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Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 1
Hands-Free Harvesting
with Case IH
AFS® RowGuide
This is a Sales Education document
not to be used for advertising.
Book: Grain Harvesting
Section: Combines
Form No: GH-2168-14
Replaces: GH-2091-10
Date: February 2014
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PR
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Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 2
Introduction
Case IH released AFS RowGuide in the fall of 2010 as a new feature to improve operator and
corn head efficiency. Since 2010, many improvements have been made to the AFS RowGuide
system to further improve and enhance the system. The Case IH AFS RowGuide provides a
great level of accuracy, operator convenience, and productivity when it comes to precision
harvesting.
The AFS RowGuide operates using the current AFS AccuGuide™ system and two mechanical
sensors that provide row position data to the combine. By utilizing advanced GPS positioning
and actual data from the mechanical row feelers, accurate row positioning can be achieved and
maintained in ever-changing harvest conditions. AFS RowGuide has been designed to provide
operators maximum adaptability by maintaining performance, whether the field was planted with
or without a guidance system.
This Product Information Document will point out the benefits of AFS RowGuide, the components
that are needed, basic setup, and operation.
Case IH AFS RowGuide
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 3
Benefits of Case IH RowGuide
There are many benefits to the Case IH RowGuide
system. There is one key benefit that directly puts
more grain in the tank. This is reducing header
loss. Corn heads work most efficiently when the
stalk is pulled straight down between the stripper
plates. This allows the ear to be removed and the
stalk to be processed. If the operator is off slightly,
this causes the stalks to be pulled down at an angle
which can cause grain loss and excessive stalk
material to go through the combine.
Additional Benefits of Case IH RowGuide
Reduced operator fatigue by following rows hands free and reducing the need to concentrate
on steering.
Increased productivity by laying out field passes without the need to count rows.
Drive through waterways without having to touch the steering wheel.
Maintain productivity in tight contours and curves with inexperienced operators by allowing the
combine to position itself along rows.
Constant crop feeding reduces header loss and butt shelling by consistently positioning the
stalks in the center of the row.
Improved performance in windblown down corn while allowing the feelers to guide the way.
Row guidance with integrated GPS allows seamless transition between row guidance and
GPS guidance when a corn row is not detected, such as in situations where planter skips may
have occurred or sprayer/side dress applications have run over the row.
Easy operation and user interface that operates similar to AFS AccuGuide.
Remember that two kernels per square foot equals a bushel to the acre of loss. So what may
seem like small savings adds up very quickly. Even if there is a .25 bushel, any acre savings
adds up.
1000 acres at .25 bushel an acre savings X $5.00 corn = $1,250 savings!
Case IH AFS RowGuide
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 4
AFS AccuGuide Complete Combine
AFS AccuGuide
The AFS RowGuide works with the AFS AccuGuide system. AFS RowGuide is not a standalone
system and must be operated on an AFS AccuGuide complete combine. This means the
combine contains all steering components, display, GPS receiver and navigation controller.
Display & Receiver
The RowGuide system operates using an AFS Pro 600 or AFS Pro 700 display. The following
GPS receivers can be used with the RowGuide system: 162, 252, 262, and 372.
AFS RowGuide operates with any Case IH GPS correction signals. GPS correction sources will
affect the level of accuracy. This is particularly noticeable when no input is detected by the
RowGuide sensors (driving through long waterways or turning on headlands or areas of the field
with no crop). For example, if using WAAS level guidance, you may be 6 inches off when turning
around on the headlands, because of the level of GPS accuracy.
Case IH AFS RowGuide
Guidance
Complete
Guidance Ready Vehicle Transferable
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 5
AFS RowGuide Components
Row Sensors
Two RowGuide sensors are mounted on corresponding
corn head row dividers which gather data from a single
row. The sensors are mounted on the first row left of
center and can be installed on a Case IH 30" corn head.
The feeler rods on the sensors are free to move in either
direction to allow for backing up and are protected by a
skid plate. The RowGuide harness ties into the existing
header electrical connector to provide a clean and simple
installation.
Note: Only two sensors are used no matter what the width
of the head.
Case IH AFS RowGuide
RowGuide Harness & Sensor Mounting Brackets
In addition to the RowGuide sensors, a wiring harness kit
that utilizes the header electrical connector and sensor
mounting brackets is required.
AFS RowGuide Display Unlock Code
Once the physical components of the system have been
installed, the display must also be unlocked with a
purchased unlock activation. This activation is then put
into the display to unlock the RowGuide software.
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 6
Ordering Information
RowGuide Kit
The RowGuide kit is ordered through the normal parts channels and includes sensors, wiring
harness, and mounding brackets. The kit also includes instructions on how to obtain the display
unlock code.
Case IH AFS RowGuide
Header Compatibility
The AFS RowGuide system is only intended to work with the following Case IH 30” row spacing
headers.
