KUHN RA 125 User manual

7N200AUS_A
Read carefully before starting the machine
OPERATOR'S MANUAL
Reel Mixers -
Trailer Type
---A1053-70A00001 >
RA 125/130
- English (USA) - 01-2021
7N200AUS_A
*7N200AUS_A*

1. - Dear Owner
RA 125/130
1
7N200AUS_A
Reel Mixers - Trailer Type
1. Dear Owner
Copyright 2021 KUHN
You have just purchased a KUHN machine. We thank you for the trust in us you are showing by selecting
us. Into this equipment have gone years of thought, research andimprovement which have led to its design,
manufacture and continuous improvement.
This manual, which must be considered an integral part of the machine, contains all the necessary
information for you to receive full effiency from your machine. It also contains all the instructions for safe
use of the machine. We therefore recommend that you read it carefully and follow all the instructions to the
letter. The machine's proper functioning and service life depends on it, as well as your safety and that of
others. This manual must always accompany the machine even in case of resale.
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.
Wearing 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 RA 125/130 mixer feeder must only be used for work for which it has been designed: mixing of fodder,
silage, hay, mixing with sub-products or additives for feeding cattle, and transport and distribution in the
feeding areas.

RA 125/130
22. - Contents
7N200AUS_A
Reel Mixers - Trailer Type
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 Identification of the machine............................................................................................................ 5
3.3.1 Location of the plates ......................................................................................................... 5
3.3.2 Description.......................................................................................................................... 5
3.4 Optional equipment.......................................................................................................................... 6
4. Safety...............................................................................................................................7
4.1 Description of symbols used in this document.................................................................................7
4.2 Safety instructions ........................................................................................................................... 8
4.3 Location and description of safety decals on the machine ............................................................16
4.3.1 Alternate language safety decal sets................................................................................ 23
4.4 Road safety equipment and recommendations .............................................................................24
5. Machine specifications................................................................................................25
5.1 Description and glossary ...............................................................................................................25
5.2 Technical specifications ................................................................................................................. 27
5.3 Lights ............................................................................................................................................. 29
5.4 Lifting points...................................................................................................................................33
6. Putting into service......................................................................................................34
6.1 Coupling and uncoupling ...............................................................................................................34
6.1.1 Tractor PTO horsepower requirements ............................................................................ 34
6.1.2 Tractor weight requirements............................................................................................. 34
6.1.3 Drawbar attachment system............................................................................................. 35
6.1.4 PTO minimum and maximum operating dimensions........................................................ 35
6.1.5 Hydraulic system..............................................................................................................36
6.1.6 Safety lighting................................................................................................................... 36
6.1.7 Attaching the safety tow chain..........................................................................................37
6.1.8 Uncoupling the machine................................................................................................... 37
6.2 Mixer setup .................................................................................................................................... 38
6.2.1 Upper auger knives ..........................................................................................................38
6.2.2 Reel cross/wiper tubes (Standard reel) ............................................................................ 38
6.2.3 Shear bolt.........................................................................................................................39
6.2.3 Shear bolt.........................................................................................................................39
6.2.4 Hay Maxx® System..........................................................................................................39
6.2.5 Power chute adjustment................................................................................................... 40

2. - Contents
RA 125/130
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6.2.6 Tip-off adjustment............................................................................................................. 40
6.2.7 Scale arm positioning....................................................................................................... 41
6.3 Test run the mixer.......................................................................................................................... 42
7. Instructions for transport............................................................................................ 43
7.1 Conformity with the road regulations............................................................................................. 43
7.2 Transport position.......................................................................................................................... 43
8. Instructions for work................................................................................................... 44
8.1 Machine use .................................................................................................................................. 46
8.1.1 Material............................................................................................................................. 46
8.1.2 Loading............................................................................................................................. 48
8.1.3 Fill level ............................................................................................................................ 50
8.1.4 Unloading......................................................................................................................... 50
9. Optional equipment..................................................................................................... 51
9.1 HAY MAXX® SYSTEM.................................................................................................................. 51
9.2 ROUGHAGE MAXX® SYSTEM.................................................................................................... 51
9.3 10’’ hydraulic cylinder for the HAY MAXX® SYSTEM ................................................................... 52
9.4 Power discharge............................................................................................................................ 52
9.5 Slide tray........................................................................................................................................ 52
9.6 Door flow control plate................................................................................................................... 53
9.7 Riser kit.......................................................................................................................................... 53
9.8 Electric switching valve.................................................................................................................. 53
9.9 Safety chain................................................................................................................................... 53
9.10 Reels ............................................................................................................................................. 54
9.11 Stainless steel liners...................................................................................................................... 54
9.12 Partial stainless steel liners ........................................................................................................... 54
9.13 Hitches........................................................................................................................................... 54
10. Inspections and adjustments...................................................................................... 55
10.1 General inspection information...................................................................................................... 55
10.2 Scale system................................................................................................................................. 57
10.3 HAY MAXX® system ..................................................................................................................... 58
10.4 Drive enclosure.............................................................................................................................. 58
11. Maintenance and storage............................................................................................ 59
11.1 Greasing and oil change................................................................................................................ 59
11.1.1 Frequency chart ............................................................................................................... 60
11.1.2 Greasing and oil change points........................................................................................ 61
11.2 Lifting the helix reel........................................................................................................................ 62
11.3 Cold weather precautions.............................................................................................................. 63
12. Troubleshooting........................................................................................................... 64
13. Limited Warranty.......................................................................................................... 66

