Wheels; Inspecting The General Condition; Removing The Drive Wheel - Otto Bock Xeno Service Manual

Properly reassemble all components upon completion of the work.

6.5 Wheels

CAUTION
Risk of injury due to worn or defective tyres. Replace wheels with PU tyres if the material is crack-
ing or damaged, or when the tread becomes worn down to such an extent that there is only 5 mm of
radius left on the outer edges of the tyre.
Replace the casing of pneumatic tyres if it is bald or shows signs of cracking or other damage.
The Xeno power wheelchair is propelled by two 14" drive wheels. Standard configuration for
steering is by means of two 9" front steering casters.

6.5.1 Inspecting the General Condition

INFORMATION
Direct sunlight/UV light causes the tyres to age prematurely. As a result, the tread surface hardens
and corner pieces break out of the tread.
INFORMATION
Avoid parking the wheelchair outdoors whenever possible. Regardless of wear and tear, the tyres
should be replaced every 2 years.
If the wheelchair is parked for an extended period of time or the tyres overheat (e.g. in the vicinity of
radiators or in case of exposure to strong sunlight behind glass), the tyres may become permanently
deformed. Therefore, sufficient clearance should always be maintained from sources of heat, and the
power wheelchair should be moved frequently or placed on blocks for storage.
Steps:
1. Verify the tyre condition in regards to tread, porosity and cracking.

6.5.2 Removing the drive wheel

NOTICE
Risk of damage due to improper preparation of maintenance tasks. Use suitable objects such as
wooden blocks to secure the power wheelchair against sliding or tipping. The drive wheels must rotate
freely.
Preparation:
❒ Turn off the control unit.
Tools:
❒ Allen wrench, size 5 mm
❒ Torque wrench
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