214325 143 Revision A
Figure 5.6: AHHC Sensor Assembly for Use
with Lexion Combines
1. Complete the following steps to adjust high
voltage limit:
a. Extend guard angle fully; header angle indicator
should be at D.
b. Position header 152–254 mm (6–10 in.) above
ground; float indicator should be at 0.
c. Loosen sensor mounting bolts (A).
d. Slide sensor support (B) to right to increase high
voltage limit and to left to decrease it.
e. Tighten sensor mounting bolts (A).
Figure 5.7: Most Common 5 Volt AHHC Sensor
Assembly
2. Complete the following steps to adjust low voltage limit:
a. Extend guard angle fully; header angle indicator
should be at D.
b. Fully lower header on ground; float indicator should
be at 4.
c. Loosen mounting bolts (A).
d. Rotate sensor (B) clockwise to increase low
voltage limit, and counterclockwise to decrease it.
e. Tighten sensor mounting bolts (A).
Figure 5.8: 10 Volt AHHC Sensor Assembly for
Use with Some New Holland Combines
SETTING UP AUTO HEADER HEIGHT CONTROL
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