Kuschall KSL Service Manual - Service Manual
5
© Küschall AG, Switzerland | 2011-12
Service Manual
Torque
All screw connections must be tightened with the torques specified in
the following instructions. Adhering to the given torques requires the
use of a torque spanner.
Checks
Check that all bolts have been tightened with the torque specified in
the instructions.
Check the entire frame for cracks, especially in the vicinity of joints and
weld seams (frame, axle clamp components, backrest)
j
Several bolts are secured with adhesive. If these are loosened, they
have to be cleaned and secured with adhesive again.
j
Self-locking nuts and screws, once loosened, have to be replaced by
new ones.
Identifying and repairing faults
Fault
Possible cause
Action
The wheelchair does not travel
in a straight line
Incorrect tyre pressure on one rear wheel
Correct tyre pressure
One or more spokes broken
Replace broken spoke(s)
Spokes tightened unevenly
Tighten loose spokes
The wheelchair tips too easily
Frame geometry does not meet specifications
Fitting an antitipper
Backrest angle too great
Replace backrest with smaller backrest angle
Removable axles cannot be
inserted correctly
Removable axles dirty
Clean removable axles
Removable axles misaligned
Adjust removable axles
The brakes are gripping poorly
or asymmetrically
Incorrect tyre pressure in one or both rear tyres
Correct tyre pressure
The rolling resistance is very
high
Tyre pressure in rear tyres is too low
Correct tyre pressure
Rear wheels not parallel
Ensure rear wheels are parallel
The front wheels wobble when
moving fast
Too little tension in front wheel bearing block
Tighten the nut on the bearing block axle slightly
Front wheel has worn smooth
Change front wheel
The front wheel is stiff or stuck
Bearings are dirty or faulty
Clean or replace the bearings