Krone AFL 283 CV is a front disc mower designed for agricultural use. It features a cutting width of 2.83 meters and is equipped with a conditioner to improve crop flow. The cutting height can be adjusted to suit different crop conditions, and the ground pressure can also be adjusted to ensure a clean cut. The mower is designed for easy attachment and removal from the tractor, and it can be transported in a vertical position for space-saving storage.
Krone AFL 283 CV is a front disc mower designed for agricultural use. It features a cutting width of 2.83 meters and is equipped with a conditioner to improve crop flow. The cutting height can be adjusted to suit different crop conditions, and the ground pressure can also be adjusted to ensure a clean cut. The mower is designed for easy attachment and removal from the tractor, and it can be transported in a vertical position for space-saving storage.
Front disc mower
AFL 283 CV
(from machine no. 486 575)
Nr. 410-2 GB
Operating Instructions
EC Declaration of Conformity
according to Directive 89/392/EEC
Heinrich-Krone-Str. 10, D-48480 Spelle
Dear customer,
Here are the operating instructions for the KRONE product you
have purchased.
These operating instructions contain important information for the
proper use and safe operation of the machine.
If these operating instructions have for any reason become
completely or partially redundant, you can obtain replacement
operating instructions for your machine with the specification
numbers listed overleaf.
We
declare under our sole responsibility, that the product
to which this declaration relates corresponds to the relevant basic safety and health requirements of
the Directive 89/392 (EEC) and to the requirements of the other relevant Directives:
Krone-Disc Mower
Models:
AFL 283 CV
Maschinenfabrik Bernard Krone GmbH
Spelle, 01.09.1999
(Siegfried Wickert, Managing Director)
(ppa. Dr. Josef Horstmann, Manager of the engineering and design dep.)
(Ralf Pöppelmeyer, Director of Quality Control)
1
I. Foreword
Dear customer,
We thank you for the trust you have placed in us by
purchasing this machine.
When you received this machine, the dealer should have
given you instructions for the operation, maintenance and
adjustment of the machine.
However, this brief introduction to the machine can not
replace a detailed acquaintance with the different tasks and
functions of the machine and the proper way of treating it.
These operating instructions are designed so that you are
extensively informed of the activities required in each area,
from commissioning and operation to the maintenance and
care of the machine. The structure of the individual chapters
in the text and illustrations corresponds to the sequence of
work procedures when you use the machine.
Read these operating instructions carefully before you use
the machine, and pay special attention to the safety
instructions.
Important: To avoid accidents and to ensure maximum
results, no alterations may be made to the
machine without the manufacturer´s
permission. Similarly, the machine must
only be used under the conditions
prescribed by Krone.
All information, illustrations and technical information in the
operating instructions represent the latest status at the date
of publication. The company reserves the right to make
constructional alterations at any time and without prior
notice or obligation.
Ordering Replacement Parts
When ordering replacement parts, the machine
type, machine number and year of manufacture
must be given. These details can be found on the
identification label on the machine.
We recommend that these details be entered in the
above boxes so that they are readily available.
And please remember that imitations and copies of
parts, especially wearing parts, do not keep what
they appear to promise. Material quality is difficult
to test visually, therefore special care is required
when purchasing cheap offers and imitation parts!
The simplest remedy:
Purchase only original KRONE parts!
Mach. No.
Type
Year
You will find this symbol at various points in
the operating instructions. It gives special
handling instructions which should be
particularly observed in the use of the
machine.
This symbol is designed to draw attention to
the safety instructions contained in the
operating instructions. These instructions
must be observed to prevent accidents.
AFL-0-03
0
Maschinenfabriken Bernard Krone GmbH
Landmaschinen, Nutzfahrzeuge
Heinrich-Krone-Straße 10, D 48480 Spelle
Jahr
Année
Masch. Nr
No. de série
Type Made in
W.-Germany
2
Contens
Contents
I. Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
II. Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
III. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 Introduction
1.1 Position of the warning signs, with safety-technical information . . . . . . . . . . . . . . . . . . . . .6
1.2 Position of the general information labels on the machine . . . . . . . . . . . . . . . . . . . . . . . . .8
1.3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2 Preparing for operation
2.1 Preparations on the tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.2 Preparations on front disc mower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.3 Attaching the front disc mower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4 Working position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
2.5 Transport position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
2.6 Removing the front disc mower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
2.7 Safety instructions before mower operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3 Adjusting the disc mower
3.1 Adjusting the cutting height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3.2 Adjusting the ground pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.3 Adjusting the conditioner speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.4 Adjusting the conditioner cover plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.5 Adjusting the swath width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
4 Maintenance
4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4.2 Gearboxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4.3 Oil level check and oil change on the cutter bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4.4 Changing the blades on the cutting discs with bolt on in blades . . . . . . . . . . . . . . . . . . . .24
4.5 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
5 Wide swath hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6 Winter storage
Winter storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
7 Start-up after winter storage
7.1 Start-up after winter storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
3
5. The operator´s clothing should be tight fitting. Avoid
wearing loose fitting clothes.
