The 1725NT utilizes an integral, stack-fold frame that allows for a transport width of approximately 3.05 m (10 ft) and a height of just over 4 m (13 ft). Operators who drive on narrow roadways or work in small fields will find the narrow transport frame, without lift-assist wheels, to be especially useful in situations where maneuverability is limited.

This design also allows for the vacuum to be integrated into the frame without adding clutter to the bar. This means a cleaner look with better visibility from the operator station.

The 1725NT also includes 40.6-cm (16-in.) notched disk markers in the base machine, with an option for less markers. These markers act independent of the frame position and are controlled by a selective control valve (SCV). The notched disk design allows for a more aggressive marking capability, especially in minimum-till or no-till conditions.

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56.4-L (1.6 BU) HOPPERS AVAILABLE IN BASE EQUIPMENT

The 1725NT utilizes a unique 56.4-L (1.6 bu) hopper that can be tilted and braced upwards to gain easy access to the meter for adjustments or cleanout.

This design also has a shutoff door to allow for meter access when seed is still in the hopper.

Row cleaners are a valuable tool in reduced tillage planting conditions. The row cleaner helps to clear residue from the path of the opener, ensuring good row-unit operation. The row cleaner utilizes two angled wheels which engage the soil surface and residue, sweeping them aside.

Row cleaners provide many agronomic benefits, including quicker soil warmup and germination, and reduced hair pinning of residue into the seed furrow. Row cleaners can also provide a smoother ride for the gauge wheels, resulting in less row-unit bounce and a more uniform seeding depth.

The screw-adjust unit-mounted row cleaner is mounted directly to the face plate of the row-unit, placing the ground-engaging components just in front of the row-unit opener blades and depth gauge wheels. This close proximity allows the gauge wheels to control the depth of the row cleaner as well as the row-unit.

This compact design also allows greater compatibility with fertilizer openers and other planter attachments.

SHARKTOOTH® WHEELS

The unit-mounted row cleaner features the SharkTooth wheel. The beveled, sharpened edge of the teeth on the SharkTooth aggressively cut tough residue that lies in the path of the row-unit. The curved tooth design sweeps a clear path for the openers and resists residue buildup.

The wheels are arranged in a staggered fashion with one wheel leading the other, ensuring complete clearing of the row-unit path. The wheels can also be run side-by-side if desired, by simply relocating the wheels to existing holes on the row cleaner bracket.

The bearing on the SharkTooth wheel is sealed and requires no regular maintenance. Bearing shields are used between the wheel and the mount bracket to prevent residue wrapping and buildup around the bearing housing.

ADJUSTABILITY

The unit-mounted row cleaner offers a convenient screw adjustment feature for changing the depth setting. The acme screw is enclosed within the structure of the mounting bracket, providing protection from the elements.

The adjustment knob for the screw adjustment is accessible from the top of the parallel arms. The knob can be adjusted by hand, or by using a socket.

The adjustment is detented in 1.6-mm (1/16-in.) increments, allowing for quick, easily repeatable adjustments across all rows of the planter.

An indicator rod and scale on the front of the row cleaner bracket indicate the current setting. If a condition is encountered where use of the row cleaner is not desired, it can be set so that the wheels do not engage the soil surface.

OPERATIONAL NOTES AND COMPATIBILITY

Use of row cleaners is not recommended when surface application pre-plant herbicide is used prior to planting. When using pre-plant incorporated herbicide, the row cleaner should be adjusted to minimize soil disturbance so as not to reduce the effectiveness of the incorporated herbicide.

Drive chain shields are recommended for use with row cleaner attachments.

Two different models of screw-adjust, unit-mounted row cleaners are available; the standard row cleaner for 762-mm (30-in.) row spacing and the narrow row cleaner for 508-mm (20-in.) or 558.8-mm (22-in.) row spacing.

NOTES:

1. Screw adjust, unit-mounted row cleaners are fully factory installed when ordered with the planter
2. Not compatible with use of frame-mounted coulter
3. Row spacing less than 762 mm (30 in.) requires the narrow row cleaner option.
4. For 1795 12/23, 12/24, 16/31, and 16/32 row machines, unit-mounted row cleaners are provided on the front rank of rows only.
5. For DB60 47R15 machines, unit-mounted row cleaners are provided on the row-units with short parallel arms only. They provide the 24 rows set on 762-mm (30-in.) spacing row cleaners.
6. Not compatible with the use combination of long parallel arms and MaxEmerge 5e row-units.

SharkTooth is a trademark of Yetter Manufacturing, Inc.

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SEEDSTAR 3 HP OVERVIEW

Building upon the foundation of previous SeedStar monitoring, the SeedStar 3 HP monitoring system takes planter monitoring to the next level. When paired with the GreenStar 3 2630 Display, the SeedStar 3 HP monitoring system provides critical information about the planting process to the operator within the tractor cab. SeedStar 3 HP is compatible with the GreenStar 3 2630, the Gen 4 4200 CommandCenter™ Display, the Gen 4 4600 CommandCenter Display, the 4240 Universal Display, and the 4640 Universal Display.

Detailed planter performance information allows the operator to make adjustments needed for planter optimization. After all, with rising costs, it is imperative to make sure that every seed is planted accurately and precisely within the seed furrow for maximum yield potential.

The SeedStar 3 HP planting functions are fully integrated with the full spectrum of Precision Ag Technology applications such as John Deere Section Control for Planters, GreenStar 3 2630 Display, AutoTrac™ assisted steering system, John Deere Operations Center, JDLink™ telematics system, and others. Integrated planting technologies, for better asset utilization and ease of use, is just part of what SeedStar 3 HP provides.

