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28 www.pridemobility.com Quantum Q4
VII. CARE AND MAINTENANCE
Follow these easy steps for a quick and safe repair for both pneumatic and solid tires:
1. Turn off the power to the controller.
2. Set the power chair up on blocks.
3. If you are changing a pneumatic tire, completely deflate it before removing the wheel.
4. Remove the (5) lug nuts from the wheel hub. See figure 22.
5. Pull the wheel off of the hub.
6. Remove the screws and separate the front and rear rim. See figure 23.
7. Remove the old tube from the pneumatic tire and replace it with a new tube or replace the entire assembly if
it is a solid tire.
8. Screw together the two rim halves.
9. Slide the wheel back onto the hub.
10. Reinstall the five (5) lug nuts onto the wheel hub and tighten.
11. Inflate the pneumatic tire to the psi/bar/kPa air pressure rating indicated on each tire.
12. Remove the power chair from the blocks.
Battery Replacement
A battery wiring diagram is printed on a decal located on the front cover. See the specification table for correct
battery specifications.
MANDATORY! Battery posts, terminals, and related accessories contain lead and
lead compounds. Wear goggles and gloves when handling batteries and wash hands
after handling.
WARNING! The batteries in your power chair should only be serviced or replaced by
a Quantum Rehab Provider or a qualified technician.
WARNING! Do not replace batteries when seat is occupied.
WARNING! Power chair batteries are heavy. See specifications table. If you are
unable to lift that much weight, be sure to get help. Use proper lifting techniques
and avoid lifting beyond your capacity.
WARNING! Do not mix old and new batteries. Always replace both batteries at the
same time.
PROHIBITED! Keep tools and other metal objects away from the battery terminals.
Contact with tools can cause electrical shock.
Figure 23. Quantum Q4 Drive Wheel Disassembled
TIRE
SCREWS
FRONT RIM
HALF
LUG NUTS
REAR RIM HALF
Figure 22. Quantum Q4 Drive Wheel
WHEEL
HUB
TUBE