SECTION
Motor/Gearbox/Brake
SYMPTOM | PROBABLE CAUSE | SOLUTIONS |
|
|
|
Erratic perfor- | Low tire pressure. | Inflate tires to the proper tire pressure. |
mance of wheel- |
|
|
chair (driving uphill, |
|
|
increase in braking |
|
|
distance). |
|
|
|
|
|
Wheelchair will not | Low tire pressure. | Inflate tires to the proper tire pressure. |
drive. |
|
|
| Motor engagement handles are dis- | Engage motor engagement handles. |
| engaged. |
|
| Batteries require charging. | Charge batteries. Make sure the setting on the |
|
| charger is correct. |
| Charger plugged in. | Unplug charger from wall outlet before operating |
|
| the wheelchair. |
| Circuit breaker tripped. | Press the reset button. Refer to Resetting the Cir- |
|
| cuit Breaker on page 54. |
|
|
|
Motors stall and | Current rollback. | Stop driving and let electronics cool. |
start up again. |
|
|
|
|
|
Motor “chatters” | Electrical malfunction. | Contact Invacare. |
or runs irregularly. |
|
|
|
|
|
Only one drive | Electrical malfunction. | Contact Invacare for service. |
wheel turns. |
|
|
| One motor is disengaged. | Engage motor engagement handle. |
|
|
|
Joystick erratic or | Electrical malfunction. | Contact Invacare for service. |
does not respond |
|
|
as desired. | Controller programmed improperly. | Reprogram controller (Refer to electronics man- |
|
| ual supplied with wheelchair). |
|
|
|
Wheelchair does | Poor battery terminal connection. | Have terminals cleaned. |
not respond to |
|
|
commands. |
|
|
|
|
|
Power indicator off | Electrical malfunction. | Contact Invacare for service. |
- even after |
|
|
recharging. |
|
|
|
|
|
At’m and At’m QT | 22 | Part No. 1125078 |