Maintenance
Version 2015v1
8
2.2.2
Replacing rear wheels
The rear wheels should be removed as follows:
•
Remove locking nut (A) with a 17 mm box spanner.
•
Remove the complete rear wheel (B) from axle (C).
•
Remove the tyres, see ‘Repairing the tyre of the rear
wheel’ or ‘Replacing the tyre of the rear wheel'.
Fit the new wheel in the reverse order.
Attention:
The locknut may not be used again – use a
new one when replacing.
Always check the proper locking of the rear
wheels. Try to pull the wheel out of the frame
in axial direction. If the wheel comes out, it is
not properly secured. In that case, you should
repeat the above actions.
2.2.3
Repairing the tyre of the rear wheel
Repair a flat tyre as follows:
•
Remove the rear wheel to be repaired from the wheelchair. See ’Removing the rear wheels’.
•
Twist off the valve to let the air out of the tyre completely.
•
Using tyre levers pull one side of the tyre across the edge of the rim.
•
Remove the inner tube from the rim.
•
Repair the inner tube or replace it (this is done in the same way as a bicycle tyre).
Reassemble the tyre (with repaired or new inner tube) as follows:
•
Put the valve through the opening in the rim.
•
Carefully place the tyre around the rim.
•
Add a little air to the inner tube in order to position it comfortably around the rim.
•
Pull the tyre onto the rim as far as possible.
•
Allow all air to escape from the inner tube.
•
Now pull the tyre completely onto the centre of the rim as tightly as possible.
The rim has a room into which the tyre must be pulled, in order to create sufficient space to be able to pull the
complete tyre onto the rim by hand.
•
Pull the tyre completely onto the rim.
Do not use tyre levers to do this, because the inner tube is easily damaged by these. Moreover, the
tyre is easily assembled without tyre levers.
•
Make sure that the tyre is properly fitted onto the rim.
The inner tube may not protrude from under the tyre anywhere!
•
Pump up the tyre.
•
Mount the wheel back onto the wheelchair. See ’Removing the rear wheels’.
2.2.4
Replacing the tyre of the rear wheel
The tyre should be replaced as follows:
•
Remove the rear wheel to be repaired from the wheelchair. See ’Removing the rear wheels’.
•
Twist off the valve to let the air out of the tyre completely.
•
Using tyre levers, pull one side of the tyre across the edge of the rim.
•
Remove the inner tube from the rim.
•
Remove the other part of the tyre from the rim.
A
C
B