RA 125/130
43. - Identification of the machine
7N200AUS_A
Reel Mixers - Trailer Type
3. Identification of the machine
3.1 Front view
3.2 Rear view

3. - Identification of the machine
RA 125/130
5
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3.3 Identification of the machine
3.3.1 Location of the plates
3.3.2 Description
Do not remove the manufacturer, homologation and marking plates attached to the machine.
Note the serial number of your machine:
• Serial Number:
This information is to be given to the Kuhn
authorized dealer for any spare parts order or
warranty claim.
Model identification plate
1: Manufacturer name and address
3: Brand
4: KUHN logo
5: Description of the machine
7: Model
9a: Machine serial number
9b: Barcode (Machine serial number)
12: Weight empty (Minimum/Maximum)
18: Data matrix
19: Plate reference
27: Place of manufacture
28: Manufactured by... for...
34: Special operation
3: Brand
9: Serial Nr. 34: Ex
5: Machine
7: Model
lbs
12: Unladen Mass min/max
lbs
1
34
18
19
3
9a
5
7
12 28
27
9b
4

RA 125/130
63. - Identification of the machine
7N200AUS_A
Reel Mixers - Trailer Type
3.4 Optional equipment
Check the boxes corresponding to the equipment
fitted on your machine:
Contact your Kuhn/Kuhn Knight dealer for scale
indicator options and add-ons.
Standard reel
Helix reel
Roughage Maxx®
Hay Maxx®
Slide tray discharge
24’’ 3-auger discharge
36’’ 3-auger discharge
36’’ Chain and slat discharge
48’’ Chain and slat discharge
Stainless steel liners
Partial stainless steel liners
Bucket guards
Transport light kit - Standard
Transport light kit - Export
Door flow control
6’’ Riser
Electric switching valve
Hydraulic cylinder for Hay Maxx
Ladder
Clevis hitch
Spade hitch
Safety chain

4. - Safety
RA 125/130
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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.
This symbol is used to identify special instructionsor
procedures which, if not followed strictly, could
result in machinery damage.
This symbol is used to communicate technical
information of particular interest.

RA 125/130
84. - Safety
7N200AUS_A
Reel Mixers - Trailer Type
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. Failure to follow the
instructions contained in this manual could result in
product or property damage, severe personal injury,
or death. All applicable safety procedures, codes
and requirements of any federal, provincial, state
and local agencies, as well as safe working
practices and good judgment, must be used by
personnel when assembling, servicing, adjusting or
operating this equipment.
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 qualified persons who are familiar with
the machines' operation and understand safety regulations and procedures for preventing accidents.
The operator must follow the 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.
The intended use of the machine includes following all 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 forany damage or accidentresulting from machine modifications carried
out by the operator himself or by a third party without previous written agreement from the manufacturer.

4. - Safety
RA 125/130
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Reel Mixers - Trailer Type
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 components that the
machine uses to process material (tines, forks,
blades, knives, hammers, 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.
Operator should not climb on ladder or any
part of the mixer when loading, mixing, or
discharging material.
Be sure the inside of the mixer is clear of any
obstruction before operating

RA 125/130
10 4. - Safety
7N200AUS_A
Reel Mixers - Trailer Type
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.
Do not allow anyone to ride on or in the mixer.
Drive speed must be adapted to ground conditions
as well as to roads and paths. Always avoid abrupt
changes of direction. Avoid operating the machine
when making sharp turns or crossing gullies or
ditches.
When working on slopes or inclines, travel uphill or
downhill. Keep the tractor/truck transmission in
gear when going downhill.
Be particularly cautious when turning corners,
paying attention to machine overhang, length,
height and weight.
Avoid driving on loose fill, rocks, inclines, ditches,
and holes.
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.

