General operation and in-field adjustments, Transport locks, Folding operation – Great Plains 4336 DH Operator Manual User Manual
Page 27: Unfolding operation, Folding operation unfolding operation
Great Plains Manufacturing, Inc.
Operating Instructions
23
05/22/2012
556-100M
General Operation and In-Field
Adjustments
1.
Raise the disk completely and unfold the machine. Make
sure the fold cylinders are fully extended to allow the
wings to fully flex in the field. Proceed into the field and
lower the machine to the desired operating depth.
2.
If satisfied, set the depth and then proceed through the
field, observing the disk for levelness, side to side and
fore to aft. Although the disk was preset, See “First
Time Field Adjustments” on page 16, to level machine.
Certain field conditions can cause the disk to vary from
center to wings and front to rear when being pulled
through the ground. A final adjustment may need to be
made to the disk harrow.
3.
If the center is running deeper because of it following
the tractor in soft soil, the wings may need to be set in
slightly deeper (with the eyebolts) and then the entire
machine set slightly shallower (with depth stop).
Transport Locks
Refer to Figure 18
4.
The auto transport locks
are designed for operator
convenience and safety during daily field to field opera-
tions. The auto locks will lock the lift and wings at the
same time. The manual u-shaped locks
will only lock
the lift (not wings) and should be used for machine main-
tenance and long term storage.
Folding Operation
5.
Always lift machine completely up before folding wings.
After machine is folded, lift the machine again to its full
raised position. Visually check that both auto locks are in
position. Set the machine down onto the auto locks.
Unfolding Operation
6.
Raise the machine up to its fully raised position. Unfold
the machine. If an auto lock is damaged see mainte-
nance section for instructions. The auto locks can be
temporally disabled by flipping the locks around to the
front. This is required if you need to set the machine on
the ground while folded.
Figure 17
Auto Transport Locks
42115
1
1
2
Figure 18
Manual Transport Locks
42125
2