Great Plains PM300 Assembly Instructions - Manual (Page 6)

6 Great Plains Mfg., Inc.
2/5/13 116-008M
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Sensor Tester -
for seed tube sensor testing on YP planters.
The Sensor Tester (part # AE6602) is primarily used to verify the operation of the sensor
located on the seed tube within a row unit.
Refer to Figure 8
1. Locate the row associated with the sensor
to be tested.
3. Connect the Seed Sensor Tester to the sensor
lead. Any object passing through the seed
tube and past the sensor eye, will cause the
sensor to emit a pulse. With the tester connected
to the sensor, drop some seed or feed a flexible
object like a zip tie through the seed tube. If the
sensor is working correctly, the
Note: The Seed Tube Sensor Tester operates on a 9 volt battery that is accessible through a door
in the back of the case. Make sure the battery is good before replacing a sensor.
2. Locate the wiring harness coming out of the
sensor and follow it up to the top of the row
unit where it connects to the row harness lead.
Fig. 8
Sensor Tester -
for application rate sensor testing on YP planters.
The Sensor Tester (part # AE6602) can be used in conjunction with the Application Rate
Sensor Adapter (part # AE2607) to verify the operation of the application rate sensor (shaft
speed sensor).
Refer to Figure 9
Fig. 9
3. Disconnect the application rate sensor lead at the extension harness and connect the assembly
made in step one to the application rate sensor.
Note: The Seed Tube Sensor Tester operates on a 9 volt battery that is accessible through a door
in the back of the case. Make sure the battery is good before replacing a sensor.
4. The application rate sensor will create 360 pulses per revolution of its input shaft. Every
pulse created will case the sensor tester to “beep” if the sensor is functioning properly.
1. Assemble the Seed Sensor Tester together with the
Application Rate Sensor Tester Adapter.
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2. Locate the wiring harness coming out of the application
rate sensor. On YP12 and YP16 planters, this will be
found at the end of the right wing drive shaft. On all others,
it will be found on the short shaft just below the seed drive
motor in the center of the implement. Follow the lead until
you find the three pin connection at the extension harness.
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MODEL 46436-117B SERIAL XXXXX e24 (360 COUNT APR) 02 0019 2010 03
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