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John Deere 9800

DEBUG Ind: Agriculture, Cat: Hay Forage, SubCat: Harvesting, SubSubCat:
Feature Overview
John Deere 9800
  • 858 hp, 24L Liebherr V12 engine
  • Driveline designed to deliver optimal crop flow when the engine is operating in its efficiency sweet spot
  • The ProStream crop flow designed with extra heavy-duty components for high horsepower and more throughput than ever before
Engine Type / Liebherr / Exhaust emission regulation compliancy: Final Tier 4 / Stage V / Displacement / 24.2 L / 1476.8 cu in. / Model / D9512 A7 04 / Cylinders / V 12 /
Feature Overview
John Deere 9800
  • 858 hp, 24L Liebherr V12 engine
  • Driveline designed to deliver optimal crop flow when the engine is operating in its efficiency sweet spot
  • The ProStream crop flow designed with extra heavy-duty components for high horsepower and more throughput than ever before
Engine Type / Liebherr / Exhaust emission regulation compliancy: Final Tier 4 / Stage V / Displacement / 24.2 L / 1476.8 cu in. / Model / D9512 A7 04 / Cylinders / V 12 /
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Features

High-capacity feeding supports high silage quality

Leading header technology

John Deere rotary harvesting units are built for reliable and powerful feeding of high-capacity forage harvesters. Two fundamental designs are available to match all producer needs. The 600plus Series Headers are the universal solution for different crops up to 4-m (13.1-ft) tall. The 700plus Series Headers are the perfect solution for high-yielding crops.

772 Rotary Harvesting Unit 772 Rotary Harvesting Unit

Available beginning in model year 2019, the top-model 772 12-Row Large-Drum Rotary Harvesting Unit has been designed to fully leverage the capacity of 9000 Series Self-Propelled Forage Harvesters (SPFH).

6X9 Series Windrow Pickup 6X9 Series Windrow Pickup

The 6X9 Series Pickups with the patented endless flight vortex auger design and optional dual header drive enable high-capacity feeding of John Deere SPFH. Key advantages are the throughput boost in high-yielding crops but also the easy handling of uneven windrows.

Variable header drive
Power distribution gearbox (A), header pump (B), and header motor (C) Power distribution gearbox (A), header pump (B), and header motor (C)

John Deere SPFH come with variable header drive in base. The header speed is automatically synchronized with the feeding speed and length of chop through a hydrostatic IVT© drive system. This ensures a gentle and even crop transfer from the header into the machine without blocking or disrupting material transition. Producers receive the benefit of high chopping quality and full leverage of the header and crop flow potential.

Dual header drive

Dual header drive for the SPFH and the 6X9 Series Pickups complements the benefits of the variable header drive. While the variable header drive automatically synchronizes the pickup auger and harvester feeding speed, the dual header drive with its individual hydraulic drive of the pickup tines is speed matched with vehicle speed to ensure clean crop picking in changing conditions and windows.

Speed synchronization between the SPFH and header Speed synchronization between the SPFH and header

Tines speed up and slow down with forward speed while the pickup auger speed is still synchronized with the length of chop and feedroll speed. Producers benefit from a better quality of chop, smoother feeding, and an easy-to-utilize harvesting system.

Hydraulic feedroll dampening

The 9000 Series SPFH offer the hydraulic feedroll dampener in base. Next to the four individual springs applying high pressure on the crop mat entering the machine, the dampener supports crop compaction in uneven crop conditions and ensures smooth feeding even at the highest feeding speeds when chopping for a very long period.

Hydraulic feedroll dampening Hydraulic feedroll dampening
Crop compaction and even feeding at the feedroll Crop compaction and even feeding at the feedroll
Unique foreign object protection

A state-of-the-art metal detector scans for metal in the crop mat and stops the intake in case of tripping. Optionally, this safety device can be completed with a unique stone detection feature that senses for knocks and abnormal feedroll movement. Two redundant sensors developed for this application improve solid foreign object detection and minimize false tripping caused by lumps or uneven windrows.


The John Deere 9000 Series Self-Propelled Forage Harvesters (SPFH) have been developed with a clear focus on machine performance: more throughput and less fuel consumption while providing maximum uptime and low cost of operation.

 

A key success factor is the concept of lower engine rpm at higher harvesting component speeds.

