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BKE 305 SUPER
Operator's Manual
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KUHN BKE 280 SUPER, BKE 305 SUPER Operator's Manual

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OPERATOR'S MANUAL
JN033AGB A
Shredders

BKE 280-305 SUPER

JN033AGB A
- English - 05-2010
Shredders
$Dear Owner
In buying a Kuhn machine you have chosen wisely. Into it have gone years of thought, research and improvement. You will find, as have thousands of owners all over the world, that you have the best that engineering skill and actual field testing can produce. You have purchased a dependable machine, but only through proper care and operation can you expect to receive the performance and long service built into it.
This manual contains all the necessary information for you to receive full efficiency from your machine. The performance you get from this machine is largely dependent on how well you read and understand th is 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 ar e manufactured and carefully inspected in the same factory that builds the machine to assure high quality and accurate fitting of any necessary replacements.

About improvements

We are continually striving to improve our products. It therefore reserves the right to make improvements or changes when it becomes practical to do so, without incurring any obligations to make changes or additions to the equipment sold previously.

Designated use of the machine

BKE 280-305 SUPER shredders must only be used for the work for which they have been d esigned: shredding of crop residues, set-aside land and green spaces.

Dear Owner

1
Shredders
BKE 280-305 SUPER
$Contents
Dear Owner.....................................................................................................................1
Contents .........................................................................................................................2
Identification of the machine.........................................................................................4
Model identification plate ................................................................................................................5
Optional equipment..........................................................................................................................5
Safety...............................................................................................................................6
Description of symbols used in this document.............................................................................6
Safety instructions...........................................................................................................................7
Location and description of safety decals on the machine .......................................................19
Machine specifications................................................................................................25
Description and glossary...............................................................................................................25
Technical specifications............. ... ... ... .... ... ... ... ... .... ............................................. ... ... .... ... ............26
Required equipment.......................................................................................................................27
Sound levels ......... ... ... .... ... ... ... .... ............................................. ......................................................28
Putting into service......................................................................................................29
Coupling and uncoupling..............................................................................................................29
Coupling the machine....................................................................................................................34
Uncoupling the machine................................................................................................................37
2

Contents

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Instructions for transport............................................................................................ 40
Putting the machine into transport position................................................................................40
Conformity with the road regulations ... ... .... ... .............................................................................41
Instructions for work...................................................................................................42
Putting the machine into work position............. ..........................................................................42
Adjustments in working position..................................................................................................43
Machine use....................................................................................................................................45
Optional equipment.....................................................................................................46
Wear skids ......................................................................................................................................46
Maintenance and storage............................................................................................ 47
Frequency chart .............................................................................................................................47
Lubrication............................................................................................ ..........................................48
Maintenance....................................................................................................................................51
Storage............................................................................................................................................57
Machine recycling..........................................................................................................................58
Trouble shooting guide...............................................................................................59
Appendix ......................................................................................................................60
Calculating the load on an axle.....................................................................................................60
Limited warranty..........................................................................................................66
Contents
3

Front view

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BKE 280-305 SUPER
$Identification of the machine

Rear view

4

Identification of the machine

1. Model identification plate

Please write below the type and serial number of the machine. This information is to be indicated to the dealer for all spare parts orders.
Type: BKE 280 SUPER Serial no.: Type: BKE 305 SUPER
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Serial no.:

2. Optional equipment

Tick box corresponding to the equipment fitted on your machine:
Kit no. 1556444: Wear skids (BKE 280 SUPER).
Kit no. 1556445: Wear skids (BKE 305 SUPER).
Identification of the machine
5
$Safety

1. Description of symbols used in this document

This symbol indicates a potentially hazardous situation that if not avoided, could result in serious bodily injury.
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BKE 280-305 SUPER
This symbol is used to identify special instructions or procedures which, if not followed strictly, could result in machinery damage.
This symbol is used to communicate technical information of particular interest.
6