Grain Harvesting GH-2168-14
AFS Display AccuGuide Set-Up
AFS AccuGuide Set-Up
Before AFS RowGuide can operate, the combine must be able to run AutoGuidance. This
means before RowGuide is installed or turned on, the combine must be able to set and engage
on a guidance line.
In the toolbox, the following items must be set:
• GPS Location – Set to correct location
• Height Offset - Note: Inaccuracies in this measurement will affect terrain compensation
calculations done by the NAV II controller. Be as accurate as possible when measuring and
entering this value.
• Navigation - Must be set to AFS AccuGuide
2/13/2014 Case IH Product Information 7
Case IH AFS RowGuide
• Minimum Turning Radius - Note: For headers less than 30
feet in width, set the “Min Turn Radius” to no less than 30 feet.
For headers greater than 30 feet in width, set the “Min Turn
Radius” to the actual header width.
• Aggressiveness - This value is applied anytime the vehicle is
less than 1 meter (3.28 ft.) from the guidance swath.
(Suggested Range, 100-125). Note: Start at 100 and adjust up
in increments of 10 until the response starts to get 'edgy,' then
back it down by 10 until performance is satisfactory.
• Swath Acquisition - Note: The “Swath Acquisition” value is an
aggressiveness setting which is applied anytime the vehicle is
greater than 1 meter (3.28 ft.) from the guidance swath.
Suggested range is 113-128
GPS Location Height Offset Navigation
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 8
AFS Display AccuGuide Set-Up (Continued)
• Multi Swath – The preferred swath type to use for
RowGuide. Set the “Multi Swath Completion” option for the
desired control required for each field condition. This
setting can be managed through “Swath Manager” on a run
screen or in “Toolbox” > “NAV” as shown below.
Case IH AFS RowGuide
• AutoGuidance Type – In the toolbox, navigate to the
Drive tab. Ensure that the “Auto Guidance Type” is set to
“DGPS” and NOT “Row” even when using RowGuide.
• Speed Sensor Type – Navigate to the “Comb” tab and
select the desired “Speed Sensor Type,” Note: It is advised
to use “Wheel” for ground speed, as this is a more
accurate and robust input source.
Grain Harvesting GH-2168-14
In the Calibration Tab, the following calibration must be
performed:
• Distance Calibration– This ensures that distance traveled
is accurate.
• Rear Wheel Position Calibration- This calibration
identifies a “straight-ahead” feedback voltage from the
steering cylinder potentiometer.
• Steering Valve Calibration - This identifies the minimum
PWM% that must be applied to the left and right steering
solenoids before movement of the steering tires occurs.
• Roll Calibration - A roll calibration is performed to
eliminate overlaps and skips in the swath by correcting the
actual vs. calculated position of the machine.
2/13/2014 Case IH Product Information 9
AFS Display AccuGuide Calibrations
AFS AccuGuide Calibration
In order for the system to operate correctly, the system must be calibrated. If the Autoguidance
system has not been properly calibrated, the performance of the RowGuide system can be poor.
Case IH AFS RowGuide
Calibration Tab
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 10
RowGuide Sensors Adjustments
RowGuide Sensor Alignment
The RowGuide sensor gap needs to be set for the system to operate correctly. Incorrect sensor
gap can lead to poor performance of the system.
Centering the sensors vertically can be done with a tape measure and level or inclinometer, as
shown below. Adjust both sensor feelers at an equal distance from the divider side rails so that
the 20 mm (0.8in) space is centered on the row unit. The sensor feelers should be adjacent to
each other, with a 20mm (0.8 in) space between the tips.
Case IH AFS RowGuide
If adjustment of the RowGuide sensor(s)
is required, loosen the sensor mounting
bolts slightly. Use a ratchet to move the
sensor(s) left or right until they are
properly aligned, as shown above.
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 11
RowGuide Display Settings
RowGuide Display Settings
Once the AFS AccuGuide system has been fully calibrated, navigate to the RowGuide tab in the
toolbox. This is where the RowGuide system can be turned on and off.
• Row Feeler Distance - Actual measured distance from the center of fixed axle to the tip of
sensor rod with header at working height.
• The larger the distance entered, the slower the Row Guidance will be in making
steering changes.
• The smaller the distance entered, the more abruptly the Row Guidance will make
steering changes
• It is not recommended to ‘cheat’ the distance to front axle value to alter the
performance of the system.
• Snap Roller Distance - Actual measured distance from the center of fixed axle to the front of
the snap roller, with header at working height. Do not cheat this number in an effort to change
performance.
• RowGuide Aggressiveness Value - Start at 100 and adjust if needed only after the NAV
Aggressiveness has been tuned. Raise or lower the value based upon how the base
guidance is performing and field conditions.
• RowGuide Trim – This setting is used if the combine is always tracking one direction to
offset. In most cases, this setting should be at 0. If combine is tracking one direction check
RowGuide sensor alignment and make sure all calibrations have been performed.
