Raising and lowering (lift), Raising, Lowering – Great Plains 3N4010HDA Operator Manual User Manual
Page 27: Raising lowering
Great Plains Manufacturing, Inc.
Operating Instructions
23
2013-09-24
196-444M
Raising and Lowering (Lift)
The drill Lift function is used only when the drill is
unfolded. The drill must be fully lifted and locked when
folded.
When unfolded, the lift function is used for headland
turns, adjustments and maintenance, and in preparation
for folding.
Raising
1.
Operate the tractor lever for the Lift circuit to fully
extend the lift cylinders. Set lever to Neutral to hold
at lift. If raising for turns or short field moves, lift is
complete.
2.
If lifting for adjustments, maintenance or in prepara-
tion for Fold, install lift locks.
Lift Locks
Refer to Figure 17
3.
Remove lock channels from storage locations on the
rockshaft.
4.
Install lock channels over extended lift cylinder rods.
Six cylinder rods total.
Lowering
Lower drill only when fully unfolded.
1.
Extend lift cylinders to fully raised (in case cylinders
have settled against lock channels). Set circuit lever
to neutral.
2.
Remove lock channels and stow them at their stor-
age locations.
3.
Retract lift cylinders and fully lower drill.
Figure 17
Rear Lift Cylinder Lock
20264
Figure 18
Rockshaft Lock Channel
27189