Instructions

59
c) Wheel Change
The tyres are fastened to the wheel rim to prevent them from coming loose. When the tyre is worn down, the entire
wheel has to be replaced therefore.
Afterlooseningofthewheelnut,thewheelmayberemovedfromthewheelaxle.
Thenthenewwheelispluggedonsothatthehexagonsocketonthewheelrim‘sinsideispushedontothewheel
tappet nut precisely.
Screwthewheelontothewheelaxlewiththewheelnutremovedatrst.However,donotapplyanyforceforscrewing
on. This will require greater force to turn the wheel, which may damage the drive.
The wheel tappet nut (B) may remain in the rim when re-
movingtherearwheelordetachfromthewheelaxle(C)
when the wheel is taken off. In this case ensure that the
driving pin (D) does not fall out and gets lost.
When the wheel is later replaced, ensure that the tappet
pin(D)isexactlyinthecentreofthewheelaxle(C)and
inserted into the respective groove of the wheel tappet nut
(B).
If the tappet pin (D) is missing, no torque can be trans-
ferred from the motor to the wheel and the wheel will spin
freely.