KUHN KMS208 User manual

COMPLEMENTARY INSTRUCTIONS
Precision Seed Drills
KMS208-KMD112
NC0001 GB A
- English - 11-2005

Dear Owner
Precision Seed Drills
KMS208-KMD112
1
$DEAR OWNER
In buying a Kuhn machine you have chosen wisely. Into it have gone years of thought, research and
improvements. You will find, as have thousands of owners all over the world, that you have the best that
engineering skill and actual field testing can produce. You have purchased a dependable machine, but only by
proper care and operation can you expect to receive the performance and long service built into it.
This manual contains all the necessary information for you to receive full efficiency from your machine. The
performance you get from this machine is largely dependent on how well you read and understand this manual
and apply this knowledge. Please DO NOT ASSUME YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR
MACHINE before reading this manual carefully. KEEP THIS MANUAL AVAILABLE FOR REFERENCE. Pass
it on to the next owner if you re-sell the machine.
Your KUHN dealer can offer a complete line of genuine KUHN service parts. These parts are manufactured and
carefully inspected in the same factory that builds the machine to assure high quality and accurate fitting of any
necessary replacements.
About improvements
We are continually striving to improve our products. It therefore reserves the right to make improvements or
changes when it becomes practical to do so, without incurring any obligations to make changes or additions to
the equipment sold previously.

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KMS208-KMD112
Contents
$CONTENTS
Dear Owner..................................................................................................................... 1
Contents.......................................................................................................................... 2
Safety .............................................................................................................................. 3
Description of symbols used in this document ............................................................................ 3
General description ......................................................................................................................... 4
Description ....................................................................................................................................... 4
Description of the connection ........................................................................................................ 5
Putting into service........................................................................................................ 8
Operation.......................................................................................................................................... 8
Trouble shooting guide ................................................................................................................. 18
Wiring diagram of the main cell harness..................................................................................... 22
Wiring diagram of the main declutching mechanism harness.................................................. 23
Connector connection................................................................................................................... 24
Installation diagram ..................................................................................................... 25
KMS208 on MAXIMA...................................................................................................................... 25
KMS208 and KMD112 on MAXIMA................................................................................................ 26
KMS208 and KMD112 on PLANTER ............................................................................................. 27
KMS208 on PLANTER.................................................................................................................... 28
Limited warranty .......................................................................................................... 29

Safety
Precision Seed Drills
KMS208-KMD112
3
$SAFETY
1. Description of symbols used in this
document
This symbol indicates a potentially hazardous situation
that if not avoided, could result in serious bodily injury.
This symbol is used to identify special instructions or
procedures which, if not followed strictly, could result in
machinery damage.
This symbol is used to communicate technical
information of particular interest.

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KMS208-KMD112
General description
$GENERAL DESCRIPTION
1. Description
Control box KMS208 is used to monitor the passage of
seeds. It can control 8 rows at most.
If there is an anomaly in one row, no seeds detected for
3 seconds or declutching fault, a buzzer and visual alarm
are triggered
Declutching box KMD112 can only work when coupled
to a KMS208 or KMS412 control box.
It can be used to declutch up to 8 rows, no matter what
the row or the moment..

General description
Precision Seed Drills
KMS208-KMD112
5
2. Description of the connection
The box is powered by the tractor's 3-pin plug (DIN 9680,
ISO 12369) or the battery power cable supplied.
Part no. 83233001
Number Colour of
cable
Function
2 - 15/30 Brown + 12 V
3 - 31 Blue Earth
1 - 82 - Not used
The power cable (83233001) must be
connected directly to the battery (clean lugs)
to guarantee that the boxes work properly.
For tractors equipped with a battery cut-out,
the power cable must be connected just
behind this.
The 25 amp fuse must be in position
For connection to the tractor's own socket,
make sure there is a fuse on the tractor side.

