Avantco A21646 User manual

Horse Arena Harrow
2023 1
Operator's Manual for Attachment
Horse Arena Harrow
Product number
A21646
English
A431450 2023 1 EN 2018-
www.avanttecno.com

Horse Arena Harrow 2023 1

Horse Arena Harrow 2023 1
CONTENTS
1. FOREWORD ........................................................................................................................................ 4
Warning symbols used in this manual ...................................................................................................................................5
2. DESIGNED PURPOSE OF USE.......................................................................................................... 6
3. SAFETY INSTRUCTIONS FOR USING THE HORSE ARENA HARROW ................................... 7
3.1 Personal protective equipment...............................................................................................................................8
3.2 Safe shutdown procedure ........................................................................................................................................8
4. TECHNICAL SPECIFICATIONS ....................................................................................................... 9
4.1 Safety labels and main components of the attachment ....................................................................................9
4.2 Lifting .............................................................................................................................................................................11
5. USING THE HORSE ARENA HARROW .......................................................................................... 12
5.1 Checks before use .....................................................................................................................................................12
5.2 Coupling & Adjustments...........................................................................................................................................13
5.2.1 Connect electric cable of the water spraying system (option)..............................................................14
5.2.2 Uncoupling...........................................................................................................................................................14
5.3 Use .................................................................................................................................................................................15
5.4 Storage ..........................................................................................................................................................................16
5.5 Support wheels (option)...........................................................................................................................................17
5.5.1 Transport position.............................................................................................................................................17
5.6 Mounting accessory (option)...................................................................................................................................18
5.6.1 Transport with lifting accessory.....................................................................................................................18
5.7 Hydraulic support wheels (option)........................................................................................................................19
5.7.1 Using the hydraulic support wheels..............................................................................................................19
5.7.2 Installation of the hydraulic support wheels ...............................................................................................19
5.8 Extra weights (option) ..............................................................................................................................................20
6. WATER SPRAYING SYSTEM............................................................................................................ 21
6.1 Using the water spraying system............................................................................................................................21
6.2 Installation of water spraying system ....................................................................................................................22
7. MAINTENANCE AND SERVICE ....................................................................................................... 24
7.1 Inspection of hydraulic components .....................................................................................................................24
7.2 Cleaning the attachment...........................................................................................................................................25
7.3 Lubrication ...................................................................................................................................................................25
7.4 Inspection of metal structures................................................................................................................................25
7.4.1 Tine maintenance...............................................................................................................................................25
7.5 End of life disposal......................................................................................................................................................25
8. WARRANTY TERMS .......................................................................................................................... 26

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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 Operator's 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 © 2023 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 Horse arena harrow is an attachment that is suitable for use with AVANT compact loaders that
are shown in Table 1. The Horse arena harrow is an efficient tool for levelling and loosening of horse arena
riding surfaces. The harrow has two spring loaded tine rows which will loosen the surface, a leveller that
makes the surface completely even, and a tilling roller that will compact the ground, leaving a finished surface
suited for horse’s hoof.
A side scraper blade can be lowered when needed to level the sides of the riding arena. The harrow will only
mix the top layer of the surface, and correctly adjusted harrow will not damage the understructure of the riding
surface. The attachment can be adjusted for different types of riding surfaces, and extra weights can be added
as needed.
Usually the Horse arena harrow A21646 does not require rear hydraulic outlet on the loader, and only rear tow
hitch ball is needed. The harrow is intended for levelling all soft materials generally used at horse arenas or
similar areas. The Horse arena harrow is not intended for other landscaping or green area maintenance,
where other types of harrows or tillers are needed. When there is a need to transport the harrow outside horse
arenas, the optional support wheel kit should be installed and the wheels must be lowered to protect the
harrow from damage. The extra wheels are also available hydraulically supported, in which case the double
acting rear hydraulics outlet is necessary.
A water spraying system is available as an option. The water spraying system A37065 helps to level some
materials, and will also reduce spreading of dust during levelling work. The water spraying kit can be installed
with the instructions in this manual.
The Horse arena harrow 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 - Horse Arena Harrow - Compatibility with Avant loaders
Model
220
225
225LPG
313S
320S
420
423
520
523
525LPG
528
530
630
635
640
645i
650i
735
745
750
755i
760i
850
860i
e5
e6
A21646 •- ••••••
The Horse arena harrow can be used with all articulated frame Avant loaders that are equipped with 50 mm
ball trailer coupling.

