MacDon PW8 - Calibrating Auto Header Height Control - Gleaner R65;R66;R75;R76 and S Series

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Figure 4.106: Control Handle
3. Briefly press button (A) on the control handle. The AHHC
light should change from flashing to solid and the header
should drop toward the ground. The AHHC is now engaged
and the height and sensitivity settings can be adjusted.
4.9.3 Calibrating Auto Header Height Control – Gleaner
®®
R65/R66/R75/R76 and
S Series
The auto header height control (AHHC) sensor output must be calibrated for Gleaner
®
R65/R66/R75/R76 and non-S9
S series combines, or the AHHC feature will not work properly.
NOTE:
The calibration procedure should be performed on flat, level ground without the header clutches engaged. The header
height and header tilt settings must NOT be in auto or standby mode. The engine rpm must be above 2000 rpm. The
header tilt option on 2004 and earlier model combines does NOT work with MacDon headers. This system will have to be
removed and disabled in order to calibrate the AHHC system. Refer to the combine operator’s manual for instructions.
To set up the AHHC system on Gleaner
®
S9 Series combines, refer to 4.10 Gleaner
®
S9 Series Combines, page 161.
NOTE:
Changes may have been made to the combine controls or the display since this document was published. For instructions,
refer to the combine operator’s manual for updated information.
AUTO HEADER HEIGHT CONTROL