Challenger 6 And 7 Series Combines; Checking Voltage Range From Combine Cab (Challenger 6 And 7 Series) - MacDon FFT FD75 Assembly Instructions Manual

NOTE:
The ideal ground pressure—in most cases—is one
number (on float indicator box) above header
suspended off ground. For example, if float indicator
needle (A) is positioned at 0 with header suspended off
ground, then ideal ground pressure will be achieved
with needle positioned at 1. Operating with heavier
pressures can wear cutterbar wearplate prematurely.

5.1.4 Challenger 6 and 7 Series Combines

Checking Voltage Range from Combine Cab (Challenger 6 and 7 Series)

NOTE:
Changes may have been made to combine controls or display since this document was published. Refer to
combine operator's manual for updates.
1. Position header 150 mm (6 in.) above ground, and unlock adapter float.
2. Check that float lock linkage is on down stops
(washer [A] and nut [B] cannot be moved) at both
locations.
NOTE:
If header is not on down stops during next two steps,
voltage may go out of range during operation causing a
malfunction of auto header height control (AHHC)
system.
214325
SETTING UP AUTO HEADER HEIGHT CONTROL
159
Figure 5.46: Float Indicator Box
Figure 5.47: Float Lock
Revision A