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3. Safety instructions for using the Horse arena harrow
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.
DANGER
Misuse, careless use, or using an attachment t
hat 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
area. Study especially how to stop the equipment in a saf
e manner. Read all safety
precautions carefully.
Read all safety instructions carefully before handling the attachment
WARNING
Risk of run-over by loose attachment or loss of control - Always ensure
positive locking of the trailer coupling.
Risk of suffocation - Never operate the loader indoors or at poorly ventilated
areas. Ensure that ventilation is sufficient when operating indoors. Do not operate the
loader in closed spaces regardless of the engine or fuel type. Exhaust gases may
concentrate to hazardous levels.
Never transport loads or persons with the harrow.
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.
Use the equipment only for its intended purpose. Other use may create unnecessary
safety risks, and the equipment may get damaged.
Pay attention to the surroundings and any other persons and machines moving in the
vicinity. Pay attention to the contours of the terrain and other hazards, such as
branches and trees that can reach to the driver's area, loos
e rocks, and slippery
surfaces.
Always keep a safety distance of 2 metres from other persons and animals.
Shut down the loader and place the attachment to a safe position as shown in Safe
stopping procedure before any cleaning, maintenance, or adjustments.
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.
.

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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) dependin
g 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.
. ..
3.2 Safe shutdown procedure
Safe position of the attachment, before leaving the loader or the attachment unattended
WARNING
Always set the attachment to a safe position before going near the attachment.
Safe position will prevent unintentional movements of the attachment. Safe stopping
procedure:

Lower the boom completely down (and lower any attachment possibly fitted on the
loader boom on the ground).
Shut down the loader engine and lock the parking brake.

Prevent moving of an uncoupled attachment. Use blocks if necessary. Lower the
leveller on the ground if not parking on a level surface.

Release the residual pressure from the hydraulic system; move all hydraulic control
levers to their extreme positions a couple of times.
Prevent starting of the machine, remove ignition key.
Never climb on the harrow.

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4. Technical specifications
Table 2 – Horse arena harrow - Specifications
Product number A21646
Width: 1 530 mm
Other dimensions: See overview
Weight: 166 kg
Compatible AVANT loaders: See Table 1, Designed purpose of use
Options:
Transport wheel kit: A36593 (kit weight 12 kg)
Hydraulic transport wheel kit: A37547 (kit weight 28 kg)
Water spraying system: A37065 (tank volume 120 l)
Additional weights: A35957 / 31 kg each, max 4 pcs
Mounting kit for mounting attachment
to Avant quick coupling: A449060
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.
WARNING
Make sure all warning decals are readable.
The warning labels contain important
safety informati
on and they help to identify and remember the hazards related to the
equipment. Replace damaged or missing warning labels with new ones.
Attachment identification plate
A419159
A46771 A46803
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.
.

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Table 3 - Decal locations and warning messages
Decal Warning message
1 A46771 Misuse hazard -
Read instructions before
use.
2 A46803
Crushing hazard, moving components.
Keep clear of moving components.
3
A419159
Attachment identification plate
. ..
Table 4 - Horse Arena Harrow - Main components
1 Trailer coupling, 50 mm ball hitch
2 Nose wheel
3 Towbar adjustment
4 Harrow tines
5 Leveller
6 Leveller adjustment
7 Roller
8 Roller/tine balance adjustment
9 Support wheels (option)
10 Extra weights (option)
11 Side scraper blade
12 Side wheel
13 Water spraying system (option)
. ..

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4.2 Lifting
Make sure that the attachment is properly secured against unintended movements during lifting operation.
Use appropriate type of lifting accessories, lifting straps, chains or hooks, for example. Do not use lifting
accessories if there are signs of damage, deformation, or otherwise unsafe conditions.
Lift the attachment by using the lifting points, that
are shown in the adjacent figure.

