97Service Manual – SC5000 20 - Drive System
Drive Tire
DELETE???
The drive tire consists of the urethane tire and the metal rim that it is attached to. The drive tire may be
replaced without removing the wheel motor assembly from the machine. Pressing the rim off the wheel
motor requires the tire pulling kit (56422174).
WARNING: This procedure requires working on an elevated machine. Make sure all safety
precautions are in place before beginning this procedure. Use appropriate lifting
points, jack stands, and wheel chocks. Make sure to disconnect the main battery
connector under the operator’s seat.
1. To reduce the weight of the machine, drain
both the recovery and solution tanks.
2. Chock both rear wheels to prevent the
machine from moving. Once the front wheel
is off the ground, there will be no machine
brake.
3. Disconnect the main battery connector under
the operator’s seat.
4. Lift the machine at the lifting point (A) until
the drive wheel is slightly off the ground,
and then place blocks (C) under the anti-tip
hoops (B).
Note: The drive hub screws may contain thread locking compound. The best method for releasing
locking compound is to apply mild heat to the screws. The compound begins to loosen up at
just over 150°F (65°C). If you need to apply heat, make sure to remove the plastic cover.
5. As necessary, apply a mild heat to the 4
screws (E) that secure the hub (D) to the
drive disk (G, shown later). It doesn’t take
a lot of heat nor high temperature. The
goal is just to warm the threads to around
150°F (65°C) to soften the thread locking
compound.
6.
7. While each screw is still warm from heating,
use a 6mm hex key to loosen the 4 screws
(E). A low-power impact driver may be
helpful, but use caution to not sheer the
screws or cam out the heads.
8. Using a 5mm hex key, remove the six screws
(F) that secure the drive hub to the wheel
rim. (The hub is lightly pressed to the drive
disk (G), and will come loose later.)
B
C
A
EF
D
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