V12 ™ 24-L concept: The Liebherr® D9512 engine

The top-model 9700, 9800, and 9900 SPFH are equipped with a Liebherr 12-cylinder V-engine with 24-L displacement. The Liebherr D9512 is a state-of-the-art engine and delivers what a high-performance forage harvester requires:

  • High power density and great fuel efficiency
  • Constant maximum power down to lower engine rpm
  • Torque curve designed for forage harvesting applications
Torque and power of the Liebherr engine Torque and power of the Liebherr engine

The broad maximum power range of the Liebherr V12 engine cuts off the less-efficient rpm area above 1800 rpm. The rising torque curve down to 1300 rpm enables efficient operation of the machine in the lower rpm range.

Revised driveline with optimized component speeds

To reach maximum efficiency and performance, all machine component speeds are re-worked and laid out for best function in the 1400 to 1800 engine rpm range. This also leads to better fuel efficiency with an optimum range from 1250 to 1600 rpm, where the engine has its lowest specific fuel consumption (g/kWh).

Specific fuel usage in rpm range Specific fuel usage in rpm range

This unique concept delivers undisputed customer value:

  1. 10 percent more throughput (t/kW)*
  2. 10 percent better fuel economy (L/t)*
  3. More hours in the field with 1500-L (396.25-gal.) diesel tank and 90-L (23.8-gal.) urea tank

*Compared to replaced models

 

Liebherr is a trademark of Liebherr-International AG.


John Deere Premium KP™John Deere Premium KP™
John Deere XStream KP™John Deere XStream KP™

All 9000 Series Self-Propelled Forage Harvesters (SPFH) can be operated with or without a kernel processing unit in position. When not in use, a crop transition chute swings into position at a few turns of a crank. The crop transition chute comes standard on all harvesters.

 

Also available on all SPFH is the optional dismounting crane for easy kernel processing swing outside the service compartment.

 

The 9000 Series SPFH feature the AutoLube central greasing harness; the respective central greasing equipment is available on the Premium Kernel Processor as well. The XStream Kernel Processor features an automatic pressurized oil lubrication.

 

For the 9000 Series, two types of kernel processors (KP) are offered: the John Deere Premium KP and the John Deere XStream KP. Both kernel processors have been tested and proven by independent experts during corn harvest in 2016 and 2017.

 

The 9600, 9700, and 9800 SPFH can be equipped with the John Deere XStream KP or the John Deere Premium KP. For the 9900, only the heavy-duty XStream KP solution is available.

John Deere Premium KP

On the 9000 Series, the proven John Deere Premium KP can be installed on the 9600, 9700, and 9800 models. With their highly intense processing, they deliver the best results at any length of cut.

 

The Premium KP has a standard KP housing with grease lubrication in base. The roll diameter is 240 mm (9.45 in.) with 32 percent speed differential. As an option, 40 percent speed differential can be installed, if required.

 

The following rolls are available for the Premium KP:

  • Dura Line™ sawtooth
  • Whole crop
  • Milo

With Dura Line rolls, a longer lifetime and less wear can be reached, resulting in less cost of operation.

 

For an easy and uncomplicated mounting and dismounting of the Kernel Processor, a crane with electric winch can be installed as an option.

John Deere XStream KP

The John Deere XStream KP is made for high-horsepower machines and stands for extreme kernel processing at any length of cut.

 

The XStream KP rolls are manufactured and delivered by Scherer Inc., which is located in South Dakota, Unites States. The kernel processor fits all 9000 Series models (9600 through 9900). As Scherer Inc. has a strong focus on dairy forage production and is the leading company in KP roll designs and manufacturing since 1999, a strong statement is set in regards to kernel processing and forage quality.

 

More information about Scherer Inc. can be found on their website: https://www.schererinc.com/

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The XStream KP is equipped with a heavy-duty housing with KP roll quick-exchange system and pressurized oil lubrication. The roll diameter is 250 mm (9.8 in.) with 50 percent speed differential. As an option, the XStream KP can be equipped with bearing temperature monitoring.

 

The following rolls are available for the XStream KP:

  • Dura Line sawtooth
  • Dura Line XCut rolls
  • Whole crop XCut rolls

In comparison to the Dura Line sawtooth rolls, the Dura Line XCut rolls have a spiral groove sawtooth profile, delivering excellent processing, especially at long lengths of cut. The spiral groove design delivers highly processed plants and smashed kernels.

 

 

 


Low cost of operation and longer lifetime

Due to a special heat treatment, the coating is extremely wear resistant and has an extraordinarily smooth surface. This results in a permanent fast chopping process while the fuel consumption remains low.

