Backrestadjusting - Invacare G40 Service Manual

7.4

Backrestadjusting

1 Gas spring
2 Fork M10x1
3 Trip lever for gas spring
4 Adjustment screw
5 Clamping screw
6 Bowden wire
7 Bowden wire sleeve
8 Backframe
9 Clutch
10 Wing screw M6x10
11 Hexagon head screw
M10x35
12 2 discs 10,5
13 Nut M10
14 Adjusting lever for backrest
15 Cap for bowden wire
Check
Check gas spring and bowden wire!
• Bowden wire defective?
• Bowden wire sleeve defective?
• Gas spring defective?
• Trip lever does not move easily or is defective?
• Fork defective?
• Hanger assembly of gas spring does not move
easily?
• Clutch defective?
• Adjusting defective?
Complete disassembly
• Release wing screw (10) and draw off clutch (9) from backframe (8).
• Bring seat system in service position and arrest.
• Release hexagon head screw with nut and discs and take off fork (2) from seat frame.
• Turn gas spring (1)out of fork (2).
• Release screw (11) with nut (13) and discs (12) and take off clutch (9) from gas spring (1).
• Release clamping screws (5) and nuts and screw out adjusting screws (4).
• Pinch off caps (15) from bowden wire (6) and take off bowden wire sleeve (7).
• Release screw and nut and take off trip lever(3) from fork (2).
Assembly
• Assembly is carried out in reverse order.
NOTE:
• Mark or note the position of adjusting screws beforedisassembly.
• Screw in gas spring at assembly until stop into fork.
• Adjust bowden wire so, that at screwed in gas spring??????????????????
• After drawing in a new bowden wire, caps must be squeezed on.
• The adjusting lever is stored in seat frame and arrested with a starlock cap. For disassembly you first
have to remove the seat shell. See chapter 7.5.
18
Gas spring and bow-
den wire compl.
14
15
2
3
4
6, 7
5
4
6, 7
1
Action
> Readjust bowden wire.
> Replace bowden wire.
> Replace bowden wire sleeve.
> Replace gas spring.
> Make moving or replace trip lever
> Replace fork.
> Make moving hanger assembly or replace
screwing.
> Replace clutch.
> Replace adjusting lever.
8
10
9
11, 12, 13