KUHN PRIMOR User manual

1
INSTRUCTION MANUAL
PRIMOR STRAW BLOWER
A73101043 09-00
PLEASE READ CAREFULLY BEFORE USING THE MACHINE

2
Manufacturer’s address: KUHN-AUDUREAU S.A., B.P. 19, F-85260 LA COPECHAGNIERE
IMPORTANT INFORMATION
TheKUHNmachinethatyouhavejustpurchasedhasundergoneafullrangeofinspectionsthroughout
themanufacturingprocess. If you should encounter afaultin spite of all the caregivento the manufac-
tureof your machine, please contact yourdealer who will solvetheproblem with the assistanceof our
after-sales service.
To enable us to satisfy your requirements, please provide the information below when you call us. It
will only take you a few minutes to fill in this page when your machine is delivered but it will save you
a lot of time in the event of a problem.
1- GENERAL DATA
Note the machine references here.
KUHN
PRIMOR
Type of machine Sequence number in the series Date commissioned
2 - OPTIONAL EQUIPMENT
Tick the boxes corresponding to the options fitted to your machine.
Electric control Wide angle PTO shaft
Rectangular bales kit Chute type of standard Primor on Primor PH
Sealed floor Category 2/3 linkage bar

3
CONTENTS
Page
MESSAGE TO THE USER _________________________________ 4
SAFETY INSTRUCTIONS ___________________________________ 5 - 10
SAFETY LABELS _________________________________________ 12
LIGHTING EQUIPMENT _____________________________________ 14
DESCRIPTION OF THE PRIMOR STRAW BLOWER _____________ 16 - 17
TECHNICAL SPECIFICATIONS
MountedPRIMOR _________________________________________ 18 - 19
Semi-MountedPRIMOR _______________________________________ 20 - 21
Description of the Controls ____________________________________ 22 - 25
STARTING UP ___________________________________________ 26
Hitching ___________________________________________________ 27
Adjusting the Position of the Controls ____________________________ 30
Transmission Systems ______________________________________ 31
Hydraulic and Electrical Connections ___________________________ 33
Preliminary Checks ________________________________________ 34
No-Load Tests ______________________________________________ 35
Unhitching ________________________________________________ 35
MACHINE OPERATION
Loading the Bales ________________________________________ 36
Straw Blowing ______________________________________________ 37
Transport __________________________________________________ 38
OPTIONS ________________________________________________ 39
Wide-Angle PTO Shaft ______________________________________ 41
Category 2/3 Linkage Bar ____________________________________ 41
Straw Blowing Chute for PRIMOR Chopper _______________________ 41
Anti-Clogging Kit for Rectangular Bales __________________________ 42
MAINTENANCE _________________________________________ 43
Conveyor Chain Tension ____________________________________ 44
Tyres _____________________________________________________ 45
Oil Change _________________________________________________ 45 - 46
MaintenanceSchedule _______________________________________ 47
Storage ____________________________________________________ 48
TROUBLESHOOTING GUIDE _______________________________ 49 - 50
GENERAL CONDITIONS OF WARRANTY _____________________ 51 - 52

4
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 ma-
chine, 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 ma-
chine. The performance you get from this machine is largely dependent upon how well you read and
understand this manual and apply this knowledge. This is a simple machine but in which causes for
trouble are often overlooked even though apparent. These troubles are normally shown in poor work,
thoughthey arelargelydueto naturalwearofpartsnotbeingin originaladjustmentconditions.Therefore,
pleaseDONOT ASSUME THATYOUKNOW HOW TOOPERATE ANDMAINTAIN YOURMACHINE
before reading this manual carefully.
KEEPTHISMANUAL AVAILABLE FOR REFERENCE.
Your KUHN dealer will instruct you on the general operation of your machine. He wants you to get the
best performance possible and will be glad to answer any special questions that may arise regarding
the operation of the KUHN machine.
Your KUHN dealer can offer a complete range 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
KUHN is continually striving to improve its products and, 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.