 

Tests show that while chopping in the same crop conditions and chopping the same tonnage, Dura Line parts last four times as long as, or longer than, standard parts. Time and money associated with replacing parts are significantly reduced.

Benefits of Dura Line parts
  • Performance – an extremely hard coating makes Dura Line wear parts the toughest. Dura Line is exclusively supplied from John Deere.
  • Uptime – Dura Line uses a unique technology that provides more hours of extensive machine use before parts need to be replaced. A proprietary tungsten carbide composition associated with unique application provides this exclusive wear-resistance performance.
  • Cost of operation – premium John Deere parts last up to five times longer and cut labor costs. This significantly minimizes the risk of downtime during the harvesting season, saving money in the long run.
Dura Line packages

Dura Line parts cover nearly every wear part that does not already have a high-wear solution. The main crop flow elements are hardened and more resistant, even in the toughest conditions. Dura Line parts include spiral band, knife brackets, front chute, grass channel blower band, blower side liners, spout liners, and spout caps.

 

Three packages are available to match different producer requirements:

Producers have the ability to equip their 8000 or 9000 Series Self-Propelled Forage Harvesters (SPFH) with Dura Line components for extended part lifetime and lower cost of operation.

Three packages are available to match different producer requirements:

#Dura Line™ ComponentBasicPremiumUltimate
1Spiral band (cutterhead floor)
2Accelerator band
3Spout flap
4Spout wear liners 
5Front chute base liner 
6Grass chute base liner  
7Accelerator side wall liners  
8Front chute side liners  
9Smooth roll scraper  
10Dura Line knife holders  
11Transition front liners (Model year 2019)  
12 Dura Line Plus Shearbar   √

 

Dura Line spout and wear partsDura Line spout and wear parts
Option codeDescription
2720Standard wear machine
2721Dura Line Basic
2722Dura Line Premium
2723Dura Line Ultimate

HarvestLab measures dry matter on the goHarvestLab measures dry matter on the go
Dry matter sensor mounts on the spoutDry matter sensor mounts on the spout

The HarvestLab sensor mounts to the top of the discharge spout and takes accurate dry matter and ingredient readings (more than 4000 measurements per second) of the crop through the sapphire glass lens as crop passes through the spout. This is the same technology forage labs use to measure dry matter. HarvestLab with John Deere Constituents Sensing measures dry matter, and has the ability to measure sugar, starch, acid detergent fiber (ADF), neutral detergent fiber (NDF), and crude protein in corn silage as well as ensiled material when used as a stationary unit.

 

When HarvestLab is used in conjunction with Harvest Monitor™, a wealth of important information becomes available to the operator, including productivity in acres per hour, throughput in tons per hour, total area harvested, total crop mass harvested, yields, and dry matter.

 

When the HarvestLab is used in conjunction with an 8000 or 9000 Series Self-Propelled Forage Harvester (SPFH) and a GreenStar™ display, AutoLoc™ functionality is automatically present. AutoLoc automatically varies the length of cut according to the desired crop-dry matter correlation settings based on the dry matter readings from the HarvestLab sensor.

Crop type and constituent sensing (R4)
CropMaterialDry MatterADF*NDF**StarchProteinSugarCrude Fibre (XF)Crude Ash (XA)
Corn silageFreshly harvested and ensiledYesYesYesYesYesNoNoNo
AlfalfaYesYesYesNoYesYesNoNo
SnaplageYesYesYesYesNoYesNoNo
Whole crop silageYesYesYesYesYesNoNoNo
GrassYesYesYesNoYesYesYesYes

*ADF - Acid Detergent Fibre

**NDF - Neutral Density Fibre


Overview

John Deere self-propelled forage harvesters (SPFH) set new standards in kernel processing performance. Proven in independent tests during corn harvest in 2016 and 2017, John Deere kernel processors (KP) deliver smashed kernels and highly processed plants that growers expect. With two different models, the John Deere Premium KP© kernel processor and the John Deere XStream KP© kernel processor, all different needs will be satisfied.

 

Additional details

All John Deere SPFH can be operated with or without a kernel processing unit in position. When not in use, a crop transition chute (or grass chute) swings into position with a few turns of a crank. The crop transition chute comes standard on all harvesters.

 

The SPFH feature the AutoLube central greasing harness; the respective central greasing equipment is available on the Premium KP kernel processor. The XStream KP kernel processor features automatic pressurized oil lubrication.

 

The John Deere Premium KP is available for the 9600 to 9700 models, and the John Deere XStream KP is available for all 9000 Series models. The 9900 model can only be equipped with an XStream KP.

