Exmark Lazer Z SX Diesel Models 4500-501 Rev A - Manual (Page 43)

Maintenance
wheel must stop turning or slightly creep in
reverse (Figure 22).
Figure 22
Left-Hand Side of Unit
1. Turn LH tracking adjustment knob. (Do Not loosen any
nuts on LH side)
10. Shut off unit. Remove jumper wire from wire
harness connector and plug connector into seat
switch.
Motion Control Damper
Adjustment
The top damper mounting bolt can be adjusted to
obtain a more desired motion control lever resistance.
See Figure 23 for mounting options.
Figure 23
1. Motion control bracket
2. Least resistance (softest feel)
3. Medium resistance (medium feel)
4. Most resistance (firmest feel)
5. Torque nyloc nut to 200 in-lb (16.7 ft-lb). Bolt must
protrude past end of nyloc nut after torque.
6. Damper
7. Damper must move freely on bolt.
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 washers are
reinstalled as shown in Figure 24.
Figure 24
1. Spring disc washers
Clutch Shim
Some later model year units have been built with
clutches that contain a brake shim. When the clutch
brake has worn to the point where the clutch no
longer engages consistently, the shim can be removed
to extend the clutch life.
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