Sensor Operation - MacDon FlexDraper FD1 Series Operator's Manual

Refer to the following instructions for your specific combine model:
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3.8.3 Case IH 5088/6088/7088 Combines, page 139
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3.8.5 Case IH 7010/8010, 7120/8120/9120, 7230/8230/9230 and 7240/8240/9240 Combines, page 150
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3.8.6 Challenger and Massey Ferguson 6 and 7 Series Combines, page 166
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3.8.7 Gleaner R65/R66/R75/R76 and S Series Combines, page 173
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3.8.8 Gleaner S9 Series Combines, page 183
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3.8.9 John Deere 60 Series Combines, page 197
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3.8.10 John Deere 70 Series Combines, page 205
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3.8.11 John Deere S and T Series Combines, page 212
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3.8.13 CLAAS 500 Series Combines, page 242
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3.8.14 CLAAS 600 and 700 Series Combines, page 251
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3.8.15 New Holland Combines (CR/CX Series-Pre-2015 Model Year), page 261
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3.8.16 New Holland Combines (CR Series-Model Year 2015 and Later), page 271

3.8.1 Sensor Operation

The position sensors supplied with the auto header height control (AHHC) system are hall-effect sensors
containing sealed connectors. Normal operating signal voltages for the sensors fall between 10% (0.5 VDC) and
90% (4.5 VDC). An increase in sensor voltage correlates to an increase in header height.
Sensor errors result in a 0 V signal, indicating a faulty sensor or incorrect supply voltage.
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OPERATION
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