John Deere Premium KP
John Deere Premium KP kernel processor John Deere Premium KP kernel processor

On the 9000 Series, the proven John Deere Premium KP can be installed on the 9600 through 9800 models. With their highly intense processing, they deliver excellent forage quality at any length of cut.

 

The main features of the Premium KP are:

  • 240-mm (9.45-in.) roll diameter for different crops (maize and whole crop)
  • 32 percent speed differential; option of 40 percent speed differential
  • Standard KP housing with grease lubrication in base
  • Electric KP gap adjustment from the cab as option

 

The following rolls are available for the Premium KP:

  • Standard sawtooth (118/118 teeth)
  • Dura Line© sawtooth (118/118 teeth)
  • Whole crop sawtooth (178/178 teeth)

 

With the option of Dura Line rolls, a longer lifetime and less wear can be reached, resulting in lower cost of operation.

 

For easy and uncomplicated mounting and dismounting of the KP, a crane with electric winch can be installed as an option.

Mounting and dismounting the KP with the optional crane and winch Mounting and dismounting the KP with the optional crane and winch

The following diagram shows the complete John Deere Premium KP offering with all possible combinations.

 

 

Sawtooth (118/118 teeth) ™ code 3734

John Deere Premium KP with:

  • Standard KP housing
  • 240-mm (9.45-in.) roll diameter
  • 32 percent speed differential
  • Grease lubrication

Dura Line sawtooth (118/118 teeth) ™ code 3738

 

Whole crop sawtooth (178/178 teeth) ™ code 3743

 

The following additional options are also available for the Premium KP.

Crane for KP removal complete with electrical winch (code 8380) Crane for KP removal complete with electrical winch (code 8380)
Hydraulic KP belt tensioner (code 8381) Hydraulic KP belt tensioner (code 8381)
Electrical KP gap adjustment (code 8376) Electrical KP gap adjustment (code 8376)
40 percent speed differential (code 9389) 40 percent speed differential (code 9389)
Complete whole crop KP as bundle (code 9379) Complete whole crop KP as bundle (code 9379)
Temperature monitoring (code 838A) Temperature monitoring (code 838A)
Crane for KP removal complete with electrical winch (code 8380) Crane for KP removal complete with electrical winch (code 8380)
John Deere XStream KP
John Deere XStream KP kernel processor John Deere XStream KP kernel processor

The John Deere XStream KP is the heavy-duty solution made for high throughput and high-horsepower machines and stands for extreme processing at any length of cut in any crop and any conditions.

 

The XStream KP rolls are manufactured and delivered by Scherer Inc., located in South Dakota, United States. The kernel processor is supplied ex-factory by Scherer Inc. and fits on all 9000 Series models. As Scherer Inc. has a strong focus on dairy forage production and is the leading company in KP roll designs and manufacturing since 1999, a strong statement is set regarding kernel processing and forage quality.

 

More information about Scherer Inc. can be found on their website: https://www.schererinc.com/

Scherer Inc. logo Scherer Inc. logo

The main features of the XStream KP are:

  • 250-mm (9.8-in.) roll diameter
  • 50 percent speed differential
  • Heavy-duty housing with KP roll quick-exchange system
  • Pressurized oil lubrication of bearings
  • Bearing temperature monitoring system (option)

The following rolls are available for the XStream KP:

  • Dura Line sawtooth (110/145 teeth)
  • Dura Line XCut (110/145 teeth)
  • Dura Line Whole Crop XCut (145/165 teeth) ™ only available for 9000 Series

 

In comparison to the Dura Line sawtooth rolls, the Dura Line XCut rolls have a spiral groove sawtooth profile that delivers excellent processing, especially at long lengths of cut. The spiral groove design delivers highly processed plants and smashed kernels.

 

For easy and uncomplicated mounting and dismounting of the KP, a crane with electric winch can be installed as an option.

Mounting and dismounting the KP with the optional crane and winch Mounting and dismounting the KP with the optional crane and winch

The following diagram shows the complete John Deere XStream KP offering with all possible combinations

 

 

Dura Line sawtooth (110/145 teeth) ™ code 3750


John Deere XStream KP with:

  • Heady-duty housing
  • 250-mm (9.8-in.) roll diameter
  • 50 percent speed differential
  • KP roll quick-exchange system
  • Pressurized oil lubrication

Requires:

  • Air compressor (code 8710)
  • Hydraulic KP belt tensioner (code 8381)
 

Dura Line XCut sawtooth with spiral groove (110/145 teeth) ™ code 3751

Dura Line XCut sawtooth with spiral groove for whole crop (145/165 teeth) ™ code 3752
NOTE: Only available for 9000 Series models.

