Great Plains NP30A 30-foot Operator Manual - Manual (Page 126)

122 NP30A or NP40A Table of Contents Index Great Plains Manufacturing, Inc.
407-502M Table of Contents Index 2014-05-20
Unfold Stop Adjustment
This applies to 2103+ 5-Section applicators only.
Refer to Figure 91
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 vertical 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 level surface. Raise and fold
(page 61). Install lift-assist lock channels (page 44)
and parking stands (page 36).
3. Set the FOLD / FIELD switch 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-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 incorrect, correct that, at the current
sensor height. Fold and unfold to see if further
adjustment is required.
5. To adjust the sensor, loosen the bolts securing the
sensor
to the bracket. Do not adjust the
actuator position.
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
29 16
2
1
-
+
Figure 91
Unfold Stop Proximity Sensor
34991
1
2
29
29 16 3
29
16