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6.17 Installing the Anti-tipper
When mounting a seat tilt, front anti-tipper wheels must be additionally mounted on B500-S.
The anti-tipper for the B500/B500-S power wheelchair may only be used as a pair (one on the
left, one on the right).
❒ Allen wrench, size 5
❒ Open-end or combination wrench, size 13
1. Mount the anti-tipper to the drive unit sustainer:
– For models without springs: With two carriage screws each.
– For models with springs: With two Allen head screws each.
6.18 Replacing the Oscillating Crank
Each motor is attached to the oscillating cranks with 4 Allen head screws. The oscillating cranks
are attached to the drive unit sustainer with one screw each.
❒ Remove the drive motor (see Section 6.16).
❒ Socket, size 19
❒ Allen wrench, size 6
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