Pre-start checklist, Raising and lowering openers, Opener lock up – Great Plains 2S-2600HDF Operator Manual v1 User Manual
Page 27: Lock up openers, Pre-start checklist raising and lowering openers
Great Plains Manufacturing, Inc.
Operating Instructions
23
2014-05-16
195-440M
Pre-Start Checklist
Raising and Lowering Openers
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
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 designed to supply live hydraulic power to
remotes.
On the standard 2S-2600HD 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 raised and locked up for folding,
transporting or for working under the drill.
Refer to Figure 17 and Figure 18
Each of the four opener lift assemblies has wire rod lock
handle
, and a cylinder lock status indicator
on the
lock hook.
Note: Opener transport lock handles
move with open-
ers up or down, but locks only engage if openers
are raised completely or disengage if openers are
lowered completely. There are 4 assemblies, one
on each wing section near machine center (Figure
18
), and one on each gauge wheel (Figure 17).
Lock Up Openers
1.
Position opener transport handles in ROAD position.
2.
Raise openers completely.
❑ Lubricate the drill as indicated under Lubrication,
“Maintenance and Lubrication” on page 67.
❑ Check the tires for proper inflation according to “Tire
❑ Check for worn or damaged parts and repair or
replace before going to the field.
❑ Check all nuts, bolts and screws. Tighten bolts as
specified on “Torque Values Chart” on page 96
Negative Tongue 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 drawbar and the safety chain
is securely attached to tractor before raising openers and
unfolding drill.
Figure 17
Gauge Wheel Opener Lock-Up
15549
1
2
Figure 18
Center Frame Opener Lock-Up
17353
1
2
1
2
1