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4.11
Changing tyres
CAUTION
Improper tyre replacement
Injuries to the user due to incorrect installation, product damage
No person is permitted to sit in the wheelchair during tyre replacement.
Before removing a wheel, support the product so it cannot tip over.
Always replace the tyres in pairs. Two differently worn tyres affect the directional stability of the wheelchair.
Prerequisites:
Optional: Move the seat to the lowest seat height (see Page 15).
Switch off the control unit and deactivate the main fuse (see Page 15).
If necessary: Remove the legrests.
Jack up the wheelchair (see Page 14).
Tools: Allen wrench size 5, 6; torque wrench with Allen insert size 5, 6; Optional: Plastic tyre mounting levers;
inner tube repair kit
Removing the tyres
1) Remove the wheel (see Page 45/Page 57).
2) Optional for pneumatic tyres: Let all the air out of the tyre.
3) Loosen and remove the 5 screws on the inside of the rim (see Fig. 143/144/145).
4) Separate the 2 pieces of the rim (see Fig. 146).
5) Remove the tyre from the rim and replace if necessary.
6) Optional for pneumatic tyres: Pull the inner tube out of the casing and repair or replace if necessary.
Installing the tyres
1) Optional for pneumatic tyres:
2) Pull the tyre onto the rim. Optional for pneumatic tyres: Insert the valve of the inner tube into the notch in the
rim (see Fig. 143, item 1).
3) Join the 2 pieces of the rim. Precisely align the notches for the valve one on top of the other (see Fig. 143, item 1).
4)
5) Attach the wheel (see Page 45//Page 57).
143
145
490E75=0_C
144
146
Service work
/145).
Ottobock | 71
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