6. Keep the machine clean to prevent the danger of fire!
7. Before starting the machine and moving off, check the
danger area around the tractor (children!). Good visibility
is absolutely essential!
8. Carrying passengers on the implement during work or
transport is not permitted.
9. Make sure that the implement is correctly coupled, and
that it is only fixed and secured with the prescribed
fittings!
10.Make sure that the supporting devices, jacks etc. are
in the correct position during assembly and removal!
11.Special care is required when equipment is being
coupled to the tractor or detached from the tractor!
12.Ballast weights must always be attached in the
prescribed way at the designed attachment points!
13.Adhere to the permitted axle loads, total weights and
transport dimensions!
14.Check and fit transport equipment – e.g. lighting,
warning signs and, if required, protective equipment!
15.Operating equipment for remote controls (ropes, chains,
rods etc.) must be laid out in such a way that, whatever
the working or transport position, it can not inadvertently
cause any movements.
16.Prepare equipment for road transport as prescribed by
the manufacturer, and lock the equipment in accordance
with the manufacturer's regulations!
17.Never leave the driver´s position when the tractor is in
motion!
18.The speed of travel must always be suited to the
environmental conditions! Avoid any sudden turns
when travelling uphill, downhill or across a slope!
19.The handling, steering and braking of the tractor is
affected by integrated or attached equipment and
ballast weights. Make sure that you allow for more
flexibility in steering and braking!
20.When turning, remember to take account of the wide
load and/or the greater weight of the equipment!
21.Only switch on equipment when all protective
devices are fitted and in protection position!
2. Safety and Accident Prevention
Regulations
1. Take note of both the regulations in these operating
instructions and also the general safety and accident
prevention regulations!
2. The attached warning and information signs give
important advice for safe operation. Observing them
will enhance your safety!
3. When you use public roads, make sure you observe
the relevant traffic regulations!
4. Make sure you know all equipment and controls before
you begin working with the machine. When you are
operating the machine, it´s too late!
Basic rule:
Before any public roads are used and
before the machine is started, check the
disc mower and the tractor for road-
worthiness and operational safety.
1. Operation in Accordance with
Specifications
The disc mower is designed solely for normal agricultural
use (operation in accordance with specifications).
Any use of the machine for other purposes is deemed to
be not in accordance with specifications. The manufacturer
bears no responsibility for any resulting damage; such use
is entirely at the operator´s risk.
Use in accordance with specifications also includes
adherence to the operating, maintenance and service
instructions prescribed by the manufacturer.
The disc mower must only be used, maintained and
repaired by personnel who are acquainted with the machine
and have been informed of the danger involved.
The applicable accident prevention regulations and all
other generally recognized safety, health and road traffic
regulations must be adhered to.
Any unauthorized alterations to the machine render any
liability for damage undertaken by the manufacturer null
and void.
III. General
4
,
22.Persons are not allowed to enter the working area!
23.Keep clear of the area of rotation and swing of the
equipment!
24.Hydraulic controls must only be operated if no persons
are in the swing area!
25.Power operated parts (e.g. by hydraulics) contain
danger points which can cause injury by bruising and
grazing!
26.Before leaving the tractor, rest the mower on the
ground, switch off the engine and remove the ignition
key!
27.Make sure that no personnel go between the tractor
and the implement unless the tractor is protected from
rolling by the parking brake and/or wheel blocks!
3. Attached Equipment
1. Special care is required when the implement is being
connected to the tractor or disconnected from it!
2. The implement must only be coupled to the
appropriate fittings (e.g. the 3-point connection), and
they must be so secured (transport, operation) that
unintentional lifting or lowering of the implement is
not possible.
3. When connecting the point linkage, it is absolutely
essential that the hitching categories of the tractor
and attachment (e.g. power take-off shaft speed,
hydraulics) are matched!
