KUHN EL 131 Assembly & Operators Manual

ASSEMBLY / OPERATOR'S MANUAL

EL 131

POWER TILLER / CULTITILLER / CULTIPLOW

N° 95454 GB.06 - 06.96

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 dependant upon how well you

read and understand this manual and apply this knowledge. Please DO NOT ASSUME THAT

YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR MACHINE before reading this

manual carefully. KEEP THIS MANUAL AVAILABLE FOR REFERENCE.

Your KUHN dealer will instruct you on the general operation of your machine. He is interested

that you 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 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.

When ordering service parts it is important that you indicate the type of machine concerned

and its serial number.

For this reason please complete the model identification plate diagram below with the required

information. This will provide you with an easy reference for future service parts orders.

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.

- 1 -

TABLE OF CONTENTS

PAGE

Safety 2

Safety Decals 7

Technical Specifications 9

Guards 10

Fitting to the tractor 11

PTO Shaft 12

Friction slip clutch 14

Rotor Speed 15

Rollers 16

Use 19

Optional accessories 21

1° Side separating discs 21

2° Gauge Wheel Kit 21

3° Side wheel kit 21

4° Rear wheel kit 22

5° Levelling bar 23

6° Track eradicators 23

7° Side deflectors 24

8° Rear hydraulic lift linkage 24

9° A-frame kit for VENTA AL integrated seeder attachment 27

10° A-frame kit for ACCORD DA integrated seeder attachment 27

11° Semi-automatic hitch 28

12° Lengthened lower link brackets 28

13° Crumbler roller scraper 28

14° Hard coated packer roller scraper plates 29

15° Nylon cleaning plates for packer roller scrapers 29

16° P.T.O. shafts 29

17° Rotors complete 29

18° Set of pinions 19/26 teeth 30

19° Signalling elements 30

Maintenance 32

1° Lubrication 32

2° Fitting blades 33

3° Changing the Rotor 35

Trouble Shooting 36

Conditions of Limited Warranty 39

- 2 -

SAFETY

The symbol above is used throughout this manual every 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

The EL 131 must only be used for the work for which it has been designed :

- Seedbed preparation on ploughed or unploughed ground with or without simultaneous seeding (machine can

be equipped with an integrated or a 3-point mounted seeder).

- Stubble ploughing or reclamation of grassland.

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.

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 manufacturer.

The EL 131 must only be operated, maintained and repaired by competent persons who are familiar with machine

specifications and operation and are aware of any danger involved.

The operator must imperatively respect current legislation concerning :

- accident prevention,

- work safety,

- public traffic circulation.

All safety advice indicated on the machine must be strictly observed.

The manufacturer is not 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 manufacturer.

- 3 -

GENERAL SAFETY RECOMMENDATIONS

Before operating the machine, always ensure that tractor and machine are in accordance with work safety and

road traffic regulations.

BASIC PRINCIPLES

1. In addition to the recommendations given in this manual, legislation on work safety and accident prevention

must also be respected.

2. Advice is indicated on the machine, specifying safety recommendations in order to prevent accidents.

3. Before travelling on public roads, the operator must ensure that the machine conforms to road traffic

regulations.

4. Before starting work, the operator must be familiar with all machine controls, handling devices and their

functions. Once at work, it is too late to do so !

5. Do not wear loose clothing which could become caught up in moving elements.

6. Use a tractor equipped with a safety cab. Keep windows and roof hatch closed for reduced sound level while

operating the PTO driven implement.

7. Before starting up the machine and beginning work, check the surrounding area (beware of children !). Make

sure there is sufficient visibility.

Keep all people and animals away from the danger zone of the machine (risk of projection !)

8. Carrying people or animals on the machine when working or in transport is strictly forbidden.

9. Machine must only be attached to tractor using means provided and in accordance with current safety

standards.