Safety

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2. Safety instructions

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 fo r 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 le gislation concerning accident prevention, wo rk 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 a nd acce sso ries, as r ecom mended by the manufacturer.
The manufacturer is not held liable for any damage resulting from machine applications other than those specified by the manufacturer. Any use other than the designated operation is at the risk and responsibility of the operator.
The manufacturer is not held liable for any damage or accident re sulting from machine modifications carried out by the operator himself or by a third party without previous written agreement from the manufacturer.
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 traine d to do so.
Should you have any difficulties in understanding certain parts in this manual, please contact your KUHN dealer.
Precautions to be taken before carrying out
any operations on the machine
Before leaving the tractor or before adjusting, maintaining or repairing the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop and apply park brake.
Safety
7
Precautions to take before using the
machine
Do not wear loose clothing which could become caught up in moving parts.
Wear the appropriate protective clothing for the work in hand (gloves, shoes, goggles, helmet, ear defenders, 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.
Shredders
BKE 280-305 SUPER
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 be adapted to ground conditions as well as to roads and paths. Always avoid abrupt change s 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.
8
Safety
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 local regulations for special transportation of oversize equipment.
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 road s, ensure that all legally required lightings and signallings are in place.
Ensure that lightings and signallings are clean and in good working order. Replace any missing or broken equipment.
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Always obey current regulations for driving on roads.
Gross weight and weight per axle
The drawings are not legally binding, their only aim is to illustrate the method to use.
Prior to driving on public roads, check t hat criteria are met t o be in conformity with the count rie's regulations:
- When coupling a tool to the front and rear 3-point lift linkage, the maximum authorized payload must not be exceeded.
- When coupling tools to the front and rear 3-point lift linkages, the maximum load on each axle's tires must not be exceeded.
- The load on the tractor front axle must always represent 2 0 % of the tr actor unladen we ight.
For machines with hoppers or tanks:
- If the total unit weight exceeds the tractor Gross Combined Weight Rating in accordance with the countrie's legislation, empty the hopper to travel on public roads.
- In any case, we recommend to travel on public roads with empty hoppers and tanks .
Safety
9
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BKE 280-305 SUPER
Description of symbols
Description Units Description
T kg Tractor unladen weight
PTAC kg Gross Combined Weight Rating
T1 kg Unladen load on tractor front axle T2 kg Empty load on tractor rear axle
t kg Axle loads (Tractor + machine) t1 kg Load on front axle (Tractor + machine) t2 kg Load on rear axle (Tractor + machine)
t1 max kg Maximum load authorized on the tractor front axle according to the tires t2 max kg Maximum load authorized on the tractor rear axle according to the tires
M1 kg Total weight of front tool or front ballast
Stage 1:
To measure:
- Tractor tare (T).
10
Safety
Stage 2:
- Couple the machine to the tractor.
To measure:
- Load on front axle (t1):
• Tractor + machine (transport position).
To do:
- If the front axle load (t1) is below 20% of the tractor tare (T), add ballast weights (M1) to exceed the minimum load on the front axle.
Example:
• (T) = 7500 kg (16535 lb)
• The front axle load must be of minimum 1500 kg
(3300 lb).(20% of T)
• (t1) = 700 kg (1545 lb).
• 700 kg (1545 lb) < 1500 kg (3300 lb).
• Add ballast weights until the minimum front axle
load is exceeded.
• Repeat checking procedure.
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Stage 3:
To measure:
- Total weight (t):
• Tractor + machine (transport position).
• Ballast weights.
Checking:
- To go to the next stage:
• Check in the tractor's operator's manual that the
value measured is below the tractor's Gross Combined Weight Rating.
To do:
- If t < PTAC go to the next stage.
- If the total unit weight exceeds the tractor Gross Combined Weight Rating in accordance with the countrie's legislation, empty the hopper to travel on public roads.
Example:
• (t) = 10000 kg (24250 lb)
• PTAC = 13000 kg .
• t < PTAC : Go to the next stage.
Safety
11
Stage 4:
To measure:
- Load on rear axle (t2):
• Tractor + machine (transport position).
• Ballast weights.
Checking:
- Check in the tractor's operator's manual that the value measured is below the maximum allowed tractor rear axle load.
- Check that tyre and rim specifiations are in conformity with the requirements of the tractor manufacturer.
Example:
• Load on rear axle (t2) = 8500 kg (18740 lb)
• Check in the tractor's operator's manual that the
value measured is below the maximum allowed tractor rear axle load.
• Check that tyre and rim specifiations are in
conformity with the requirements of the tractor manufacturer.
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BKE 280-305 SUPER
Maximum speed
Always keep to the legal speed limit for driving a tractor­machine assembly on public roads.
12
Safety
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.
Never stand between the tractor and the machine when operating the three point linkage.
Do not stand between the tractor and the machine without ensuring that the parking brake is applied.
Hydraulic circuit
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Caution! The hydraulic circuit is under high pressure. Maximum pressure at work: 200 bar.
Before connecting hoses to the tractor hydraulics, ensure that tractor and machine circuits are not under pressure. Before disconnecting a hose, depressurize the hydraulic circuit.
To avoid making incorrect connectio ns, mark hydraulic couplers and corresponding hoses with colors. WARNING! Functions could be reversed (for example: lift/lower) and cause accidents.
Regularly check the hydraulic hoses. In case of normal wear, replace the hydraulic hoses every 5 years. Damaged or worn hoses must immediately be r eplaced. 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, there could be danger of infection.
Before any adjustments, maintenance or repairs are carried out, lower the machine to the ground, depressurize the hydraulics, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop.
Safety
13
PTO shaft
Use only PTO shafts supplied with the machine or recommended by the manufacturer.
The protective shield of the tractor PTO stub, the PTO shaft guards and the protective covering 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.
Any worn or damaged guards must be replaced immediately. A worn guard or an unpro tecte d 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.
Before attaching or removing a PTO shaft, or before doing any work on the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait for all moving parts have come to a complete stop.
If the primary PTO shaft is equipped with a slip clutch 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 directions of rotation are in line with manufacturer's recommendat ion s.
Before engaging the PTO drive, make sure all people and animals are clear from 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 cover on the PTO stub of the tractor.
Read and follow the instructions in the operator's manual provided with the PTO shaft.
Shredders
BKE 280-305 SUPER
14
Safety
Precautions during manoeuvres
When moving the machine from the transport position to the working position and vice versa, make sure that nobody is within the machine pivoting area.
Remote controlled components
Danger of crushing and shearing can exist when components are operated by hydraulic or pneumatic controls. Keep away from these danger zones.
Safety decals
Safety warning decals are placed in pictorial 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.
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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 tyre. Always take waste to specialized recycling or waste disposal centers.
Precautions for maintenance and repair
work
Before leaving the tractor or before adjusting, maintaining or repairing the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop and apply park brake.
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.
Before any work is done on the electric circuit or before any electric welding is carried out on the attached machine, disconnect the machine from the tractor
Safety
15
electrical circuit. Also disconnect alternator and battery terminals.
Repairs on elements under pressure or tension (springs, pressure accumulators, etc.) must only be carried out by competent persons with regulation equipment.
Wear the appropriate protective clothing for the work in hand (gloves, shoes, goggles, helmet, ear defenders, etc.).
Do not solder, weld or use a blow torch near fluids under pressure or inflammable products.
For your own safety and for correct machine operation, only use original manufacturer parts.
It is strongly recommended to have your machine checked by your Kuhn dealer after each season, especially tools and their attaching hardware.
Projection of stones and foreign objects
Shredders
BKE 280-305 SUPER
For driver safety, always use a tractor equipped with a cab. Keep the ground to be shredded free from foreign objects. Avoid using the shredder on stony or rocky ground. If this is not possible, take extra safety precautions, such as:
- Fit polycarbonate screens inside the tractor cab's side and rear windows, or install narrow mesh guards on their exterior.
- Increase the cutting height to avoid contact with stones or rocks.
Never start the shredder when there are people nearby. Even when the machine is used in accordance with its
purpose, objects may be projected. Stones and other foreign objects projected by the moving parts can travel a considerable distance. Keep all persons and animals away from the danger zone.
The guard plates/covers on the machine help reduce the risks of projection. Therefore, make sure that all shredder protection devices are in place and good condition prior to using the machine.
Regularly check the condition of the guard plates/covers. Immediatly replace any worn, damaged or missing guard plate/cover.
Precautions for machine use
Before using the shredder, inspect shredding tools (knives, rotors) and their attachment hardware in accordance with the instructions given in the present manual. Immediatly replace any worn, damaged or missing guard plate/cover. Before engaging the pto drive, lower the shredder onto the ground. For your safety, only use genuine parts !
16
Safety
Regularly check the condition of the guard plates/covers. Immediatly replace any worn, damaged or missing cover. Before engaging the PTO drive, lower the machine on the ground. Make sure all the guards are in place. Keep all persons and animals away from the danger zone.
Stay a safe distance from the machine when the cutting tools are in movement.
Never work in reverse. After disengaging the PTO drive, cuttings tools can
continue rotating for some time. Stay away from the machine until all moving parts have come to a complete standstill.
If the machine hits an obstacle, disengage the PTO drive, stop the tractor engine, remove the ignition key and wait for all moving parts to come to a complete standstill. Check the entire machine for any damage before resuming work.
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Safety
17
Precautions to take to prevent rotor from
clogging
Foreign bodies in the field (wire,...) can cause clogging. Avoid shredding close to roads, dumps or inert material
dumps. To eliminate cloggings, take the following safety
measures:
- Switch off the engine.
- Lift the machine using the tractor's lift linkage.
- Put on gloves and protective glasses.
- Wait until all rotating parts have come to a complete stop.
- Checked concerned parts for overheating.
- Prop up frame using trestles.
- Remove foreign body with adequate equipment (lever and pliers).
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BKE 280-305 SUPER
18
Safety

