MAC215986
163
Revision A
Checking and adjusting sensor output voltage when the reel is lowered
6.
Engage the parking brake.
7.
Start the engine. For instructions, refer to the combine operator
’
s manual.
8.
Lower the reel fully.
9.
Use the combine display or a voltmeter (if measuring the sensor manually) to measure the voltage range when the
reel is lowered. Refer to Table
for range requirements.
Table 3.25 Reel Height Sensor Voltage Limits
Combine Type
Recommended Voltage Range
Voltage with Reel Raised
Voltage with Reel Lowered
Case/New Holland
0.7
–
1.1 V
3.9
–
4.3 V
10. Shut down the engine, and remove the key from the ignition.
ϭϬϯϴϱϮϲ
C
A
B
D
E
Figure 3.218: Reel Height Sensor
–
Right Reel Arm
with Reel Down
11. Using a voltmeter, measure the voltage between the
ground (pin 2 wire) and the signal (pin 3 wire) at reel height
sensor (B).
12. Check if the voltage is within the recommended
voltage range. If the voltage is not within range, loosen jam
nuts (D) and (E), and adjust the rod length. Hand-tighten
the jam nuts, and then use a wrench to tighten them
another quarter-turn.
Checking and adjusting sensor output voltage when the reel is raised
13. Start the engine, and fully raise the reel.
14. Use the combine display or a voltmeter (if measuring the sensor manually) to measure the voltage range when the
reel is raised. Refer to Table
for range requirements.
15. Shut down the engine, and remove the key from the ignition.