215184
331
Revision A
9.1.5
Case IH 5088/6088/7088 Combines
Calibrating the Auto Header Height Control
–
Case IH 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. For instructions, refer to the
header operator
’
s manual.
NOTE:
Changes may have been made to the combine controls or display since this document was published. For instructions, refer
to the combine operator
’
s manual for updates.
WARNING
Check to be sure all bystanders have cleared the area.
NOTE:
If header float is set too light, it can prevent calibration of AHHC. You may need to set the float heavier for calibration
procedure so header doesn
’
t separate from the float module.
1003785
A
Figure 9.53: Right Console
1.
Ensure center-link is set to
D
.
2.
Set the float. For instructions, refer to operator
’
s manual
for instructions.
3.
Position fore-aft in midspan.
4.
Start the combine engine, but do
NOT
engage separator or
feeder house.
5.
Locate HEADER CONTROL switch (A) on the right console,
and set to HT (this is AHHC mode).
1003786
A
Figure 9.54: Control Handle
–
Case IH 2300/2500
6.
Press HEADER LOWER switch (A) on the control handle until
the float module and header are fully lowered. You may
need to hold the switch for several seconds.
7.
Press HEADER RAISE switch (A) on the control handle. 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 AHHC calibration
procedure, adjust to recommended operating float after
the calibration is complete.