3. Location and description of safety decals on the machine

Location of safety decals
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Safety
19
Description of safety decals
Operating instructions (1)
The operators' manual contains all the information necessary for using the machine safely. It is imperative to read and comply with all instructions.
Working on the machine (2)
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BKE 280-305 SUPER
Before leaving the tractor or before adjusting, maintaining or repairing the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop and apply park brake.
Projections (3)
Stones and other debris pro jected by the moving parts can travel a long distance. The guard plates/covers must always be in position and in good condition. Always sta y at a safe distance from the machine.
20
Safety
Rotating cutting tools (4)
Keep away from the machine tools all the time the engine is running, the PTO drive engaged and the moving parts have not come to a complete stop.
Moving elements (5)
Shredders
Do not open or remove guards when the engine is running.
Support wheels (6)
At work, the support wheels must rest on the ground. During manoeuvres, raise the machine to lift the wheels off the ground.
Safety
21
Crushing area (7)
Never operate in an area where there is a crushing risk before all moving parts have come to a complete stop .
Danger of falling (8)
Do not ride on the machine.
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BKE 280-305 SUPER
Anchoring point (9)
Indicates anchoring points for handling the machine.
22
Safety
Hazard: high-pressure fluids (10)
Oil jets under pressure.
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Risk of injuries (11)
Before adjusting, maintaining or repairing the machine, wait until all moving parts have come to a complete stop.
Risk of being crushed (12)
Do not stay between the machine and the tractor.
Safety
23
Risk of entanglement (13)
Stay clear of rotating drive line.
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BKE 280-305 SUPER
24
Safety
$Machine specifications

1. Description and glossary

0
8
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4
9
3
1
7
6
2
8
3
3
Three-point hitch coupler
1 :
Hitch pin
3 :
PTO shaft support
5 :
Side drive shaft
7 :
Semi-pivoting wheels (Optional equipment)
9 :
Side guard
2 :
Parking stand
4 :
Central gearbox
6 :
Roller (Optional equipment)
8 :