10. Special care should be taken when attaching or removing the machine from the tractor.

11. Before attaching the machine, ensure that the front tractor axle is sufficiently ballasted.

Ballast is to be placed on the supports provided in accordance with instructions of the tractor manufacturer.

12. Do not surpass the maximum axle load or the overall transport weight as prescribed by the tractor

manufacturer.

13. Do not surpass the maximum transport width authorized by road traffic regulations.

14. Before transporting the machine on public roads, ensure that all legally required guards and indicators

(lights, reflectors ...) are in place and in good operation.

15. All operating controls (cords, cables, rods...) must be positioned so that they cannot be set off accidently,

risking accident or damage.

- 4 -

16. Before transporting on public roads, locate the machine into its transport position as instructed in this

operators manual.

17. Never leave the tractor seat while the machine is operating.

18. Drive speed must be adapted to ground conditions as well as roads and paths.

Always avoid abrupt changes of direction.

19. Precision steering, tractor adherence, road holding and efficient braking are influenced by the type of

implement, weight, ballast of front axle, ground or road conditions. It is therefore of utmost importance to

be cautious in every given situation.

20. Be particularly cautious when turning corners, paying attention to machine overhang, length, height and

weight.

21. Before operating the machine, ensure that all safety guards are firmly in place and in good condition. If worn

or damaged, replace immediately.

22. Before operating the machine, check tightness of nuts and bolts, particularly on fixing elements (blades,

tines, knives, spades ...)

23. Keep clear of the machine operating area.

24. WARNING ! Danger of crushing and shearing can exist when components are operated by hydraulic or

pneumatic controls.

25. Before leaving the tractor or before adjusting, maintaining or repairing the machine, turn off the engine,

remove ignition key and wait until all moving parts have come to a complete stop.

26. Do not stand between the tractor and the machine unless the hand brake is tight and/or stops have been

placed under the wheels.

27. Before any adjustments, maintenance or repairs are carried out, ensure that the machine cannot be started

up accidentally.

ATTACHMENT

1. When attaching or removing the machine from the tractor, position hydraulic lift control lever in such a way that

it cannot be set off accidentally.

2. When attaching the machine to tractor hydraulic linkage, ensure that diameter of link pins corresponds to

diameter of ball joints.

3. WARNING ! Danger of crushing and shearing can exist in the lifting zone of the tractor hydraulic linkage !

4. Do not stand between the tractor and the machine when operating the outer control lever of the lift mechanism.

5. In transport, the machine lift mechanism should be stabilized by tractor tie rods to avoid floatation and side

shifting.

6. When transporting machine ensure that it can not be lowered accidentally.

- 5 -

POWER TAKE-OFF

1. Only use PTO shaft supplied with the machine or recommended by the manufacturer.

2. PTO guards must always be in place and in good condition.

3. Check for correct PTO overlap when at work and in transport.

4. Before attaching or removing the PTO shaft, disengage PTO shaft, turn off engine and remove ignition key.

5. If a primary PTO shaft is equipped with a slip clutch or a free wheel, these must be fitted on the machine

PTO.

6. Ensure that PTO shaft is always correctly fitted and locked into place.

7. Make sure guards are correctly in place and secured with the safety chains provided.

8. Before engaging PTO, ensure that PTO speed and direction are in accordance with manufacturer's

recommendations.

9. Before engaging PTO, keep all people and animals clear from the machine.

10. Never engage PTO shaft when tractor engine is turned off.

11. Never surpass PTO angle recommended by the manufacturer.

12. WARNING ! Rotating elements can continue turning momentarily after PTO is disengaged. Keep clear until

all rotating elements are at a standstill.

13. When removing the machine, locate PTO shaft on the supports provided.

14. Fit safety cap on tractor PTO.

15. Replace any worn or damaged PTO guards immediately.

- 6 -

HYDRAULIC SYSTEM

1. WARNING ! Hydraulic system is under pressure.

2. When fitting hydraulic motors or cylinders, ensure that connections have been made correctly, as per

manufacturers instructions.