 

The following additional options are also available for the XStream KP.


Overview

Due to increased machine usage (chopping more tons per hour), standard high-quality steel parts need to be replaced more frequently. Since 2010, John Deere has been meeting the challenge and exceeding expectations with Dura Line© wear parts.

 

Dura Line© components  were developed by John Deere and are installed in high wear spots on the self-propelled forage harvesters (SPFH), mainly in the crop flow. The technology is normally used for heavy-duty environments such as mining and machine tooling. It is the highest material quality in the industry that is installed on an SPFH.

Benefits
  • The coating is extremely wear resistant with an extraordinarily smooth surface due to the special heat treatment and a proprietary tungsten carbide composition.
  • Dura Line© provides a permanent fast-chopping process with low crop friction on the components while fuel consumption remains low.
  • Tests show that when chopping in the same crop conditions and chopping the same tonnage, Dura Line© parts last four times as long as, or longer than, standard parts. Time and money associated with replacing parts are significantly reduced.
Dura Line© coating Dura Line© coating
Dura Line© processing Dura Line© processing
Additional details

Dura Line© guarantee

The Dura Line© guarantee provides a specified number of engine hours or time of usage (whichever comes first) for the different Dura Line© liners. The Dura Line© guarantee was first introduced in 2017 and is valid for all 8000 and 9000 Series SPFH models. Dura Line© liners damaged from foreign material or misuse are excluded. Only parts that are completely worn are replaced.

 

For more information about the Dura Line© guarantee, contact the local sales organization.

 

Dura Line© packages

The John Deere Dura Line© crop flow liners come in three packages. Depending on the individual harvesting requirements, there is a perfect package for every need.

  • Basic: Perfect solution for machines mainly harvesting corn
  • Premium: Ideal for abrasive conditions (particularly grass)
  • Ultimate: Perfect choice for toughest conditions, providing full crop flow coverage
Dura Line© wear parts Dura Line© wear parts
# Dura Line© component Basic Premium Ultimate
1 Spiral band √ √ √
2 Accelerator band √ √ √
3 Spout flap √ √ √
4 Spout wear liners   √ √
5 Front chute base liner   √ √
6 Grass chute base liner     √
7 Accelerator side wall liners     √
8 Front chute side liners     √
9 Transition front liners     √
10 Dura Line© smooth roll scraper √ √ √
11 Dura Line© knife holder     √
12 Dura Line© Plus shear bar   √ √

HarvestLab 3000 measures dry matter and constituents on the go HarvestLab 3000 measures dry matter and constituents on the go
HarvestLab 3000 sensor mounted on the spout HarvestLab 3000 sensor mounted on the spout

The HarvestLab 3000 sensor mounts to the top of the discharge spout and takes accurate dry matter and ingredient readings (more than 4000 measurements per second) of the crop through the sapphire glass lens as crop passes through the spout. This is the same technology forage labs use to measure dry matter. HarvestLab 3000 with John Deere Constituent Sensing measures dry matter and can measure sugar, starch, acid detergent fiber (ADF), neutral detergent fiber (NDF), crude fiber, crude ash and crude protein depending on the crop. In addition, the HarvestLab 3000 sensor can also be used as a stationary unit.

 

Stationary usage of HarvestLab 3000 Stationary usage of HarvestLab 3000

Crop type and constituent sensing

 

Crop Material Dry Matter ADF NDF Starch Protein Sugar Crude Fibre (XF) Crude Ash (XA)
Corn silage Freshly harvested and ensiled Yes Yes Yes Yes Yes No No Yes
Alfalfa Yes No No No No No No No
Whole crop silage Yes No No No No No No No
Grass Yes Yes Yes No Yes Yes Yes Yes

 

 

When HarvestLab 3000 is used in conjunction with Harvest Monitor© system, a wealth of important information becomes available to the operator, including productivity in acres per hour, throughput in tons per hour, total area harvested, total crop mass harvested, yields, and dry matter.
 
When the HarvestLab 3000 is used in conjunction with an 8000 or 9000 Series Self-Propelled Forage Harvester (SPFH) and a GreenStar© display, AutoLoc functionality is automatically present. AutoLoc automatically varies the length of cut according to the desired crop-dry matter correlation settings based on the dry matter readings from the HarvestLab 3000 sensor. With the AutoLoc adjustment, bunk density is improved and a high forage quality is reached.

