Great Plains 4000TM Operator Manual - Manual (Page 26)

22 1200-4000TM Table of Contents Index Great Plains Manufacturing, Inc.
586-288M Table of Contents Index 10/30/2012
Wing Fold Assist 3500TM
Refer to Figure 20
Note: Wings need to be folded up when installing and adjust-
ing the wing fold assist to prevent damage to sensor
and brackets. The machine will be shipped with sensor
rocker LH and RH
installed.When the proximity sen-
sor bracket are installed the adjustment is very criti-
cal. See Pre-Delivery manual for proper installation.
30. Adjust the proximity sensor bracket 1” from back side
of hinge plate to edge of bracket as shown. Tighten nuts
on u-bolts
to 76 ft-lb.
31. Loosen nuts (one on front and one on back side of
sensor bracket ) adjust the sensor to 1/8” to 1/4”
away from bracket as shown.
32. Re-tighten nuts to secure sensor .
Note: In order for the fold assist to work, the electrical con-
nector must be hooked to the tractor. The fold assist will
allow the operator to run very low down pressure to the
wings and still have ample pressure to the wings and
still have ample pressure to untold the unit after trans-
porting to the field.
If the system should fail for any reason, the unit may still
be unfolded but the operator may need to close the
down pressure valve, thereby increasing the unfold
pressure to the wings. The operator may need to reset
the pressure for field use.
2
Figure 20
Wing Fold Assist
42862
1
3
4
5
4
1
2
2
3
4
2 5
4 5