OPERATION
Calibrating the Auto Header Height Control ( Case IH 2300/2500 and 5088/6088/7088)
For best performance of the Auto Header Height Control (AHHC) system, perform ground calibration with
center-link set to D. When calibration is complete, adjust the center-link back to desired header angle. Refer to
3.7.3 Header Angle, page 66.
NOTE:
Changes may h
ave been made to the combine controls or display since this document was published. Refer to
the combine o
perator’s manual for updates.
To calibrate th e AH H C sys tem, follow these steps:
1. Ensure center-link is set to D.
2. Set the flotation on the header and adapter package,
refer to 3.7.2 Header Float, page 58. Position fore-aft
in mid span.
3. Start combine engine, but do NOT have separator or
feeder house engaged.
4. Locate header control switch (A) on the right-hand
console, and set to "HT" (this is AHHC m ode).
Figure 3.121: Right-Hand Console
5. Press the header lower switch (A) on the joystick lever
until the adapter and header are fully lowered. You may
need to hold the switch for several seconds.
6. Press the header raise switch (A) on the joystick lever.
The header should stop at about the halfway point.
Continue holding the header raise switch, and the
header will rise until the feeder house reaches its
upper limit. The AHHC system is now calibrated.
NOTE:
If float was set heavier to complete the ground
calibration procedure, adjust to recommended
operating fl oat after the calibration is complete.
Figure 3.122: Joystick Lever (Case IH
2300/2500)
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