Adjusting The Drive Wheels; Adjusting The Quick-Release Axle; Adjusting The Caster Wheels; Adjusting The Wheel Locks - Otto Bock Start B2 Instructions For Use Manual

Settings and assembly instructions
Adjustments to match the concrete physical and mental condition of the user should always be made in the user's
presence.
All parts of the product should be cleaned thoroughly before adjustments are made.
The tools required for adjustments and maintenance tasks as well as the torque values for screw connections are
listed in the section "Appendices" (see Page 40).

7.2 Adjusting the drive wheels

The rear wheel position cannot be adjusted with this wheelchair type.

7.2.1 Adjusting the quick-release axle

The quick-release axle should be set so the wheel is correctly engaged, with no play on the axle.
1) Hold the quick-release axle by the head (wrench size: 19 mm) and by the tip (wrench size: 11 mm) with a ring
and open-ended wrench respectively.
2) Adjust the play by turning the nut on the end of the quick-release axle (see fig. 6, item 1) in or out.
6

7.3 Adjusting the caster wheels

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

7.4 Adjusting the wheel locks

WARNING
Failure to verify brake functionality
Accident, falling of the user due to incorrect adjustment
► Check the correct spacing between the wheel lock bolt and tyre (see the following section for details).
► Check the correct position of the wheel lock bolt relative to the tyre. During braking, the wheel lock bolt has to
cover at least half the tyre width.
► Always carry out adjustments to the wheel lock on both sides.
► Ensure that the user can operate the wheel lock without great effort. The force required to do so must not
exceed 60 N.
► Only use original drive wheels with a verified maximum radial out-of-round of 1 mm.
This adjustment must be made for fine adjustment of the wheel lock.
Version 1
1) Loosen the Allen head screws on the clamp bracket (see fig. 7, item 1).
2) The knee lever wheel lock is continuously moveable and adjustable (see fig. 7, item 2).
When the wheel lock is disengaged, the gap between the tyre and wheel lock bolt must not exceed 5 mm (see
fig. 8).
Ensure that the wheel lock bolt covers at least half the tyre width during braking.
3) Tighten the Allen head screws to 16 Nm.
→ After adjustment, the left and right knee lever wheel locks must both have the same braking force.
14 Start B2