MacDon FD75 OM User Manual
Page 76
1.
Position the header 6 in. (150 mm) above the ground.
Unlock the adapter float.
NOTE:
If the header is not on down stops during the
next two steps, the voltage may go out of range
during operation, causing a malfunction of the
Auto Header Height system.
2.
The pointer (A) on the float indicator box should point
at zero. If it does not point at zero, adjust the cable
take-up bracket (B) until it does.
Figure 4.41: Float Indicator Box
3.
On
the
combine
monitor,
go
to
the
FIELD
page, and then press the diagnostics icon.
The
MISCELLANEOUS page displays.
4.
Press the VMM DIAGNOSTIC button (A). The VMM
DIAGNOSTIC page displays.
Figure 4.42: Combine Display
5.
Go to the ANALOG IN tab, and then select VMM
MODULE 3 by pressing the text box below the four
tabs.
The voltage from the Auto Header Height
sensor is now displayed in the header height right
pot and header height left pot. Both readings should
be identical.
Figure 4.43: Combine Display
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