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5. Using the Horse arena harrow
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.
5.1 Checks before use
Make sure that other persons are at a safe distance from the loader and the attachment. Never
operate the loader if another person is close to the loader. Always make sure that it is safe to reverse
with the loader.
Check the general condition of the attachment and the loader. The attachment must not be used, if it
and the the loader are not in good working condition.
Operate the attachment only while 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.
Remove all obstacles from the operating area beforehand. Remember correct and healthy working
methods and avoid leaving the driver’s seat unnecessarily.
Do not use the harrow to transport loads or persons.
Use only when the harrow is properly locked and secured in trailer coupling of the loader.
Check that there is no broken tine in the harrow.
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.
WARNING
Make sure the loader is compatible with the attachment.
Stability of the loader,
possible overload of the att
achment, and compatibility of loader control systems must be
ensured in addition to mechanical compatibility of the attachment. If you use the
attachment with a loader that is not fit to be used with the attachment model you have,
risks include tipping ove
r, 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 , ask your Avant dealer before using this attachment.
WARNING
Avoid running over persons - Check surroundings before driving.
Always look in the
direction the loader is moving. Before reversing, always ensure that bystanders,
especially children, are at a safe distance to avoid back-over accidents.
. ..

13 (28)
5.2 Coupling & Adjustments
It is important to check the adjustments of the attachment before using it for the first time. Actual correct
settings depend heavily on the material and factors such as compactness or moisture of the material. Begin
with tines adjusted higher than the roller to avoid unnecessary or damaging mixing of the lower materials of
the arena.
There are several important adjustments that must be made for optimal performance and finish:
1.
Remove pin and adjust the
towbar
height/angle
according to the height
of the trailer hitch on the loader.
The bar should be adjusted so that
the frame of the harrow is level when
it is coupled to the loader.
Use the nose wheel as necessary.
2.
Lock the towbar to the loader trailer
hitch. Lift the nose wheel up.
Make sure that the hitch loc
ks on the
hitch ball. On the side of the towing
hitch, there is a coloured indicator
with red, yellow and green markings
on it. When the trailer is locked, the
arrow marker should point to the
green area.
3. Adjust the
balance between the
rear roller and the tines
, by using
the handle at the rear.
If needed, the roller can be lowered
so that the harrows will not touch the
ground.
4. Adjust the leveller height
on both
sides:
A:
The leveller can be set to either
locked position, by sliding the pin
through the slot A.
B:
On some materials, a floating
position for the leveller may work
better (B). Place the pin above the
slot A.
WARNING
Risk of crushing - Keep hands away between the leveller and the frame. Removing a
pin makes the leveller to fall
down. Never keep a hand between the frame and leveller
when removing the pin.

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5. Adjust the
side wheel and side
scraper blade:
Both the wheel and the scraper
blade can be fitted on either side of
the harrow.
5.2.1 Connect electric cable of the water spraying system (option)
If the harrow is equipped with the water spraying system, its electric harness must be connected to the loader.
5.2.1.1 To connect the electric harness of the attachment to the loader
To operate the water spraying system, its cable harness A34731, delivered
with the attachment and equipped with a 2-
position switch, is connected to
the 12 V outlet on the loader. Select the location of the switch in the cab
where it is easily accessible but will not be used inadvertently.
Route the cable in a way that it cannot get stuck or squeezed or stretch when the equipment moves.
Instructions about the power outlet of the loader can be found in the operator’s manual of the loader.
5.2.2 Uncoupling
Disconnecting hydraulic hoses:
Before disconnecting the fittings, place the attachment to safe position on solid and level surface. Turn the
control lever of the rear auxiliary hydraulics to its neutral position.
When uncoupling the attachment, always disconnect the hydraulic couplings before
unlocking t
he trailer coupling, 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 rear auxiliary hydraulics control lever (optional extra) 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 rear auxiliary hydraulics control lever of
the loader back and forth before disconnecting the couplings.
WARNING
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 auxi
liary hydraulics control lever is locked on or if the system is
pressurized.
Connecting or disconnecting the hydraulic couplings while the system is
pressurized may lead to unintended movements of the attachment, or ejection of high-
pressure fluid, which c
an cause serious injuries or burns. Follow safe stopping procedure
before disconnecting hydraulics.