Machine specifications

25
BKE 280-305 SUPER

2. Technical specifications

BKE SUPER 280 305
Shredders
Coupling device
Lateral offset 450 mm (1’6’’) Working width 2793 mm (9’2’’) 3034 mm (9’ 11’’) Maximum width 2959 mm (9’8’’) 3186 mm (10’5’’) Required tractor power 49 kW (67 hp) 58 kW (78 hp) Allowable tractor power 92 kW (125 hp) Free wheel Inside central gearbox Power takeoff rotation frequency 540-1000 min Quantity / type of belts N°4 SPBX 1600 Rotor speed 1833-1960 min Knives peripherical speed Cutting diameter 465 mm (1’6’’) Number of knives:
01 56 64
[m/s]
3 point, Category 2
( Hydraulic offset )
-1
-1
44 - 48
06 28 32 08 56 64 09L 28 32
Distance d ( Distance between the centre of the lower link ball joints and the centre of gravity of the rear tool or rear ballast )
- See chapter: «Appendix».
Weight ( including equipment ) 890 kg (1962 lb) 920 kg (2028 lb)
26
Machine specifications
700 mm (2’4’’)

3. Required equipment

Rear support unit
Roller
The roller can be used for work on gras s cover ed area s, set-aside land or pasture land.
or
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Semi-pivoting wheels
The semi-pivoting wheels are recommended for work in wet conditions.
Machine specifications
27
Shredders
BKE 280-305 SUPER

4. Sound levels

Sound levels have been measured in accordance with the measuring methods as defined in:
NF EN ISO 4254-1 «Agricultural machinery - Safety - Part 1: General requirements»
Weighted equivalent continuous acoustic pressure level at the driver's seat (closed cabin) L(A)eq according to
standard UNI EN ISO 11201: 1997
BKE 280 SUPER BKE 305 SUPER
93.5 dB (A) 94.0 dB (A)
Measured weighed volume level Lw(A) according to standard UNI EN ISO 3744: 1997 for machines that exceed a pressure of 85dB(A) in the driver's post
BKE 280 SUPER BKE 305 SUPER
110.0 dB (A) 108.5 dB (A)
Wear ear protectors !
28
Machine specifications
$Putting into service

1. Coupling and uncoupling

Description of coupling elements
- A PTO shaft 1 3/8’’ - 6 splines (1).
- Attachment configuration category 2.
Preparing the tractor
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The tractor must be fitted with lower link stabilizers.
The tractor PTO must rotate at a speed of 540 min-1 or 1000 min
Hitch pin parallelism
Adjust tractor lift rods so that hitch pins are parallel to th e ground.
-1
.
Lateral adjustment of the lower links
Balance the play on either sides of the lift linkage and lock lower link stabilizers.

Putting into service

29
Adjusting the machine
Invert drive pulleys to obtain a different machine PTO
speed.
Inverting the pulleys
- Remove the 3 nuts (2).
- Remove screw (3).
- Remove side gearbox (1).
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BKE 280-305 SUPER
- Loosen screw (3).
- Loosen the 4 screws (4) that hold the central gearbox.
- Loosen counter nut (5).
- Loosen adjustment screws (6) and (7) to slacken belts.
- Remove belts (9).
- Unscrew and remove the 7 screws (10).
- Insert and screw 3 out of the 7 screws in the 3 threaded holes (11)
Insert screws in threaded holes (11) to extract T­clamps.
.
- Remove T-clamp (12).
30
Putting into service
- Remove pulley (A).
- Repeat procedure on pulley (B).
- Invert and reinstall pulleys (A) and (B).
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- Reinstall T-clamp (12) of pulley (A).
- Reinstall the 7 bolts (10).
- Tighten screws (10)
• Torque: 4,2 daNm (31 lbf ft).
- Reinstall T-clamp (12) of pulley (B).
Putting into service
31
- Using a ruler, check that pulleys are in line (8).
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BKE 280-305 SUPER
- Reinstall the 7 bolts (10).
- Tighten screws (10)
• Torque: 4,2 daNm (31 lbf ft).
- Reinstall belts (9).
- Turn the adjustment screws (6) and nuts (7) equally until reaching the optimum tension.
By adjusting (6) and (7) equally, the central transmission shaft is kept parallel to the rotor.
- Tighten screws (3) and (4).
- Tighten counter nut (5).
32
Putting into service
- Using a ruler, check that pulleys are in line (8).
- Repeat procedure until perfect pulley alignment is obtained.
- Reinstall side gearbox (1).
- Reinstall screws (3) and nuts (2).
- Tighten screws (3) and nuts (2)
• Torque:2.5 daN m (18 lbf ft)
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Putting into service
33

