Great Plains NTA3010 Operator Manual - Manual (Page 35)

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 31
2014-03-26 Table of Contents Index 160-219M-A
Opener Operation
The “lowered” position of the opener frame is regulated
by adjustable valves, factory set for 2in coulter depth.
See “Coulter Frame Height” on page 39 for adjustment.
The hydraulic system distributes and regulates weight
transfer to the wings, ensuring consistent soil penetration
by the openers across the drill–even on uneven ground.
Refer to Figure 37
1.
Check drill valve handle, which needs to be in FIELD
position for the hydraulic weight-transfer to function.
2. On the seed monitor terminal, set the Fold/Unfold
function to On using a soft key. This enables the
solenoid valve for the circuit.
3. Engage tractor hydraulics for the drill’s fold circuit.
Lock hydraulic lever forward during field operation for
constant hydraulic flow to openers.
Tractor-Specific Circuit Operation
John Deere tractors with Sound-Gard™ Body
Use lever lock clip, John Deere part number R52667,
to lock lever forward. See your tractor dealer for clip
purchase and installation.
John Deere 7000 Series tractors
Rotate valve detent selector to motor position to lock
lever in forward position.
John Deere 8000 Series tractors
Set timer to continuous. Push lever forward until
detent clicks.
Case-IH Magnum™ tractors
Lock lever forward in detent position. You may need
to turn up detent pressure to its maximum setting.
Do not tie hydraulic lever past detent position with a
strap. See your tractor dealer for hydraulic-system
details.
Other Tractors
Lock lever forward in detent position. You may need
to turn up detent pressure to maximum or use a
mechanical detent holder to hold lever forward. See
your tractor dealer for proper means of providing
constant flow to openers.
Figure 37
Drill Valve Set for Field
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