Kuschall K-SERIES Service Manual - page 22
22
KÜSCHALL K-SERIES
attract
© Küschall AG, Switzerland | 2014-12
Service Manual
FRONT WHEELS
FRONT WHEELS
Replacing a front wheel
Difficulty:
Tools:
à 2x3
Remove screws A.
Remove the wheel axle B.
Remove the front wheel C.
i
The bearings are pre-mounted in the front wheel.
Slide the axle B through the fork D and the bearings of front
wheel C and fix the axle using screws A. Here, use the new screw
supplied with the wheel as this screw comes with a thread-locking
device.
Function check:
The wheel may not wobble, but must rotate easily.
Replacing a front wheel fork
Difficulty:
Tools:
10
Remove the sealing cap A of the bearings block by inserting two
screwdrivers into the grooves and flipping it off.
Remove the nut B with the washer E.
Remove the front wheel fork C.
Check the ball bearings D and replace them if necessary.
Insert the new front wheel fork with the washer E and the nut B
and tighten the nut.
Carry out the function check (see below).
Replace the sealing cap A.
Function check:
Tip the wheelchair backwards by 90° so that it is lying on the backrest
and the rear wheels. Turn the fork upwards (position A) and let it tip
downwards.
The fork has been correctly adjusted if it easily turns to beyond the
bottommost point and remains there (position B).
If the fork turns back to the lower position (position C), it has not
been sufficiently tightened. There is a risk that the front wheels will
start to wobble at high speeds.
A
à 4 Nm
A
B
C