
2019-04-12
417-459M
NP2540
Maintenance and Lubrication
136
Field Fold Stop Adjustment
During field fold (FOLD / FIELD sensor in FIELD), the
inner wing sections are intended to stop 5 to 10°
above wings-level relative to the center section
. The
stopping point is controlled by an angled 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.
4. Set the FOLD / FIELD sensor to FIELD. Retract the
fold/lift circuit until the wings stop at “gull wing” (field
lift, page 50). Set the circuit to Neutral. Shut off the
tractor.
5. 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.
6. 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.
7. Fold and unfold the wings to check the adjustment.
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+
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Figure 92
Field Fold Stop Proximity Sensor
36950
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