AVANT A443490 Operator's Manual For Attachment

English
Rotary hoe 2021 1
Operator's Manual for Attachment
Rotary hoe
Product number
1200 mm
1350 mm
1500 mm
A425119
A443490
A37430
www.avanttecno.com
A431451 2021 1 EN 2018-
Rotary hoe 2021 1
Rotary hoe 2021 1
CONTENTS
1. FOREWORD ........................................................................................................................................ 4
Warning symbols used in this manual ...................................................................................................................................5
2. DESIGNED PURPOSE OF USE.......................................................................................................... 6
3. SAFETY INSTRUCTIONS FOR USING THE ATTACHMENT ...................................................... 7
3.1
Personal protective equipment...............................................................................................................................9
3.2
Safe shutdown procedure ........................................................................................................................................10
4. TECHNICAL SPECIFICATIONS ....................................................................................................... 11
4.1
Safety labels and main components of the attachment .................................................................................... 11
5. ASSEMBLING THE ATTACHMENT................................................................................................. 13
5.1
Connecting and disconnecting hydraulic hoses .................................................................................................. 14
6. OPERATING THE ATTACHMENT .................................................................................................. 16
6.1
Checks before use .....................................................................................................................................................17
6.2
Operator qualification ...............................................................................................................................................17
6.3
Operation .....................................................................................................................................................................18
6.4
Avoiding and clearing blockages ............................................................................................................................. 19
6.5
Direction of rotation .................................................................................................................................................20
6.6
Adjusting cultivation depth and dozer blade height .......................................................................................... 20
6.7
Adjusting the scraper ................................................................................................................................................20
6.8
Use on slopes ..............................................................................................................................................................21
6.9
Transport position .....................................................................................................................................................21
6.10
Storing the attachment .............................................................................................................................................21
7. MAINTENANCE AND SERVICE ....................................................................................................... 22
7.1
Inspection of hydraulic components ..................................................................................................................... 22
7.2
Cleaning the attachment...........................................................................................................................................23
7.3
Lubrication ...................................................................................................................................................................23
7.4
Inspection of metal structures ................................................................................................................................23
7.5
Rotary hoe blades ......................................................................................................................................................24
7.6
End of life disposal......................................................................................................................................................24
8. WARRANTY TERMS .......................................................................................................................... 25
4 (28)
1. Foreword
Avant Tecno Oy would like to thank you for your purchase of this attachment for your Avant loader. It has
been designed and manufactured based on years of experience on product development and manufacturing.
By familiarizing yourself with this manual and following the instructions, you ascertain your safety and ensure
the reliable operation and long service life of the equipment. Read the instructions carefully before starting to
use the equipment or performing maintenance.
The purpose of this manual is to help you to:

operate the equipment in a safe and efficient manner

observe and prevent any hazardous situations

keep the equipment intact and ensure a long service life
With these instructions, even an inexperienced user can use the attachment and loader safely. The manual
includes important instructions for experienced AVANT operators as well. Ensure that all persons using the
loader have received proper guidance and familiarised themselves with the manual of the loader, each
attachment that are used, and all safety instructions before using the equipment. Using the equipment for
other purposes or use in any other way than described in this manual is prohibited. Keep this manual at hand
throughout the service life of the equipment. If you sell or transfer the equipment, be sure to hand over this
manual to the new owner. If the manual is lost or damaged, you can request a new one from your Avant
dealer or from the manufacturer.
In addition to the safety instructions included in this manual, you must observe all occupational safety
regulations, local laws, and other regulations concerning the use of the equipment. Particularly the regulations
concerning the use of the equipment on public road areas must be observed. Contact your Avant dealer for
more information about local requirements before you operate the loader on road areas.
Contact your local AVANT dealer for any questions, service, spare parts or about any problems that may
occur with the operation of your machine.
This manual contains the original instructions in English. Due to continuous product development some of the
details shown in this manual may differ from your equipment. Pictures may also depict optional equipment or
features that are not currently available. We reserve the right to change the contents of the manual without
notification. Copyright © 2021 Avant Tecno Oy. All rights reserved.
5 (28)
.
Warning symbols used in this manual
The following warning symbols are used throughout this manual. They indicate factors that must be taken into
account to reduce the risk of personal injury or damage to property:
WARNING SAFETY ALERT SYMBOL
This symbol means: “Warning, be alert! Your safety is involved!”
Carefully read the message that follows, it warns of an immediate hazard
that could cause serious personal injury.
The safety alert symbol by itself and with related safety statement
indicates important safety messages throughout this Manual. It is used to
draw attention to instructions involving your personal safety or the safety
of others. When you see this symbol, be alert, your safety is involved,
carefully read the message that follows, and inform other operators.
DANGER
This signal word indicates a hazardous situation which, if not avoided, will cause
death or serious injury.
WARNING
This signal word indicates a potentially hazardous situation which, if not avoided,
could cause serious injury or death.
CAUTION
This signal word is used when minor injury could result if the instructions are not
followed properly.
This signal word indicates information about the correct operation and maintenance
of the equipment.
Failure to observe the instructions accompanying the symbol can lead to equipment
breakdown or other property damage.
6 (28)
2. Designed purpose of use
The AVANT Rotary hoe is an attachment that is suitable for use with AVANT multi purpose loaders that are
shown in Table 1. The attachment is intended to be used for soil cultivating, rotovating, and seed bed finishing
when renewing lawn areas, small fields, or similar.
When using the Rotary hoe, the loader is driven in reverse, so that the loader wheels do not interfere with
newly cultivated soil. A vertical grading rake with strong tines in front of the blades traps stones and debris,
effectively allowing soil to bury them. This gives a finished seeding bed in a single pass. The cultivating depth
of the hydraulically operated Rotary hoe can be adjusted to be 150 mm.
The attachment is equipped with a field roller, which compacts the ground after cultivating. Before compacting,
there is an adjustable dozer blade between the hoe and roller for levelling the soil before the field roller
finalizes it.
The Rotary hoe is intended for typical soft soil material in gardens. It is not intended for grading of, for
example, pathways, or other areas that consist mainly of gravel or rock. The Rotary hoe is not designed for
any other use than what is specified in this manual and must not be used for any other purposes than what is
intended for.
The attachment has been designed to require as little maintenance as possible. The operator can perform
regular maintenance tasks. All repair work can’t be performed by the operator, and demanding repair and
maintenance operations are to be left for professional technicians. All maintenance work must be done using
proper safety equipment. Spare parts must be identical with original specifications, which can be ensured by
using only original spare parts. A separate spare parts catalogue may be available, consult your Avant dealer.
Familiarise yourself with the manual's instructions regarding service and maintenance. Please contact your
AVANT dealer if you have additional questions about the operation or maintenance of the equipment, or if you
require spare parts or maintenance services.
Table 1 - Rotary hoe - Compatibility with Avant loaders
Model
Stage V
420
220
225
225LPG
313S
320S
423
528
R35
520
530
635
R20
R28
640
523
630
750
R35
745
760i
e5
635
755i
850
e6
640
860i
735
A425119 1200 mm
•
-
•
•
(•)
(•)
(•)
(•)
(•)
A443490 1350 mm
-
-
-
(•)
•
•
•
(•)
-
A37430
-
-
-
-
•
(•)
•
•
-
1500 mm
It is recommended to use the attachment only with loaders marked with • in Table 1. When using with models
marked with (•), full performance may not be achieved. Additional counterweights may also be required. For
compatibility with a model not shown in table, contact your Avant dealer.
When using loader models 635, 640, or R35, which are equipped with Stage V Kubota
V1505 engine, full performance may not be achieved with this attachment. These Stage
V models have lower hydraulic output which may affect performance of the attachment.
7 (28)
3. Safety instructions for using the attachment
Please bear in mind that safety is the result of several factors. The loader-attachment combination is highly
powerful and improper or careless use or maintenance may cause serious personal injury or property
damage. Due to this, all operators must carefully familiarise themselves about correct use and the operator's
manuals of both the loader and the attachment before starting operation. Do not use the attachment if you
have not completely familiarised yourself with its operation and the related hazards.
Misuse, careless use, or using an attachment that is in poor condition may
cause risk of serious injuries. Familiarise yourself with the controls of the loader,
correct coupling procedure, and the correct way to operate the attachment at a safe
DANGER
area. Study especially how to stop the equipment in a safe manner. Read all safety
precautions carefully.
Read all safety instructions carefully before handling the attachment
WARNING

When attaching an attachment to the loader, ensure that the locking pins of the
loader's quick attach plate are in the lower position and that they have locked
the attachment to the loader. Never lift or move an unlocked attachment.

This attachment is designed to be used by one operator at a time. Do not let others
near the danger area of the equipment when it is in use.

Always transport the attachment as low as possible to keep the centre of gravity low,
and keep the telescopic boom retracted during driving.

Risk of crushing - Never go or allow anyone else to go under the loader boom
or attachment. The stability of the loader may change when leaving the driver’s seat,
leading to tipping over of the machine. Always remember that the boom may lower
unexpectedly due to loss of stability, mechanical fault, or if another person operates
the controls of the loader, leading to crushing hazard. The loader is not intended to
be left to keep a load elevated for longer periods. Lower the attachment firmly on the
ground before leaving the driver's seat and never allow anyone to be under the boom
or attachment.

Hazard of entanglement - Rotating parts. Never leave the driver’s seat when the
attachment is running or if the auxiliary hydraulics control is locked on. Always
keep a safe distance between persons and machinery that may start or move. Stop
the equipment following the safe stopping procedure and lower the attachment firmly
on the ground before leaving the driver’s seat, or when other persons are present at
the working area.

Impact hazard - thrown objects. Do not let bystanders stay near the machine.
Stop the attachment if others get closer than 5 metres from the attachment. Use
only if all covers in place.

Risk of electric shock - Plan all rotovating tasks before operation! Find out if
there are buried electric cables, water lines, or other similar obstacles laid less than
one meter deep from the ground surface. Hitting such obstacle may lead to electric
shock, fire, gas explosion or other serious hazards.

