5 Testing
5.1 Testing Motor
The testing procedure does not apply to True Track® Plus motors. In the case of the True Track® Plus motor, the
cable plug is connected directly to the motor.
•
Digital multimeter with resistance measurement
1.
Remove rear shroud as described in
2.
Pull the motor plug out of power module.
3.
Connect the digital multimeter to the motor plug
contacts (3) and measure the resistance between the
contacts.
Fig. 5-1
A resistance of between 0.5 ohms and 5.0 ohms indicates a motor ready for operation. A resistance of between
15.0 ohms and infinity indicates a defective motor. High resistances are normally caused by bad connections
or worn carbon brushes.
5.2 Testing Motor Brake
This test should only be carried out on mobility devices with conventional motor/gearbox units.
CAUTION!
Risk of damage to power module due to shorts in motor brake
– Never connect a shorted motor brake to an intact power module.
– Always replace shorted brakes immediately.
A defective motor can damage the power module, but a defective power module cannot damage the motor.
•
Phillips screwdriver, size 2
•
Digital multimeter with resistance measurement
1.
Remove rear shroud as described in
2.
Pull motor plug out of the power module.
3.
Connect the digital multimeter to the adjacent central
motor plug contacts (3) and measure the resistance
between the contacts.
4.
If there is a defect, replace the motor and send it to
Invacare Service for inspection or repair.
Fig. 5-2
A resistance of between 40 ohms and 80 ohms indicates an intact brake. A resistance of 0 ohms or a very high
resistance (mega-ohms or infinity) indicates a short-circuit, a bad connection or a defective brake.
5.3 Rain test
•
Check to ensure that the black battery terminal caps are secured in place, gaiter is not torn or cracked where water
can enter and that all electrical connections are secure at all times.
•
Do not use the mobility device if the gaiter is torn or cracked. If the gaiter becomes torn or cracked, replace
immediately.
1533060-N
17
Summary of Contents for Storm 4 Series
Page 4: ...Invacare Storm Series 7 Accessories 97 7 1 Accessories list 97 4 1533060 N...
Page 98: ...Notes...
Page 99: ...Notes...
Page 100: ...Notes...
Page 101: ...Notes...