SEEDSTAR 3 HP MAIN RUN PAGE

SeedStar 3 HP has an updated main run page layout. With the use of tabs toward the top of the screen it is much easier to navigate through readings such as population, singulation, spacing, downforce, and ride quality. If for some reason an issue arises with a row-unit, the tab will turn red indicating there is an issue. The tab can be pushed and lead to what is causing the issue. Inside each tab, there will be a bar graph detailing information specific to that tab. The picture shows what a population bar graph looks like. This layout improves functionality and overall ease of use while planting.

SEEDSTAR 3 HP SEED SINGULATION MONITORING

Understanding meter singulation performance on the planter is critical to minimizing the amount of seed multiples and skips. As a result, the SeedStar 3 HP monitoring system provides real-time information, from the redesigned seed sensors placed in each brush belt cartridge, about the overall seed singulation performance.

As seen in the screen shot image above, overall singulation performance is seen in the tab at the top of the screen. Seed skip and multiple sources of information are displayed below the bar graph of the run page. This provides the operator a better understanding of relative seed multiple and skip data on a row-unit basis within one easy glance at this run page.

Also, within the seed singulation planter run page, information about row-units with the highest percentage of seed multiples and skips is provided in order to make necessary adjustments for better planter optimization.

SEEDSTAR 3 HP ROW-UNIT DOWNFORCE PLANTER RUN PAGE

With changing field conditions, it is important to monitor down force to ensure consistent seed placement. Seeds placed too shallow or too deep can impact emergence and affect yield.

With the SeedStar 3 HP monitoring system, row-unit downforce information is measured by the downforce sensor and sensor and transmitted to the GreenStar Display in the tractor cab. The row-unit downforce information is displayed on the top portion of this run page with more row-unit downforce information on the lower portion.

Active downforce takes SeedStar 3 HP even further by removing constant downforce adjustments from the operator and actively controlling the downforce system to maintain a desired target margin. Just set the row-unit target margin value and the active downforce system works automatically to make sure the planter maintains this value-achieving, precise soil penetration and consistent planting depth without sidewall soil compaction. This frees the operator from constantly making manual downforce adjustments as conditions change.

SEEDSTAR 3 HP RIDE QUALITY AND GROUND CONTACT RUN PAGE

The fifth tab from the left in SeedStar 3 HP is a shared tab between ground contact and ride quality. Operators may change between the two criteria based on their planter setups or personal preferences. Ground contact displays the percentage of time the row-units are engaging the ground, the load is measured via a sensor through the gauge wheels. Ground contact is recommended to ensure the row-unit is maintaining proper depth at higher planting speeds.

Depending on the planter size, different configurations of sensor and downforce sensors are installed in support of the SeedStar 3 HP monitoring system.

SEEDSTAR 3 HP SEED SPACING MONITORING

Throughout the planting process, obtaining good seed spacing is critical towards achieving plant growing conditions for maximum yield potential.

Today, many items are adjusted on the planter prior to planting to optimize overall seed spacing performance. But after such adjustments are made, information about the actual seed spacing performance during planting was missing within the planter monitoring system. With SeedStar 3 HP, seed spacing information is transmitted live via the GreenStar Display to show the operator exactly what is happening with the planter behind them.

The SeedStar 3 HP transmits seed spacing information onto the bar graph (shown above) for easy understanding of planter seed spacing performance. Also, information about seed skips and multiples are provided to help understand actual planter meter performance and other related system functions in order to make necessary adjustments if needed.

SEEDSTAR 3 HP METER RUNOFF PAGE

On SeedStar 3 HP, the meter runoff page allows growers to test meters before going to the field. Growers can now test the meters without removing them and have confidence in their planter’s performance before going to the field. Many parameters can be viewed during this test such as: singulation, seed count, skips, multiples, coefficient of variation (cv), etc. This test assures that the meter is in healthy condition and ready to plant when conditions are appropriate.

OTHER SEEDSTAR 3 HP MONITORING FEATURES INCLUDE:

• Capable of monitoring individual row-unit and overall planter performance in terms of seed spacing, singulation, and row-unit downforce
• On-screen indication of down force sensor assemblies once configured within the monitor settings application
• Full-color display icons for easy recognition and overall aesthetics
• Downforce system controls with the GreenStar display application
• A run page that allows operator to view relative population levels of all rows on one screen
• Mapping of actual and target seed rates can be mapped in Operations Centers.
• Reprogrammable utilizing controller area network (CAN) via Service ADVISOR™ diagnostics system or Service ADVISOR Remote with JDLink™ connectivity
• User-configurable high fertilizer pressure alarm that allows the operator to be warned when fertilizer pressure reaches a specific level
• Automatic Fast Start for SeedStar 3 HP ensures that seeds will be place accurately when starting from a stop.
• Automatic tractor speed source selection. When equipped with an 8000/9000 Series Tractor, the system selects the radar speed or allows for manual speed input selection.

COMPONENTS AND OPERATION

The SeedStar 3 HP monitoring system contains the following components in order to support the planting data transfer to the GS Displays:

• Planter main controller
• Downforce sensor assembly
• Electric power gen (EPG)
• Row-unit controller (RUC)

The row-unit controller processes the row-unit data from the sensor node assemblies located on the row-unit head casting. The processed information is then sent to the planter main controller to be integrated into the displayed information being sent to the GreenStar Display.

Downforce sensor assemblies are found on row-units with sensor installed. The downforce sensor assembly is put together with the gauge wheel depth-adjustment handle and provides gauge wheel pressure information to the respective sensor node for data processing.