214323 103 Revision A
• 3.8.2 Case IH 2300/2500 and 5088/6088/7088 Combines, page 107
• 3.8.3 Case IH 5130/6130/7130, 7010/8010, 7120/8120/9120, and 7230/8230/9230 Combines, page 111
• 3.8.4 Challenger 6 and 7 Series Combines, page 122
• 3.8.5 Gleaner R62/R72 Combines, page 129
• 3.8.6 Gleaner R65/R66/R75/R76 and S Series Combines (Except S9 Series), page 133
• 3.8.7 Gleaner S9 Series Combines, page 142
• 3.8.8 John Deere 50 Series Combines, page 156
• 3.8.9 John Deere 60 Series Combines, page 165
• 3.8.10 John Deere 70 Series Combines, page 172
• 3.8.11 John Deere S and T Series Combines, page 178
• 3.8.13 CLAAS 500 Series Combines, page 202
• 3.8.14 CLAAS 700 Series Combines, page 214
• 3.8.15 New Holland Combines CX/CR Series (CR Series – Model Year 2014 and Earlier), page 223
• 3.8.16 New Holland Combines (CR Series – Model Year 2015 and Later), page 233
3.8.1 Sensor Output Voltage Range – Combine Requirements
The auto header height control (AHHC) sensor output must be within a specific voltage range for each combine, or
the AHHC feature will not work properly.
Table 3.13 Sensor Voltage Limits
Combine
Low Voltage Limit High Voltage Limit
Minimum Voltage
Range
Challenger, Gleaner A, Gleaner S,
Massey Ferguson
0.7 V 4.3 V 2.5 V
Case IH 5088/6088/7088, 5130/6130/
7130, 7010/8010, 7120/8120/9120, and
7230/8230/9230
0.7 V 4.3 V 2.5 V
Case IH 2300/2500
3.0 V 7.0 V 4.0 V
Gleaner R and S Series
0.7 V 4.3 V 2.5 V
John Deere 50, 60, 70, S, and T Series
0.7 V 4.3 V 2.5 V
CLAAS 500/600/700 Series
0.7 V 4.3 V 2.5 V
New Holland CR/CX - 5 V system
0.7 V 4.3 V 2.5 V
New Holland CR/CX - 10 V system
3.0 V 7.0 V 4.1–4.4 V
NOTE:
Some combine models do not support checking sensor output voltage from cab (early 23/2588 series, CLAAS
500/700 series). For these models, check output voltage manually. Refer to Manually Checking Voltage Range,
page 104.
OPERATION
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