2. Coupling the machine

The input machine rotation direction must correspond to the tractor PTO rotation direction.
Check that tractor PTO rotates clockwise.
- Lower the tractor three-point linkage.
- Place the lower links as close as possible under the hitch pins.
- Attach the lower links to the hitch pins (1).
- Secure with lynch pins.
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BKE 280-305 SUPER
- Attach top link (2).
- Lock the upper hitch attachment using lynch pin (3).
- Lift the machine using the tractor's lift linkage.
Hydraulic connection
Connect hydraulic hoses (a) and (b) to the same
hydraulic double acting outlet.
34
Putting into service
Primary PTO shaft
Make sure that the PTO shaft is correctly adjusted, to avoid premature wear and tear.
The tractor PTO stub must rotate at a speed of 540 min-1. Separate the two half PTO shafts and connect them to
the machine's input shaft and to the tractor PTO stub. Check the length of the PTO shaft:
- When the PTO shaft is in its maximum overlap position (retracted), tubes should not butt against the yokes. As a safety measure, a clearance (L) of at least 25 mm (1’’) must be maintained.
- When the PTO shaft is in its maximum extended position, the tube overlap must be more than 250 mm (10’’).
Shredders
If this is not the case:
- Mark length (H) to cut when the transmission is the maximum overlap position.
- Shorten the guard tubes and the transmission tubes by the same length.
- Bevel and clean the tubes.
- Grease the inside of the outer tube.
Never operate the PTO shaft at an angle X exceeding 30°.
Putting into service
35
On machine side, attach PTO shaft guard chain to the gear box guard fastener 1.
To avoid serious accidents, the PTO drive shaft guards must be properly in place and fixed with the chains provided.
Immediately replace any worn or damaged guard.
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BKE 280-305 SUPER
Length of the top link
- Adjust the height of the lift linkage an d the length of the top link until the machine is horizontal or only slightly higher at the front.
- Adjust the length of the top link in order to set the swinging yoke (1) at an angle of X=45° when the machine is in the working position.
36
Putting into service

3. Uncoupling the machine

Park the machine on an even fairly level ground.
With roller:
From the working position:
- Lower and lock parking stand (1).
- Lower the tractor three-point linkage to rest the machine on the ground.
- Uncouple and place PTO shaft in support (2).
- Detach the top link from the machine end (3).
- Release the lower links (4).
- Lower the tractor three-point linkage.
Shredders
The machine is uncoupled.
Position hydraulic hoses on holder (5).
Putting into service
37
With semi-pivoting wheels:
From the working position:
- Pivot wheels (1) in transport position.
- Lock semi-pivoting wheels.
- Secure pin (2) using R-clip.
- Lower and lock parking stand (3).
- Lower the tractor three-point linkage to rest the machine on the ground.
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BKE 280-305 SUPER
- Uncouple and place PTO shaft in support (4).
- Block machine with wheel chocks (5).
- Detach the top link from the machine end (6).
- Release the lower links (7).
- Lower the tractor three-point linkage.
The machine is uncoupled.
Position hydraulic hoses on holder (8).
38
Putting into service
Handling
Shredders
When lifting this equipment, use appropriate lift straps, chains or any other equipment, in perfect working order, complying with safety standards in force for this type of equipment, and with capacities that exceed the total weight of the unit, as listed in this manual:
- BKE 280 SUPER: 890 kg (1962 lb).
- BKE 305 SUPER: 920 kg (2028 lb).
Putting into service
39
$Instructions for transport
Before placing the machine into transport position:
- Wait until the rotating parts have come to a complete stop.
- Check that nobody is within the machine pivoting area.
- If there is someone, make sure the person moves away.

1. Putting the machine into transport position

Shredders
BKE 280-305 SUPER
From the working position:
- Lift the machine with the tractor's three point linkage.
When the following equipment is fitted:
Semi-pivoting wheels.
- Unlock and remove pin (1).
- Pivot semi-pivoting wheel in transport position.
- Insert pin (1).
- Secure with lynch pin.
- Repeat the operation on the second wheel.
- Activate offset cylinder to put the machine in line with the tractor.
The machine is in transport position.
Never engage the tractor PTO drive when the machine is in transport position.
40

Instructions for transport

2. Conformity with the road regulations

Before driving the machine on public roads, ensure that the machine complies with current highway code regulations.
- Check that the light boards are clean and that the lighting equipment functions before transporting the machine on public roads.
Shredders
In offset position, the machine juts out with regards to the tractor.
Follow the local regulations in terms of oversize equipment signalling and be careful when driving on roads.
Instructions for transport
41
$Instructions for work
Before placing the machine in working position:
- Check that nobody is within the machine pivoting area.
- If there is someone, make sure the person moves away.

1. Putting the machine into work position

Shredders
BKE 280-305 SUPER
From the transport position: If the machine is equipped with semi-pivoting wheels. Unlock semi-pivoting wheels:
- Unlock and remove pin (1).
- Fit pin (1) in its holder (2).
- Secure with lynch pin.
- Repeat the operation on the second wheel.
Lower the tractor's lift linkage until the rear support unit
touches the ground.
The machine is in working position.
42

