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Troubleshooting
9.2 Identifying and repairing faults
Fault
Possible cause
Action
Incorrect tire pressure on one rear wheel
Correct tire pressure,
→
3.10 Tires, page 15
The wheelchair does not
travel in a straight line
One or more spokes broken
Replace faulty spoke(s),
→
specialist dealer
Spokes tightened unevenly
Tighten loose spokes,
→
specialist dealer
Front wheel bearings are dirty or damaged
Clean or replace the bearings,
→
specialist dealer
Rear wheels are mounted too far forwards
Mount the rear wheels further back,
→
specialist dealer
The wheelchair tips
backwards too easily
Back angle too large
Reduce the backrest angle,
→
specialist dealer
Incorrect tire pressure in one or both rear tires
Correct tire pressure,
→
3.10 Tires, page 15
The brakes are gripping
poorly or asymmetrically
Brake setting incorrect
Correct the brake setting,
→
specialist dealer
Tire pressure in rear tires is too low
Correct tire pressure,
→
3.10 Tires, page 15
Rolling resistance is very high
Rear wheels not parallel
Ensure the rear wheels are parallel,
→
specialist dealer
Too little tension in front wheel bearing block
Tighten the nut on the bearing block axle slightly,
→
specialist dealer
The front wheels wobble
when moving fast
Front wheel has worn smooth
Change front wheel,
→
specialist dealer
The front wheel is stiff or
stuck
Bearings are dirty or faulty
Clean or replace the bearings,
→
specialist dealer
1583571-B
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