21Service Manual – SC900 20 - Wheel System, Traction
Wheels
WARNING: To avoid unexpected movement, disconnect the battery connector before servicing
the machine.
− Never work under the machine without safety stands or blocking to support the
machine.
− To avoid instability of the lifted machine, block the rear (caster) wheels so that the
weight of the machine is not on the caster wheels, which can pivot unexpectedly.
1. Drain both the recovery and solution tanks
to reduce the weight of the machine.
2. Turn off the key and disconnect the
batteries.
3. Slightly raise the rear of the machine, and
place rigid blocking below the frame so the
caster wheels are slightly off the ground.
4. Raise the front of the machine, and place
rigid blocks under the lifting points.
5. Remove the three lug nuts that secure the
wheel to the transaxle, and remove the
wheel.
Lift Points
Lift Points
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