Quantum Jazzy 1420 Series
www.quantumrehab.com
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V I I . C A R E A N D M A I N T E N A N C E
To replace the batteries:
1. Turn off the power to the controller.
2. Make sure that the power chair is in drive mode. See III.
“Your Power Chair.”
3. Unplug the controller connector(s) from the electronics tray.
4. Remove the seat and trapeze bars.
5. Remove the shroud.
6. Disconnect the wiring harnesses from the batteries.
Figure 25. Battery Wiring Diagram Label
7. Remove the batteries from the power base.
8. Place the new batteries in the power base. Make sure that the terminals are facing inwards. If the battery terminals are
in the middle of the batteries, then make sure that the positive terminal of the rear battery is facing the negative terminal
of the front battery on the left side. See figure 25.
9. Looking at the power base from the front, connect the red wire from the left side to the positive (+) terminal on the rear
battery and connect the black wire from the left side to the negative (-) terminal on the front battery.
10. Connect the red wire from the right side to the positive (+) terminal on the front battery and connect the black wire
from the right side to the negative (-) terminal on the rear battery.
WARNING! Make sure you tighten the fasteners so that the connections are secure.
11. Reinstall the shroud and trapeze bars.
12. Reinstall the seat.
13. Plug in the connectors to the electronics tray.
When to See Your authorized provider/specialist for Service
The following symptoms could indicate a serious problem with your power chair. If necessary, contact your authorized
provider/specialist. 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 tires
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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 authorized provider/specialist.