4. When operating the external controls for the three-
point linkage, make sure that nobody goes between
the tractor and the implement (danger of injury)!
4. Power Take-Off shaft Operation
1. Only the P.T.O. shafts prescribed by the manufacturer
may be used!
2. Both male and female guard tubes and cones of all
P.T.O. shafts must be fitted and in good condition!
3. Observe the tube overlap prescribed for P.T.O. shafts
in transport and operating position!
4. Before installing or removing the P.T.O. shafts, make
sure to turn off the power take-off shaft and the engine,
and remove the ignition key!
5.When using P.T.O. shafts with overload or free wheel
clutches that are not covered by the guards on the
tractor, the overload or free wheel clutches must be
fixed on the implement side!
6. Always ensure correct assembly and guarding of the
P.T.O. shaft!
7. Protect the P.T.O. shaft guard from rotating with the
shaft by fitting the chains!
8. Before switching on the power take-off shaft, make
sure that the p.t.o. speed of the tractor matches the
permitted speed of the implement!
9. Before switching on the power take-off shaft, make
sure that nobody is in the danger area of the implement!
10.Never switch on the power take off shaft when the
tractor engine is turned off!
11.Any work on the power take-off shaft may only be
carried out when nobody is in the area of the rotating
power take-off shaft or P.T.O. shaft.
12.The power take-off shaft should always be turned off
when the angle is too great or the p.t.o. shaft is not
required!
13.Danger! Working elements continue to rotate after the
power take-off shaft is turned off! Do not approach the
machine during this time! Work may only be carried out
on the machine when the machine is fully stationary
and the rotating parts have been secured.
14.Cleaning, lubrication or adjustment of the P.T.O. shaft
or any equipment driven by the power take-off shaft
may only be carried out when the p.t.o. shaft and the
engine are turned off and the ignition key has been
removed! Rotating parts must be secured.
15.Place the detached P.T.O. shaft on the support bracket
provided!
16.After removing the P.T.O. shaft, place the protective
cover on the stub of the power take-off shaft!
17.Any damage must be repaired immediately before
continning work with the machine.
5
4. When there are functional hydraulic connections
between the machine and the implement, all
hydraulic connections must be marked to prevent
operating errors. If the connections are switched,
the functions are reversed (e.g. lifting and
lowering) – this can cause accidents!
5. Hydraulic hoses must be checked regularly, and
they must be replaced if they are damaged or
worn. Replacement hoses must conform to the
technical requirements of the implement
manufacturer!
6. When tracing leaks, suitable aids should be used
to prevent injury!
7. Fluid leaking under high pressure (hydraulic oil)
can penetrate the skin and cause serious injury!
When injury occurs, consult a doctor immediately!
Danger of infection!
8. Before carrying out any work on the hydraulic
system, lower the machine to the ground,
depressurize the system and turn off the tractor
engine!
5. Hydraulic System
1. The hydraulic system is pressurized!
2. When connecting hydraulic cylinders and motors,
make sure that the hydraulic hoses are correctly
coupled!
3. When connecting hydraulic hoses to the tractor´s
hydraulic system, make sure that all pressure has
been released from the hydraulics of both the
tractor and the implement!
7. Maintenance
1. Repair, maintenance and cleaning work and the
correction of malfunctions must always be carried out
only when the drive is turned off and the tractor
engine is at a standstill! Remove the ignition key!
Apply the parking brake.
2. Nuts and bolts must be checked regularly for tightness,
and tightened if necessary!
3. When carrying out maintenance work on the machine
in a lifted position, it must always be supported on
suitable jacks.
4. When replacing fittings that contain cutting blades,
always use suitable tools and gloves!
5. Oil, grease and filters must be correctly disposed
of!
6. The power supply must always be disconnected
before any work is carried out on the electrical system!
7. If protective devices are subject to wear, they must be
checked regularly and replaced in good time!
8. When electric welding is carried out on the tractor and
any fitted attachments, the cables must be dis-
connected from the alternator and battery!
9. Replacement parts must conform at least to the
technical requirements defined by the manufacturer!
The best guarantee is to use only original KRONE
parts!
10.Where gases are stored, only refill with nitrogen.
Danger of explosion!
