8.7.14 Replacing the complete rear light (LED lighting unit)....................................................88
8.7.15 Replacing the rear bulb holder (LED lighting unit) ........................................................89
8.8 Front wheel forks.....................................................................................................................90
8.8.1 Replacing the wheel fork...............................................................................................90
8.8.2 Adjusting the wheel fork................................................................................................92
8.8.3 Changing a front wheel.................................................................................................93
8.9 Replacing the front wheel carrier...........................................................................................95
8.9.1 Replacing the front wheel carrier (only Standard Storm4).............................................95
8.9.2 Replacing the front wheel carrier (only Storm4X-plore)................................................96
8.10 Drive wheels.............................................................................................................................98
8.10.1 Replacing the drive wheel.............................................................................................98
8.10.2 Replacing a tyre or inner tube.....................................................................................100
8.10.2.1 Replacing pneumatic tyres ....................................................................................100
8.10.2.2 Replacing puncture-protected tyres.......................................................................102
8.10.2.3 Replacing puncture-proof tyres..............................................................................104
8.10.3 Replacing the drive wheel hub....................................................................................105
8.11 Drive unit................................................................................................................................106
8.11.1 Replacing the motor/transmission unit (Standard Storm4)..........................................106
8.11.2 Replacing the motor/transmission unit (SSD motor) ..................................................108
8.11.3 Replacing the motor/transmission unit (Storm4X-plore) ............................................110
8.11.4 Replacing or rotating the motor / gearbox unit sealing ring (SSD motor)...................113
8.11.5 Replacing the motor / gearbox coupling (SSD motor)................................................114
8.11.6 Replacing the carbon brushes (Standard motor)........................................................116
8.11.7 Replacing the carbon brushes (SSD motor)...............................................................118
8.12 Rear wheel suspension.........................................................................................................120
8.12.1 Replacing the rear wheel suspension.........................................................................120
8.13 Replacing the strut................................................................................................................122
8.13.1 Removing the suspension strut ..................................................................................122
8.13.2 Replacing the front suspension strut (only Storm4X-plore)........................................124
8.14 Seat support and tilt module................................................................................................126
8.14.1 Replacing the seat support with manual tilt module (till Dec. 2010) ...........................126
8.14.2 Replacing the seat frame with a manual tilt module (from Dec. 2010).......................127
8.14.3 Replacing the seat support with electric tilt module....................................................129
8.14.4 Replacing the tilt actuator ...........................................................................................131
8.15 Seat column / lifter column...................................................................................................132
8.15.1 Replacing the seat column .........................................................................................132
8.15.2 Replacing a type A electrical lifter column..................................................................134
8.15.3 Replacing a type B electrical lifter column..................................................................136
8.16 Back unit.................................................................................................................................139
8.16.1 Replacing the standard back ......................................................................................139