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4.14 New Holland Combines CX/CR Series (CR Series – Model Year 2014
and Earlier)
To make your header’s auto header height control (AHHC) system compatible with New Holland CX and CR series combines
(CR models of model year 2014 and earlier), you must check the height sensor voltage range, engage and calibrate the
AHHC system, and adjust the sensitivity, header rise and fall rates, and the cutting height presets.
NOTE:
For New Holland CR models 6.80, 6.90, 7.90, 8.90, 9.90, and 10.90, refer to 4.15 New Holland Combines (CR Series – Model
Year 2015 and Later), page 206.
4.14.1 Checking Voltage Range from Combine Cab (New Holland CX/CR Series)
To ensure that the auto header height control (AHHC) system on your header works correctly with your New Holland CX or
CR series combine, the output voltage from the header height control sensors must be verified.
NOTE:
Changes may have been made to combine controls or display since this document was published. Refer to combine
operator’s manual for updates.
DANGER
Check to be sure all bystanders have cleared the area.
1. Raise the header until the header wheels are 150 mm (6 in.) above the ground.
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Figure 4.194: New Holland Combine Display
2. Select DIAGNOSTICS (A) on the main page. The
DIAGNOSTICS page appears.
3. Select SETTINGS. The SETTINGS page appears.
AUTO HEADER HEIGHT CONTROL