78Service Manual – SC5000 14 - Wheel System, Non-Traction
Removal and Installation
Rear Wheel Bearings and Seal
The rear wheel bearings are sealed and do not require
lubrication. Severely worn bearings may be detected
by wheel wobble or grinding sounds. A less obvious
symptom of bearing failure is when the wheel easily
freewheels when spun by hand with the machine
elevated off the ground. A good sealed bearing should
have a slight but smooth resistance to freewheel.
The wheel bearings are pressed into the wheel hub. To
complete this procedure, you will need a bearing puller
and a press. There are many different types of bearing
pullers that will operate on the internal bore of a bearing
(35mm in this case). As one example, a pilot bearing
puller is shown to the right.
WARNING: Never work under a machine without safety
stands or blocking to support the machine.
− Never jack the rear of the machine without
rst stabilizing the front of the machine.
1. To reduce the weight of the machine, drain
both the recovery and solution tanks.
2. Using the lifting point (A) located on the
right anti-tip hoop, raise the front of the
machine, and place support blocks (C) under
both anti-tip hoops (B).
• Failure to stabilize the front of the
machine can result in the machine being
unstable when the rear end is lifted.
Note: The machine is shown with
the recovery tank and squeegee
removed for clarity. It is not
necessary to remove them for this
procedure.
3. Using the left side of the chassis, as close to
the center as possible (D), raise the rear of
the machine, and place blocks (F) under the
tie-down eyelets (E).
B
C
A
E
F
D
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