3-Point Hitch Position Sensor
g258812
Figure 91
1.
Screw (2 each)
4.
Spacer
2.
Position sensor
5.
V-ring
3.
Wire harness connector
The 3-point hitch position sensor is an analog hall effect sensor that
communicates the height of the 3-point hitch to the T1: TEC. The sensor is
located on the left end of the lift arm pivot shaft. The T1: TEC uses information
from the sensor to control the attachment height while operating in attachment
mode. The sensor signals are also constantly monitored for 3-point hitch fault
detection.
If a 3-point hitch fault occurs, all automatic 3-point control is disabled and only
momentary raise and lower is allowed via the paddle switches.
Note:
When the optional cargo bed is installed, the 3-point hitch position sensor
works in conjunction with the bed active switch to limit the maximum lift arm
height.
Testing the 3-Point Hitch Position Sensor
The 3-point position sensor and its circuit wiring can be tested as a T1: TEC
input using the InfoCenter Display; refer to
Using the InfoCenter Display for
Troubleshooting (page 3–23)
. If testing determines that the sensor and its circuit
wiring are not functioning correctly, proceed with the following test procedure:
1. Park the machine on a level surface and lower any attachments. Use
the status display and record the hitch position number if possible before
stopping the engine.
2. Disconnect the frame wire harness and remove the position sensor. Check
the sensor and the harness connector for damage or corrosion.
3. Connect pin 1 to a 5 VDC power supply, and connect pin 2 to ground.
4. Using a multimeter (DC voltage setting) with the sensor rotated fully
counterclockwise, approximately 0.5 VDC should be present at pin 3.
5. Using a multimeter (DC voltage setting) with the sensor rotated fully
clockwise, approximately 4.5 VDC should be present at pin 3.
6. Replace the position sensor if necessary:
Outcross 9060
Page 6–51
Electrical System: Electrical Component Testing
18234SL Rev B
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