3. Before connecting hoses to the tractor hydraulics, ensure that tractor and machine circuits are not under

pressure.

4. It is strongly recommended that the operator marks the hydraulic connections between tractor and machine

to avoid making a wrong connection. WARNING ! Functions could be reversed (for example : lift/lower).

5. Check hydraulic hoses regularly ! Worn or damaged hoses must be replaced immediately.

Replacement parts must be in accordance with manufacturers recommendations concerning specifications

and quality.

6. Should a leak be found, take all necessary precautions to avoid accidents.

7. Any liquid under pressure (particularly oil from hydraulics) can penetrate the skin and cause severe injury. If

injured, see a doctor immediately, there could be danger of infection.

8. Before any adjustments, maintenance or repairs are carried out, lower the machine, depressurize the circuit,

turn off the engine and remove ignition key.

MAINTENANCE

1. Before checking any machine malfunction and before adjusting, maintaining or repairing the machine,

disengage PTO, turn off engine and remove ignition key.

2. Check tightness of nuts and bolts regularly. Retighten if necessary.

3. If the machine is raised, prop it up in a stable position before carrying out any maintenance work.

4. When replacing a working part, wear protection gloves and only use standardized tools.

5. It is forbidden to discard any oil, grease or filters. These must be given to waste disposal organisations to

protect the environment.

6. Disconnect power source before any work is done on the electric system.

7. Check safety guards regularly, particularly those that are subject to wear. Replace immediately if damaged.

8. Spare parts used must be in accordance with specifications and standards as defined by the manufacturer.

Use only genuine KUHN parts !

9. Before any electric welding is carried out on tractor or attached machine, disconnect generator and battery

terminals.

10. Repairs on elements under pressure or tension (springs, accumulators etc...) must only be carried out by

competent persons with standardized equipment.

- 7 -

SAFETY DECALS

THE FOLLOWING SAFETY PICTORIALS HAVE BEEN PLACED ON YOUR MACHINE IN THE

AREAS INDICATED. THEY ARE INTENDED FOR YOUR PERSONAL SAFETY AND FOR THE

SAFETY OF THE PEOPLE WORKING WITH YOU. THE TEXT SHOWN ON THEM GIVES THEIR

PRECISE MEANING. KEEP THE PICTORIALS LEGIBLE. IF THEY ARE NOT, REPLACE THEM.

NOTE : Illustrations in this manual show the EL 131 with "signalling elements". These elements are available

as an optional accessory under code No 120 8840.

- 8 -

- 9 -

TECHNICAL SPECIFICATIONS

SPECIFICATIONS EL 131 EL 131

250 300

Working width m (ft) 2,50 (82") 3,00 (910")

Maximum tractor DIN power kW (hp) 96 (130)

Minimum power requirement kW (hp) 52 (70) 59 (80)

PTO speed (rpm) 1000

Rotor diameter mm (") 520 (20")

Number of curved blades on Power Tiller rotor (3 pairs/flange) 60 72

Number of mulch blades on Power Tiller rotor (3 pairs/flange) 60 72

Number of angled blades on Cultitiller rotor 50 60

Number of forged points on Cultitiller rotor 50 60

Number of angled blades on Cultiplow rotor 68 88

Working depth adjustable min. / max. mm (") 80 (3") - 220 (9")

Working depth control with roller or gauge wheel kit

P.T.O. shaft with friction slip clutch

Attachment Cat. 2 and 3

Overall machine width m (ft) 2.74 (9') 3.24 (10' 5")

Weight with packer roller : (kg / lbs)

. Power Tiller version 1502 / 3304 1652 / 3634

. Cultitiller version 1512 / 3326 1662 / 3656

. Cultiplow version 1562 / 3436 1712 / 3766

Weight with crumbler roller : (kg / lbs)

. Power Tiller version 1362 / 2996 1482 / 3260

. Cultitiller version 1372 / 3018 1492 / 3282

. Cultiplow version 1422 / 3128 1542 / 3392

Road Transport

Depending upon the machines dimensions, the user should check with the relevant authorities that it can be

transported legally on public roads.

