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www.pridemobility.com
Quantum R-4000
When to See Your Quantum Rehab Dealer for Service
The following symptoms could indicate a serious problem with your power chair. If necessary, contact your Quantum
Rehab Dealer. When calling, have the model number, serial number, nature of the problem and the trouble code if available.
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Motor noise
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Frayed harnesses
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Cracked or broken connectors
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Uneven wear on any of the tyres
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Jerky motion
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Pulling to one side
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Bent or broken wheel assemblies
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Does not power up
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Powers up, but does not move
Corrective Maintenance
If the battery condition meter does not light up when you turn on the power:
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Check the harness connections. Make sure they are tight.
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Check the circuit breaker. Reset it if necessary.
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Check the battery connections.
If the above conditions prove normal, you can load test the batteries with a battery load tester. These testers are available
at automotive parts stores. Disconnect both batteries before load testing and follow the directions that come with the load
tester. If either one of the batteries fails the load test, replace both of them. If your power chair still does not power up,
contact your Quantum Rehab Dealer.
V I I . C A R E A N D M A I N T E N A N C E
Figure 17. Battery Wiring Diagram
To replace the batteries:
1. Turn off the power to the controller.
2. Pull the manual freewheel levers up for drive mode.
3. Remove or rotate the leg rests to the side.
4. Release the battery door latches at the back of the power chair.
5. Locate the battery quick disconnects on the frame and disconnect
both of them. See figure 17.
6. Remove the batteries from the power base.
7. Disconnect the battery wiring harness from each battery.
8. Reinstall the battery wiring harness on each new battery. Make
sure that you connect the red wire to the positive (+) battery
terminal and the black wire to the negative (-) battery terminal.
WARNING! Make sure you tighten the fasteners
so that the connections are secure.
9. Place the batteries back into the power base.
10. Connect the battery quick disconnects according to the battery
wiring diagram label located on the frame. See figure 17.
11. Reconnect the battery door latches.
12. Reinstall or rotate the leg rests back to position.
13. Charge the batteries. See VI. “Batteries and Charging.”
