Great Plains 1300 13-Foot Operator Manual - Manual (Page 24)

20 1300 and 1300F Table of Contents Index Great Plains Manufacturing, Inc.
175-157M Table of Contents Index 2014-04-15
Opener Operation
Opener sub-frame is on a hydraulic circuit that is shared
with markers if markers are installed. The openers raise
and lower as a group, controlled from a tractor cab lever.
If markers are installed, and unlocked, each marker side
unfolds and refolds, alternating left-to-right, with each
opener lift and lower cycle.
Lowering and Raising Openers
The following instructions presume that the openers are
raised and locked up for transport.
Refer to Figure 12
1.
Determine the down-pressure pin hole , (lettered
A-E), to be used for the current conditions. If you
have no preference developed, plan to use hole “E”.
See page 32 for further information.
2. If markers are installed, verify that markers are
folded and secured with transport pins. See “Secure
Markers” on page 18. If not, secure them during lift
operations to secure pivot stop for transport.
Refer to Figure 11 and Figure 12
3.
With the drill hitched to a suitable tractor, retract the
lift cylinder slightly to free the pin
in its transport
lock hole position.
4. Put the tractor circuit control in neutral to hold
cylinder position.
5. Remove the pin from the transport lock position and
transfer it to the desired down-pressure adjustment
hole. Secure the pin.
6. Extend the circuit to lower the openers.
7. When the lift cylinder has reached the end of its
travel, set the tractor circuit lever to Neutral to hold it
there. Do not set the circuit to Float, or down
pressure is significantly reduced.
At the start of planting, stop early in the first pass and
check drill level. The most consistent planting is achieved
when the drill frame is level with the ground, and the tops
of the opener frames are level with the ground.
If planting is unsatisfactory in tractor tire tracks, see
“Opener Height” on page 35.
Check periodically during planting. Drill weight changes
as seed and fertilizer are applied.
Crushing Hazard:
You will be seriously injured or killed if you are
caught between raising openers and drill frame.
Always stop tractor engine, set parking brake, and
remove key before adjusting or servicing openers.
Keep bystanders well away during drill operation.
Negative Tongue Weight Hazard:
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.
Marker Pinch/Crush/Sharp Object Hazards:
Secure markers before setting pivot pin. Moving
markers can pinch at mounts crush under arms.
Marker disks are sharp. If not secured by transport
pins, markers will fold and unfold during lift and
lower operations.
Figure 11
Unlocking Openers
16636
2
1
2
3
Figure 12
Setting Down-Pressure Pin
16652
3
1