Kuschall Advance Service Manual - Service Manual
13
© Küschall AG, Switzerland | 2013-01
Service manual
Backrest
Adjusting the backrest joint
Difficulty:
Tools:
10
Put the backrest up and let the pin
Ⓐ engage.
Press the backrest forwards to ensure the joint cannot move.
Unscrew the screw
Ⓒ until it touches the spigot
Ⓔ
of the seat frame.
Screw the screw back in by between a ¼ and a ½ turn and counter with
the counter nut
Ⓓ..
Correctly adjust the backrest joint on both sides.
Function check:
Sit in the wheelchair and lean back so that the backrest is strained. Upon
pulling the release cord
Ⓑ, the pin Ⓐ must be easily removed on both
sides and must fully glide back in upon letting go of the release cord.
The excentre plates must be set identically on both sides of the
wheelchair,
Chap. Backrest, Adjusting the backrest angle.
Check:
Check the settings of the adjustment screws
Ⓒ on both sides.
The screw head must only lightly touch the adjustment screw
Ⓔ on the
seat plate
Ⓕ when the backrest is in the upright position.
If necessary, readjust the length by releasing the counter nut and tighte-
ning or loosening the adjustment screw. Then retighten the counter nut
Ⓓ.
Incorrectly adjusted adjustment screws result in damage to the
backrest joint’s mechanism.
Replacing the backrest tube
Difficulty:
Tools:
Ã
3, 4 8, 10
Remove the backrest padding.
Slide the backrest bands upwards or downwards to gain access to the
screws
Ⓐ. Remove the screws and nuts on both sides.
Remove the push handles or the telescopic tubes and remove the
upper Velcro® bands.
Remove the screws
Ⓑ on the backrest joint.
Remove the lower Velcro® bands and the sleeve
Ⓓ with the adjustment
screw from the backrest tube
Ⓒ and fit both to the new backrest tube.
Fit the backrest tube to the backrest joint with the screws
Ⓑ. Here, first
fit the lower screw followed by the upper screw.
Fit the upper Velcro® bands and the push handles or the telescopic
tubes again and fix them with screws
Ⓐ and nuts.
Carry out the same setting on both sides.
Refit the backrest padding.
E
C
A
B
D
C
Ⓓ
à 7 Nm
Ⓔ à 4 Nm
A
B
D
C
Ⓐ
à 7 Nm
Ⓑ
à 7 Nm