4. - Safety
RA 125/130
11
7N200AUS_A
Reel Mixers - Trailer Type
Precautions when driving on public roads
Dimensions
Depending on the dimensions of the machine,
contact the relevant authorities to ensure that it can
be legally transported on public roads.
If the machine is over the maximum legal size,
follow the applicable regulations for special
transportation of oversize equipment.
Gross weight and weight per axle
Check that the tractor's authorized gross weight as
well as its lift capacity and maximum weight per axle
are not exceeded.
The front axle load (1) must never, under any
circumstances, be less than 20% of the tractor's
unladen weight. If necessary, add ballast weights to
the front or to the rear to preserve the steering and
braking efficiency.
Transport position
Before transporting the machine on public roads,
place the machine into its transport position,
according to the instructions in this manual.
Lights and indicators
Before transporting the machine on public roads,
ensure that all legally required lights and indicators
are in place.
Make sure that these equipment are clean and in
good working order. Replace any missing or broken
equipment.
Maximum speed
Always keep to the legal speed limit for driving a
tractor-machine assembly on public roads.
Always obey current regulations for driving
on roads.
kg
lb
kg
lb
1
The maximum speed for transport of this
machine is 20 mph (32 kmh).
20
mile/h
Q
8
0
5
0
9
8
0

RA 125/130
12 4. - Safety
7N200AUS_A
Reel Mixers - Trailer Type
Precautions when coupling
Before attaching the machine, make sure that it
cannot accidentally start moving (chock the wheels)
and that the parking stand is in the right position.
The machine must only be attached to the hitch
points provided for this purpose.
Do not stand between the machine and the tractor
or on the machine without having first applied the
tractor parking brake and placed the gearbox in the
neutral position.
Hydraulic circuit
Caution! The hydraulic circuit is under high
pressure. Maximum pressure at work: 3000 PSI/200
bar.
Before adjusting, maintaining or repairing the
machine, perform the safety shutdown procedure.
Regularly make visual inspection to check if
hydraulic hoses are damaged or worn. In case of
normal wear, the hydraulic hoses must be replaced
every 5 years. Damaged or worn hoses must
immediately be replaced. When replacing the
hydraulic hoses, only use hoses with the
specification recommended by the manufacturer of
the machine.
To locate a leak, use appropriate means. Protect
body and hands from liquid under pressure.
Any liquid under pressure (particularly oil from
hydraulics) can penetrate the skin and cause severe
injury. If injured, see a doctor immediately to prevent
danger of infection.
Remote controlled components
Crushing and shearing hazard can exist at the level
of remotely controlled components, especially those
operated by hydraulic or pneumatic energy power.
Keep away from these danger zones.
WARNING! When connecting hydraulic
hoses, functions can easily be reversed and
cause accidents (for example: lift/lower). To
avoid making incorrect connections, mark
hydraulic couplers and corresponding hoses
with colors.

4. - Safety
RA 125/130
13
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Reel Mixers - Trailer Type
PTO shaft
Before attaching or removing a PTO shaft, perform
the safety shutdown procedure.
Use only PTO shafts supplied with the machine or
recommended by the machine manufacturer.
The protective shield of the tractor PTO stub, the
PTO shaft guards and the protective shield of the
machine input shaft must always be in place and in
good condition.
Make sure that the PTO shaft guards are secured
with the safety chains provided, if so equipped.
Immediately replace any worn or damaged guard. A
worn guard or an unprotected PTO shaft can cause
a serious or even a lethal accident.
Do not wear loose clothing that could be caught in
the rotating PTO shaft..
If the primary PTO shaft is equipped with a torque
limiter or a free wheel, these must be fitted on the
machine side.
Ensure that the PTO shaft is always correctly fitted
and locked into place.
Before connecting the PTO shaft, ensure that the
PTO speed (rotational frequency) and direction of
rotation are in line with the machine manufacturer's
recommendations.
Before engaging the PTO drive, make sure that
there are no people or animals near the machine.
Never engage the PTO drive when the tractor
engine is stopped.
When uncoupling the machine, rest the PTO shaft
on the support specially provided, and replace
protective shield on the PTO stub of the tractor.
Read and follow the instructions in the operator's
manual provided with the PTO shaft.
Tires
Regularly check the tire pressure. Refer to
"Inspections and adjustments" section for proper
wheel nut torque and tire pressure information.
Assembly, disassembly and repair of wheels and
tires must only be carried out by competent persons
who are equipped with the appropriate tools. Before
any work is performed on the wheels or tires, ensure
that the machine rests on the ground and is perfectly
stable so that it cannot move accidentally. Always
chock the tires before working on the machine.

