MAC215986
205
Revision A
3.10.2
Sensor Output Voltage Range
–
Combine Requirements
The auto header height control (AHHC) sensor output must be within a specific voltage range for each combine, or the
AHHC feature will not work properly.
Table 3.30 Combine Voltage Limits
Combine
Lower
Voltage
Limit
Upper
Voltage
Limit
Range
New Holland CR/CX - 5 V system
0.7 V
4.3 V
2.5 V
New Holland CR/CX - 10 V system
2.8 V
7.2 V
4.1
–
4.4 V
3.10.3
Manually Checking Voltage Limits
In order for the auto header height to function properly the voltage needs to be set properly.
NOTE:
Some combines can check the voltages from the cab. For instructions, refer to the instructions for your combine.
DANGER
To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key
from the ignition before leaving the operator
’
s seat for any reason.
1.
Start the engine. For instructions, refer to the combine operator
’
s manual.
2.
Park the combine on a level surface.
3.
Position the header so that the cutterbar is 254
–
356 mm (10
–
14 in.) off the ground.
Checking sensor upper voltage limit
1031986
A
Figure 3.297: Center-Link
4.
Extend the guard angle until header angle indicator (A) is
at
E
.