Risk of cutting and severing - Never leave the driver’s seat when the
attachment is running or if the auxiliary hydraulics control lever is locked on.
The blades move for a short period after the hydraulic supply has been shut off.
Wait until the blades have stopped completely before going near the attachment.
8 (28)
WARNING

Pay attention to the surroundings and any other persons and machines moving in the
vicinity. Other persons must keep safety distance of 5 meters. Pay attention to the
contours of the terrain and other hazards, such as branches and trees that can reach
to the driver's area, loose rocks, and slippery surfaces.

The attachment is to be used by one operator at a time. Do not approach or allow
others to approach the operating area when another person is operating the
controls of the loader.

When detaching the Rotary hoe, ensure that it is secured against accidental
movement. To prevent the attachment from moving, lower it onto blocks of wood, for
example, not on its blades, which reach below the frame of the equipment.

Never use the attachment to lift or to transport persons or as any kind of work
platform even temporarily.

Make sure to use only an attachment that is in good condition. Check the attachment
thoroughly in regular intervals. Do not modify the attachment in a manner that would
affect its safety. It is prohibited to drill holes on the attachment, and welding or other
means of fixing hooks or other objects on the attachment is strictly prohibited.

Shut down the loader and place the attachment to a safe position as shown in Safe
stopping procedure before any cleaning, maintenance, or adjustments.

Use the attachment only for its intended purpose. Other use may create unnecessary
safety risks, and the equipment may get damaged.

Make sure that the loader is equipped with necessary safety components, and that
they are in working condition. Seat belt must be used. If there are specific hazards
related to the operating area, use appropriate safety equipment.

Also read the safety instructions and correct use of the loader from the operator's
manual of the loader.
Risk of crushing - Going under the loader boom or an
attachment can cause serious injury or death. Never go
under the loader boom and prevent others from getting near
DANGER
lifted boom or attachment. Going under a raised attachment
or loader boom is dangerous, as the boom may lower due to
loss of stability, mechanical fault or when other person
operates the controls of the loader. Lower the attachment
firmly on the ground to a safe position before leaving the
driver’s seat.
Keep in mind that the loader boom can be lowered or tilted
even if the engine has been shut down (crushing hazard).
The loader is not intended to be left to keep a load elevated
for longer periods. Always lower the attachment to a safe
position before leaving the driver's seat.
9 (28)
Entanglement and severing hazard - Never go near a running attachment. The
powerful rotating shaft can cause serious injuries to anyone too close to it. Always stop
the attachment following the safe stopping procedure before going near the attachment. If
WARNING
being near a running attachment is absolutely necessary to determine the condition of the
attachment watching from a distance, or fault finding operation, never wear loose
clothing, long scarves, jewellery, or other items that might become entangled with rotating
parts. If needed, also wear a hat to prevent long hair from coming into contact with the
rotating parts. Before maintenance and service stop the attachment following the safe
stopping procedure.
Beware of entanglement and crushing hazards especially
when removing blockages. If a blockage is cleared without
first turning off the auxiliary hydraulics of the loader, the
WARNING
rotating shaft will start immediately and potentially cause
severe injuries. Always stop the attachment by turning the
auxiliary hydraulics control lever to its neutral position before
leaving the driver’s seat, shut down the loader engine and
release the residual pressure of the hydraulic system.
Risk of serious personal injuries - Improper or careless use of the attachment may
cause hazardous situations. Use the attachment only for its intended use. Familiarise
WARNING
yourself with the loader controls in a safe area. Pay particular attention to the safe
stopping of the attachment and the loader.
3.1 Personal protective equipment
Remember to wear proper personal protective equipment:

The noise level at the driver's seat may exceed 85 dB(A) depending on loader
model and operating cycle. Extended exposure to loud noise can cause
hearing impairment. Wear hearing protection while working with the loader.

Wear protective gloves.

Wear safety boots whenever working with the loader.

Wear safety glasses e.g. when handling hydraulic components.

At some operating areas using the attachment may cause spreading of dust.
Protect yourself from dust with a respirator mask.
10 (28)
3.2 Safe shutdown procedure
Safe stopping of the attachment, before going near the attachment:
Always stop the attachment following safe stopping procedure before leaving
the driver's seat. Safe stopping procedure prevents all unintentional movements of
the attachment. Note that the loader boom can move down even if the engine of the
loader is turned off. Safe stopping procedure:
WARNING



Lower the boom and the attachment on the ground.

