SE-3 Patroller92
Motor Controller
When replacing the left motor controller, the throttle needs
to be recalibrated. For instructions on calibrating the throttle
contact Segway Technical Support.
Tools Required: 5 mm hex wrench
10 mm socket wrench
Flathead screwdriver
Torque wrench
Removal
1. Make sure the SE-3 Patroller is powered off,
unplugged, and the parking brake is engaged.
2. Access the motor cavity (page 89). This involves
disassembling the SE-3 Patroller until the motor
cavity is exposed.
3. Using a 10 mm socket wrench, disconnect the power
and motor current harnesses.
4. Using a flathead screwdriver, lift the tab on the Drive
Harness while pulling the connector off.
See Figure 125.
5. Using a 5 mm hex wrench, remove the four fasteners
holding the motor plate onto the bottom of the motor
cavity. See Figure 124.
NOTICE
Do not remove the four star drive fasteners holding
the Motor Controller cover.
6. Remove the Motor Controller.
Installation
1. Make sure the SE-3 Patroller is powered off,
unplugged, and the parking brake is engaged.
2. Place the Motor Controller in the Motor Cavity. Orient
it so the large connector is toward the rear.
3. Using a 5 mm hex wrench, install the four fasteners.
Torque to 7.5 N-m (5.5 ft-lbf).
4. Connect the Drive Harness.
Using a 10 mm socket wrench, install the remaining
harnesses:
Power
B+ Red
B– Black
Motor
W White
V Red
U Brown
Arrange the hardware stack as shown in Figure 126.
Torque to 7.5 N-m (5.5 ft-lbf).
5. Secure the motor cavity (page 89).
6. Perform post-service tests (page 127).
Figure 124: Motor Controller
Figure 125: Removing the Harness
Flat Washer
(24434-00003)
Lock Washer
(24435-00003)
24436-00004
7.5 N-m (5.5 ft-lbf)
Ring Terminal
Figure 126: Hardware Stack
23869-00003
7.5 N-m (5.5 ft-lbf)
Motor Controller
(23722-00001)
Drive Train
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