Instructions for work

2. Adjustments in working position

Working height
The cutting tools must never touch the ground.
The working height is set by the position of the rear support unit.
With roller:
Shredders
- Slightly lift the machine from the ground.
- Loosen bolts (1)(2)(3).
- Remove screw ((3)).
- Proceed the same way on the other side
- Position roller in holes corresponding to the required adjustment.
- Reinstall bolts (3).
- Tighten bolts (2) and (3)
• Torque: 13.5 daN m (99 lbf ft)
- Tighten screws (1)
• Torque: 21 daN m (155 lbf ft)
Relationship between the working height and the roller position:
- Hole (a) = 30 mm (1.2’’).
- Hole (b) = 60 mm (2.4’’).
- Hole (c) = 86 mm (3.4’’).
- Hole (d) = 110 mm (4.3’’).
- Hole (e) = 131 mm (5.2’’).
Instructions for work
43
With semi-pivoting wheels:
- Slightly lift the machine from the ground.
- Loosen screw (1).
- Remove screw (2).
- Position wheel arm in hole corresponding to the required setting.
- Reinstall and tighten screw (2):
• Torque: 21 daN m (155 lbf ft).
- Tighten screw (1).
• Torque: 21 daN m (155 lbf ft).
Relations between the working height and the position of the wheels:
- Hole (a) = 28.5 mm (1.1’’).
- Hole (b) = 52 mm (2.0’’).
- Hole (c) = 83 mm (3.3’’).
- Hole (d) = 96 mm (3.8’’).
- Hole (e) = 125 mm (4.9’’).
Shredders
BKE 280-305 SUPER
Height of the tractor's lift linkage
- Lower the 3 point lift of the tractor until the rear support element rests on the ground.
- Adjust lift linkage height to obtain a perfectly horizontal position.
Avoid modifying the linkage height to tilt the machine frontwards.
When tilting the rear part of the machine downwards, there is an increased risk of material being ejected towards the operator.
e
44
Instructions for work

3. Machine use

Before shredding:
- Keep all persons and animals away from the machine danger zone.
This zone is defined by a radius (R) of 10 m (33’) around the working line of the machine.
If using a tractor with a cab that is not sound­proofed or pressurized, the operator must use individual protection equipment:
Ear protections, if the noise exceeds normal exposure limits.
Anti-dust mask if working in very dry conditions or when large quantities of dust are lifted.
Shredders
If the machine starts vibrating oddly during work, immediately stop and check the condition of the rotor, the cutting tools and the balancing ballast. Excessive vibration can cause physical harm to the user.
The top link is in floating position during work to provide good ground adaptation in irregular grounds.
Groundspeed
Adapt the forward speed to the working conditions.
Instructions for work
45

1. Wear skids

Kit no. 1556444 (BKE 280 SUPER) Kit no. 1556445 (BKE 305 SUPER)
Fitting
- Place the skid.
- Insert screws and nuts (1).
- Tighten nuts
• Torque : 5 daN m (37 lbf ft).
- Proceed the same way on the other side.
Shredders
BKE 280-305 SUPER
$Optional equipment
46

Optional equipment

Before carrying out any maintenance or repairs on the machine, switch off the tractor engine, remove ignition key, wait until all moving parts have come to a standstill and apply park brake.

1. Frequency chart

Shredders
$Maintenance and storage
Lubrication Draining:
- Central gearbox
Grease:
- The wheel pins
- Hitch sliding tubes
- Roller removable bottoms
Oil:
- Cardan cross joints
- PTO shaft tubes
Every 4
hours
Every 8
hours
3
Every 20
hours
3
Every 50
hours
3
Every
250
hours or
at the
end of
the
season
3
- The PTO shaft guiding bushes
- Roller removable bottoms
- Pivot points
- Rotor bearings
3
3

Maintenance and storage

47

2. Lubrication

The pictorials show the points to be greased Part
no. 09905400
- Clean grease nipples before greasing.
Lubricate with AGIP GR MU EP/2 multi-purpose lithium grease.
Shredders
BKE 280-305 SUPER
PTO shaft
Primary PTO shaft
- Every 8 hours:
• universal joints (1).
- Every 20 hours:
• transmission tube (2).
- Every 50 hours:
• guide rings (3).
48
Maintenance and storage
Grease
- The wheel pins (1).
Shredders
- Hitch sliding tubes (2).
- Roller removable bottoms (3)
Maintenance and storage
49
Oil change
Central gearbox
Before draining oil, operate the machine for a few minutes so that the oil warms up.
Lubricate with AGIP SAE 90 EP (ISO220) gear oil.
- BKE 280 SUPER: 2.2L(0.58USgal).
- BKE 305 SUPER: 2.3L(0.61USgal).
- Park the machine on an even fairly level ground.
- Remove drain plug (2).
- Use an oil syringe to drain the gearbox.
- Remove filler plug (1).
- Pour the correct oil quantity and quality through the opening of the filler plug (1).
- Clean and reinstall drain plug (2) and its washer. Replace if necessary.
- Reinstall filler plug (1).
- Check central gearbox oil level.
Shredders
BKE 280-305 SUPER
50
Maintenance and storage

