KUHN GA8121 User manual

Original instructions
KN202BGB F
OPERATOR'S MANUAL
Gyrorake
GA8121
KN202BGB F
- English - 09-2014

Dear Owner
Gyrorake
GA8121
1
KN202BGB F
$Dear Owner
In buying a Kuhn machine you have chosen wisely. Into it have gone years of thought, research and
improvement. 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
through 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.
Wear parts
Wearing parts fitted on our machines have been tested in very different situations to optimize their service
life.Nevertheless, the service life depends highly on the conditions of use (products to handle, soil, weather
conditions, etc...).
Designated use of the machine
The GA8121 Gyrorake must only be used for the work for which it has been designed: raking on the ground and
forming windrows of pre-mowed fodder and straw.
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.
Copyright 2014 KUHN

Gyrorake
2
GA8121
Contents
KN202BGB F
$Contents
Dear Owner.....................................................................................................................1
Contents..........................................................................................................................2
Identification of the machine.........................................................................................4
Rear view (working position)...........................................................................................................4
Rear view (transport position).........................................................................................................4
Model identification plate ................................................................................................................5
Optional equipment..........................................................................................................................6
Safety...............................................................................................................................7
Description of symbols used in this document.............................................................................7
Safety instructions...........................................................................................................................8
Location and description of safety decals on the machine .......................................................18
Road safety equipment and recommendations...........................................................................21
Machine specifications................................................................................................24
Description and glossary...............................................................................................................24
Technical specifications................................................................................................................26
Compulsory equipment .................................................................................................................27
Sound levels ...................................................................................................................................28
Putting into service......................................................................................................29
Description of control elements....................................................................................................29
Coupling and uncoupling..............................................................................................................29
Instructions for transport............................................................................................40
Putting the machine into transport position................................................................................40
Conformity with the road regulations...........................................................................................43

Contents
Gyrorake
GA8121
3
KN202BGB F
Instructions for work................................................................................................... 44
Putting the machine into work position.......................................................................................44
Adjustments in working position..................................................................................................46
Machine use....................................................................................................................................51
Optional equipment.....................................................................................................55
1 3/8’’ - 6 spline pto shaft...............................................................................................................55
1 3/8’’ - 6 spline pto shaft (With free wheel clutch) .....................................................................55
32x38 - 8 spline pto shaft...............................................................................................................55
Flow divider ....................................................................................................................................56
Swath curtain..................................................................................................................................57
Bogie axle suspension ..................................................................................................................58
3D axle suspension........................................................................................................................58
Check chains..................................................................................................................................58
Bogie axles .....................................................................................................................................59
SUPERBALLOON spare wheel......................................................................................................60
7 pin plug (Only for North America) .............................................................................................60
Spacer for straw .............................................................................................................................60
Clearance lights..............................................................................................................................61
SMV sign.........................................................................................................................................61
Maintenance and storage............................................................................................ 62
Frequency chart .............................................................................................................................62
Cleaning the machine....................................................................................................................63
Lubrication......................................................................................................................................63
Maintenance....................................................................................................................................71
Storage............................................................................................................................................77
Limited warranty.......................................................................................................... 78

Gyrorake
4
GA8121
Identification of the machine
KN202BGB F
$Identification of the machine
1. Rear view (working position)
2. Rear view (transport position)

Identification of the machine
Gyrorake
GA8121
5
KN202BGB F
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: GA8121
Serial no.:
TYPE
MASSE kg
KUHN S.A.
67700 SAVERNE- FRANCE
N°
MADEIN FRANCE
TYPE
MASSE kg
KUHN S.A.
67700 SAVERNE - FRANCE
N°
MADE IN FRANCE

Gyrorake
6
GA8121
Identification of the machine
KN202BGB F
4. Optional equipment
Tick box corresponding to the equipment fitted on your
machine:
PTO shaft
1 3/8 - 6 spline pto shaft.
1 3/8 - 6 spline pto shaft (PTO shaft with free wheel).
32x38 - 8 spline pto shaft (With free wheel clutch + Cam type cut-out clutch).
Flow divider.
Swath curtain.
Bogie axle suspension.
3D axle suspension.
Check chains.
Bogie axles.
SUPERBALLOON spare wheel.
7 pin plug (Only for North America).
Spacer for straw.
Clearance lights.
SMV sign.

Safety
Gyrorake
GA8121
7
KN202BGB F
$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.

Gyrorake
8
GA8121
Safety
KN202BGB F
2. Safety instructions
Read and follow the safety instructions
Before using the machine, carefully read all the safety
instructions in this manual and the warnings placed on
the machine.
Before starting work, the operator must be familiar with
all machine controls, handling devices and their
functions. It is too late to learn once work has been
started!
Never let anyone operate the machine who is not trained
to do so.
Should you have any difficulties in understanding certain
parts in this manual, please contact your KUHN dealer.
Precautions to be taken before carrying out
any operations on the machine
Before leaving the tractor or before adjusting,
maintaining or repairing the machine, disengage the
PTO drive, turn off the engine, remove ignition key and
wait until all moving parts have come to a complete stop
and apply park brake.
Introduction
The machine must only be operated, maintained and repaired by competent persons who are familiar with
machines' specifications and operation and aware of safety regulations for preventing accidents.
The operator must imperatively respect safety instructions in this manual and in the warnings posted on the
machine. The operator is also obliged to respect current legislation concerning accident prevention, work safety
and public traffic circulation.
Designated use of the machine also means following operation, maintenance and repair recommendations
given by the manufacturer, and using only genuine spare parts, equipment and accessories, as recommended
by the manufacturer.
The manufacturer is not held liable for any damage resulting from machine applications other than those
specified by the manufacturer. Any use other than the designated operation is at the risk and responsibility of
the operator.
The manufacturer is not held liable for any damage or accident resulting from machine modifications carried out
by the operator himself or by a third party without previous written agreement from the manufacturer.