5
SAFETY
The symbol above is used throughout this manual each time recommendations are made concerning
your safety, the safety of others, or the good operation of the machine.
These recommendations must be made known to all machine operators.
DESIGNATED USE OF THE MACHINE
PRIMOR straw blowers must only be used for the jobs for which they have been designed.
- Loadingofroundorrectangularbales,transportanddistributionof straw for forage and bedding
down.
The manufacturer can not be held liable for any damage resulting from using the machine in ways
other than those specified by the manufacturer.
Any use other than the designated operation is at the risk and responsibility of the operator.
Designated use of the machine also means:
- following operation, maintenance and repair recommendations given by the manufacturer;
- using only genuine spare parts, equipment and accessories as designated by the manufactu-
rer.
PRIMOR straw blowers must only be used, serviced and repaired by skilled persons who are familiar
with the characteristics and operating modes of the machine. These persons must also be aware of
the dangers to which they are exposed.
The operator must imperatively respect current legislation concerning:
- accidentprevention,
- work safety,
- public traffic circulation.
All safety advice indicated on the machine must be strictly observed.
The manufacturer cannot be held liable for any damage resulting from machine modifications carried
out by the operator himself or by a third party without previous written agreement from the manufactu-
rer.
GENERAL SAFETY RECOMMENDATIONS
Before operating the machine, always ensure that tractor and machine conform with work safety and
road traffic regulations.

6
GENERAL POINTS
1. In addition to the instructions contained in this manual, comply with safety and accident
preventionlegislation.
2. Warnings affixed to the machine provide indications on safety measures to be applied and help
to avoid accidents.
3. When driving on public roads, follow the Highway Code in your country.
4. Before starting work, the user must familiarise himself with the machine’s operating controls
and their respective functions. Once work has begun, it will be too late.
5. The user must avoid wearing loose clothing which may get caught up in a moving part.
6. The use of a tractor with a safety cab is recommended.
7. Before switching on the machine and starting work, check around the machine (beware of
children!).Make sure that you have sufficient visibility! Keep people and animals away from the
danger area of the machine (risk of projection!).The machine must be used by one person only.
8. It is strictly prohibited to use the machine to carry persons or animals whilst in operation or
transit.
9. The machine must only be hitched to the tractor at the points provided in accordance with the
safety standards in force.
10. When hitching and unhitching the machine, put the stand or stands in the correct position and the
loading device in the inoperative position (arm lowered, grab retracted).
11. Take great care when hitching the machine to the tractor and when uncoupling it.
12. Before hitching the machine, make sure that there is sufficient ballast on the front axle of the
tractor. Ballast should be added to the special supports according to the tractor manufacturer’s
instructions. The front axle load must be not be less than 20% of the unladen tractor weight.
13. Do not exceed the maximum axle weight and the gross vehicle weight rating.
14. Do not exceed the maximum vehicle gauge allowed on public roads.
15. Before entering public roads, make sure that all guards and signalling devices (lights, reflectors,
etc.) required by law are fitted and working properly.
16. All remote controls (cords, cables, linkages, etc.) must be positioned such that they cannot
accidentally set off an operation which may lead to a risk of accident or damage.
17. Before entering public roads, put the machine into the transport position in accordance with the
manufacturer’s instructions (arm and grab retracted, body in the transport position, delivery
chute and cover folded back).

7
18. Never leave the driver’s position while the tractor is running.
19. You shouldalwaysadapt your speed anddrivingto the track, road orland. Avoidsudden changes
of direction in all circumstances.
20. Beware!Before operating theloadingdevice(gate) and raising the body,makesurethatthere can
be no accidental contact with a power line.
21. Beware! Never stand by the delivery chute while the machine is in operation.
22. If cut or injured on contact with the products contained in the machine, disinfect immediately in
order to avoid risks of infection.
23. Steering accuracy, tractor adhesion, roadholding and effective braking are affected by factors
such as the weight and nature of the towed machine, ballasting of the front axle and state of the
land or road. It is therefore essential to apply the degree of care appropriate to each particular
situation.
24. Be extra careful in bends and remember to take account of the overhang, length, height and
weight of the machine.
25. Before using the machine, make sure that the guards are fitted and in good conditions.
Damaged guards must be replaced immediately.
26. Beforeusing the machine,checkallscrews and nuts particularly thoseholdingthetools (conveyor
slats, swivel chute, gate, etc.). Tighten up if necessary. Also check drive chain and conveyor
chain tension and tighten up if loose.
27. Do not stand in the working area of the machine.
28. Beware! Crushing and shear zones may exist on remote controlled components, particularly
hydraulically or pneumatically-assisted ones.
29. Before getting down from the tractor or before any operations on the machine, switch off the
engine, remove the key from the ignition and wait until all moving parts are at a standstill.
30. Do not stand between the tractor and the machine until the parking brake has been applied and/
or chocks placed under the wheels.
31. Before working on the machine, make sure that it cannot be started up accidentally.
32. Do not use the loading components (gate) as lifting gear. Do not stand on these components.
HITCHING
1. On hitching or unhitching the machine from the tractor, put the hydraulic lift control lever in such
a position that the lift cannot be activated accidentally.
2. When hitching the machine to the tractor’s 3-point lifting system, make sure that the diameters of
the pins or trunnions correspond to the diameter of the tractor ball joints.

