Adjusting Backrest; Adjusting Tension Adjustable Backrest; Adjusting Height Of Backrest Frame - Invacare Storm4 Series Service Manual

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Invacare® Storm⁴ Series

4.4 Adjusting Backrest

CAUTION!

Adjusting the seat tilt or the backrest angle changes the geometry of the mobility device and directly

influences its dynamic stability!

– For details regarding dynamic stability, negotiating gradients and obstacles and the correct adjustment of seat

tilt or backrest angle, refer to Taking Obstacles and Driving up and down Gradients.

Tension adjustable backrest can be individually adapted to the user's back shape.

1. Pull the front and rear faces of the backrest upholstery

(1) apart and remove. The backrest upholstery front

and rear faces are held together using hook-and-loop

fasteners.

2. Open the backrest belt (2) hook-and-loop fastenings and

adjust to the required length.

3. Reattach the backrest upholstery and fix with

hook-and-loop fastenings.

The following describes only how to adjust the height of the backrest frame. For further adjustments of the backrest

frame to user needs see the corresponding user manual.

•

5 mm Allen key

1. Raise backrest tube as far as possible. See 4.4.3

Adjusting Height of Backrest Tube, page 11.

2. Loosen screws A.

3. Move backrest frame B to desired height.

4. Re-tighten screws A.

5. Lower backrest tube and re-tighten handscrews.

Fig. 4-3

Fig. 4-4

1555830-C

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