Drive Unit; Replacing The Drive Wheels; Replacing The Drive Wheel Splash Guard - Otto Bock B-Series Service Manual

4.9

Drive unit

4.9.1

Replacing the drive wheels

INFORMATION
When replacing the wheels, check the tyres on both sides for even and sufficient tread. Replace the tyres if ne-
cessary.
f Prerequisites:
Optional: Move the seat to the lowest seat height (see Seite 12).
Switch off the control unit and deactivate the main fuse (see Seite 12).
If necessary: Remove the legrests.
Jack up the wheelchair (see Seite 11).
f Tools: Allen wrench size 6; torque wrench with Allen insert size 6
Removing the drive wheel
1) Loosen and remove the 5 screws on the drive wheel (see Fig. 40, item 1).
2) Remove the drive wheel from the drive flange.
3) If necessary: Change the tyre (see Seite 41).
Installing the drive wheel
1) Place the drive wheel on the drive flange.
2) Insert the 5 screws into the drive wheel and firmly tighten them to 25 Nm in a crosswise sequence (see Fig. 40,
item 1).
40
4.9.2

Replacing the drive wheel splash guard

f Prerequisites:
Optional: Move the seat to the lowest seat height (see Seite 12).
Switch off the control unit and deactivate the main fuse (see Seite 12).
If necessary: Remove the legrests.
Jack up the wheelchair (see Seite 11).
f Tools: Allen wrench size 6; torque wrench with Allen insert size 6
Removing the drive wheel splash guard
1) Remove the drive wheel (see Seite 27).
2) Loosen and remove the 2 upper screws on the drive motor (see Fig. 41, item 1).
3) Remove the drive wheel splash guard (see Fig. 41, item 2).
4) Optional: Remove the control panel for the caster wheel swivel lock from the splash guard (see Fig. 41, item 3;
see Seite 36).
Installing the drive wheel splash guard
1) Optional: Attach the control panel for the caster wheel swivel lock to the splash guard (see Fig. 41, item 3; see
Seite 36).
2) Place the drive wheel splash guard on the drive wheel swing arm (see Fig. 41, item 2).
3) Insert the 2 upper screws in the drive motor and firmly tighten them to 25 Nm (see Fig. 41, item 1).
B-Series
Service work
Ottobock | 27