Prevent starting of the machine, remove ignition key.
Shut down the loader engine and lock the parking brake.
Release residual pressure from the hydraulic system; move all hydraulic control
levers to their extreme positions a couple of times.
11 (28)
4. Technical specifications
Table 2 - Rotary hoe - Specifications
Product number
A425119
A443490
A37430
Working width:
1200 mm
1350 mm
1500 mm
Field roller width:
1400 mm
1550 mm
1700 mm
Total width:
1530 mm
1700 mm
1830 mm
Length:
1140 mm
1140 mm
1140 mm
Weight:
250 kg
267 kg
295 kg
Number of blades:
32 pcs (16 + 16)
36 pcs (18 + 18)
40 pcs (20 + 20)
Cultivating depth:
0-150 mm
0-150 mm
0-150 mm
Recommended input of hydraulic energy:
30-40 l/min
40-50 l/min
50-60 l/min
50 l/min
70 l/min
70 l/min
Maximum input of hydraulic energy:
22,5 MPa (225 Bar) 22,5 MPa (225 Bar) 22,5 MPa (225 Bar)
Compatible AVANT loader models:
See Table 1
4.1 Safety labels and main components of the attachment
Listed below are the labels and markings on the attachment. They must be visible and readable on the
equipment. Replace any unclear or missing label. New labels are available via your retailer or contact
information provided on the cover.
Make sure all warning decals are readable. The warning labels contain important
safety information and they help to identify and remember the hazards related to the
equipment. Replace damaged or missing warning labels with new ones.
WARNING
.
..
Attachment identification plate A426147
/ A443831 / A430646
A46771
A46772
.
A46802
..
To apply a new label: Clean the surface thoroughly to remove all grease. Allow it to dry completely. Peel off
the protective film of the label and press firmly to apply. Take care not to touch the glue of the label.
12 (28)
Table 3 - Decal locations and warning messages
Decal
Warning message
1 A46771
Misuse hazard - Read instructions before
use.
2 A46772
Crushing hazard - Do not go under a
raised attachment; stay away from raised
equipment.
3 A46802
Beware of sharp blades – never reach to
the rotating components and do not use
the equipment without all covers in
place.
A426147 /
4 A443831 /
A430646
Attachment identification plate
.
Table 4 - Rotary hoe - Main components
1 Coupling plate with Avant quick coupling brackets
2 Hydraulic motor
3 Frame
4 Blade shaft
5 Blade
6 Bearing
7 Adjustment gear for adjusting the cultivating depth
8 Field roller
9 Adjustable dozer blade
10 Adjustable scraper on front of the field roller
11 Grading rake
12 Multiconnector holder
..
13 (28)
5. Assembling the attachment
Attaching the attachment to the loader is quick and easy, but it must be done carefully. The attachment is
mounted to the loader boom by using the quick attach plate on the loader boom and the counterpart on the
attachment.
If the attachment is not locked to the loader, it may detach from the loader and cause a hazardous situation.
The loader must not be driven and the boom must never be lifted when the attachment has not been locked.
To prevent hazardous situations, always follow the coupling procedure shown below. Also remember the
safety instructions shown in this manual. The attachment is mounted to the loader as follows:
Crushing risk - Make sure that an unlocked attachment will not move or fall over.
Do not stay in the area between the attachment and the loader. Mount the attachment
only on level surface.
WARNING
Never move or lift an attachment that has not been locked.
Avant quick coupling system:
Step 1:

Lift the quick attach plate locking pins up and turn them backwards into the slot
so that they are locked in the upper position.

If your loader is equipped with a hydraulic attachment locking system, see
additional instructions about the use of the locking system from the relevant
manuals.

Make sure that the hydraulic hoses are positioned so that they will not get in
between the coupling plate of the loader and the attachment, and that they will
not get squeezed or chafed against sharp edges.
Step 2:


Turn the quick attach plate hydraulically to an obliquely forward position.

Align the upper pins of the loader’s quick coupling plate so that they are under
the corresponding brackets of the attachment.
Drive the loader onto the attachment. If your loader is equipped with a
telescopic boom, you can utilise this.
Step 3:

Lift the boom slightly – pull the boom control lever backward to raise the
attachment off the ground.

Turn the boom control lever left to turn the bottom section of the quick attach
plate onto the attachment.