6
1. Introduction
The KRONE Disc Mower is equipped with all necessary safety devices (protective devices). Not all dangerous
areas on this machine can be made completely safe considering that it is also necessary to keep the machine
functional. There are corresponding danger notices on the machine indicating these remaining dangers. We have
given these danger notices in the form of warning signs. You will find important notices on the positioning of these
danger signs and their meaning/denotation below!
Familiarise yourself with the warning signs. The text beside them and their location on the
machine indicates the machine's particularly dangerous areas.
1.1 Position of the warning signs, with safety-technical information
6
45 6
45
22
31
1
7
Order No. 939 572-0 (2x)
Move guards into position.
4
5
6
Do not touch any moving
parts of the machine.
Wait unti they are
completely stationary.
Order No. 939 410-2 (2x)
Keep at a safe
distance when the
engine is running.
Order No. 942 197-1 (2x)
2
Never put your hand into the
danger area as long as parts
may be moving.
Order No. 942 196-1 (2x)
1
Do not exceed power
take-off shaft speed!
Order No. 939 101-4 (1x)
3
Read and take note of
the operating instructions.
Order No. 939 471-1 (1x)
939 101-4
MAX.
1000/
min
MAX.
200
bar
8
942 089-2 (1x)
9
3
939 188-3 (1x)
8
939 161-2 (1x)
6
1
7
2
939 106-3 (1x)10
939 181-1 (1x)
5
1.2 Position of the general information labels on the machine
939 188-3
Ölniveau bis Bohrung
Nivel del aceite hasta el orificio
Niveau d'huile jusquà l'orifice
Oil level up to bore hole
Livello dell'olio fino al foro
939 548-0 (1x)
bei Messer-
schraubverschluß
4942 009-2 (1x)
bei Messer-
schnellverschluß
4
942 089-2
939 568-2 (1x)
939 428-2 (1x)
942 320-0 (3x)
939 567-1 (1x)
139 888-0 139 889-0
112
939 567-1
139-888 139-889
QS
Kontrolle frei
Datum Unterschrift:
939 428-2
540 O.K. 540
1000 O.K. 1000
540 1000
540 730
Lebensgefahr!
Danger de mort!
Livsfara!
Danger to life!
Levensgevaarlijk!
`Peligro de muerte!
939 106-3
5
14
8
10 6
3
2
922
9
1.3 Technical data
Lubricant quantities and designations for the gearboxes
Refined oil Biological lubricant
Quantity [litres] Brand name Brand name
Main gearbox 0.5 SAE 90
Angle gearbox 0,5 SAE 90
Gearbox for 6 l SAE 90
mower drive
On request
When using biological oil, the oil change intervals must be strictly adhered to because of the
risk of ageing of the oil.
Type
Working width [mm] 2800
Transport width [mm] 2950
No. of mower discs 5
No. of mower drums 2
Conditioning system V-
Conditioner speed [1/rpm] 600/900
Performance [appr.ha/h] 3,5
PTO shaft speed [rpm] 1000
Net weight [appr. kg] 900
Power requirement [kW/hp] 52/70
Required hydraulic connection 1 x SA
• Main drive PTO shaft: Free-running end on machine side
• Suspension: By means of the Weiste triangle on the front hydraulic system
AFL 283 CV
10
Preparing for operation
2. Preparing for operation
Special safety instructions
• While working with the mower, all personnel must keep a sufficient safety distance
from the cutting blades.
• Check protective cloth covers regularly. Replace worn or damaged covers!
• Put protective features on the mower, e.g. cloth covers and guards, into position
before starting work.
• Take special care when fitting attachments to the tractor or removing them.
• It is essential that accident prevention regulations are observed.
• To avoid injury when tracing leakages use suitable safety precavtions.
• Fluid escaping under high pressure (hydraulic oil) can penetrate the skin and cause
serious injury!
• If injuries occur, consult a doctor immediately! Danger of infection.
• Release the pressure before disconnecting hoses and before any work is carried out
on the hydraulic system!
• Check hydraulic hoses regularly, and replace any damaged or worn hoses.
Replacement hoses must conform to the mower manufacturer's technical
specifications.
2.1 Preparations on the tractor
In order to operate the front disc mower on your
tractor, the front lifting hydraulics of the tractor must be
adapted to the requirements of the front disc mower.
You need a hydraulic coupling which is connected with
the hydraulic circuit of the front lifting unit. If your
tractor is not equipped with such a hydraulic connector,
refer to your KRONE dealer. He will assist you in fitting
the additional hydraulic connector.