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KMS208-KMD112
General description
Passage check KMS208 only
Passage check KMS208 and declutching
box KMD112
0
1 : To the cell machine harness
2 : Supply
0
1 : To the cell machine harness
2 : Supply
3 : Interconnection control KMS208 /
declutch KMD112
4 : To machine declutch harness (4)

General description
Precision Seed Drills
KMS208-KMD112
7
Connection plate on the machine
The connection plate allows uses to adapter the cell (1)
and declutch (2) connections quickly when changing the
machine configuration.
The numbers of the connectors on the connection plate
match the numbers on the boxes.
The two left-hand rows 1 are for the cells.
The two right-hand rows (2) match the declutching
mechanisms.
If the number of rows on the machine is changed :
- change the wiring for the rows on the connection
plate.
Example :
Removing row N° 4 on an 8-row machine for a new 7-row
seed drill machine configuration :
- disconnect row 4 from the panel
- wire rows 5, 6, 7 and 8 to positions 4, 5, 6, 7
The initial row 4 must stay disconnected from the panel.
When switching on, the KMS208 will detect 7 rows
(LEDs 1 to 7 on).
For a machine equipped with declutching mechanisms,
changing 2-pin connections on the connection plage
must follow the same logic.
Unwired rows must be connected with a plug (provided)
to prevent the electrical contacts from being damaged.

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KMS208-KMD112
Putting into service
$PUTTING INTO SERVICE
1. Operation
Before you start
For sowing under very dusty conditions, if the KMS208
alarm sounds more and more often, the cells must be
cleaned more often.
Power on
Press the on/off button briefly to switch on the monitor.
- Test the alarm buzzer
A buzzer sounds for one second and the green power
indicator comes on.
A cleaning brush is supplied with the box:
clean it at least once a day to prevent the cells
from being clogged.
The on/off button does not switch the
KMD112 declutching box on and off.
To preserve the tractor battery, remember to
disconnect the boxes when the job is
finished..
On the KMD112, set the declutching levers to
a minimum low position to reduce
electromagnet consumption. Tractor
stopped.

Putting into service
Precision Seed Drills
KMS208-KMD112
9
Detection of cells connected to the box
when switching on
Power on :
the box detects signals from the cells to determine how
many of them are connected
The rows corresponding to connected cells light up for
1.5 second in red (1) then 1.5 seconds in green (2)
This allows the operator to verify that the number of rows
controlled matches the number of rows used for sowing.
The number of rows connected is only detected when
the box is switched on.
If the cell connections and number of rows are changed
during the job, the box must be switched off and on again
to be updated.
On switching on and before sowing, check
that all the cells are detected and match the
seed drill configuration (LEDs on).

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KMS208-KMD112
Putting into service
Cell test
The KMS208 box is used to to test the LEDs and cells.
Access to the function :
The monitor is off
- Hold the on/off button down for 5 seconds (1).
- A beep resounds
- Release the button.
All the LEDs flash red (2).
This lets you verify that the LEDs are working properly.
then they go out (3).

Putting into service
Precision Seed Drills
KMS208-KMD112
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Function test:
- Pass a screwdriver through the infrared beam (1).
A "beep" sounds and the corresponding LED in the row
lights up in red (2) as the object goes through the beam.
Example :
row n° 3.
- Switch off the box to leave test mode.

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KMS208-KMD112
Putting into service
Adjusting sound intensity.
Adjusting alarm intensity :
The monitor is off
- Hold the on/off button down for 10 seconds (1)
- To wait until the 2nd beep resounds
all the LED are on in fixed red.
- Release the button.(2)
(the buzzer sounds for 2 seconds).
Changing sound intensity :
- press successively on the on/off button (3)
Each pulse will switch off 1 LED (intensity will fall).
The buzzer will sound for 1 second at its new intensity.
To return to 8 LEDs on when there is only 1:
- give an extra pulse (4)
If you don't press the on/off button for more than 5
seconds, the box automatically quits this adjustment
phase, registering the last adjustment made..
The setting remains in memory even if the power to the
box is switched off.
A single LED remaining on indicates that the
buzzer is only at 20% of its power.
8 LEDs on corresponds to maximum power.

