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| Question on an old school PF3000 yield monitor on a TR89. The moisture screw was all gummed you, finally got the screw freed up and motor to turn but only if we put 12V right to the motor. We have 12V going into the moisture box but can’t get power out to run the motor. Is there a sensor or something that tells the screw when to engage. What mechanism is inside the box to transmit power to motor? | |
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