Case IH AFS RowGuide
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 12
Drive Tab Display Settings
P-Gain & D-Gain Overview
P-Gain - The function of P-Gain is similar to that of the springs on a car. As a car encounters a
bump on the road, the wheels move and then the springs push them back to their original
position. If a stiffer spring is used, less movement is allowed, resulting in a harsher ride. If a
softer spring is used, more movement is allowed, resulting in a smoother ride. In comparing P-
Gain to a spring, a higher P-Gain value would be like a stiffer spring, resulting in harsher
steering response. A lower value would be like a softer spring, resulting in a smoother steering
response. (Note: P-Gain values will be different for every vehicle.)
D-Gain - The function of D-Gain is similar to that of the shock absorbers on a car. As a car
encounters a bump and the wheels move, the shock absorbers dampen the wheel movement to
prevent excessive bouncing. A car with new shocks has a nice, smooth ride, whereas a car with
old shocks tends to bounce excessively. In comparing D-Gain to a shock absorber, a D-Gain
value of 0 is like a car without shocks, resulting in no dampening of steering movement. A
properly set D-Gain value is comparable to a car with new shocks, resulting in a dampening of
excessive steering movement.
When P-Gain and D-Gain are properly set, the combine will be reactive enough to follow turns in
the corn row, but will not hunt on straight rows.
Case IH AFS RowGuide
The RED line would represent the
movement of a car with a spring
with no shock. Comparatively, this
would represent the cross-track
error of a vehicle that overshoots
the guidance line due to a P-Gain
value that is too high and a D-Gain
value that is too low or near zero.
The BLUE line would represent the
movement of a car with a spring and
a shock that over-dampens spring
movement. Comparatively, this
would represent a vehicle that is
sluggish to acquire the guidance line
due to a P-Gain value that is too low
and a D-Gain value that is too high.
Time (sec)
Cro
ss-Tra
ck E
rror (in
)
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 13
Drive Tab Display Settings
Adjusting P-Gain & D-Gain
Once all other calibrations and set-up have been completed, only then should P-Gain and D-
Gain be adjusted. These adjustments can correct a combine that is sluggish to obtain a
guidance line or one that may overshoot the guidance line. Note: When you set P-gain and D-
gain, you will want aggressiveness and row guide aggressiveness at 100 (this allows you to fine
tune them after setting P/D-gain).
1. From the main screen, press the “Toolbox” button.
2. Navigate to the “Drive” tab.
3. Scroll down the page to find “DGPS Steering P Gain”.
4. Press the “DGPS Steering P-Gain” window, enter the desired value then press “Enter”.
P-Gain Value: Start with the default value (3000) and adjust up until a slight ‘hunt’ is produces.
5. Scroll down the page to find “DGPS Steering D Gain.”
6. Press the “DGPS Steering D-Gain” window, enter the desired value then press “Enter.”
D-Gain Value: Start with the default value (10000), and if steering response is still edgy,
increase the value to fine tune (smooth) steering performance.
Case IH AFS RowGuide
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 14
Display & RowGuide Status Icons
Display Status Icons
These icons are used to inform the operator of the status of the AccuGuide system or the reason
the system was not able to engage.
Case IH AFS RowGuide
RowGuide Operation Modes
These icons are used to inform the operator of the status of the RowGuide system.
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 15
Summary
The AFS RowGuide represents a new level of simplicity, control, and precision when it
comes to harvesting. The integrated RowGuide system provides the flexibility and ease of use
that today’s top producers demand.
Show your customers how the AFS AccuGuide guidance system and AFS RowGuide can deliver
an impressive return on their investment. Whether the customer is looking for reduced operator
fatigue, improved performance in down corn, or more consistent crop feed, the AFS AccuGuide
and AFS RowGuide systems have what it takes to achieve outstanding performance in the field.
Take this opportunity to review this information on AFS RowGuide and Sell the Axial-Flow
Advantage!
Case IH AFS RowGuide
Grain Harvesting GH-2168-14
2/13/2014 Case IH Product Information 16
The information presented herein is intended for sales education
purposes and is intended for the use of CNH Industrial America
LLC, its affiliates, and its independent dealers only. This information
is to be treated as CONFIDENTIAL and is not to be used for
advertising purposes. Competitive comparisons are based on
competitive information known at time of printing. Sources of
information include published industry specifications and data.
General statements made herein are the opinions of the authors
concluded from supporting data.
Note:
Specifications are stated in accordance
with industry standards or recommended
practices, where applicable.
Important:
CNH Industrial America LLC reserves the
right to change product specification
without notice and without incurring any
obligation relating to such changes.
Any trademarks referred to herein in
association with the goods and/or
services of companies other than
CNH Industrial America LLC are the
property of those respective companies.
© copyright CNH Industrial America LLC
2014
Visit Case IH on the Web at
www.caseih.com
CNH INDUSTRIAL AMERICA LLC
700 STATE STREET
RACINE, WI 53404 U.S.A.