
Invacare
®
- STORM
4
MAX
SERVICE MANUAL
7
8.10.2.3
Replacing puncture-proof tyres ................................................................................ 84
8.10.3
Replacing the drive wheel hub ...................................................................................... 85
8.11
Drive unit .................................................................................................................................. 86
8.11.1
Replacing the motor/transmission unit (Standard Storm
4
)............................................ 86
8.11.2
Replacing the carbon brushes (Standard motor) .......................................................... 88
8.11.3
Replacing Bowden cables and the clutch ..................................................................... 90
8.12
Rear wheel suspension ........................................................................................................... 93
8.12.1
Replacing the rear wheel suspension ........................................................................... 93
8.13
Replacing the strut .................................................................................................................. 95
8.13.1
Removing the suspension strut .................................................................................... 95
8.14
Seat support and tilt module .................................................................................................. 97
8.14.1
Replacing the seat support with manual tilt module (till Dec. 2010) ............................. 97
8.14.2
Adjusting the seat tilt on a seat with a manual tilt module (till Dec. 2010) .................... 99
8.14.3
Replacing the seat frame with a manual tilt module (from Dec. 2010) ....................... 100
8.14.4
Adjusting the seat tilt on a seat with a manual tilt module (from Dec. 2010) .............. 102
8.14.5
Replacing the seat support with electric tilt module .................................................... 103
8.14.6
Replacing the tilt actuator ........................................................................................... 105
8.15
Replacing the seat column ................................................................................................... 106
8.16
Back unit ................................................................................................................................. 108
8.16.1
Adjusting the belt back ................................................................................................ 108
8.16.2
Adjusting a sling backrest ........................................................................................... 109
8.16.3
Replacing the cross braces ........................................................................................ 110
8.16.4
Replacing a standard backrest ................................................................................... 111
9
Installing accessories
112
9.1
Replacing the safety belt ...................................................................................................... 112
9.2
Fitting the headrest ............................................................................................................... 113
9.2.1
Fitting the headrest to the standard back ................................................................... 113
9.3
Installing armrests ................................................................................................................. 114
9.4
Installing a footrest ............................................................................................................... 116
9.5
Installing calf supports ......................................................................................................... 117
9.6
Further accessories ............................................................................................................... 117
10
Adjusting the seating position
118
10.1
Seat height adjustment ......................................................................................................... 119
10.2
Seat support ........................................................................................................................... 121
10.2.1
Adjusting the seat width .............................................................................................. 121
10.2.2
Adjusting the seat depth ............................................................................................. 123