LEHNER POLARO E Datasheet

LEHNER
POLARO®E
Operating instructions with spare parts list
Control LAS 4
Software from version 3.3
Status: January 2019
Serial number: ..................................................................
Software version: ..............................................................
Original operating
instructions

LEHNER Maschinenbau GmbH
Haeuslesaecker 14
D-89198 Westerstetten, Germany
Tel.: [phone]
Fax: [phone]
www.lehner.eu
[email protected]
This document may not be distributed, duplicated or utilised,
nor may its content be communicated without express
permission. Compensation will be sought for all breaches. All
rights reserved in the event of patent, utility model or design
registration.
English

4
Table of contents
Contents
1 What you should know......................................................6
1.1 Foreword ................................................................................................ 6
1.2 About these operating instructions......................................................... 6
1.3 Description of the POLARO®E .....................................................................7
1.4 Intended use........................................................................................... 9
1.5 Reasonably predictable misuse ............................................................. 9
1.6 Warranty................................................................................................. 9
1.7 About your safety ................................................................................. 10
2 Mounting and starting .....................................................11
2.1 Installing the frame............................................................................... 11
2.2 Mountingthehopperanddeectorplate.............................................. 12
2.3 Electrical connection ............................................................................ 13
2.4 Filling the spreading material hopper ................................................... 14
3 Operating the POLARO®E................................................... 15
3.1 Controls on the control console............................................................ 15
3.2 Indicators in the display........................................................................ 16
3.3 Switching the spreading disc and agitator on and off........................... 17
3.4 Setting the speed ................................................................................. 19
3.5 Setting the slide opening...................................................................... 19
3.6 Opening/closing the slide ..................................................................... 20
3.7 Setting the working width ..................................................................... 21
3.8 Setting the spreading zone................................................................... 22
3.9 Empty sensor ....................................................................................... 22
3.10 Calibrating the empty indicator............................................................. 23

5
Table of contents
4 Settings and displays ......................................................24
4.1 Making settings .................................................................................... 24
4.2 Language ............................................................................................. 25
4.3 Selecting the empty indicator ............................................................... 25
4.4 Setting the signal for the electronic lifting gear control (EHR).............. 26
4.5 Adjusting the empty indicator ............................................................... 27
4.6 Displaying the spreader type................................................................ 28
4.7 Headland manager (optional accessory).............................................. 28
4.8 Checks ................................................................................................. 30
4.9 Spreading widths and turning procedure.............................................. 31
5 Maintenance and cleaning ..............................................32
5.1 Maintenance......................................................................................... 32
5.2 Cleaning ............................................................................................... 35
5.3 Transport and storage .......................................................................... 35
6 Appendix...........................................................................36
6.1 EC Declaration of Conformity............................................................... 36
6.2 Identication ......................................................................................... 37
6.3 Distribution box layout plan .................................................................. 38
6.4 Troubleshooting.................................................................................... 39
6.5 Spare parts list for the POLARO®E .................................................... 40
6.6 Spare parts list for the control unit........................................................ 42
6.7 Spare parts list for the hopper.............................................................. 44
6.8 Spare parts list for the saline agitator................................................... 46
6.9 Wacker spreading chart ....................................................................... 48

6
1 What you should know
1.1 Foreword
Congratulations on purchasing the POLARO®E, a high-quality and
innovative product. Thank you for placing your trust in us.
Thanks to its advanced design, meticulous material selection, state-
of-the art manufacturing techniques and the precision work of our
employees,thisequipmentmeetsallefciency,quality,reliability
and value requirements.
Maintaining and servicing according to the operating instructions
ensures the safety of the equipment and maintains the value of
your POLARO®E.
1.2 About these operating instructions
These operating instructions are part of the POLARO®E and must
always be readily available. They must be read, understood and
followed by everybody who works with the POLARO®E. Keep the
operating instructions for future use. If you come to sell your
POLARO®E, give the buyer these operating instructions;
they are an integral part of the equipment.

7
1 What you should know
Warnings
Warningsintheseoperatinginstructionsareidentiedasfollows:
Danger!
Warning against immediate danger. Non-observance
of appropriate measures may result in death or severe
personal injury or serious damage to property.
Warning!
Warning of possible danger. Death, severe personal injury
or serious damage to property are possible.
Caution!
Warning of possible dangerous situations. Slight personal
injury or damage to property is possible.
1.3 Description of the POLARO®E
The POLARO®E is a spreader for spreading winter salt, grit, sand and
granulated fertilisers and comprises a solid frame, a spreading material
hopper and the electrical components. The frame includes the spreading
disc with slider/dosing equipment. The electrical components comprise
the drive motor, sensors and magnets, distribution control box, control
console cable, control cable, battery cable and control console.
A separate motor drives a slow-running agitator for grit, sand, smooth
owingsaltorgranulatedfertiliser.Asanalternativeforslow-owing
or damp salt, a special saline agitator is available as an accessory.
This agitator is mounted in an upright position in the hopper.
Thespeedofthespreadingplate,thedosingunitandtheowquantity
can be regulated from a control panel in the driver's cab.
The POLARO®E can be mounted on the front or rear of approved
carrier vehicles.