3. Maintenance

Checking the oil levels
Place the machine on level ground.
Check central gearbox oil level:
- Place the machine on level ground.
- Remove level plug (1).
Shredders
- The oil level must reach lower part of level plug hole.
- Reinstall level plug (1).
Maintenance and storage
51
Check cutting tools and their fixing
elements
Cutting tools:
Universal knives Type 01 (1)
Hammer knives Type 06 (2)
Shredders
BKE 280-305 SUPER
Pivoting universal knives Type 08 (3)
Articulated hammer knives Type 09L (4)
52
Maintenance and storage
Check cutting tools before each use in order to:
• ensure shredding quality.
• guarantee safety in use.
• avoid risk of damaging the fixing elements.
Replace cutting tools in the following cases:
- Damaged cutting tools:
• Very uneven ground can cause the knives to crack or warp.
- Important wear.
Universal knives
- The length (L1) of the universal knives must exceed 90 mm (3.54’’).
- Ovalisation of the mounting hole L2 must not exceed 18 mm (0.71’’).
Shredders
Hammer knives
- The cutting tool length L1 must exceed 90 mm (3.54’’).
- Ovalisation of the mounting hole L2 must not exceed 18 mm (0.71’’).
Fixing elements
- Check the condition of the fixing elements regularly and also the torque of the knife-fixing bolt.
• Torque: 10.5 daN m (77.4 lbf ft).
- Check the fixing elements:
• After hitting an obstacle.
• When knives are replaced.
• At the start of each season.
- The fixing bolts should be changed in the following cases:
• When there is visible distortion.
• When the thread is damaged or worn.
• When a groove (H) of over 2 mm (0.08’’) has
developed.
Maintenance and storage
53
Replacing knives and pallet knives
Immediately replace worn or damaged parts with genuine KUHN parts.
Replace self-locking nuts after each removal operation:
Torque: 10.5 daN m (77.4 lbf ft).
From the transport position:
- Uncouple PTO shaft on machine side.
Partial replacement:
- Lift the machine using the tractor's lift linkage.
- Prop up frame using trestles.
- Replace damaged or worn knives.
- Replace the knives that are diametrically opposite to maintain the existing balance.
- Check that there is still 1 to 2 mm (0.04’’ - 0.08’’) play between the pair of knives and the supports.
Shredders
BKE 280-305 SUPER
In parking position:
- Slightly lift machine off the ground using an adapted lifting device.
- Tip the machine forward.
- Lower the lifting device until the attachment yokes touch the ground.
Keep the slings under tension.
- Weigh cutting tools.
- Pair up equally weighted cutting tools so that they can be placed diametrically opposite.
Put the lighter pairs in the center of the rotor and the heavier pairs to the edges.
54
Maintenance and storage
• Fit the knives according to the direction of travel of the machine.
• Check that there is still 1 to 2 mm (0.04’’ - 0.08’’) play between the pair of knives and the supports.
- Checking the balance:
• Couple PTO shaft on machine side.
• Slightly lift the machine from the ground.
• Start the PTO drive and increase speed progressively up to a steady speed of 540 min
• When mounted correctly, the rotor must rotate without causing the machine to vibrate.
Belt tension
Check belt tension: After the first 3 hours of use. Every 8 hours.
Shredders
-1
.
Checking the tension:
Through the belt guard slot:
- Apply a force of 35 N (1.6 lbf) on the belt: the belt should not deflect more than H = 7 mm (0.3’’).
Maintenance and storage
55
Adjusting the tension:
- Remove the 3 nuts (2).
- Remove screw ((3)).
- Remove side gearbox (1).
Replace belts, if proper tension can no longer be obtained.
Shredders
BKE 280-305 SUPER
Always replace the complete belt set if one of them is damaged.
- Loosen screw (3).
- Loosen the 4 screws (4) that hold the central gearbox.
- Loosen counter nut (5).
- Turn the adjustment screws (6) and nuts (7) equally until reaching the optimum tension.
By adjusting (3) and (4) equally, the central transmission shaft is kept parallel to the rotor.
- Tighten screws (3) and (4).
- Tighten counter nut (5).
- Using a ruler, check that pulleys are in line (8).
- Repeat procedure until perfect pulley alignment is obtained.
56
Maintenance and storage
- Reinstall side gearbox 1.
- Reinstall bolts 2:
• Torque: 2,5 daN m (18 lbf ft).
- Reinstall the 2 nuts (3):
• Torque: 2,5 daN m (18 lbf ft).
Shredders

4. Storage

At the end of each season
- Clean the machine thoroughly:
• The rotor.
• The inner panels.
• Rotor housings.
• Roller housings.
- Touch up any areas of damaged paintwork.
- Lubricate all mechanical components correctly to protect them from corrosion.
- Put the machine under cover in a dry place.
- Check the condition of the fixing elements regularly and also the torque of the knife-fixing bolt. Replace if necessary.
- Check that the original safety decals are in their original location, undamaged and legible.
- Drain bevel gearbox and fill with new oil.
- Slacken V-belts and check their condition.
Maintenance and storage
57
At the start of each season
- Re-read the operators' manual.
- Check that the machine is greased.
- Check all the knives and fixings, and replace if necessary.
- Check that all nuts and bolts are sufficiently tightened.
- Retension V-belts.
- Check belt guard condition and if it is firmly secured in place.
- Make sure that all protection devices are in place and in good condition.

5. Machine recycling

In case of recycling, the machine will have to be recycled in
conformity with the legislation in force in the country concerned.
Prior to proceeding with the recycling, remove all plastic or
rubber parts, electric or electronic equipment.
Collect possible residual oil and give it to an appropriate
processing center.
Parts only made up of plastic, aluminium, steel can be recycled
if they are collected by an appropriate center.
Shredders
BKE 280-305 SUPER
58
Maintenance and storage
$TROUBLE SHOOTING GUIDE