8
3. Beware! There is a risk of crushing and shearing in the 3-point lifting zone.
4. Do not stand between the tractor and the machine when operating the external lift control.
5. In transit, the machine must be stabilised with the lifting system chains to prevent rocking back
and forth or from side to side.
6. When transporting the machine in the raised position, lock the lift command lever.
7. Only use the tractor hook, yoke or eyebolt to hitch the machine to the tractor.
8. Never hitch the machine to the hole-type drawbar or to the swinging drawbar of the tractor
when taking onto the road.
9. Set the body to the recommended transport height (see table of specifications).
DRIVING COMPONENTS
(PTO and universal drive shafts)
1. Read the operating instructions supplied with the drive assembly carefully.
2. Only use the universal drive shafts supplied with the machine or recommended by the manufac-
turer.
3. PTO and universal drive shaft guards must always be fitted and in good condition.
4. Make sure the universal drive shaft tubes overlap correctly, in both the working and transport
position.
5. Before connecting or disconnecting a universal drive shaft, disengage the PTO, switch off the
engine any remove the key from the ignition.
6. If the primary universal drive shaft is fitted with an overload clutch or a free wheel, it is essential
that they are mounted onto the PTO of the machine.
7. Always make sure that the universal drive shafts are mounted and locked correctly.
8. Make sure that the universal drive shaft guards are prevented from rotating by the special chains.
9. Before engaging the PTO, make sure that the speed setting and direction of rotation comply with
the manufacturer’s instructions.
10. Before engaging the PTO, make sure that there are no persons or animals near the machine.
11. Never engage the PTO with the tractor engine switched off.
12. Disengagethe PTOwhenever the universal driveshaft angle limitsindicated by the manufacturer
are in danger of being exceeded.
13. Beware! After disengaging the PTO, moving parts continue to rotate for a few seconds.
Keep away until they have stopped.
14. On unhitching the machine, rest the universal drive shafts on the special supports.

9
15. When the universal drive shaft has been disconnected from the tractor PTO, refit the protective
cap.
16. Any damaged PTO and universal drive shaft guards must be replaced immediately.
17. Beware! Only use the machine with a PTO speed of 540 min-1.
18. Pay attention not to damage the drive assembly during lifting operations..
HYDRAULIC CIRCUIT
1. Beware! The hydraulic circuit is under pressure.
2. On fitting the hydraulic motors and rams, make sure that the circuits are connected correctly
according to the manufacturer’s instructions.
3. Before connecting a hose to the tractor’s hydraulics, ensure that the tractor and machine circuits
are not under pressure.
Make sure that the hydraulic pressure and return connections on the tracteur are correct as any
error could affect machine operation.
4. Check the hydraulic hoses regularly! Damaged or worn hoses must be replaced immediately.
When replacing hydraulic hoses, make sure that only hoses with the characteristics and quality
specified by the manufacturer of the machine are used.
5. When tracing a leak, take appropriate precautions to avoid an accident.
6. Any liquid under pressure, especially hydraulic fluid, can pierce the skin and cause serious injury.
In case of injury, seek medical advice immediately. There is a risk of infection.
7. Beforecarryingoutanyoperations on the hydraulic circuit,lowerthe machine, fully retract thearm
and grab ram rods, switch off the engine and circuit pressure and remove the key from the igni-
tion.
8. Never change the order of commands or the direction of movements on the hydraulic circuit.
9. In the case of an auxiliary unit, the gear selector lever must be in neutral.
10. Check that all safety valves on the body lift rams are working properly.

