Check Drive Motor; Motor Coil Continuity - Invacare Electra Service Manual

®
Invacare
11.1.3 Testing the individual voltage of the batteries
Test the individual voltage U on the batteries that have been taken out by means of a Multimeter (measuring
range 50 V / 25 V DC (see chapter 10.1 page: 26).
Test
• Voltage under
12V?
• Voltage under
9.5V?
• Voltage under 0V? Þ Check fuses.
• Different voltage
(tolerance ± 0.2 V)
at each battery?
11.2

Check drive motor

11.2.1 Motor coil continuity

•
Remove drive unit panelling (see chapter 9.3 page: 19).
•
Remove the drive unit connecting plug at the controller (3).
•
Set the Multimeter to continuity check or resistance measuring.
•
Measure the continuity or resistance (R
between the red and black cable on the motor plug.
Test results:
No continuity in motor
circuit
(R = ∞ Ω).
Electra
Fault
Þ Battery not
completely charged.
Þ Battery fully
discharged.
The fuse is located
in the battery cable
bridges. (Chapter
10.1.5 page: 27)
Þ batteries defective
req
•
Broken cable in motor.
•
Carbon brushes worn
out.
Remedy
Þ Charge the battery with
®
an Invacare charger.
Þ Pre-charge battery.
See chapter 12.1
page:35.
Þ "Ah Batter"
Check master fuse (50
A) of battery and cable /
connections, replace if
necessary, replace
battery if necessary
Þ Replace batteries
= 0 Ω) of the motor circuit
Þ Replace drive unit.
Þ Check / replace
carbon brushes.
Page 32
Service Manual
Check individual voltage
Drive unit connector
plug
Chapter:
Chapter: 9.6.5 page: 24
Chapter: 9.6.4 page: 24
As at:15.04.02