AutoLoc© - Automatic length of cut
AutoLoc on the SPFH AutoLoc on the SPFH
  1. HarvestLab 3000 — moisture and ingredients on the go
  2. Manual control (operator)
  3. AutoLoc — automatic control
  4. IVLOC© transmission — length of control changes on the go

 

AutoLoc, a feature exclusive to John Deere, brings added value to the HarvestLab sensor and John Deere SPFH. AutoLoc works in conjunction with the HarvestLab sensor and IVLOC transmission to automatically adjust the length of cut (LOC) based on crop moisture levels to improve bunk density and reduce long particles in dry corn. Nutritionists, herdsmen, and SPFH operators will all benefit from this innovation.

John Deere is leading the industry in providing real-time information that matters most to forage production. Quality forage comes from properly packed silage, which is directly related to the moisture content and LOC of the crop.

LOC changes are made automatically in the field based on moisture readings and predetermined settings determined by operator requirements. No in-field calibration is required to load the LOC requirements; the operator simply uses the GreenStar display to program the desired LOC settings at different moisture levels.

When moisture levels of crop in the field change, the IVLOC drive automatically responds to either increase or decrease the feedroll speed, which in turn changes the LOC. If moisture levels of the crop are outside of the desired range, the IVLOC transmission adjusts and limits the LOC based on the maximum and minimum LOC settings as determined by the operator.

AutoLoc screen AutoLoc screen

AutoLoc solves the dry matter and LOC puzzle

On-the-go, accurate LOC adjustment is unique in the market. John Deere AutoLoc  is linked to the HarvestLab  sensor, which measures the dry matter and ingredient content on the go with more than 4000 measurements per second, using the most accurate technology in the market — near-infrared technology.

According to the accurate moisture readings, AutoLoc is able to adjust the proper LOC automatically in steps as small as 1 mm (0.04 in.). This process is faster and more accurate than any operator could do manually because of all the other important operating functions being performed. This can increase overall efficiency dramatically.

With AutoLoc, the SPFH operator simply sets the minimum, optimum, and maximum moisture levels and the corresponding lengths of cut. AutoLoc then creates a linear curve between the minimum and the optimum and between the optimum and the maximum. LOCs are then determined based on those lines.

For example, if the optimum LOC were set to 15 mm (0.59 in.) at 68 percent moisture and 8 mm (0.31 in.) at 50 percent moisture, and the actual moisture of the crop was 63 percent, AutoLoc would change the LOC to be 13 mm (0.51 in.) based on the linear curve it created.

Why AutoLoc is a must to ensure silage quality and overall profitability


It impacts the silage compaction in the bunker to ensure the quality of feed being stored is the best quality possible.

Silage density and AutoLoc

Good silage starts with high bunk density to preserve the crop value. This is the main objective for both dairy/beef producers and biogas plants. Many factors are involved in achieving high bunk density, including type of crop, moisture levels, length of cut, bunk filling speed, and compaction machinery.

Some of these factors cannot be easily changed while harvesting. AutoLoc adds an improved sense of control to the harvesting and silage storage operation. Operators do not need to compromise when choosing the proper length of cut based on moisture. AutoLoc takes care of this chore automatically.

Oftentimes, producers are so focused on getting the job done that important tasks and details are overlooked during the harvesting operation. Knowing the growing period for corn silage covers five months growing in the field and only a few days harvesting for 10 to 12 months of feeding, the process of the silage harvest and storage should be managed as well as possible.

The impact of the silage quality, which can be harvested and stored in just a few days, can have a huge impact on income throughout the entire year. The silage cost is a major part of the expenses in the dairy/beef and biogas plant businesses. Poor forage quality can cost tens of thousands of dollars per year in increased feed costs resulting in the producer having to invest in additional silage to reach the desired feed ration.

Spoilage/reheating and seeping losses are the biggest problems in silage bunks. These problems often happen due to insufficient compaction and an incorrect LOC. In order to achieve the right amount of silage compaction and keep as much air out of the silage as possible, the LOC has to be adjusted according to the moisture levels of the crop - the wetter the material, the bigger the particle size.

While varying lengths of cut can dramatically help to achieve high density levels, the length of cut of the material must be consistent in order to maintain normal rumination, chewing, and saliva production in the rumen. If the particles are too small, the food does not fit anymore with the process of the cow rumen and the compaction becomes difficult due to the instability of the material.

