Adjusting The Backrest Angle; Unit) - Invacare Storm 4 Series User Manual

Invacare® Storm®⁴ Series
4. Re-insert screw A.
5. Re-tighten the screws.
5.11.4 Adjusting the backrest angle (Modulite seat unit)
CAUTION!
Every change to the seat angle and the
backrest angle alters the geometry of the power
wheelchair and affects its dynamic stability
– For more information on stability, overcoming
obstacles correctly, driving along inclines and
slopes and the correct position of the backrest
and seat angles, see the section 6.5 Taking
Obstacles, page 91 and Driving up and down
gradients.
CAUTION!
Risk of falling out of the wheelchair
When adjusting the backrest, it might move
backward unexpectedly and you might fall out
of the wheelchair.
– Do not rest against the backrest while adjusting
it.
If the backrest is fitted with knobs instead of Allen
screws, you do not need tools.
Width-adjustable backrest
• 6 mm Allen key
56
1. On both sides, loosen and remove the upper backrest
screw A.
2. Set the required backrest angle in 3.8° steps.
Use scale B on the backrest for this purpose. Ensure
that you set the same angle on both sides.
3. Re-insert and tighten the screw.
Ensure you insert the screw through one of the holes
of the backrest bracket. The screw must be visible on
the inside of the bracket and the screw head must be
flush with the bracket.
Simple backrest
• 6 mm Allen key
1529686-U