If the maximum authorised size is exceeded, the user should act according to the legislation in force regarding

transport of oversize equipment.

Selector lever gearbox with interchangeable pinions

to obtain 4 rotor speeds at 1000 rpm PTO yes

- 10 -

GUARDS

1° Frontal safety guards

The safety guards increase the safety of the ma-

chine.

The 2 front safety guards (P), each made up of 2

telescopic tubes, are factory fitted as shown in

photo 1.

The telescopic tubes may have to be moved laterally

in order to clear space for attaching certain accesso-

ries (side separating discs, front wheels...).

Whatever the accessories the machine is equipped

with, the guards must remain fixed and cover the

whole length of the machine as from the outside of

the adjustable lower link brackets (C) (photo 1).

2° Guard extension

Fit the guard extension (1) over the sheet metal guard

(2) of the torque limiter (see photo 2).

- 11 -

Category "2"

Category "3"

* with a category 2 space

between the lower lift arms.

Category "3"

(to be used only in

exceptional cases)

Use preferably the category 3 diameter of the hitch pins for coupling power tiller/ seed drill

combinations (see fig. B).

FITTING TO THE TRACTOR

The EL 131 can be fitted to all tractors equipped with a standard Cat. 2 or 3 three-point hitch. The lower attachment

yokes are locked in a fixed position (factory set) as this setting provides smoother operation on machines with

a horizontal rotor. They can easily be unlocked, allowing them to free float vertically if this setting should be

required (very rolling terrain).

- 12 -

P.T.O. DRIVE SHAFT

Make sure the EL 131 is resting on the ground and is maintained in a stable position with the roller. Clean and

lubricate the gearbox input shaft and slide the mating PTO shaft yoke in place. Before attaching the PTO shaft

to the slip clutch flange, it is essential that both mating surfaces are thoroughly cleaned.

Bring both components together and fix in place using the self-locking screws provided. Tighten all the studs to

a torque setting of 10 daNm (75 ft.lbs) at the same time making sure that the flange is centrally seated.Tightness

has to be checked regularly.

After mounting the EL 131, stabilize the tractor 3-point linkage with whatever means are recommended i.e. the

bars, chains, etc.

Be sure the tractor P.T.O. shaft drive is disengaged and stop engine.

Couple the P.T.O. shaft to the tractor P.T.O stub.

Attachment is correct when machine is horizontal in work position.

With the machine resting on the ground, adjust the top link (P) length to a position where the tractor PTO stub

and the tiller input shaft are parallel.

In working position :

- The 2 angles (K) formed by the centre lines of the yoke and the sliding tubes must be equal and not exceed

a combined angle of 30° when working.

- The sliding tube overlap (L) must be at least 22 cm (8.5") (fig. 3).

With the machine fully raised on the tractor hydraulic linkage :

- The 2 sliding tubes must not completely overlap each other ; a gap (M) of 1 cm (3/8") should exist between end

of sliding tube and yoke.

- Both U joints (K) should operate approximately at the same bent angles which must never exceed 40°

(fig. 3).

Should the above mentioned conditions not exist :

- Shorten both tubes by an equal length, chamfer edges and grease liberally before refitting.

- To avoid noisy running of the PTO shaft when lifting the machine out of work, attach top link (P) so that it is

almost parallel to the lower links (fig. 3).

Important : Always disconnect the tractor PTO drive before lifting the machine into the transport position,

otherwise permanent damage can be caused to the transmission shaft.

Repeat these adjustments each time the machine is mounted to a different tractor.

- 13 -

A safety chain (C) is supplied with the machine to

support the PTO shaft (T) when disconnected to

avoid damage or deterioration due to contact with the

ground.

Attach chain (C) in the hole provided as shown in

photo 4.

