Adjusting The Caster Wheels; Adjusting The Caster Wheel Journal Angle; Changing The Installation Position Of The Caster Wheels; Adjusting The Wheel Locks - Otto Bock Start M1 Instructions For Use (Qualified Personnel

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6.3 Adjusting the caster wheels

With this wheelchair type, the caster wheel journal angle cannot be adjusted.

The front seat height can be adjusted by moving the caster wheels in the fork and using different caster wheel sizes

(see Page 20 ff.).

The seat height/angle can be retroactively adjusted through repositioning of the casters in the caster forks or use of

different wheel sizes.

Please refer to the installation matrix in the section "Technical data" for permitted positions and combinations of

rear and caster wheels.

1) Loosen the screw connection on the threaded axle (see fig. 8, item 1).

2) Remove the screw/threaded sleeve, spacers and, if applicable, nuts (see fig. 9).

3) Remove the caster wheel.

4) Insert the screw/threaded sleeve with the first spacer bushing offset in one of the 4 holes (not illustrated).

5) Install the caster wheel.

6) Slide on the second spacer bushing (not illustrated).

7) Tighten the screw/nut to 8 Nm.

→ Once changed, the left and right caster wheels must have the same vertical position in the caster fork.

CAUTION

Failure to verify brake functionality

Accident, falling of the user due to incorrect adjustment

► Verify the correct setting of the wheel lock (especially the distance between the wheel lock bolt and tyre).

► Ensure that the user can operate the wheel lock without great effort. The force required is not permitted to

exceed 60 N (~ 6 kg).

► Only use original rear wheels with a verified maximum radial out-of-round of 1 mm.

12 | Ottobock

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