Lock the locking pins manually or lock the hydraulic locking.
Always check the locking of both locking pins.
14 (28)
Risk of crushing - Avoid tipping over the attachment. Excessive tilting or lifting of an
unlocked attachment increases the risk of tipping the attachment over. Do not use the
automatic locking of the locking pins when the attachment is lifted more than one meter
WARNING
from the ground. If the locking pins do not return to the normal position when tilting, do
not tilt or raise the attachment any more. Lower the attachment on the ground and
secure the locking manually.
Risk of falling objects - Prevent dropping of
attachment.
WARNING
An attachment that has not been completely locked to the
loader may fall on the boom or towards the operator, or
fall under the loader during driving, causing loss of
control of the loader. Never move or lift an attachment
that has not been locked. Before moving or lifting the
attachment, make sure that the locking pins are in the
lower position and come through the fasteners on the
attachment on both sides.
Make sure the loader is compatible with the attachment. Stability of the loader,
possible overload of the attachment, and compatibility of loader control systems must be
ensured in addition to mechanical compatibility of the attachment. If you use the
WARNING
attachment with a loader that is not fit to be used with the attachment model you have,
risks include tipping over, damage to attachment due to overload, and risks related to
uncontrolled motion of attachment and its parts. If your loader is not listed in Table 1 on
page 6, ask your Avant dealer before using this attachment.
5.1 Connecting and disconnecting hydraulic hoses
On Avant loaders the hydraulic hoses are connected using the multi connector system. If you have an Avant
300-700 series loader with the conventional quick couplers and wish to change to the multi connector system,
contact your Avant dealer or service point for instructions or installation services.
Risk of movement of the attachment and ejection of hydraulic oil - Never connect
or disconnect quick couplings or other hydraulic components while the control
lever of the auxiliary hydraulics control lever is locked on or if the system is
WARNING
pressurized. Connecting or disconnecting the hydraulic couplings while the system is
pressurized may lead to unintended movements of the attachment, or ejection of highpressure fluid, which can cause serious injuries or burns. Follow safe stopping procedure
before disconnecting hydraulics.
15 (28)
Keep all fittings as clean as possible; use the protective caps on both the attachment and
the loader. Dirt, ice, etc. may make using the fittings significantly more difficult. Never
leave the hoses hanging on the ground; place the couplings onto the holder on the
attachment.
Connecting the multiconnector system:
1.
Align the pins of the attachment connector with corresponding
holes of the loader connector. The multiconnector will not connect
if the attachment connector is upside down.
2.
Connect and lock the multiconnector by turning the lever towards
the loader.
The lever should move easily all the way to its locking position. If the lever does not slide smoothly, check the
alignment and position of the connector and clean the connectors. Also shut down the loader and release the
residual hydraulic pressure.
To disconnect the multiconnector system:
Before disconnecting put the attachment down on a solid and even
surface.
1.
Switch off the auxiliary hydraulics of the loader.
2.
While pushing unlock button, turn the lever to disconnect the
connector.
3.
After ending operation put the multiconnector on its holder on the
attachment.
Disconnecting hydraulic hoses:
Before disconnecting the fittings, lower the attachment to safe position on solid and level surface. Turn the
control lever of the auxiliary hydraulics to its neutral position.
When uncoupling the attachment, always disconnect the hydraulic couplings before
unlocking the quick coupling plate, to prevent hose damage and any oil spills. Reinstall
the protective caps on the fittings to prevent impurities from entering the hydraulic
system.
Releasing residual hydraulic pressure:
In case residual pressure is left in the hydraulic system of the attachment, it is often possible to disconnect the
hydraulic couplings, but it may be difficult to connect them the next time. If the fittings will not connect, the
residual pressure must be released by turning the auxiliary hydraulics control lever of the loader, when the
engine is turned off. To make sure that there will not be residual pressure in the hydraulic system of the
attachment, shut down the loader engine and move the auxiliary hydraulics control lever of the loader back
and forth before disconnecting the couplings.
16 (28)
6. Operating the attachment
Check the attachment and the operating environment once more before starting to work, and that all obstacles
have been removed from the operating area. Quick inspection of the equipment and the operating area before
use are parts of ensuring safety and the best performance of the equipment.
.
..
Risk of crushing - Never allow anyone to get under a
lifted attachment or loader boom. Keep in mind that the
loader boom can be lowered or tilted even if the engine has
WARNING
been shut down (crushing hazard). The loader is not intended
to be left to keep a load elevated for longer periods. Always
lower the attachment to a safe position before leaving the
driver's seat.
.
..
Thrown objects - impact hazard. Before using the
equipment, check that the attachment and the loader are
intact and that all protective covers are in place. Note that
WARNING
regardless of the protective housing of the Rotary hoe, rocks,
pieces of wood, or other objects found at the operating area,
may be ejected by the hoe. Stop the hoe if there are others at
a distance of less than 5 meters from the work site.
.
..
17 (28)
6.1 Checks before use

Remove all obstacles from the operating area, such as large tree branches or rocks, before starting
the operation. Remember correct working methods and avoid leaving the driver’s seat unnecessarily.
Remove or mark also all hidden obstacles that could cause damages or risks of injuries, and make
sure that there are no electric cables, water or gas pipes at the reach depth of the equipment.

Use only when all pins are locked and secured in place.

Before each use, check the general condition of the Rotary hoe and the loader. Ensure that the blades
are intact and can rotate freely, and that there is no string or other foreign material coiled around the
shaft of the Rotary hoe.

Check that there is no broken components in the Rotary hoe.

Check regularly to ensure there are no hydraulic leaks. Refer to chapter 7 for maintenance
instructions.

Ensure that bystanders are at a safe distance when operating the equipment. Do not let anyone to
enter danger area of the boom or to stay directly in front of the loader. Also make sure that it is safe to
reverse with the loader. Never assume that bystanders will remain where you last saw them;
especially children are often attracted to the moving equipment.

Operate the attachment and the controls of the loader only when seated on the driver’s seat. Ensure
that the loader and the attachment are used in a safe manner and as intended. Do not allow children
to operate the equipment.

Never operate the loader or attachments while under the influence of alcohol, drugs, medication that
may impair judgement or cause drowsiness, or if not otherwise medically fit to operate the equipment.

Remember correct working methods and avoid leaving the driver's seat unnecessarily. Practise the
use of the attachment and the controls of the loader in a safe area. If you are unfamiliar with the
particular loader model, it is recommended to practise its use without any attachments.
6.2 Operator qualification
Anyone who intends to use this attachment must:

Know the intended use of this attachment.