The following illustration shows a configuration
example: Disconnect the hydraulic line (1).
Screw the T-junction (2) onto the front hydraulic lifting
cylinder. Connect the hydraulic coupling with the
T-junction using hydraulic line.
Components of the additional hydraulic coupling:
1 Hydraulic line
2 T-junction Order No.: 921 079
3 Cutting ring Order No.: 921 046
4 Union nut Order No.: 921 206
5 Hydraulic pipe 12x1.5
6 Hydraulic coupling Order No.: 921 130
AFL 245-0-00
1
AFL 245-0-01
5
3
12
446
53
11
Preparing for operation
Make sure that the PTO shaft locking
devices have clicked into place.
The front hydraulic system of the MB-Trac is connected
with the tractor hydraulic system by a hydraulic
coupling. In order to operate the hydraulics of the front
disc mower, you need the T-junction (1) shown in the
adjacent illustration with a hydraulic coupling.
2.3 Attaching the front disc mower
Fit Weiste triangle (1) to the front hydraulic system.
Adjust the top link arm so that the triangle leans
forward slightly.
The conditioner plate (1) must be in the lower position.
2.2 Preparations on front disc mower
Fit the PTO shaft (4) with a long guard (5) onto the
machine (6). Secure the protecting tube (3) with
retaining chain (2) to prevent it turning with the shaft.
Attach securing chain to locating hole (1).
Fitting PTO shaft
1 Distributor piece Order No. 146 189
NOTE: If there is a double-acting front hydraulic
system, shut off the pressure side!
1
AFL 245-0-01
6
AFL-0-011
5
4
32
1
6
AFL 245-0-007
1
AFL-0-001
1
12
Preparing for operation
• Carefully lift the front hydraulics until the front
disc mower is securely suspended in the Weiste
triangle (2).
• The release lever (1) must be locked in the forward
position (see direction of arrow).
Secure the coupling with a spring clip (1). The first time
the mower is attached, the lock (2) must be set to a
height that allows the Weiste triangle to lock in
perfectly.
Carefully drive the Weiste triangle (1) up to the front
disc mower. Make sure that the retaining chains (3)
and the hydraulic hose (4) are not in caught in the front
disc mower coupling (2).
Connect the hydraulic hose (3) to the quick release
coupling (1). Open shut-off tap (2).
AFL-0-00
2
4
3
2
1
AFL-0-00
3
2
1
AFL 245-1-00
5
12
AFL-0-00
7
2
3
1
13
Preparing for operation
• Switch off tractor engine. Remove
ignition key. Secure the tractor from
rolling away. Danger of injury!
• Make sure the PTO shaft lock has
clicked in. Use retaining chain to
secure the protecting tube against
rotating with the shaft.
PTO shaft
Retaining chains
• Raise front hydraulics
• Fasten retaining chains (3) and (4) to bolts (2) on
the left-hand and right-hand sides of the tractor
• Secure with hinged clip (1)
Adjusting retaining chains
To ensure that the front disc mower functions properly
in the working position, the length of the retaining
chains must be adjusted to suit the tractor.
• Lower hydraulics to check.
• The distance between the protective cover and the
centre point of the front lifting cylinder bolt should be
a = approx. 600 mm.
Adapting the PTO shaft
• Hold the PTO shaft halves next to each other in the
transport position
• Check the overlap of the lemon tubes
• Shorten the lemon and protective tubes so that they
can move freely in any operating position
• Observe the operating instructions from the PTO
shaft manufacturer
NOTE: In order to avoid damage to the tractor and
the machine, adapt the length of the PTO shaft.
Connect the PTO shaft (3). Secure protecting tube (2)
against rotating with shaft using chain (1).
AFL-0-012
AFL-0-00
4
1
2
3
AFL-0-00
5
1
2
3
4
AFL-0-02
8
a
14
Preparing for operation
Raise the jack stand (1). Secure with clamping
screw (2).
To give the correct height (a) approx. 600 mm connect
both retaining chains. Adjusting the height with special
joining links (3). Final adjustment should be obtained
by using turnbuckle (1).
Put conditioner flap (1) into the working position with
the lever (2) (see direction of arrow).
AFL-0-03
1
1
2
3
AFL-0-00
6
2
1
AFL-0-00
8
1
2
15
Preparing for operation
Connect the side protective cloth covers to the front
cloth cover using snap buckles (3).
2.4 Working position
Bring side guard (2) and front guard (1)
into position.