Putting into service
Precision Seed Drills
KMS208-KMD112
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Working with KMS208 only.
When stopped :
All the row LEDs are off (1).
Seed drill in normal operating mode :
- The LEDs corresponding to the working rows are lit up
in green (2)
- LEDs for rows not detected when the box was
switched on remain off.
Detecting a sowing error in a row :
If the monitor does not detect any seed for more than 3
seconds in one or more rows,
- The corresponding LED starts to flash in red (1) and
the buzzer comes on for 3 seconds
If the anomaly persists
- The buzzer repeats after 60 seconds.
As soon as the anomaly stops:
- The corresponding LEDs are once more lit up in green
- The buzzer stops (2).
Detecting the end of sowing :

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KMS208-KMD112
Putting into service
If all the rows stop sowing at the same time, the monitor
considers that the operation is finished (the seed drill is
raised at the end of the line or forward motion is stopped
temporarily).
- The LEDs go out and two 1 second "beeps" sound
These beeps also warn the user when all the rows stop
sowing (stop time 3 seconds or more) because of a
problem on the machine
• distribution drive rupture
• seed drill accidentally raised due to incorrect
adjustment of the tractor's effort.
Reminder of alarms after sowing is finished :
When a row is under alarm status and the user stops
The LED for the row with the alarm continues
to flash in red for 30 seconds (3) after the end
of sowing is detected.
This function allows the user to note which
rows are in alarm status so that he can then
solve the problem.

Putting into service
Precision Seed Drills
KMS208-KMD112
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Extra functions with KMD112
The KMD112 declutching box can only work with a
KMS208 passage control box or a KMS412 population
control box.
Declutching a row :
Raise the corresponding lever switch (1)
The corresponding LED comes on in fixed red (2)
a buzzer sounds

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KMS208-KMD112
Putting into service
Engaging the clutch for one row :
- Lower the corresponding lever switch
The appropriate LED lights up in green if the seed drill is
working or goes out if the seed drill is stopped.
- a buzzer sounds.
Starting sowing with the switch in declutched
position :
When sowing starts again following a halt and the
switches are in declutched position (1)
- 4 short "beeps" (2) sound for 10 seconds after sowing
starts.
These beeps remind the user that the rows are
declutched, thus providing information about a risk
relative to the sowing operation.
Detecting a declutching error in a row (2) :
When a row is declutched (1), the KMS208 verifies that
the seeds have stopped flowing.
If the monitor detects the passage of a seed in a
declutched row
- the corresponding LED starts flashing red (2)
• a 3-second buzzer (3) sounds.
If the anomaly persists
- The buzzer repeats after 60 seconds
As soon as the anomaly stops
- the corresponding LEDs light up again in red and the
buzzer stops
The "Alarm reminder" function described in
the previous chapter also applies to alarms
triggered by a declutching fault.

Putting into service
Precision Seed Drills
KMS208-KMD112
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Table summarising operations :
KMS208 alone
KMS208 coupled to the KMD112 :
Row status Indication KMS208 Functioning
All the rows are stopped All the LEDs are off Normal
Row being sown LED on and green Normal
seeds flow past the cell
Row faulty LED flashes red
Buzzer
Fault
there are no seeds moving past the cell
Position of the
declutching lever
Row status Indication
KMS208
Functioning
DOWN All the rows are stopped All the LEDs are off Normal
DOWN Row being sown LED on and green
Normal
seeds flow past the cell
DOWN Row faulty LED flashes red
Buzzer
Fault
there are no seeds
moving past the cell
UP All the rows are stopped LED on and red Normal
UP Row declutched
Electromagnet on
LED on and red
Normal
there are no seeds
moving past the cell
UP Row faulty LED flashes red
Buzzer
Fault
seeds flow past the cell

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KMS208-KMD112
Trouble shooting guide
$TROUBLE SHOOTING GUIDE
Problem Cause Remedy
Low battery power indicator
Low battery power indicator
low battery power
indicator
< 10 Volts
The warning light is
on
Check:
- battery status
- in the charge circuit
- in the connectors
- in battery connecting lugs
- in the power cable
The KMS208 does not come on
The power LED does not light
up No power Check:
- power supply 12 Volts
When pressing the on/off
switch
- The power LED does not light
up
- all the LEDs in the rows light up
briefly in red
- 4 "beeps" sound
Short-circuit
between the earth
and the 8 Volt cell
power supply
disconnect all the rows at the
connection plate on the cell harness
switch on the KMS208
If the anomaly persists
Check:
- the condition of the main cell harness
As soon as the anomaly stops
- reconnect the rows one by one
- check KMS208 functions
(this helps identify the faulty row)
To test the faulty row
- Disconnect and verify the resistance between points 1 and 3 of the cell on the harness side
The resistance must be infinite (> Megaohms)
- Check the condition of the cable (crushed or trapped)
When the problem is solved, reconnect everything and switch on the KMS208