Know how to use the loader safely in different operating conditions.

Read and always follow the instructions concerning the use of the attachment in this operator's
manual.

Have this manual and the operator's manual of the loader available.

Ensure that the loader and the attachment are used in a safe manner and as intended.

Never allow children to operate the equipment.

Never operate the loader or attachments while under the influence of alcohol, drugs, medication that
may impair judgement or cause drowsiness, or if not otherwise medically fit to operate the equipment.

Complete any possible mandatory training required by the employer before use.
.
18 (28)
6.3 Operation
Using the Rotary hoe:
1.
Set the attachment to working position
parallel on the ground, as described in
the adjacent figure.
2.
Start the Rotary hoe by turning the
auxiliary hydraulics control lever to its
locking position, or by using the buttons
of the joystick.
3.
Set the rotating speed of the attachment
and drive speed of the loader according
to the operating conditions.
The Rotary hoe should be used with high
loader engine rpm, and depending on the
model of the loader and the hoe, one or
two auxiliary hydraulic pumps are used
(where applicable).
4.
The Rotary hoe is operated by reversing
the loader, so that the wheels of the
loader will not press the cultivated soil.
If your loader is equipped with a
telescopic boom, you can utilize it for a
better view to the working area.
This attachment is operated with the auxiliary hydraulics of the loader.
Auxiliary hydraulics control lever:
(or electric joystick buttons):
Move the auxiliary hydraulics control lever of the loader towards its
locking position to rotate the attachment to its normal operating direction.
Alternatively, use the electric buttons of the joystick (if installed) when
using the attachment intermittently.
Stop the attachment by releasing the lever to neutral position.
The reverse direction is not recommended. The reverse direction can be
used, if necessary, to clear dirt that has stuck to the blades. The reverse
direction should be used only when the attachment is lifted off the
ground.
19 (28)
The work is influenced by the following factors:
1.
2.
3.
4.
Driving speed
Loader engine revolutions, loader model, output power of auxiliary hydraulics
The type of soil being cultivated, its compactness and dampness
Cultivation depth
The denser the soil is, the more the Rotary hoe requires hydraulic power from the loader. If the soil is loose,
slightly higher driving speed may be used, but on stiff and compact soil high loader engine engine rpm must
be used (high hydraulic oil output) and the driving speed must be relatively low. In some cases it may be
beneficial to use low operating depth to break the surface of the soil, and then till the soil more thoroughly with
a second run.
If the Rotary hoe stops rotating,


the driving speed has been too high or,
the hoe has hit a rock.
If blades hit a rock, lift the hoe slightly off the ground to avoid wearing or damaging the blades. If an obstacle
on the ground cannot be removed, try to go around it, as the Rotary hoe should not be used to chop obstacles
on the ground.
6.4 Avoiding and clearing blockages
Beware of entanglement and crushing hazards especially
when removing blockages. If a blockage is cleared without
first turning off the auxiliary hydraulics of the loader, the blade
WARNING
shaft of the hoe will start immediately and potentially cause
severe injuries. Always stop the attachment by turning the
auxiliary hydraulics control lever to its neutral position before
leaving the driver’s seat, shut down the loader engine and
release the residual pressure of the hydraulic system.
Prevent blocking of the Rotary hoe by adjusting the driving speed according to the operating conditions. Keep
the equipment clean, so that material will not stick on it.
Normally, a blockage can be cleared by rotating the blade shaft to the opposite direction. Slightly lift the rotary
hoe up to ease cleaning of the attachment, if necessary. Avoid ejecting of material at high speed.
If necessary, clear the blockage manually using e.g. a broom, or broom handle, water spray, or other suitable
means that will not damage the blades or other parts of the Rotary hoe. Follow safe stopping procedure
before going near the attachment.
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Risk of cutting and severing - Sharp edges and severing
points on work tools. Beware of the sharp blades and risk
of crushing especially during maintenance or when removing
DANGER
blockages. Always stop the attachment by following the safe
stopping procedure. To make sure that the attachment will
not rotate, disconnect the multiconnector (or hydraulic quick
couplings) before going near it. Note that the loader boom
moves down and may be tilted even if the engine has been
stopped. Never go under a raised boom or any component of
the attachment. Keep away from the moving linkage.
6.5 Direction of rotation
Check the rotating direction of the blades. The
blades should rotate clockwise when seen from the
right side of the machine, in other words, the hoe
should rotate to the opposite direction as the wheels
when reversing with the loader. If the hoe rotates the
wrong way, contact Avant service, or interchange the
hydraulic pressure hoses' places when using
conventional quick couplings.
6.6 Adjusting cultivation depth and dozer blade height
The cultivation depth can be adjusted steplessly by
setting the field roller height and by tilting the loader
boom. After the tilting and height is set correctly, lift
the hoe by using only the boom lifting movement,
without tilting the attachment. This way the hoe can
be lowered quickly to the correct operating position
and cultivation depth.
The dozer blade is adjusted vertically, and its height
can be adjusted by setting the blade to one of the six
possible options parallel on both sides.
6.7 Adjusting the scraper
The Rotary hoe is equipped with a scraper for
keeping the field roller clean during operation.
The scraper (1) is adjusted by loosening the fixing
screws (2) parallel on both sides and moving the
scraper (1) horizontally.
21 (28)
6.8 Use on slopes
Using the equipment on inclined terrain and slopes requires extra caution. Watch for holes, bumps, rocks and
other possible hidden obstacles. Uneven terrain could overturn the machine. Use low speed and do not make
sudden changes in speed or direction. Try to use the Rotary hoe by driving straight up or down the hill, not
across, to avoid excessive side tilting. If the loader stops while driving up a steep slope, first stop the
attachment and then reverse slightly. Exercise extreme caution when moving near ditches or embankments
as the machine could suddenly turn over in case an edge caves in. On 200-series loaders, It is recommended
to use the optional wheel weights for the best stability on uneven terrain.
6.9 Transport position
Keep the loader stable. Always
transport the attachment as low and
close to the ground as possible.
WARNING
Keep the telescopic boom retracted
during drive.
6.10 Storing the attachment
Uncouple and store the attachment on level ground. The best way to store the attachment is a place where it
is protected from direct sunlight, rain, and extreme temperatures.