10
ELECTRICAL CIRCUIT
Before connecting up the machine’s electrical circuit:
- check the state of the electrical circuit (harnesses, fuses and lighting);
- check the state and cleanness of the power socket.
TYRES
1. Before carrying out any operations on the tyres, make sure the trailer is perfectly stable and
cannot move accidentally (fit chocks).
2. Wheelsand tyresmustonlybefitted,removedandrepairedbypersonswiththeexpertiserequired
to do so and possessing the appropriate regulatory tools.
3. Check tyre pressure regularly. Inflate to the pressure indicated by the manufacturer.
4. Check wheel nut tightness regularly.
SERVICING
1. BEFORE CARRYING OUT ANY MAINTENANCE, SERVICING OR REPAIR WORK OR WHEN
INVESTIGATING THE CAUSE OF A FAILURE OR MALFUNCTION, THE PTO MUST BE
DISENGAGED, THE ENGINE SWITCHED OFF, THE IGNITION KEY REMOVED AND THE
MACHINE RESTING ON THE GROUND.
2. Check regularly that screws and nuts are tight. Tighten if necessary.
3. Before proceeding with any maintenance work on a machine in the raised position, prop up the
machine with an appropriate support.
4. WHEN CLEARING A BLOCKAGE OR REPLACING A WORKING PART, WEAR PROTECTIVE
GLOVES AND ONLY USE APPROPRIATE TOOLS.
5. Toavoidenvironmentalcontamination, it is forbidden to throw away or dump any type of oil, grease
or filter. Hand them over to specialist recovery firms.
6. Before carrying out any operations on the electrical circuit, disconnect the power source.
7. Any protective devices liable to wear should be checked regularly. Replace them immediately if
they are damaged.
8. Spare parts must comply with the standards and specifications laid down by the manufacturer.
Only use KUHN original spare parts.
9. Before carrying out any electrical welding work on the tractor or towed machine, disconnect the
cables from the alternator and battery.
10. Repairs affecting components under tension or pressure (springs, pressure accumulators, etc.)
requireappropriateskillsandregulatorytools. They must therefore only be carried out by qualified
personnel.

11
NOTES

12
LABELS RELATING TO SAFETY
Adhesivelabelshave been placed on your machineasrepresented below. Their object istocontribute
to your safety and to that of others as well as to the correct operation of the machine. Read their
contents and check their location. Read the labels, as well as the instructions contained in the user
manual, with the operator of the machine.
Keep the labels clean and legible. Replace them when they become damaged.
PRIMOR
strawblower
PRIMOR
strawblower

13
CHECKCHAINTENSIONREGULARLY
CHECK REGULARLY THE TYRES PRESSURE AND
THAT WHEEL NUTS ARE TIGHT
ALWAYS KEEP YOUR HAND AWAY FROM THE
CRUSHINGAREAUNTILALLMOVINGPARTS ARE AT
ACOMPLETE STANDSTILL
BEFORECARRYINGOUTANY MAINTENANCE ON
THE MACHINE, SWITCH OFF THE TRACTOR
ENGINE,REMOVETHEKEY FROM THE IGNITION
ANDWAIT UNTIL ALL MOVING PARTSHAVE
STOPPED
BEFORECOMMISSIONINGTHEMACHINE,READ
THEINSTRUCTIONMANUAL AND THE RULESOF
SAFETY

14
TRAILED PRIMOR
N.B. This equipment is fitted as standard on trailed machines in accordance with current legislation.
The equipment includes:
- 1 RH tail light (A) (Photo 1)
- 1 LH tail light (B) (Photo 1)
- 2 reflective triangles (C) (Photo 1)
- 2 self-adhesive white reflectors (D) (Photo 2)
- 4 self-adhesive amber reflectors (E) (Photo 2)
- 1 premounted wiring harness (F) (Photo 2)
LIGHTING EQUIPMENT
2
E
FD
B
C
A
1