To avoid accidents which could be serious, make sure that the guards are always correctly

in place and secured with the safety chains. The safety chain on the machine side must be

attached in the hole provided (see photo 4). All worn or damaged guards must be replaced

immediately.

- 14 -

FRICTION SLIP CLUTCH

The EL 131 is factory equipped with an adjustable friction slip clutch.

Spring pressure is factory pre-set (L=32 mm / 1 1/4") for 96 kW (130 hp) tractors at 1000 rpm PTO (photo 5).

The theoretical average length of springs (R) (L = 32 mm / 1 1/4") is only an indication and can be slightly modified

according to machine width, work conditions and tractor. Too light a spring pressure will allow the plates to slip

continuously or intermittently at frequent intervals, resulting in overheating and rapid wear of the friction plates.

On the other hand, over pressured or completely coil bound springs will provide no protection to the drive

components (this occurs at 31 mm spring length).

IMPORTANT : * Always check if the clutch is set correctly for the work to be carried out. It should feel warm

to the touch during work.

* If the clutch slips excessively (too light a spring pressure, obstacles, etc.), readjust if

necessary and wait until the temperature of the clutch drops to a normal work temperature

of approximately 40°C (104 °F) before getting back to work. If the clutch overheats it will slip

more easily, thus increasing disc wear.

* With L = 31 mm the springs (R) will be completely coil bound and the clutch cannot operate.

Never work with springs fully locked as this risks deteriorating drive line components if an

obstruction jams the rotor. Always loosen at least half a turn.

NEVER FULLY LOCK THE SPRINGS.

Check clutch setting regularly, especially after the machine hasnt worked for a long time. Completely slacken

off the 6 springs (R) by unscrewing their securing nuts, let the friction plates slip for a few seconds then retighten

springs as explained above (to L = 32 mm / 1 1/4").

Note : We recommend that the clutch guard be removed for easier access when carrying out slip clutch

adjustments. Dont forget to bolt guard back in place after adjustments have been made.

- 15 -

ROTOR SPEEDS

The EL 131 must only be driven at 1000 rpm PTO speed.

The selector lever (L) (shown in the neutral position on photo 7) associated with invertable gearwheels enables

4 different rotor speeds to be selected (see table 6).

To invert the two gearwheels the machine must be tilted forwards, thus avoiding oil loss.

To do this, proceed as follows :

- Uncouple the PTO shaft.

- Reduce top link length to the minimum.

- Lift the machine to the maximum.

- Remove the gearbox rear cover.

- Invert gearwheels.

POSITION OF

PINIONS

1st 2nd 1st 2nd 1st 2nd 1st 2nd

1 000 rpm 221 269 289 351 187 225 350 422

24 21 26 19

21 24 19 26

Set installed at factory

PTO SPEED

Optional 19/26 teeth

(Set no 123 7420)

6

BA

= Recommended speeds and fitted as standard for EL 131 POWER TILLER with curved blades or with

mulch blades

B = Recommended speeds and fitted as standard for EL 131 CULTITILLER or CULTIPLOW.

A

SET OF PINIONS

The gearbox is factory fitted with a rear PTO shaft (P) which rotates at the same speed as the tractor PTO shaft

(photo 8). An extra implement can be driven by a secondary PTO shaft which should be assembled and used

according to the legislation in force at the time.

The rear PTO shaft is 1 3/8" 6 spline profile, and must not be used to transmit more than 37 kW (50 hp. It

should not be used with the gears disengaged (neutral) when driving a secondary implement (seed-drill etc.) as

this could damage the gearbox due to a lack of lubrication.

If the rear PTO shaft is not used, always put cover (E) in place (photo 7).

- 16 -

ROLLERS

The operator may choose to equip the EL 131 with :

- either a crumbler roller (welded tubes and removable rods)

- or a packer roller (studs welded onto a cylinder).

