Avantco A35411 User manual

Pressure washer
2021 1
Operator's Manual for Attachment
Pressure washer
Product number:
A35411
English
A445581 2021 1 EN 2020-
www.avanttecno.com

Pressure washer 2021 1

Pressure washer 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 ........................................................................................................................................9
4. TECHNICAL SPECIFICATIONS ....................................................................................................... 10
4.1 Safety labels and main components of the attachment ....................................................................................10
5. ASSEMBLING THE ATTACHMENT................................................................................................. 12
5.1 Connecting and disconnecting hydraulic hoses ..................................................................................................13
6. OPERATING THE ATTACHMENT .................................................................................................. 15
6.1 Safety distance.............................................................................................................................................................16
6.2 Checks before use .....................................................................................................................................................17
6.3 Operator qualification...............................................................................................................................................17
6.4 Use .................................................................................................................................................................................18
6.5 Transport position.....................................................................................................................................................19
6.6 Storage ..........................................................................................................................................................................19
7. MAINTENANCE AND SERVICE ....................................................................................................... 20
7.1 Inspection of hydraulic components .....................................................................................................................20
7.2 Cleaning the attachment...........................................................................................................................................21
7.3 Inspection of metal structures................................................................................................................................21
7.4 Maintenance of pump unit........................................................................................................................................21
8. WARRANTY TERMS .......................................................................................................................... 22

4 (24)
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 (24)
.
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 (24)
2. Designed purpose of use
The AVANT Pressure washer is an attachment that is suitable for use with AVANT compact loaders that are
shown in Table 1. The Pressure washer is easy to take with anywhere with the Avant loader. It can be
connected directly to tap water supply, or water can be taken with the inlet hose from any reservoir.
The attachment can suck water via inlet hose up to 3 meters below the level where the unit is. This is a very
useful feature when taking water from a tank, reservoir, or lake, for example. The attachment is equipped with
a 20 m pressure hose, hose reel, and washing gun. The inlet hose is not delivered with the attachment, and it
must be purchased separately. The pressure washer can also be used to pump other liquids than clean fresh
water. However, dirty water, or other fluid that has abrasive particles, can damage the pump, and will cause
the pump to wear down quickly. The pump must be flushed with fresh water after other fluids have been used.
The Pressure washer 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 - Pressure washer - Compatibility with Avant loaders
Model
220
225
225LPG
313S
320S
420
423
520
523
525LPG
528
530
R20
R28
630
R35
635
640
735
745
750
755i
760i
850
860i
e5
e6
A35411 •- •••••(•)
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.
WARNING
Make sure all instructions are available.
Always keep the water pump manufacturer's
instructions available. The Dynaset user manual of the high pressure water pumps
includes important information about maintenance, service, and other technical matters.

7 (24)
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.
DANGER
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
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 under the attachment or the loader boom - Lower the
attachment firmly on the ground before leaving the driver’s seat.
Make sure that
the attachment is properly supported during any maintenan
ce or inspections. Do not
leave the driver’s seat when the loader boom is lifted. Going under a raised
attachment or loader boom is dangerous, as the boom may lower due to loss of
stability, mechanical fault, or if another person operates the controls of the loader.
Risk of thrown objects - Keep a safety distance of at least 2 metres between a
pressure washer and any person in vicinity.
Keep in mind that the pressure
washer will throw water and other objects at high speed.
Stop the pressure washer if
the
re are persons or fragile objects in the direction of water throwing. Never aim high
pressure water at a person.
Pay attention to the surroundings and any other persons and machines moving in the
vicinity. Pay attention to the contours of the terrain an
d other hazards, such as
branches and trees that can reach to the driver's area, loose rocks, and slippery
surfaces.
Ensure that ventilation is sufficient when operating indoors. Do not operate the loader
in closed spaces regardless of the engine or fue
l type. Exhaust gases may
concentrate to hazardous levels.
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.

8 (24)
WARNING
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.
. ..
DANGER
Risk of crushing -
Going under the loader boom or an attachment can cause
serious injury or death. Never go under t
he loader boom and prevent others from
getting near 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 l
oader. 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.
. ..
WARNING
Hazard of thrown objects -
Keep bystanders away
. Note
that the Pressure washer may
throw sand or other object
s found
in the operating area at high
speed. Always keep a safety
distance of at least 2 metres
between the pressure washer
gun and other persons. Stop the
attachment immediately, if there
are others in the direction of
water jet.

9 (24)
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.
. ..
3.2 Safe shutdown procedure
Safe stopping of the attachment, before going near the attachment:
WARNING
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:
Lower the boom and the attachment on the ground.
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.
Prevent starting of the machine, remove ignition key.
Release water pressure by using the washing gun until there is no stored water
pressure.

10 (24)
4. Technical specifications
Table 2 - Pressure washer - Specifications
Product number A35411
Width: 550 mm
Length: 530 mm
Height: 950 mm
Weight: 73 kg
Water pump type: Dynaset HPW 250/30-40-ST
Type of water inlet connector: BSP 3/4"
Maximum water flow: 30 l/min 25 MPa (250 bar)
Maximum height of water inlet: 3 meter below the unit level
Operating temperatures: 5°C...70°C
Recommended hydraulic flow: 20 - 30 l/min 22,5 MPa (225 Bar)
Maximum input of hydraulic energy: 40 l/min 22,5 MPa (225 Bar)
Compatible AVANT loader models: See table 1 on page
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 information 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 A445603
A46771 A46772
. ..
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 A46772 Crushing hazard -
Do not go under a
raised attachme
nt; stay away from raised
equipment.
3 A445603 Attachment identification plate
. ..
Table 4 - Pressure washer - Main components
1 Frame with Avant quick coupling brackets
2 Washing gun
3 Hose reel
4 High pressure water pump
5 Multi connector holder

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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:
WARNING
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.
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 an
d 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 t
hat 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.

