214325
230
Revision A
Combine
Lower Voltage Limit
(+/- 0.2)
Upper Voltage Limit
(+/- 0.2)
Minimum Range
Difference
CLAAS 500/600/700
Series
0.7 V
4.3 V
2.5 V
Check sensor
’
s output voltage range at float indicator according to the instructions that follow.
Checking Sensor
’
s Output Voltage Range
The auto header height sensor output must be within a specific range for feature to work properly. To check
sensor
’
s output voltage range, follow these steps:
1.
Position header 150 mm (6 in.) above ground, and rest it on safety props. Unlock adapter float.
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.
Figure 5.196: Float Indicator with Auto Header
Height Sensor
2.
The pointer (A) on float indicator should point at
0
. If it
does not, adjust cable bracket (B) until pointer (A) on
float indicator points to
0
.
Figure 5.197: Float Indicator Reading 1 V
3.
Measure voltage between ground and signal wires at
AHHC sensor in float indicator with a voltmeter (A).
NOTE:
The voltage reading should be below
4.3 V
.
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