15 (28)
5.3 Use
Before starting to work:
Read all safety instructions.
Using the Horse arena harrow:
1. Set the attachment to working position by locking the support wheels (optional extra) in operating
position.
2. Harrow the surface by towing the attachment on the ground with the loader. Move the loader to the
desired direction forwards.
Always drive slowly while operating the Horse arena harrow. Adjust the drive speed according to the
operating conditions and the ground.
Avoid sharp turns while operating the Horse arena harrow.
Lift the nose wheel completely up before using or transporting the harrow. If the nose
wheel is left to low position, it may get damaged.
. ..

16 (28)
5.4 Storage
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.

Never leave the hydraulic connectors
on the ground.

Make sure that the attachment is
secured against all movements during
storage. Lock the roller, if it is not
lowered on the ground for storage.
Never climb on the attachment.
'
Before winter storage, carefully clean the attachment, removing all remains. Touch up the paint where needed
and grease the lubrication points to prevent rust damage.
CAUTION
Crushing hazard - Prevent roller from rolling freely during storage.
Freely rotating
roller can injure hands, especially if children play with it. Prevent rolling of the roller by
lowering it on the ground, or use blocks of wood, or other means to prevent the roller from
rolling during storage.

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5.5 Support wheels (option)
The support wheel kit A36593 can be fitted to make it possible to tow the harrow over longer distances.
To set the wheels to either operating position, use both hands and simultaneously
push the wheel by foot.
Always lock the wheels in either operating mode with the pins provided.
5.5.1 Transport position
Keep the loader stable during transport. Lock the support wheels (if equipped) in transport position as
shown in the figure below.
If the harrow is not equipped with support wheels, it is not recommended to tow the harrow over long
distances, or on hard surfaces. The harrow may get damaged.
Lift the nose wheel completely up before using or transporting the harrow. If the nose
wheel is left to low position, it may get damaged.

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5.6 Mounting accessory (option)
The Horse arena harrow can be
equipped with mounting
accessory A449060 as an
option.
With the lifting kit it is possible
to mount the attachment to the
quick coupli
ng plate of the
loader. The lifting kit also
makes it possible to add
additional weights on the
attachment.
Some materials may require
more weight on the Horse
arena harrow for the best
result. Typically more dense or
easily compacted materials mix
better
and with better finish
when counterweights are
added.
The same counterweights can
also be used as counterweights
on the loader.
5.6.1 Transport with lifting accessory
When driving with the loader,
keep the attachment lifted off
the ground and tilted back
slightly as shown in the adjacent
figure.
WARNING
Risk of tipping over - Keep the loader stable.
Always transport the attachment as low
and close to the ground as possible. Keep the telescopic boom retracted during
transport drive.
. ..

19 (28)
5.7 Hydraulic support wheels (option)
The attachment can also be equipped with hydraulic support wheel kit A37547, in which case the double
acting rear hydraulics outlet must be installed on the loader. The hydraulic fittings of the hydraulic support
wheels system are connected to the rear hydraulic outlet of the loader (optional equipment for loaders).
5.7.1 Using the hydraulic support wheels
600, 700 and 800 series loaders:
The extra outlet is controlled with its own, 2 direction control lever on the right from the driver's seat. See the
loader operator's manual for more information.
Other models:
The loader is equipped with auxiliary hydraulics outlet selection switch for
choosing either the standard, front outlet, or the rear outlet. The same
auxiliary hydraulics control lever is used for controlling the support wheels.
5.7.2 Installation of the hydraulic support wheels
DANGER
Risk of high pressure fluid injection through skin.
Installation includes assembling
hydraulic components. Incorrect assembly or loose f
ittings may cause ejection of high
pressure fluid. Contact Avant service for installation.
. ..

20 (28)
5.8 Extra weights (option)
Some materials may require more weigh on the attachment for the best result. Typically more dense or easily
compacted materials mix better and with better finish when counterweights are added. The same
counterweights (A35957) can also be used as counterweights on the loader.
Fit the counterweights as a pair and
secure them with bolts at both ends.
Max 4 weights can be added in
total (2 each side). Adding more weight can damage the
attachment.