Raising and lowering openers, Opener lock up, Lock up openers – Great Plains 3S-4000F Operator Manual User Manual
Page 38: Unlock openers, Raising and lowering openers opener lock up
34
3S-4000
Great Plains Manufacturing, Inc.
195-394M
2014-06-10
Raising and Lowering Openers
Negative Weight: Raising openers on unfolded, unhitched drill
will cause drill tongue to rise suddenly, which could cause
serious injury or death. Be certain that drill is hitched securely
to your tractor draw bar and the safety chain is securely
attached to tractor before raising openers and unfolding drill.
Opener sub-frames are on a dedicated hydraulic circuit.
Openers raise and lower independently of the drill frame
(which is raised and lowered by the transport lift circuit).
When lowered, the opener circuit can use live hydraulic
power to regulate down pressure. To operate with live
hydraulic power, connect the opener lift circuit to the #1
remote hydraulic circuit or the circuit designed for
HYDRAULIC MOTOR control. On many CLOSED
CENTER or PRESSURE/FLOW COMPENSATED
tractors the #1 circuit is the circuit designed to supply live
hydraulic power to remote locations.
On the standard 3S-4000 drill, the openers raise and
lower as a group, from a tractor cab lever. If the Point
Row Option is installed, each section can raise and lower
independently, using switches on the point row control
module in the tractor cab.
If the Two Outlet conversion kit is installed, a selector
valve near the hitch must be operated to switch between
Opener Lift and Transport Lift. During field operations,
this valve is in the Opener Lift position.
Opener Lock Up
The openers must be locked up for transporting or for
working under the drill.
Note: Opener transport lock handles can be moved with
openers up or down, but transport locks will only
engage after openers are raised completely and
disengage after openers are lowered completely.
There are two lock handles on each drill section.
Lock Up Openers
Refer to Figure 25
1.
Position opener transport handles in ROAD position.
2.
Raise openers completely.
Unlock Openers
Refer to Figure 26
1.
Position opener transport lock handles in FIELD
position.
2.
Raise openers completely.
Figure 25
Opener Lock Up
15549
Figure 26
Opener Unlock
15548