RA 125/130
14 4. - Safety
7N200AUS_A
Reel Mixers - Trailer Type
Precautions for machine use
Stay a safe distance from the machine when it is in
use.
Never work in reverse.
If an obstacle is hit, stop the machine and perform
the safety shutdown procedure. Check the entire
machine for any damage before resuming work.
Safety decals
Safety warnings are placed in safety decal form on
various parts of the machine. They are there to warn
you of potential dangers and to tell you how to avoid
accidents.
Always keep the safety decals clean and readable,
and replace them when they are worn, damaged,
missing or illegible.
Waste disposal
Respect the environment! Never spill pollutants (oil,
grease, filters, etc.) on the ground, never pour them
down the drain and never discard them in any other
place where they could pollute the environment.
Never throw away or burn a tire. Always take waste
to specialized recycling or waste disposal centers.

4. - Safety
RA 125/130
15
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Precautions for maintenance and repair
work
Before adjusting, maintaining or repairing the
machine, perform the safety shutdown procedure.
Repairs on elements under pressure or tension
(springs, pressure accumulators, etc.) must only be
carried out by competent persons with regulation
equipment.
Wear appropriate protective clothing (gloves,
shoes, goggles, hearing protection, etc.).
For your own safety and for correct machine
operation, only use original manufacturer parts.
Do not solder, weld or use a blow torch near fluids
under pressure or flammable components.
Make sure at least one tire on each side of the
machine is chocked properly before performing any
maintenance or repairs.
Rest the machine on the ground, release the
pressure from the hydraulic circuit and leave the
machine to cool down.
Make sure that the parts of the machine that need to
be lifted for maintenance or repair work are firmly
propped up.
When welding on this unit: DO NOT allow the
current to flow through the bearings, rollerchains, or
scale weigh bars. Before any work is done on the
electrical circuit or before any electric welding is
carried out on the attached machine, disconnect the
machine from the tractor/truck electrical circuit. Also
disconnect alternator and battery terminals.
If work must be done inside the mixer put a
protective cover over the auger knives to avoid
injury. The hopper and flighting may be slippery.
Use caution when stepping on or standing inside the
machine.

RA 125/130
16 4. - Safety
7N200AUS_A
Reel Mixers - Trailer Type
4.3 Location and description of safety
decals on the machine
2
5
19
4
5
3
17
17
78
15
15
16
18
19
3
17
2
16
17
16
16
1
6
6
17
17
7
8
6
6
WARNING
CRUSHING HAZARD
76117410
Keep a safe distance from
machine when raising or
lowering.
Secure in a raised position
before transport and before
working under or near.
WARNING
CRUSHING HAZARD
76117410
Keep a safe distance from
machine when raising or
lowering.
Secure in a raised position
before transport and before
working under or near.
WARNING
ROTATING PARTS HAZARD
76117420
Do not operate until shields
are in place.
Driven components can be
operated remotely.
Stay clear of rotating parts.
WARNING
ROTATING PARTS HAZARD
76117420
Do not operate until shields
are in place.
Driven components can be
operated remotely.
Stay clear of rotating parts.
20
mile/h
Q
8
0
5
0
9
8
0
20
mile/h
Q
8
0
5
0
9
8
0

4. - Safety
RA 125/130
17
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23
15
1
10
11
9
14
13
23
15 15
12
DANGER
DANGER
DANGER
SHIELD MISSING
DO NOT OPERATE
SHIELD MISSING
DO NOT OPERATE
L2 WEASLER 13-10022-00
L2 WEASLER 13-10022-00

RA 125/130
18 4. - Safety
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Description of safety decals
WARNING Stay clear during operation (1)
DANGER Rotating Auger Hazard (2)
DANGER Rotating Auger Hazard (3)