Drive Motor Thermal Sensor - Genie Z-40/23N Service And Repair Manual

Service and Repair Manual
Motor Controller Fault Codes

Drive Motor Thermal Sensor

The thermal sensor is monitored by the motor
controllers to maintain optimum performance and
as a thermal shutdown protection device.
Normal safe operating range is between -40°F /
-40°C and 131°F / 55°C at an 85% duty cycle.
Thermal faults will occur when the temperature
exceeds its threshold of 302°F / 150°C. Then drive
speeds will be reduced by 50%.
Thermal shut down occurs at 392°F / 200°C.
How to Test the Thermal Sensor
1 Disconnect the battery packs from the
machine.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
2 Remove the chassis cover fasteners from the
non-steer end of the chassis. Remove the
cover.
3 Remove the fasteners from the axle covers
from the non-steer axle. Remove the covers.
4 Tag and disconnect the six pin Deutsch
electrical connector for the speed and
temperature sensor at the drive motor.asure
the drive motor case temperature using a
thermometer.
5 Measure the drive motor case temperature
using a thermometer.
6 Measure the resistance between pins 5 and
6 on the Deutsch connector going into the
motor housing. Compare value to chart on
right.
82
Temperature
-40 / -40
-22 / -30
14 / -10
104 / 40
122 / 50
140 / 60
158 / 70
176 / 80
194 / 90
212 / 100
230 / 110
248 / 120
266 / 130
284 / 140
302 / 150
320 / 160
338 / 170
347 / 180
374 / 190
392 / 200
410 / 210
428 / 220
446 / 230
464 / 240
482 / 250
500 / 260
518 / 270
536 / 280
554 / 290
572 / 300
Z-40/23N, Z-40/23N RJ
°F / °C
-4 / -20
32 / 0
50 / 10
68 /20
77 / 25
86 / 30
September 2016
Resistance
Ohm
355
386
419
455
493
533
576
598
621
668
718
769
824
880
939
1000
1063
1129
1197
1268
1340
1415
1493
1572
1654
1739
1825
1914
2006
2099
2195
2293
2392
2490
2584
2668
Part No. 1268528