KUHN GMD 3150 TL CE User manual

Original instructions
7N136AGB-A
Read carefully before starting the machine
OPERATOR'S MANUAL
Disk mower
A0001 >
GMD 3150/3550/4050 TL CE
7N136AGB-A - English - 06-2016
*7N136AGB_A*

1. - Dear Owner
GMD 3150/3550/4050 TL CE
1
7N136AGB-A
Disk mower
1. Dear Owner
Copyright 2016 KUHN
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. We therefore reserve 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 highlyon the conditions of use (products to handle, soil, weather
conditions, etc...).
Designated use of the machine
The GMD 3150/3550/4050 TL mower must only be used for the purpose for which it was manufactured:
mowing on the ground of hay fields, grass silage fields and improved pastures for the purpose of harvesting
fodder for feeding livestock.

GMD 3150/3550/4050 TL CE
22. - Contents
7N136AGB-A
Disk mower
2. Contents
1. Dear Owner .....................................................................................................................1
2. Contents..........................................................................................................................2
3. Identification of the machine.........................................................................................4
3.1 Front view ........................................................................................................................................ 4
3.2 Rear view......................................................................................................................................... 4
3.3 Model identification plate .................................................................................................................5
3.4 Optional equipment.......................................................................................................................... 5
4. Safety...............................................................................................................................6
4.1 Description of symbols used in this document.................................................................................6
4.2 Safety instructions ........................................................................................................................... 7
4.3 Location and description of safety decals on the machine ............................................................ 16
4.4 Road safety equipment and recommendations ............................................................................. 19
5. Machine specifications................................................................................................20
5.1 Description and glossary ...............................................................................................................20
5.2 Technical specifications ................................................................................................................. 22
5.3 Required equipment ...................................................................................................................... 24
5.4 Sound levels ..................................................................................................................................24
6. Putting into service......................................................................................................25
6.1 Coupling and uncoupling ...............................................................................................................25
6.1.1 2-point hitch...................................................................................................................... 26
6.1.2 Hydraulic connections ......................................................................................................30
6.1.3 Electrical connections.......................................................................................................30
6.1.4 Primary PTO shaft............................................................................................................31
6.1.5 Secondary PTO shaft ....................................................................................................... 31
7. Instructions for transport ............................................................................................33
7.1 Putting the machine into transport position....................................................................................33
7.2 Conformity with the road regulations .............................................................................................34

2. - Contents
GMD 3150/3550/4050 TL CE
3
7N136AGB-A
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8. Instructions for work................................................................................................... 35
8.1 Putting the machine into work position.......................................................................................... 35
8.2 Adjustments in working position .................................................................................................... 36
8.2.1 Cutting height................................................................................................................... 36
8.2.2 Reduced or increased ground pressure........................................................................... 40
8.3 Machine use .................................................................................................................................. 42
9. Optional equipment..................................................................................................... 43
9.1 Raised skid shoes ......................................................................................................................... 43
9.2 Secondary PTO shaft with CE shielding........................................................................................43
9.3 Secondary PTO shaft with constant velocity joint and CE shielding.............................................. 43
9.4 2-point hitch................................................................................................................................... 44
9.5 Rock guard.................................................................................................................................... 44
9.6 1000 RPM...................................................................................................................................... 44
9.7 8 spline PTO kit ............................................................................................................................. 44
10. Maintenance and storage............................................................................................ 45
10.1 Frequency chart............................................................................................................................. 45
10.2 Cleaning the machine.................................................................................................................... 46
10.3 Lubrication..................................................................................................................................... 47
10.3.1 PTO shaft ......................................................................................................................... 47
10.3.2 Grease the tongue pivot point (1)..................................................................................... 48
10.3.3 Cutterbar draining and refilling ......................................................................................... 49
10.3.4 Checking cutterbar oil level..............................................................................................51
10.3.5 90 degree gearbox draining ............................................................................................. 52
10.3.6 Draining the Gyrodine gearbox ........................................................................................ 53
10.4 Maintenance.................................................................................................................................. 54
10.4.1 Inspection of knives and securing elements..................................................................... 54
10.4.2 Knife replacement ............................................................................................................ 57
10.4.3 Disc replacement.............................................................................................................. 57
10.4.4 Outer and inner cones...................................................................................................... 60
10.5 Storage.......................................................................................................................................... 61
11. Troubleshooting guide................................................................................................ 62
12. Limited Warranty.......................................................................................................... 63

GMD 3150/3550/4050 TL CE
43. - Identification of the machine
7N136AGB-A
Disk mower
3. Identification of the machine
3.1 Front view
3.2 Rear view

3. - Identification of the machine
GMD 3150/3550/4050 TL CE
5
7N136AGB-A
Disk mower
3.3 Model identification plate
Please write below the type and serial number of the
machine. This information is to be given to the Kuhn
authorized dealer for any spare parts order or
warranty claim.
Type: GMD 3150/3550/4050 TL CE
Serial no.:
3.4 Optional equipment
Tick box corresponding to the equipment fitted on
your machine:
KUHN NORTH AMERICA, INC.
MADE IN USA
MODEL No. SERIAL No.
BRODHEAD, WI 53520
Kit no. 1066310: Raised skid shoes
Kit no. 18968217: Secondary PTO shaft with CE shielding
Kit no. 18968218: Secondary PTO shaft with constant velocity joint and CE shielding
Kit no. 18968056: 2-point hitch
Kit no. 18968053: Rock guard 3150
Kit no. 18968054: Rock guard 3550
Kit no. 18968055: Rock guard 4050
Kit no. 18968025: 1000 RPM
Kit no. 18968216: 8 spline PTO kit

GMD 3150/3550/4050 TL CE
64. - Safety
7N136AGB-A
Disk mower
4. Safety
4.1 Description of symbols used in
this document
This symbol indicates a potentially hazardous
situation that if not avoided, could result in serious
bodily injury.
Thissymbol is used toidentify 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.

4. - Safety
GMD 3150/3550/4050 TL CE
7
7N136AGB-A
Disk mower
4.2 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
any parts of this manual, please contact your KUHN
dealer.
Safety shutdown procedure
Before adjusting, maintaining or repairing the
machine, depressurize hydraulics, turn off the
engine, remove ignition key and wait until all moving
parts have come to a complete stop.
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 liablefor 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.

GMD 3150/3550/4050 TL CE
84. - Safety
7N136AGB-A
Disk mower
Precautions to take before using the
machine
Do not wear loose clothing which could become
caught up in moving parts.
Wear appropriate protective clothing (gloves,
shoes, goggles, hearing protection, etc.).
Ensure that all operating controls (ropes, cables,
rods, etc) are placed so as they cannot be operated
unintentionally and cause damage or injury.
Before operating the machine, check tightness of
nuts and bolts, particularly on fixing elements (tines,
forks, blades, knives, etc). Retighten if necessary.
Before operating the machine, ensure that all the
safety guards are firmly in place and in good
condition. Immediately replace any worn or
damaged guard.
Precautions when driving
Tractor handling, stability, performance and braking
efficiency are all affected by weight distribution,
trailed or mounted implements, additional ballast
and driving conditions. It is therefore of great
importance that the operator exercises caution in
every given situation.
Groundspeed must beadapted to ground conditions
as well as to roads and paths. Always avoid abrupt
changes of direction.
Be particularly cautious when turning corners,
paying attention to machine overhang, length,
height and weight.
Never use a narrow track tractor on very uneven or
steeply sloping ground.
Never leave the tractor seat while the machine is
operating.
Carrying people or animals on the machine when
working or in transport is strictly forbidden.