8
1 What you should know
Technical data
POLARO®E 70 POLARO®E
110
POLARO®E
170
POLARO®E
250
Dimensions L/W/H 570/485/870
mm
570/485/1050
mm
700/626/1070
mm
670/800/1100
mm
Unladen weight 29 kg 38 kg 42 kg 53 kg Capacity 70 l 110 l 170 l 250 I Volumetric capacity Salt
90 kg 140 kg 220 kg 325 kg
Operating voltage 12 to 15 Volts Fuse 25 Ampere Power of drive motor (spreading disc) 100 W Power of mixer motor 150 W Speed range 40 to 600 rpm Standard speed of agitator 54 rpm Speed of saline agitator 27 - 29 rpm Power consumption of motor Start up to 25 A
Normal operation up to 13 A
Operating temperature -10°C to +70°C Storage temperature -30 °C to +70°C Length of battery cable 3 m 5 m 5 m 5 m Length of control console cable 2 m 2 m 2 m 2 m Length of control cable 3 m 6 m 6 m 6 m

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1.4 Intended use
The POLARO®E is a spreader for spreading winter salt, grit, sand and
granulated fertilisers.
1.5 Reasonably predictable misuse
Only use on approved carrier vehicles with suitable on-board electrical
systemsandsufcientstructuralintegrity.
Only use for approved media. The equipment must not be used for
spreading crop protection products.
1.6 Warranty
We offer a 24 month warranty on the POLARO®E.
Warranty repairs must be coordinated with the manufacturer before
any work is started.
For replacement parts, additional expenses are automatically
charged for any changes made to cables and plugs by the customer.
Replacement parts are to be returned carriage paid.
Any changes to cable or plug connections without factory approval
automatically invalidate the entire warranty. Rusted bearings are not
subject to the manufacturer's warranty. Motors may not be opened or
dismantled.
On receipt:
Check your POLARO®E for transport damage on receipt.
Any such damage must be reported to the manufacturer
within 24 hours of receipt.
1 What you should know

10
1 What you should know
1.7 About your safety
• Carefully read and observe these operating instructions before use.
Always keep this manual to hand at the point of use.
• Observe the accident prevention regulations, safety and operating
regulations and the regulations for environmental protection.
• Observe all applicable standards and guidelines.
• Observe the safety instructions.
• Before operation, check that the hopper is correctly seated in its
mounting and that the spreader is safely and correctly attached to the
carrier vehicle.
• Do not operate the spreader if there are technical safety defects.
• Immediately resolve any safety-related defects.
• Whentravellingonpublicroadsandstreets,observetheroadtrafc
regulations.
• There must be no other persons in the spreading zone.
• Switch off the motor before troubleshooting.
• Disconnect the electrical power supply for maintenance work.
• Never open the hopper when the agitator is running.
• Do not reach into the hopper during operation.
• Never reach into the rotating or blocked spreading disk whilst the motor
is running.
• Comply with the regulations of the spreading material manufacturer.
• It is essential to comply with the instructions of the spreading material
manufacturer in question.
• Spreading tables and additional information about the spreading
material used can be requested from the spreading material
manufacturer in question.
• LEHNER Agrar GmbH cannot accept any liability for the storage and
application of the spreading material.

11
2 Mounting and starting
2.1 Installing the frame
Warning!
Risk of injury due to high component weight
Thespreaderissignicantlyheavierwhenthehopperis
full. Attention must therefore be paid to the proper mounting
of the spreader on the carrier vehicle, and to the carrying
capacity of the vehicle tailgate or other panels. If necessary,
twithassistance.
Warning!
Risk of injury
The load carrying capacity shall be based on the regulations
for load bearing equipment.
Warning!
Risk of injury
Do not operate the spreader if there are technical safety
defects.
The POLARO®E can be mounted on the front or rear of the tractor,
off-road vehicle or ATV.
The POLARO®E can be mounted using an auxiliary bracket. Mounting
holes are provided on the back of the framework for this purpose.
Remove the hopper before mounting the spreader.
The recommended delivery height is 0.40 - 0.80 m. For further
information and the required speed and slide opening for Wacker
winter salt, see chapter 6.6 - Wacker spreading chart.
For the values for other spreading products, please refer to the
information provided by the spreading material manufacturer.
For information on disassembly, see chapter 5.1 - Maintenance.

12
2 Mounting and starting
2.2 Mountingthehopperanddeectorplate
Warning!
Risk of injury and damage to the spreader
Asanalternativeforslow-owingsalt,arenedsaltagitator
is available as an accessory. This agitator is not suitable for
grit or sand.
1. Mount the hopper.
2. Checkwhetherthehoppertswellinthehopperplatformatthe
bottom.
3. Usingscrews,attachtheincludeddeectorplatetothespreader
(arrow).
4. Check that the POLARO®E is securely attached.

