Motion Control Damper Adjustment; Caster Pivot Bearings Pre-Load Adjustment - Exmark LAZER Z Series Operator's Manual

5. Loosen lock nuts from the ball joints at each end
of the pump control linkage (Figure 53).
Right-Hand Side of Unit
1. Turn here to adjust
6. 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.
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.
7. Bring the motion control lever into the neutral
position. Adjust RH pump control rod length
by rotating the double nuts on the rod 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. When adjustment is complete, tighten
lock nuts onto ball joints. Repeat for LH motion
control lever.
8. Shut off unit. Remove jumper wire from wire
harness connector and plug connector into seat
switch.
Figure 53
2. Loosen here (right-hand
thread)
Motion Control Damper
Adjustment
The top damper mounting bolt can be adjusted to
obtain a more desired motion control lever resistance.
See Figure 54 for mounting options.
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RH Motion Control Shown
1. Torque nyloc nut to 200 in-lb (16.7 ft-lb). Bolt must
protrude past end of nyloc nut after torque. A T-40 Torx
bit will be necessary to hold the stud from turning.
2. Most resistance (firmest feel)
3. Damper
4. Medium resistance (medium feel)
5. Least resistance (softest feel)
Caster Pivot Bearings
Pre-Load Adjustment
Remove dust cap from caster and tighten nyloc nut
until washers are flat and back off 1/4 of a turn
to properly set the pre-load on the bearings. If
disassembled, make sure the spring disc washers are
reinstalled as shown in Figure 55.
63
Maintenance
Figure 54
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