
NP2540
Maintenance and Lubrication
135
2019-04-12
417-459M
Machines With Round Proximity Sensors.
If the machine has rectangular proximity sensors, see
the information for rectangular proximity
sensors (page 133).
Unfold Stop Adjustment
During unfold (FOLD / FIELD sensor in FOLD), the inner
wing sections are intended to stop 0 to 5° above
wings-level relative to the center section . The stopping
point is controlled by a proximity sensor
at each
center/wing hinge. If a wing does not stop in this range,
adjust the proximity sensor.
1. Verify that the misalignment is not caused by air in
the hydraulic system. Do not use the proximity
adjustment to compensate for hydraulic problems.
2. Move the applicator to a solid, level surface. Raise
and fold (page 55). Install lift-assist lock
channels (page 47) and parking stands (page 40).
3. Set the FOLD / FIELD sensor to FOLD. Extend the
fold/lift circuit to unfold until the inner wings stop.
Set the circuit to Neutral. Shut off the tractor.
4. Turn the tractor key sensor to ON so there is
electrical current to the fold proximity sensors. There
is a red and a green LED in each of the fold proximity
sensors.
•
If no LED is illuminated at any of the fold proximity
sensors, check the power source for the tractor.
•
If neither LED is illuminated at a fold proximity
sensor, check the electrical circuit for that fold
proximity sensor.
•
If the green LED is illuminated, the fold proximity
sensor is adjusted correctly.
•
If the red LED is illuminated, the gap between the
fold proximity sensor and the actuator is not correct.
5. To adjust the gap, loosen the front adjusting nut at
the sensing end of the fold proximity sensor. Adjust
the rear adjusting nut until the red LED illuminates.
If the actuator is bolted to the wing, do not adjust the
position of the actuator.
•
To lower the angle at which the wing stops, raise the
fold proximity sensor in the sensor mount. Make sure
the green LED is still illuminated and tighten the
nuts.
•
To raise the angle at which the wing stops, lower the
fold proximity sensor in the sensor mount. Make sure
the green LED is still illuminated and tighten the
nuts.
6. Fold and unfold the wings to check the adjustment.
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Figure 91
Unfold Stop Proximity Sensor
36951
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