GREAT PLAINS NP2540, Operator'S Manual, Page: 137 / 196

NP2540 Table of Contents Index Maintenance and Lubrication 133
2019-04-12 Table of Contents Index 417-459M
Stop Fold Adjustments
Machines With Rectangular Proximity
Sensors.
 If the machine has round proximity sensor, see the
information for round proximity sensors (page 135).
Unfold Stop Adjustment
Refer to Figure 89
During unfold (FOLD / FIELD switch 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
sensor 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. Check the sensor to actuator ( - ) gap at the
affected wing pivot. With the actuator near the
marked region on the sensor, the gap must be
1
/
8
to
1
/
4
inch (3.2 to 6.3 mm).
If the gap is not correct, correct the gap at the
current sensor height.
5. To adjust the sensor, loosen the bolts that fasten
the sensor to the bracket.
•
To lower the angle at which the wing stops, raise
the sensor.
•
To raise the angle at which the wing stops, lower
the sensor.
6. Secure the bolts. Fold and unfold to test.
3
42
2
1
-
+
Figure 89
Unfold Stop Proximity Sensor
36976
1
2
42
42 16 3
42