The roller is an essential part of the EL 131, it :

- adjusts and controls rotor working depth

- packs the ground behind the rotor to create an ideal seedbed

- increases crumbling efficiency by breaking down the clods

- improves ground levelling.

Adjusting the roller (photo 9)

Adjustment in direction of travel :

The roller can be placed in four different horizontal

positions so that the overhang is reduced to a mini-

mum in relation to the hood. This shift is carried out

with the 3 screws (B) (M 20) on the multi hole arms

(C) and plate (A).

Height adjustment :

The roller height is adjusted at (P). To adjust, proceed as follows :

- Lift the machine behind the tractor,

- Place pin (T) in the hole corresponding to the required height. Make sure that the same hole is used on each

side of the machine.

To raise the roller completely out of work, lift the roller, then place pin (T) in hole (O).

1° PACKER ROLLER : 2,50 m - Kit No. 123 6720

3,00 m - Kit No. 123 6730

The packer roller is particularly for use in wet, sticky conditions. Good crumbling, efficient packing and proper

levelling are always ensured by the studs welded on the outside diameter of the cylinder (the number of which

are specifically calculated for optimal efficiency).

Mud scrapers are an integral part of the packer roller. These scrapers, placed between the rows of studs, ensure

that the roller is cleaned.

- 17 -

b) Adjusting scraper plates

- Slightly loosen fixing bolts (V) of the scrapers (P) so that they slide freely (photo 10).

- Check that their position is central relative to the rows of roller studs. The scraper supports (M) have elongated

holes to allow readjustment if necessary.

- After having checked that the scraper assembly is in its furthest forward position (photo 10), position scraper

plates one at a time so that they are all in contact with the roller. Retighten bolts (V) (photo 10). Make sure that

the plates only lightly touch the roller and do not interfere with its rotation.

c) Cleaning the scrapers

In case of crop or soil build-up, to clean, it is recommended that the scraper assembly is pivoted to the rear around

the two upper bolts (R) (one on left-hand side of scraper assembly and the other on the right) (photos 10 and 11).

- Loosen the self-locking nuts (S) (photo 11).

- Release the two eyebolts (Q).

- Remove the two lower bolts (R) (one on left-hand side of scraper assembly and the other on the right).

- To facilitate pivoting the scraper assembly, use a lever in each of the two holes (L) situated at each end of the

connecting tube (H) (photos 10 and 11).

a) Assembly of the packer roller and scrapers

When assembling the roller, take particular care

concerning the direction of rotation. The direction of

rotation is indicated on the decal affixed to the side of

the roller.

Fit the roller and the scraper bar holders (D) onto the

2 swinging roller arms (B) using the bearing housing

and the 8 screws (U) (torque to 10 daNm / 74 ft.lbs).

Then bolt the scraper bar (H) onto holders (D) using

the 4 screws (R). Do not fully tighten these bolts at

this stage. Check that all the cleaners (P) of the

scraper are in the retracted position.

Position the 2 eybolts (Q) (photo 11).

Using the two nuts (S) tighten against the tensioners

to pivot the scraper towards the roller until the two

elongated holes almost butt out (photo 11). Thereaf-

ter tighten the four bolts (R) and adjust the scraper

plates (P) as described below.

- 18 -

2° CRUMBLER ROLLER : 2.50 m - Kit No. 123 6430

3.00 m - Kit No. 123 6440

The crumbler roller is ideal for dry and slightly humid conditions. It is made up of fixed welded tubes (F) and

removable bars (G), held in place by round support rings (photo 12).

With removable bars in place :

Recommended in dry conditions for fine tillage and

levelling with good ground packing.

Without removable bars in place :

Recommended in more humid ground, less risk of

roller clogging. Tillage and levelling are coarser.

Bars can be removed as follows :

- Remove inside roll pins

- loosen the bars using a hammer

- pull out the bars.

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KUHN EL 131 Assembly & Operators Manual

KUHN EL 131 Assembly & Operators Manual

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