KUHN HR303M User manual

OPERATOR'S MANUAL
Power harrows
HR303D/M
KN110FGB A
- English - 12-2006

Dear Owner
Power harrows
HR303D/M
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.
Designated use of the machine
HR303D / HR303M power harrows must only be used for work for which they have been designed: Seedbed
preparation on ploughed ground or in min-tilled ground with or without simultaneous seeding.
Document illustrations
The illustrations in this manual may be based on one type of machine only. However, all instructions apply to all
machines covered in this manual.

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HR303D/M
Contents
$CONTENTS
Dear Owner..................................................................................................................... 1
Contents ......................................................................................................................... 2
Identification of the machine ........................................................................................ 4
Front view ......................................................................................................................................... 4
Rear view .......................................................................................................................................... 4
Model identification plate................................................................................................................ 5
Optional equipment ......................................................................................................................... 6
Safety .............................................................................................................................. 8
Description of symbols used in this document ............................................................................ 8
Safety instructions........................................................................................................................... 9
Location and description of safety decals on the machine....................................................... 17
Road safety equipment and recommendations .......................................................................... 20
Machine specifications................................................................................................ 21
Description and glossary .............................................................................................................. 21
Technical specifications................................................................................................................ 22
Required equipment ...................................................................................................................... 23
Sound levels................................................................................................................................... 26
Putting into service...................................................................................................... 27
Coupling and uncoupling.............................................................................................................. 27
Instructions for transport............................................................................................ 48
Putting the machine into transport position ............................................................................... 48
Conformity with the road regulations .......................................................................................... 48

Contents
Power harrows
HR303D/M
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Instructions for work....................................................................................................49
Putting the machine into work position ...................................................................................... 49
Adjustments in working position .................................................................................................49
Machine use ................................................................................................................................... 51
Optional equipment......................................................................................................53
Sets of gearwheels ........................................................................................................................ 53
Standard linkage............................................................................................................................ 55
Hydraulic lift linkage...................................................................................................................... 56
Hydraulic lift linkage stroke limiters ............................................................................................ 61
High capacity hydraulic lift linkage.............................................................................................. 62
Track eradicators........................................................................................................................... 67
Front or rear levelling bar ............................................................................................................. 69
Lighting and signalling ................................................................................................................. 70
Front semi-automatic linkage....................................................................................................... 70
Adaptation parts for VENTA LC.................................................................................................... 71
Adaptation parts for VENTA AL and VENTA TI ........................................................................... 71
Adaptation parts for INTEGRA ..................................................................................................... 72
Maintenance and storage ............................................................................................73
Cleaning the machine.................................................................................................................... 74
Lubrication ..................................................................................................................................... 75
Maintenance................................................................................................................................... 79
Storage ........................................................................................................................................... 86
Trouble shooting guide................................................................................................87
Limited warranty...........................................................................................................89

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HR303D/M
Identification of the machine
$IDENTIFICATION OF THE MACHINE
1. Front view
2. Rear view

Identification of the machine
Power harrows
HR303D/M
5
3. Model identification plate
Please write below the type and serial number of the
machine. This information is to be indicated to the dealer
for all spare parts orders.
Type: HR303D / HR303M
No:

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HR303D/M
Identification of the machine
4. Optional equipment
Tick box corresponding to the equipment fitted on your
machine:
HR303D and HR303M
 Kit no. 1246020: Standard linkage.
 Kit no. 1246030: Hydraulic lift linkage.
 Kit no. 1246040: Hydraulic lift linkage stroke limiters.
 Kit no. 1239140: High capacity hydraulic lift linkage.
 Kit no. 1238840: Track eradicator mounting yokes.
 Kit no. 1216610: 2 track eradicators with traction bolt overload mechanism.
 Kit no. 1216620: 2 track eradicators with spring overload mechanism.
 Kit no. 1238660: Front or rear levelling bar.
 Kit no. 1238170: Signalling equipment.
 Kit no. 1238950: Signalling equipment specific to Italy.
 Kit no. 1237950: Semi-automatic front linkage category 2.
 Kit no. 1237960: Semi-automatic front linkage category 3.
 Kit no. 1286369: Adaptation parts for VENTA LC.
 Kit no. 1286168: Floating adaptation parts for adaptation of VENTA AL and VENTA TI roller.
 Kit no. 1286267: Rigid adaptation parts for adaptation of VENTA AL and VENTA TI.
 Kit no. 1616350: Floating adaptation parts for INTEGRA roller (Packer PK2 roller and Maxipacker roller).
 Kit no. 1616363: Floating adaptation parts for INTEGRA roller (Packliner roller).
 Kit no. 1616373: Rigid adaptation parts for INTEGRA.

Identification of the machine
Power harrows
HR303D/M
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HR303D
HR303M
 Kit no. 1237930: Set of gearwheels (24 and 32 teeth matching gears).
 Kit no. 1239130: Set of gearwheels (21 and 35 teeth matching gears).
 Kit no. 1237420: Set of gearwheels (19 and 26 teeth matching gears).

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HR303D/M
Safety
$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.