2.5 Transport position
Switch off PTO shaft before travelling on
public roads. Raise mower unit. Caution
the mower unit may still be running.
NOTE: Open the locking devices (1) before folding
up the side guards (2).
Make sure that the retainer (4) on the
side protective cloth covers (2) clicks
securely into the mounting (3).
Swing the side guards (2) up into the mounting (3).
Maximum PTO shaft speed 1000 rpm.
A version with a drive speed of 540 rpm
can be ordered as an extra. Make sure
you take the maximum front PTO shaft
speed of the tractor into consideration
here.
• Lower mower unit
• Switch on PTO shaft
AFL-0-01
3
2
1
3
AFL-0-00
9
342
1
2
16
Preparing for operation
HINWEIS
Switch off PTO shaft and tractor engine.
Secure the tractor against rolling away.
2.6 Removing the front disc mower
Put the front disc mower down on level and solid
ground.
• Loosen clamping screw (2). Lower jack stand (3).
Tighten clamping screw
• Fold down conditioner plate with lever (1)
HINWEIS
Release pressure from the hydraulic system.
• Close the valve (1) on the hydraulic hose (3)
Depressurize system
• Disconnect the hydraulic hose from the tractor quick
release coupling (2)
• Remove retaining chains (4) from the tractor. Hang
on mounting (5)
• Unhook chain (1) for protecting tube (2)
• Pull PTO shaft (3) out of the tractor PTO shaft and
put down
Remove the spring pin (1) on the Weiste triangle
locking device.
NOTE
NOTE
AFL-0-01
5
21
3
AFL-0-01
6
5
432
1
AFL-0-01
7
1
2
3
AFL 245-1-00
5
12
17
Preparing for operation
Pull lever (1) backwards. Lower the front hydraulics
until the triangle is free. Drive backwards carefully.
NOTE: Place the chains (3) and hydraulic hose
(2) in such a way so that the Weiste triangle can
removed freely.
• Only carry out work on the mower unit when the PTO shaft has been switched off,
the tractor engine turned off and the ignition key removed! Secure the tractor against
unintentional operation and rolling away!
• Check protective devices for damage before each operation. Replace damaged
protective devices immediately. Danger of injury!
• Support the raised cutterbar! Never stand under suspended loads!
• Safe operation is only ensured if the mower blades are fitted according to
regulations!
• Check the mower unit for damaged, missing or worn cutter blades. If necessary
replace cutter blades! The same applies for fixing materials!
• Only replace missing and damaged mower blades as a complete set to prevent
imbalances!
• Never fit unevenly worn mower blades onto a drum / disc!
• Every time the mower blades are changed, check fixing components and replace if
necessary!
2.7 Safety instructions before mower operation
Heavily damaged linings (see illustration)
must be replaced immediately to prevent
any risk of damage to the cutterbar.
MH-0-001
AFL-0-01
9
1
3 2
18
Adjusting the disc mower
3 Adjusting the disc mower
Special safety instructions
• Only carry out repair, maintenance and cleaning work when the machine is standing
still. Turn off tractor engine. Remove the ignition key. Secure the tractor against
rolling away.
• Replace all protective devices properly after completing repair and maintenance
work. Avoid oil and grease coming into contact with skin. If injuries are caused by
escaping oil, consult a doctor immediately.
• The mower blades can continue to rotate after the drive has been switched off. Do
not approach the machine until the working parts have come to a standstill!
3.1 Adjusting the cutting height
The cutting height is adjusted using the top link
arm (1).
Longer top link arm = shorter cutting height
Shorter top link arm = longer cutting height
3.2 Adjusting the ground pressure
The mower bar flotation is via an extension spring (2).
The ground pressure is adjusted on the threaded
spindle (1).
The mower bar should rest on the ground with a weight
of approx. 70 - 120 kg.
The adjustment can also be made by changing the
length of the retaining chain.
Longer retaining chain
pressure = increased ground
Shorter retaining chain
pressure = reduced ground
AFL-0-02
0
1
AFL-0-02
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Krone AFL 283 CV is a front disc mower designed for agricultural use. It features a cutting width of 2.83 meters and is equipped with a conditioner to improve crop flow. The cutting height can be adjusted to suit different crop conditions, and the ground pressure can also be adjusted to ensure a clean cut. The mower is designed for easy attachment and removal from the tractor, and it can be transported in a vertical position for space-saving storage.
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