15
NOTES

16
2
4
5
10
1
7
3
98
11
14
17
12
16
18
13
15
19
6
DESCRIPTION STRAW BLOWER PRIMOR
2
23
21
24
14
12
26 4
27 1
25
22
20

17
1 - Turbine
2 - Control unit
3 - Remote control lines
4 - Gearbox
5 - Yoke
6 - Drive shaft support
7 - Tow bar
8 - Shaft protection bowl
9 - Parking stand
10 - Axle
11 - Wheel
12 - Chain tension inspection flap
13 - Tail light
14 - Gate
15 - Lifting point
16 - Side chute
17 - Flow limiters
18 - Chute ram
19 - Control box
20 - Swivel chute cap
21 - Swivel chute
22 - Electric cap ram
23 - Top link yoke
24 - Bottom point lock
25 - Conveyor drive motor
26 - Beater bar drive motor
27 - Body

18
TECHNICAL SPECIFICATIONS
Mounted PRIMOR
Mounted straw blower and distributor.
Hydraulic loading and distribution system drive.
REP. DEFINITION PRIMOR Mounted PRIMOR Mounted
with pivoting chute
A Overall width when chute closed m 2,25 2,07
A1 Overall width when chute open m 3,00 2,25
Overall length (machine on ground)
B1 Door on ground m 3,26 3,26
B2 Door closed m 2,68 2,68
C Overall height (machine on ground) m 1,81 2,50
E Lateral overhang, chute side m 1,30 1,12
F Lateral overhang, left hand side m 0,95 0,95
G Internal length of hopper m 1,81 1,35
H Internal width of hopper m 1,55 1,55
I Internal height of hopper m 0,90 0,90
J Minimum coupling height m 0,30 0,30
Blowing distance
Standard PRIMOR m 18 12 to 15
Straw blower / chopper PRIMOR PH m 0 to 8
Spreading height
L* Min. m 0,43 2,02
max. m 1,43 2,50
Unladen weight in working order kg 1250 1250
Capacity m3 3 3
Payload kg 950 950
Min. power required
Blowing HP/kw 70/51 70/51
Chopping HP/kw 80/59 80/59
Tractor pressure required bar Min. 150 - Max. 180 Min. 150 - Max. 180
Tractor output min. l/min 25/30 25/30
Tractor output max. l/min 45 45
* Depending on tractor (take account of lifting height)
The electrical control option is only factory-fitted.
Optional equipment:
- Chute type Standard PRIMOR on straw chopper PRIMOR PH
- Linkage bar cat. 2/3
- Rectangular bales kit.

19

20
TECHNICAL SPECIFICATIONS
REF. DEFINITION PRIMOR Trailed PRIMOR Trailed with
pivoting chute
A Overall width (chute closed) m 2,38 2,20
A1 Overall width (chute open) m 3,12 2,25
Overall length (machine on ground)
B1 Door on ground m 4,10 4,10
B2 Door closed m 3,55 3,55
Max. room required in height
D1 * Machine on ground m 1,98
D2 * Axle at max. height m 2,64
E Lateral overhang, chute side m 1,30 1,12
F Lateral overhang, left-hand side m 1,06 1,06
G Internal length of hopper m 2,30 2,30
H Internal width of hopper m 1,55 1,55
I Internal height of hopper m 0,90 0,90
J Minimum coupling height m 0,20
Blowing distance
Standard PRIMOR m 18 12 to 15
Straw blower / chopper PRIMOR PH m 0 to 8
Spreading height
L* Min. m 0,55 2,10
Max. m 2,00 2,49
M Gauge m 1,78 1,78
N Wheelbase m 3,26 3,26
Normal transportation height m 0,50 0,50
Unladen weight in working order kg 1650 1650
Total laden weight kg 2600 2600
Capacity m3 3 2
Payload kg 950 950
Tyres 185/75X14 185/75x14
Tyre pressure bar 2,40 2,40
Min. power required
Blowing HP/kw 50/36 50/36
Chopping HP/kw 80/59 80/59
Tractor pressure required bar Min. 150 - Max. 180 Min. 150 - Max. 180
Tractor output min. l/min 25/30 25/30
Tractor output max. l/min 45 45
* Depending on tractor (take account of lifting height)
The electrical control option is only factory-fitted.
Optional equipment:
- Chute type Standard PRIMOR on straw chopper PRIMOR PH
- Wide angle PTO shaft - Rectangular bales kit.
Semi-Mounted PRIMOR
Semi-mounted straw blower and distributor.
Hydraulic loading and distribution system drive.