For this reason, John Deere created AutoLoc, which automatically adjusts the length of cut to the moisture value, while staying within the preset LOC range.

Having some limited LOC variations in a bunk silo should not affect the effective fiber in the ration on a daily basis. Using AutoLoc in conjunction with upright or bag silos can vary the effective fiber fed to animals on a daily basis.

Looking at the studies done by Honig and Rohr in 1985, as can be seen in the following table, it is possible to get high-density levels of dryer crop when the crop is chopped at a shorter LOC.

 

Length of cut

Bunk density

 73 percent moisture

64 percent moisture

4 mm (0.16 in.)

205 kg/m3 (12.8 lb/ft3)

179.7 kg/m3 (11.2 lb/ft3)

7 mm (0.28 in.)

192.2 kg/m3 (12.0 lb/ft3)

174.6 kg/m3 (10.9 lb/ft3)

14 mm (0.55 in.)

173 kg/m3 (10.8 lb/ft3)

157 kg/m3 (9.8 lb/ft3)

AutoLoc chart AutoLoc chart

Forage harvester performance and AutoLoc

The following equipment is required for AutoLoc functionality:

  • GreenStar display
  • HarvestLab 3000 sensor
  • 8000 or 9000 Series Self-Propelled Forage Harvester

Specs
Engine power
Maximum power at 1800 rpm 640 kW
870 PS / 858 hp
Key Specs
Engine Type
Liebherr
Exhaust emission regulation compliancy: Final Tier 4 / Stage V
Displacement
24.2 L
1476.8 cu in.
Model
D9512 A7 04
Cylinders
V 12
Engine
Fuel system Common rail plus four valves
Engine power
Fuel tank capacity 1500 L
396.3 U.S. gal.
Kernel processor
Type John Deere Premium KP, John Deere XStream KP
Engine
Model D9512 A7 04
Displacement 24.2 L
1476.8 cu in.
Cylinders V 12
Cooling system
Cooling system capacity 130 L
34.34 U.S. gal.
Cooling fan drive Direct
Driveline
Ground drive Prodrive™, autoshift transmission, differential lock (automatic and manual), automatic wet brake system
Engine rpm on road: 1200-1800 rpm
Hydraulics Load sensing
Crop harvesting unit Harvest channel wide
Crop flow components Low-friction crop-flow concept
Main clutch Dry clutch
Number of discs Two discs
Main driveband Reinforced with Kevlar inserts
Belt tensioning Active, hydraulic pressure
Main driveband, polybelt belts Nine ribs
Electrical system/Electrical and hydraulic system
Type/voltage 12 / 24 V
Batteries/battery quantity/capacity 3 x 174 amp-hr
Alternator 13 V - 200 amp
24 V - 140 amp
Hydraulic system capacity 50 L
13.2 U.S. gal.
Ground drive
Differential lock Manual and automatic
Maximum transport speed ProDrive transmission: 20 / 25 / 30 / 40 km/h
12.4 / 15.5 / 18.6 / 24.9 mph
Rear axle type Hydro-mechanical 4WD
Automatic wet brake system Standard
Engine rpm - Management Standard
Cab
Tilt and extend steering column Standard
Air conditioning and heater Standard - ClimaTrak
Cool box Optional
Trainee seat Standard
Hectare counter Standard
Operator information system Cornerpost display
CAN-BUS electronics Standard
Side window wiper Rear and side window wiper optional
Parallel-type windscreen wiper
Electric adjust and heated Optional on rear view mirrors
Rear view mirrors Standard
Machine management solutions
Yield monitoring Harvest Monitor™ optional
Documentation Harvest Doc™ optional
Crop analysis HarvestLab™ optional
Length-of-cut control based on crop parameter Infinitely variable length-of-cut (IVLOC™) standard
AutoLOC optional - use with HarvestLab
Satellite (GPS) assisted steering AutoTrac™ optional
Crop-harvesting units
Header height control Advanced header control (AHC) optional
Grass pick-ups 3.0, 4.0, 4.5 m
9.8, 13.1, 14.8 ft
Feeding system/Feedrolls
Feed roll frame opening Swing away, 37-45 degree (angle)
Number Four
Metal detector Standard
Stone detector is optional
Width, front 830 mm
32.7 in.
Standard feed roll drive Hydro feedroll drive IVLOC standard
Infinitely variable header drive speed standard
Cutterhead
Knife drum width 850 mm
33.5 in.
Knife drum diameter 670 mm
26.4 in.
Speed at rated engine speed Standard - 1170 rpm
Optional - 1350 rpm
Knife types available (crop) Straight - grass
Curved - corn
Number of knives 40 - 48 - 56 - 64
Knife sharpening system
Reverse rotation Yes
Automatic from cab Yes, remote from cab
Reverse drive Standard
Kernel processor
Quick-change Quick kernel processor - swing in/swing out
John Deere XStream KP
Maize, roll teeth number (speed differential) 110/145 (50 percent)
Wholecrop, roll teeth number (speed differential) 145/165 (50 percent)
Sorghum, roll teeth number (speed differential) 238 (32 percent)
Disk type (kernel processor)
Diameter of disks 240 mm
9.45 in.
Spout
Rotation, degrees 210 degree (angle)
Hydraulic height position Hydraulic raise and lower standard
Automatic spout positioning optional
Double-cap deflection Standard
Maintenance
Rotary radiator screen cleaner Standard
Automatic lubrication system AutoLube optional
Engine oil and filter change duration 1000 hours
Vehicle
With front tires 710/70R42
With rear tires 620/60R30
Transport length (without header) 6.6 m
21.7 ft
Transport width (without header) 3.1-3.7 m
10.2-12.1 ft
Transport height (to cab roof) 3.89 m
12.75 ft
Working height (maximum) Height to spout: 6.60 m
21.65 ft
Engine power
DEF tank capacity ( for FT4 or EU Stage V emission level) 103 L
23.8 U.S. gal.
Crop-harvesting units
Grass pick-ups (transport width) 3.0, 4.0, 4.5 m
9.8, 13.1, 14.8 ft
Kernel processor
Quick KP removal Optional crane with remote-controlled electric hoist
John Deere XStream KP
Roll diameter 250 mm
9.8 in.
John Deere Premium KP
Weight 163.3 kg
360 lb
Blower/Crop accelerator
Rotor diameter/housing width 560 / 620 mm
22.86 / 24.41 in.
Number of blades 10
Speed (option) 1890 rpm
Spout
Reach from center line (Optional) 6 or 8 row: 4.73 m
15.5 ft
10 row: 5.87 m
19.3 ft
12 row: 6.71 m
22 ft
*Manufacturer's suggested price. MSRP may be different in California. Taxes, freight, setup, and delivery not included. Optional accessories and attachments not included. Equipment, models and prices may vary by dealer. Product options and accessories may not be available in all regions. The engine horsepower and torque information are provided by the engine manufacturer to be used for comparison purposes only. Actual operating horsepower and torque will be less. Refer to the engine manufacturer’s website for additional information. Offers valid in the United States. Prices in U.S. dollars.
Belle Glade

