Identifying And Repairing Faults - Küschall CHAMPION Manual Del Usuario

9.2 Identifying and repairing faults

Fault
The wheelchair does not
travel in a straight line
The wheelchair tips
backwards too easily
The brakes are gripping
poorly or asymmetrically
Rolling resistance is very high
The front wheels wobble
when moving fast
The wheelchair is very difficult
to unfold
1583536-C
Possible cause
Incorrect tire pressure on one rear wheel
Bearing block of the front wheel is not in a
vertical position
Front wheels not adjusted to same height
One or more spokes broken
Spokes tightened unevenly
Front wheel bearings are dirty or damaged
Rear wheels are off track
Rear wheels are mounted too far forwards
Back angle too large
Seat angle too large
Incorrect tire pressure in one or both rear tires
Brake setting incorrect
Tire pressure in rear tires is too low
Rear wheels are off track
Too little tension in front wheel bearing block
Backrest cover is too tight
Folding mechanism adjusted too hard
Action
Correct tire pressure, ® 3.9 Tires, page 15
Put bearing block in a vertical position, ® specialist
dealer
Position the front wheels such that they touch the
floor at the same time, ® specialist dealer
Replace faulty spoke(s), ® specialist dealer
Tighten loose spokes, ® specialist dealer
Clean or replace the bearings, ® specialist dealer
Change track, ® specialist dealer
Mount the rear wheels further back, ® specialist dealer
Reduce the backrest angle, ® specialist dealer
Use longer vertical struts, ® specialist dealer
Correct tire pressure, ® 3.9 Tires, page 15
Correct the brake setting, ® specialist dealer
Correct tire pressure, ® 3.9 Tires, page 15
Change track, ® specialist dealer
Tighten the nut on the bearing block axle slightly,
® specialist dealer
Loosen the Velcro bands of the backrest cover a little,
® 3.3 Backrest, page 11
Adjust folding mechanism, ® specialist dealer
Troubleshooting
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