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Quantum R-4000
Figure 12. Anti-Tip Wheel Assembly
ANTI-TIP WHEEL
ANTI-TIP WHEEL
BRACKET
BOLT A
BOLT B
Anti-Tip Wheels
The anti-tip wheels are designed to give your power chair increased stability on rough surfaces. The anti-tip wheels are
preset at the factory for smooth surfaces or indoor use only. If you plan on using your power chair on rough surfaces, it
may be necessary to adjust the anti-tip wheels to better suit your needs. The anti-tip wheels may need adjustment if either
of the following occur:
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When accelerating, your power chair tips rearward excessively.
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The anti-tip wheels constantly rub the ground.
WARNING! Consult your Quantum Rehab Dealer before attempting to change the anti-tip wheel
height! Changing the anti-tip wheel height affects handling under deceleration!
WARNING! The higher you raise the anti-tip wheels, the more you increase your power chair’s
tendency to tilt rearward when accelerating. You can compensate for this by having your Quantum
Rehab Dealer make a small adjustment to the pre-programmed acceleration setting in the controller
or by adjusting the seat assembly.
WARNING! The anti-tip wheels may cause trouble when ascending or descending a kerb if they
are not adjusted correctly. Contact your Quantum Rehab Dealer for more information.
To adjust the anti-tip wheels:
1. Loosen bolt A. See figure 12.
2. Remove bolt B.
3. Raise or lower the anti-tip wheel by 1.25 cm (0.5 in.) or
2.54 cm (1 in.) increments by aligning the appropriate
adjustment holes. See figure 12.
4. Insert bolt B into the appropriate hole for the desired
anti-tip height and tighten.
5. Tighten bolt A.
6. Raise or lower the other anti-tip wheel so that it is at
the same height.
PROHIBITED! Do not remove the anti-
tip wheels.
NOTE: Each pneumatic drive tyre must be inflated
to the psi/bar/kPa air pressure rating indicated on
the tyre to be properly adjusted. The user must also
be seated in the power chair in order to properly
adjust the anti-tip wheels.
V . C O M F O R T A D J U S T M E N T S
To change the controller extension:
1. Turn off the power to the controller.
2. Loosen the setscrews in the controller mounting block. See figure 11.
3. Slide the controller into or out of the armrest to the desired position.
4. Tighten the setscrews to secure the controller.