Drive the loader onto the attachment. If your loader is equipped with a
telescopic boom, you can utilise this.

Align the upper pins of the loader’s quick coupling plate so that they are under
the corresponding brackets of the attachment.
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.

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WARNING
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
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 at
tachment on the ground and
secure the locking manually.
WARNING
Risk of falling objects -
Prevent dropping of
attachment.
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.
WARNING
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 comp
atibility 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 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 , 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.
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 auxiliary hydraulics control lever is locked on or if the system is
pressurized. Connecting or disconnecting the hydraul
ic couplings while the system is
pressurized may lead to unintended movements of the attachment, or ejection of high-
pressure fluid, which can cause serious injuries or burns. Follow safe stopping procedure
before disconnecting hydraulics.

14 (24)
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 multi
connector 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 protect
ive 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.

15 (24)
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.
WARNING
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
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.
. ..
WARNING
Risk of burns - Keep clear of hot surfaces.
The unit parts
and hydraulic oil can be hotter t
han 80 °C. Keep clear of hot
surfaces. Wear personal protective equipment.
. ..

16 (24)
6.1 Safety distance
WARNING
Risk of serious injuries - High-pressure water. High-
pressure water jet can cause serious injuries if hitting others
who are close by. Never aim high-pressure water at a person.
WARNING
Hazard of thrown objects - Keep bystanders away.
Note
that the attachment can throw stones, gravel, or other objects
found in the area at high speed. Always keep a safety
distance of at least 2 metres to other persons.
. ..
The minimum safety distance is 2
metres from the pressure washing
gun in the direction of water jet. Do
not let bystanders get any closer
than 2 metres from the attachment.
Stop the attachment if others get
within the safety distance.

17 (24)
6.2 Checks before use
Read all instructions before use. Make sure you have both the Operator's manual of the loader and
the Dynaset User manual of the High pressure water pumps available.
Use the Pressure washer only when the loader is parked and the boom is lowered.
Ensure that during use the Pressure washer is in upright position.
Check the general condition of the attachment and the loader, and check for possible hydraulic oil
leaks. The attachment must not be used, if there is a fault in the hydraulic system of the loader or the
attachment. 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.
6.3 Operator qualification
Anyone who intends to use the attachment must:
Know the intended use of the 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 (24)
6.4 Use
WARNING
Risk of escaping pressurized fluid, increased noise, and equipment damage -
Always check that the input of hydraulic oil is within the recommended range. See
the operator's manual of the loader to see correct settings for the loader.
Using the Pressure washer:
1
Set the attachment to working
position. The Pressure washer is
intended to be
used when it is
lowered on the ground as shown in
the adjacent figure. Always engage
the parking brake of the loader.
2
Connect water supply. See Dynaset
User manual of the High pressure
water pumps, if necessary.
3Start the Pressure washer by tur
ning
the auxiliary hydraulics control lever
to its locking position. Start the
attachment at the driver's seat when
using low engine rpm on the loader.
Adjust loader engine rpm so that
hydraulic flow is within the
recommended range.
4Reel enough hose f
rom the hose
reel and start carefully use the
washing gun by pulling the trigger.
Never aim high pressure water at a
person, make sure that the washing
gun is pointed away from your feet.
Overheating of hydraulic oil decreases power and affects the
service life of the hydraulic
components of both the attachment and the loader. Clean the loader oil cooler core
regularly; refer to the loader manual for more instructions. Poorly performing cooler may
cause the hydraulic oil to overheat also in winter conditions.
Stopping the Pressure washer:
Stop the Pressure washer by means of the auxiliary hydraulics control lever.
High pressure can remain in closed pressure circuit. Release water pressure by pulling the trigger of the
washing gun until the pump has stopped.
Working in cold temperatures:
To prevent the pipes and High pressure water pump from freezing in cold season, the pump and pumping fluid
output line should be dewatered after operation. Detach the intake hose from the High pressure water pump,
and run the pump dry until all water is removed from the water circuit.

19 (24)
6.5 Transport position
Lift the Pressure washer off the ground before
transport drive. Keep the loader stable. Always
transport the attachment as low and close to the
ground as po
ssible. Keep the telescopic boom
retracted during drive.
6.6 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.
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.
Rinse the high pressure water pump with fresh water, if the attachment has been used for pumping other
liquids than clean fresh water.
To ensure the stability of the attachment during storage, lay it down on a pallet so that the quick coupling plate
is easily accessible with the loader, as shown in figure below.
Long-term storage:
Before winter storage, carefully
clean the attachment and release
all water from the system. See page
18.
Use pressurized air for cleaning, if
necessary. Touch up the paint
where needed to prevent rust
damage.

20 (24)
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.
DANGER
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 bo
om may lower unexpectedly during maintenance causing serious injuries from
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.
DANGER
Risk of high pressure fluid injection
through skin -
Release residual pressure
before maintenance.
Never handle hydraulic
components when the hydraulic system is
pressurise
d, 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.