Exmark ARX481CKA30000, Operator'S Manual

Page: 35 / 48

Maintenance
Figure 14
1. Park brake switch
bracket 2. 1/8 inch (3.2 mm) gap
6. If adjustment is required, loosen the bolt holding
the park brake switch bracket and adjust the
distance between the park brake switch bracket
and the hydro brake arm to be 1/8 inch.
7. Tighten the bolt holding the park brake bracket.
Motion Control Linkage
Adjustment
1. Park the machine on a level surface.
2. Shut off engine and wait for all moving parts to
stop.
3. Push the control levers all the way forward to the
front reference bar.
• If the control levers contact the reference
bar, allow the control levers to return to
neutral. Remove the spring clevis pin on the
turnbuckle of the motion control linkage.
Rotate the turnbuckle counterclockwise (as
viewed from the top of the machine). Reinstall
the spring clevis pin and move the control
lever forward. Repeat this step until there
is a gap between the control lever and the
front reference bar. Once the gap is achieved,
proceed with step 4.
Figure 15
1. Spring clevis pin
2. Turnbuckle
• If the control levers do not contact the
reference bar, then proceed to step4.
4. Allow the control levers to return to neutral.
Remove the spring clevis pin on the turnbuckle
of the motion control linkage. Rotate the
turnbuckle clockwise (as viewed from the top of
the machine). Reinstall the spring clevis pin and
move the control lever forward. Repeat this step
until there is minimal gap or contact between the
control lever and the front reference bar.
5. Remove the spring clevis pin, rotate the
turnbuckle clockwise one more full turn.
6. Reinstall the spring clevis pin.
7. Repeat steps 3 through 6 for other motion control
linkage.
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 16.
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