Problem Cause Remedy

Excessive vibrations.
Poor cutting quality due to a drop in the rotor speed.
Belt overheating.
A) Breakage or excessive wear of knives or hammer knives.
B) Knife or hammer knife jamming on the pivot point.
C) Incorrect rotor balance. A) Insufficient belt tension.
B) Excessive belt wear. A) incorrect belt tension.
B) The angle gearbox axle is no longer in line with the rotor axle.
Replace worn or damaged parts. Clean and grease pivot points. Check weight of knives and
hammer knives. Adjust tension.
Replace belts. Check tension. Check alignment.
Shredders
Angle gearbox overheating.
Fast knife or hammer knife wear. Drive shaft oil loss on the belt
side. Distortion of roller or wheel
supports.
Distortion of the front pivoting safety flaps.
Rotor jamming during work.
A) Lack of oil. B) No oil.
A) Working position too low, interference with the ground.
A) Seal wear or breakage. Replace seal. A) The roller or wheel supports
have been subject to lateral forces.
A) The machine has been lowered onto the residues to shred from the raised position (transport position).
A) Clogging due to foreign bodies (example: wire, plastic material).
Top up until proper oil level is reached.
Replace gearbox. Adjust working height.
Raise machine off the ground when inverting the direction of travel or steering the wheels.
The machine must be in working position before coming into contact with the residues to shred.
Put on gloves and remove foreign bodies with adequate tools.

Trouble shooting guide

59
$Appendix

1. Calculating the load on an axle

When coupling a tool to the front and rear 3-point lift linkage, the maximum authorized payload must not be exceeded.
The load on the tractor front axle must always represent 20 % of the tractor unladen weight. Prior to use, check that these conditions ar e satisfied by making this calculation or by weighing the
tractor-machine unit
Define the total weight, axle loads, tyre
capacity and minimum additional mass:
Shredders
BKE 280-305 SUPER
The following values are required for the calculation:
Description Units Description
T kg Tractor unladen weight T1 kg Unladen load on tractor front axle T2 kg Empty load on tractor rear axle
t kg Axle loads (Tractor + machine) t1 kg Load on front axle (Tractor + machine) t2 kg Load on rear axle (Tractor + machine)
M1 kg Total weight of front tool or front ballast M2 kg Total weight of rear tool or rear ballast
am b m Distance between the tractor axles cm
d m
Distance between the tools' centre of gravity or the front ballast and the front axle centre
Distance between the rear axle center and the center of the lower link ball joints
Distance between the centre of the lower link ball joints and the centre of gravity of the rear tool or rear ballast
Obtaine
d by
60
Refer to the tractor operators' manual Refer to the machine price-list or operators' manual Dimensions Measure on scale

Appendix

Rear tool or front-rear combination:
Shredders
1) Calculation of the minimum front ballast weight M1
minimum
M2 x (c+d) - T1 x b + 0.2 x T x b
M1
minimum
=
a+b
Write the minimal additional weight in the chart.
Front tool:
2) Calculation of the minimum rear ballast weight M2
minimum
M1 x a - T2 x b + 0.45 x T x b
M2
minimum
=
b+c+d
Write the minimal additional weight in the chart.
3) Calculation of the actual load on the front axle T1
If the front tool (M1) is lighter than the minimum load required at the front (minimum), increase tool weight until the required minimum front load is reached
real
M1 x (a+b) + T1 x b - M2 x (c+d)
T1
=
real
b
Indicate front axle calculated load value and the one indicated in the tractor operators' manual.
4) Calculation of the total weight M
If the rear tool (M2) is lighter than the minimum load required at the rear(minimum), increase tool weight until the required minimum rear load is reached
real
M
= M1 + T + M2
real
Indicate calculated total load value and the one autho rized as indicated in the tractor operator's manual.
5) Calculation of the actual rear axle load T2 T2
= M
real
real
real
- T1
real
Indicate rear axle calculated load value and the one indicated in the tractor operator's manual.
6) Tyre carrying capacity
Indicate double (2 tyres) the authorized load value (see tyre manufacturer indications).
Appendix
61
Table:
Shredders
BKE 280-305 SUPER
Actual value obtained by calculation
Minimum front/rear ballasting
Total weight kg ≤ kg
Load on front axle kg ≤ kg ≤ kg
Load on rear axle kg ≤ kg ≤ kg
The minimum ballasting must be made by fitting a tool or an additional mass to the tractor.
The values obtained must be below or equal the authorized values.
kg
Value authorized according to operator's manual
Double value of the authorized capacity per tyre (2 tyres)
62
Appendix
Determining the machine weight (M2) and the position of its centre of gravity (d)
If the data required to calculate the total weight, axle loads and minimum ballasting are not supplied, use the following method.
Tractor only:
Shredders
- T1: Load on front axle.
•Tractor only.
- T2: Load on rear axle.
•Tractor only.
Appendix
63
- T: Axle loads.
• Tractor only.
Shredders
BKE 280-305 SUPER
64
Appendix
Shredders
Rear tool or front-rear combination:
If the total unit weight exceeds the tractor Gross Combined We ight Rating in accordance wit h the countrie's legislation, empty the hopper to travel on public roads.
In any case, we recommend to travel on public roads with empty hoppers and tanks.
- Measure dimension (b).
- Measure dimension (c).
- t1: Load on front axle.
• Tractor + machine.
• Hopper empty.
- t: Axle loads.
• Tractor + machine.
• Hopper empty.
Calculating the rear tool weight (M2):
M2 = T - t
Calculating the distance (d):
d = (( b x ( T1 - t1) ) / M2 ) - c
Appendix
65
$Limited warranty
Shredders
BKE 280-305 SUPER
66

Limited warranty

Shredders
Limited warranty
67
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