2017 Northwest 16th Street
Belle Glade, FL 33430
561-996-6531

Map & Hours
Boynton Beach

1335 Neptune Dr
Boynton Beach, FL 33426
561-732-8905

Map & Hours
Brooksville

22255 Cortez Blvd
Brooksville, FL 34601
352-573-2720

Map & Hours
Fort Myers

9501 FL-82
Fort Myers, FL 33905
239-332-5045

Map & Hours
Fort Pierce

6150 Orange Ave
Fort Pierce, FL 34947
772-461-5568

Map & Hours
Homestead

127 N Krome Ave
Florida City, FL 33034
305-247-9886

Map & Hours
Immokalee

775 E Main St
Immokalee, FL 34142
239-657-4413

Map & Hours
Largo

6785 114th Ave
Largo, FL 33773
727-828-8200

Map & Hours
Leesburg

1800 US-441
Leesburg, FL 34748
352-315-1016

Map & Hours
Loxahatchee

13295 Southern Blvd
Loxahatchee, FL 33470
561-784-4000

Map & Hours
Naples

1945 Pine Ridge Rd
Naples, FL 34109
239-260-8800

Map & Hours
North Port

2825 Commerce Parkway
North Port, FL 34289
941-924-9709

Map & Hours
Odessa

2240 Success Dr
Odessa, FL 33556
727-842-8618

Map & Hours
Okeechobee

820 US-98
Okeechobee, FL 34972
863-763-1921

Map & Hours
Orlando

12049 S Orange Blossom Trail
Orlando, FL 32837
407-240-1023

Map & Hours
Palmetto

906 US-301
Palmetto, FL 34221
941-722-3281

Map & Hours
Plant City

2805 West, FL-60
Plant City, FL 33567
813-737-1660

Map & Hours
St Cloud

117 13th St
St Cloud, FL 34769
321-209-4888

Map & Hours
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