Avoid leaving the attachment laying directly on the ground. Place it on blocks of wood or on a pallet, for
example.

Place the multiconnector on to its holder as indicated with an arrow in the figure below. Never leave the
hydraulic connector on the ground.


Make sure that the attachment is secured against all movements during storage.
Never climb on the attachment.
For longer storage periods clean the
attachment thoroughly, touch up the paint
where needed and grease the lubrication
points in order to prevent rust damage.
22 (28)
7. Maintenance and Service
The attachment has been designed to be as maintenance free as possible. Continuous maintenance includes
regular cleaning and lubrication, and monitoring the condition of the attachment. Because of the crushing
hazard caused by lowering machine parts, all maintenance work must be done when moving parts have been
lowered down completely and the attachment is lowered flat against the ground.
Risk of crushing - Never go under lifted attachment. Make sure the attachment is
properly supported during all maintenance work. Never go under a lifted attachment. The
loader boom may lower unexpectedly during maintenance causing serious injuries from
DANGER
crushing or impact even when the loader engine is not running. All maintenance and
service must be performed when the attachment has been lowered down to a safe
position.
7.1 Inspection of hydraulic components
Check the condition of the hydraulic hoses and components when the engine has been turned off, system has
cooled down, and the pressure has been relieved. Do not use the equipment, if you have discovered a leak in
the hydraulic system of the attachment or the loader. Leaking hydraulic fluid may penetrate skin and cause
serious injuries. Seek medical attention immediately in case hydraulic fluid penetrates the skin. Wash any part
of body that has been in contact with hydraulic oil carefully with water and soap. Hydraulic fluid is also harmful
to the environment and any leak to the environment must be prevented. Repair all leaks immediately after
detecting them; a small leak can quickly grow into a big one. Operate the attachment only with type of
hydraulic oil that is accepted for use in Avant loaders.
Risk of high pressure fluid injection
through skin - Release residual pressure
before maintenance. Never handle hydraulic
DANGER
components when the hydraulic system is
pressurised, since a fitting may break or
become loose and the released oil may cause
serious injuries. Do not use the equipment, if
you have discovered a fault in the hydraulic
system.
Check hoses visually for cracks or abrasions. If there are signs of leaks, to check a component, hold up a
piece of cardboard in the area where a leak is suspected. Do not use hands to search for leaks. Monitor the
wearing of the hoses and stop the use, if the surface layer of any hose has worn off. Check the routing of the
hoses; adjust the hose clamps to avoid abrasion to the hoses. The hoses have limited service life. Depending
on operating conditions all hoses must be inspected thoroughly no later than after 3 to 5 years of use, and if
required, they must be replaced with new ones.
Finding any fault means that the hydraulic hose or component must be replaced and the equipment must not
be used until it is repaired. Spare parts are available from your nearest AVANT retailer or authorised service
point. Leave the repair work to professional service technicians, if you don’t have adequate knowledge and
experience about hydraulic assemblies and how to perform the repairing safely.
Always allow the hydraulic systems of the loader and the attachment to cool down
properly before any maintenance operations.
23 (28)
7.2 Cleaning the attachment
Clean the rotary hoe as soon as possible after use, since this makes cleaning easier. Right after use, lift the
rotary hoe off the ground and rotate it on the air, starting slowly, to remove the largest lumps of soil from the
blades. Do not strike the hoe against the ground. A pressure washer and mild detergent can be used for
cleaning. Do not use strong solvents, and do not spray directly at the hydraulic components, or at the labels
on the attachment. After washing lubricate the lubrication points.
Clean the attachment regularly to prevent accumulation of dirt which is more difficult to remove.
Entanglement hazard - Risk of entanglement also persists during maintenance.
Always follow the safe stopping procedure before any cleaning, maintenance, or service
WARNING
operation.
7.3 Lubrication
The rotary hoe has four lubrication points, located at the ends of the flail roller, at the attachment gear and at
end of the blade shaft.
A small amount of lubricant should be added to the lubrication points at the bearings regularly. Correct
lubrication interval depends heavily on operating conditions but lubricant must be added at least after every 510 hours of use.
Clean the end of the nipple before greasing and add only a small amount of grease at a time. The lubrication
nipple is a standard R1/8" nipple. Replace it, if damaged.
Lubricant must be added approximately every 5 to 10 operating hours. Clean the end of
the nipple before greasing. Only add the grease amount of a couple of grease press
pushes at a time.
7.4 Inspection of metal structures
Also the metal structures of the attachment must be inspected regularly. Check visually for damages and
inspect the quick attach brackets and their surrounding area carefully. The attachment must not be used if it is
deformed, cracked, or torn.
Welding repairs are only allowed to be carried out by professional welders. When welding, only methods and
additives suited for steel used in attachment must be used. For more information about repairs contact your
nearest service point.
24 (28)
7.5 Rotary hoe blades
The condition of the blades should be checked after every few uses. When the blades are in good shape, they
penetrate to the ground surface better and therefore the hoe needs less power to operate. If the performance
of the rotary hoe has weakened from the original, the blades have probably become very blunt or some of the
blades have been damaged. The blades wear down during normal use and they may bend or crack as they hit
rocks. If the blades are bent, they have deep notches, cracks or similar signs of damage, the blades should be
replaced with new ones.
The blade shaft is consists of
pairs of left- and righthand
blades, and they can be
replaced independently as
needed. Highlighted in the
adjacent figure are left-hand
blades A428806.
Evenly worn blades can be
sharpened. Do not sharpen
the blades razor-sharp, since
this will make them wear down
very
quickly
and
over
sharpness does not improve
the performance of the hoe.
Note
that
the
blade
temperature should remain as
even as possible during
sharpening. Excess heating
will
weaken
the
tensile
strength and wear resistance
of the steel. Only use blades
similar to the original ones.
Abnormal vibration that remains after thorough cleaning of the equipment may be a sign of imbalance of the
blade axle. Replace damaged blades as needed. Imbalance may lead to damage to the bearings. Contact
service, if the vibration persists.
If the blades have large notches or cracks or have worn down excessively, they must be
replaced. Always use good protective gloves when handling the blades.
7.6 End of life disposal
When the attachment is at the end of its useful life recycle and dispose of the attachment properly. Dismantle
the attachment and separate the different materials, such as plastic, steel, rubber, and oils, for example. Drain
and collect all oils and handle them by following the current local regulations. Never leave any oil or other
material in the environment.
Recycle each material by delivering them to a proper collecting place. Let a waste management company do
the recycling, if possible.
25 (28)
8. Warranty terms
.
Avant Tecno Oy grants a warranty of one year (12 months) from the date of purchase for the attachment it
manufactures.
The warranty covers repair costs as follows:


Work costs are covered, if the repair is not performed at the factory.
The factory replaces any defective components or consumables.
The factory may reimburse the price of components purchased by the customer in special cases that have
been agreed in advance.
The warranty does not cover:


Normal maintenance work or parts and consumables required for it.


Consequences of a defect, such as interruption of work or other possible additional damages.
Damages caused by unusual operating conditions or ways of use, negligence, structural changes made
without the consent of Avant Tecno Oy, use of non-original parts or lack of maintenance.
Travel and/or freight costs caused by the repair.
Rotary hoe 2021 1
FI
EY-vaatimustenmukaisuusvakuutus
Alkuperäinen kieliversio
SE EG-försäkran om överensstämmelse
Originalversion
EN EC Declaration of Conformity
Original language
Valmistaja / Tillverkare / Manufacturer
AVANT TECNO OY
Osoite / Adress / Address
Ylötie 1
33470 YLÖJÄRVI, FINLAND
Vakuutamme täten, että alla mainitut tuotteet täyttävät konedirektiivin turvallisuus- ja terveysvaatimukset (direktiivi
2006/42/EY muutoksineen). Seuraavia yhdenmukaistettuja standardeja on sovellettu /
Vi försäkrar härmed att nedan beskrivna produkter överensstämmer med hälso- och säkerhetskrav i EG-maskindirektiv
(EG-direktiv 2006/42/EG som ändrat). Följande harmoniserade standarder har tillämpats /
We hereby declare that the products listed below are in conformity with the provisions of the Machinery Directive (directive
2006/42/EC as amended). The following harmonized standards have been applied:
SFS-EN ISO 12100, SFS-EN ISO 4413
Mallit / Modeller / Models
Avant
Hydraulitoiminen kelajyrsin; Avant-kuormaajan työlaite
Hydraulisk jordfräs; arbetsredskap för Avant lastare
Hydraulic rotary hoe; attachment for Avant loaders
1200
A425119
1350
A443490
1500
A37430
4.12.2020 Ylöjärvi, Finland
Risto Käkelä,
Toimitusjohtaja / Verkställande direktör /
Managing Director