MacDon PW8 - Chapter 4: Auto Header Height Control; Auto Header Height Control System Overview

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Chapter 4: Auto Header Height Control
Understand the operation of the auto header height control (AHHC) system and how to configure it to work with your
combine.
4.1 Auto Header Height Control System Overview
The auto header height control (AHHC) feature works in conjunction with the AHHC option available on certain combine
models.
NOTE:
This section does not apply to Versatile combines.
Sensors installed at each end of the header send a signal to the combine allowing it to maintain a consistent cutting height
as the header follows the contours of the ground.
Headers are factory-equipped for AHHC; however, before using the AHHC feature, do the following:
1. Ensure that the AHHC sensor’s output voltage range is appropriate for the combine. For more information, refer to 4.4
Height Sensor Output Voltage Range – Combine Requirements, page 111.
2. Prepare the combine to use the AHHC feature.
3. Calibrate the AHHC system so that the combine can correctly interpret data from the height sensors on the header.
Once calibration is complete, you are ready to use the AHHC feature in the field. For each make and model of
combine, certain settings can be used to improve the performance of AHHC feature.
NOTE:
If your header is not equipped to work with a specific combine model, you will need to install an appropriate combine
completion package onto the header. Completion packages come with instructions for installing height sensors.
Refer to the following instructions for your specific combine model:
• 4.5 IDEAL
™
Series Combines, page 117
• 4.6 Case IH 5130/6130/7130 and 5140/6140/7140 Midrange Combines, page 129
• 4.7 Case IH 7010/8010, 7120/8120/9120, 7230/8230/9230, and 7240/8240/9240 Combines, page 136
• 4.8 Challenger
®
6 Combines, page 145
• 4.9 Gleaner
®
R65/R66/R75/R76 and S Series Combines – Except S9 Series, page 152
• 4.10 Gleaner
®
S9 Series Combines, page 161
• 4.11 John Deere 60 Series Combines, page 175
• 4.12 John Deere 70 Series Combines, page 181
• 4.13 John Deere S and T Series Combines, page 187
• 4.14 New Holland Combines CX/CR Series (CR Series – Model Year 2014 and Earlier), page 198
• 4.15 New Holland Combines (CR Series – Model Year 2015 and Later), page 206