214323
277
Revision B
4.20.2
Checking Voltage Range from Combine Cab
–
New Holland CR Series
To ensure that the auto header height control (AHHC) system on your header works correctly with your New Holland CR
Series combine (model year 2015 or later), the output voltage from the header height control sensors must be verified.
NOTE:
Changes may have been made to combine controls or display since this document was published. Refer to combine
operator
’
s manual for updates.
DANGER
Check to be sure all bystanders have cleared the area.
1.
Position the header 150 mm (6 in.) above the ground, and unlock the adapter float.
1001416
A
B
Figure 4.303: Float Lock
2.
Check that the float lock linkage is on the down stops at
both locations. When the linkage is on the down stops,
washer (A) and nut (B) cannot be moved.
NOTE:
If the header is not on the down stops, the float is too light.
Readjust the float if necessary.
NOTE:
If the header is not on the down stops during this
procedure, the voltage may go out of range during
operation, causing the AHHC system to malfunction.
1003464
A
B
Figure 4.304: Float Indicator Box (5 Volt AHHC Sensor
Assembly Shown)
3.
Adjust cable take-up bracket (B) (if necessary) until
pointer (A) on the float indicator is on 0.
4.
Ensure that the header float is unlocked.
Summary of Contents for FD75
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