This adjustment must be made with the drive wheels turning. First raise the
frame and block up so that drive wheels can rotate freely.
b) Remove the electrical connection from the seat safety switch, located
directly to the left of the seat switch assembly beside the hydraulic oil
reservoir.
Temporarily install a jumper wire across the terminals in the connector of the
wiring harness.
c) Run the unit at least 5 minutes with the drive levers at full forward speed to
bring hydraulic system oil up to operating temperature.
d) Unhook seat latch and tilt seat forward.
e) Loosen lock nuts from the ball joints at each end of the LH pump control
linkage. (See Figure 13).
NOTE: The nut to the front of the unit on the LH rod has left-hand threads.
FIGURE 13
f) Start engine. Brake must be engaged and motion control levers out to
start engine. Operator does not have to be in the seat because of the
jumper wire being used. Run engine at full throttle and release brake.
g) The reverse indicator spring must be correct before the following
adjustments can be made. See Section 4.2.12.
NOTE: The motion control lever needs to be in neutral while making
any necessary adjustments.
The left rod assembly controls the left wheel and the right rod assembly
controls the right wheel.
h) Bring the LH motion control lever into the neutral position. Adjust LH pump
control rod length by rotating the double nuts on the rod in the appropriate
direction until the wheels slightly creep in reverse. (See Figure 13) Move
the motion control lever to the reverse position and while applying slight
pressure to the lever allow the reverse indicator spring to bring the levers
back to neutral. The wheel must stop turning or slightly creep in reverse.
When adjustment is complete, tighten lock nuts onto ball joints.
i) Bring the RH motion control lever into the neutral position. Adjust the RH
pump control rod length by rotating the tracking adjustment knob in the
appropriate direction until the wheels slightly creep in reverse. Move the
motion control lever to the reverse position and while applying slight
pressure to the lever allow the reverse indicator spring to bring the levers
back to neutral. The wheel must stop turning or slightly creep in reverse.
See Figure 13.
j) Shut off unit. Remove jumper wire from wire harness connector and plug
connector into seat switch.