User manual

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 (B), the wheel may be

removedfromthewheelaxle(D).

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 (A) precisely.

Screwthewheelontothewheelaxlewiththewheelnut

(B)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.

Also observe proper placement of the wheel nut (B) when

tightening. The wheel nut is a stop nut. One side of the

stop nut has a plastic insert. It must point outward when

tightening.

The wheel tappet nut (A) may remain in the rim when re-

movingtherearwheelordetachfromthewheelaxle(D)

when the wheel is taken off. In this case ensure that the

driving pin (C) does not fall out and get lost.

When the wheel is later replaced, ensure that the tappet

pin(C)isexactlyinthecentreofthewheelaxle(D)and

inserted into the respective groove of the wheel tappet nut

(A).

If the tappet pin (C) is missing, no torque can be transfer-

red from the motor to the wheel and the wheel will spin

freely.