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2.3 Electrical connection
Caution!
Risk of functional failures
Faulty or incorrectly dimensioned plugs and cables can lead
to malfunctions. Only use original plugs and cables, or ones
approved by the manufacturer.
Caution!
Danger of short circuit
Ensure that the cable is not routed over any sharp edges.
Any changes to cable or plug connections without factory approval
automatically invalidate the entire warranty. Changes to cables
undertaken by the customer shall be subject to additional charges in
the event of repairs.
1. Mount the support for the control console in the vehicle cabin.
2. Plug the control console cable into the three-pin socket 1of
the carrier vehicle.
If such a socket 1 is not available, use the battery cable supplied:
• Connect terminal 2to the negative terminal of the battery
(not to the bodywork).
• Connect connector 3(with fuse 4) to the positive terminal of
the battery
• Route the end of the cable with socket 1into the carrier vehicle.
2 Mounting and starting

14
3. Plug the spreader cable into the 16-pin socket of the control panel.
To ensure an optimum electrical power supply, use the supplied
battery cable.
Caution!
Danger of short circuit
Observe the installation instructions of the adapter
manufacturer.
Whenttinga12/24Vadapter(availableasanaccessory)itis
necessary to connect a separate on/off switch in the 24 V supply cable,
as the adapter consumes current in standby mode.
Your equipment is now ready to operate.
2.4 Filling the spreading material hopper
Caution!
Health risk
Comply with the regulations of the spreading material
manufacturer.
Warning!
Risk of injury
Never open the hopper or touch the spreading disc when
the drive motor is running.
1.Fill the hopper with spreading material immediately before
starting work.
2. Afterlling,closethehopper.
2 Mounting and starting

15
3 Operating the POLARO®E
3.1 Controls on the control console
1 2 3
654
1 Switching on / off
2 Display
3 Opening and closing the slide
Slide open: green LED lights up
Slide closed: yellow LED lights up
4 Setting the speed or slide opening
5 Switch to change between speed and slide
6 Empty indicator

16
3 Operating the POLARO®E
3.2 Indicators in the display
1 Arrow denotes the active line
2 Spreading disc speed
3 Slide opening
4 OK sign for open slide
Blockade Teller
Schieb n. auf
For more information, see chapter 6.4 - Troubleshooting.
Speed
Slide
Disc blockade
Slide not open

17
3 Operating the POLARO®E
3.3 Switching the spreading disc and agitator on and off
Danger!
Risk of injury by accident
When travelling on public roads and streets, observe the
roadtrafcregulations.
Warning!
Risk of injury
The drive motor starts immediately when switched on. Make
sure that no-one is in the danger area when you switch the
system on.
Warning!
Risk of injury
Do not operate the spreader if there are technical safety
defects.
Press the button to switch on the
equipment. The speed of the spreading
disc and the slide opening is displayed.
The slide is always closed when
the equipment is switched on; this
allows the slide to be calibrated in its
0 position.
> RPM 200
Slide 29
If this message is displayed, a cable is damaged or
a plug disconnected. > RPM 200
Spr. connection
Low temperatures can cause the empty indicator to respond slowly.
To check the adjustment:
Let the spreader run for approx. 1 minute with the slide closed.
If the slide is now opened, the empty indicator must respond after
approx. 5 seconds.
If this does not happen, adjust the empty indicator in the negative range
by 5%. For more information, see chapter 4.5 - Adjusting the empty
indicator.

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3 Operating the POLARO®E
Autostart/automatic freewheeling
Ifamotorisdifculttostartduetoheavyloads,startthemotorupto
10 times in alternating motor direction. For this, the slider must be open
sothatthematerialowsout.Iftheagitatororspreadingdiscstillcannot
break free, the motor is automatically switched off.
The following message is shown in the display:
Agitator stationary, if the agitator cannot break free.
Disc blockage, if the spreading disc cannot break free.
Warning!
Risk of injury due to unexpected starting of
the agitator or spreading disc
Switch off the motor before troubleshooting.
To eliminate the blockage:
1. Switch off the machine.
2. Manually turn the spreading disc or empty the hopper.
For more information, see chapter 6.4 - Troubleshooting.

19
3 Operating the POLARO®E
3.4 Setting the speed
If necessary, press the toggle switch to
select the speed; the arrow points to
therstlineinthedisplay.
> RPM 200
Slide 29
Press the key to set the rotary speed.
The speed can be steplessly adjusted from
40 - 600 rpm. In the display, the setpoint
speed is shown for ten seconds, and only
then followed by the actual speed.
3.5 Setting the slide opening
If necessary, press the toggle switch to
select the slide. The arrow points to the
second line in the display.
Speed 200
> Slide 29
Press the key to set the slide opening.

20
3 Operating the POLARO®E
3.6 Opening/closing the slide
Warning!
Risk of injury
The drive motor starts immediately when switched on. Make
sure that no-one is in the danger area when you switch the
system on.
Press the button to open or close the slide.
Slide open: green LED lights up.
Slide closed: yellow LED lights up.
> RPM 200
Slide 29 OK
Slide monitoring
Iftheslidedoesnotreachthespeciedpositionwithin10seconds,
the spreader switches off.
The following message is shown in the display:
Slide not open or Slide not closed. 5 warning signals also sound.
Warning!
Risk of injury
Switch off the motor before troubleshooting.