Avantco 650 User manual

Log splitter 650
2021 1
Operator's Manual for Attachment
Log splitter 650
Product number A443168
English
A446542 2021 1 EN 2020-
www.avanttecno.com

Log splitter 650 2021 1

Log splitter 650 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 Safe shutdown procedure ........................................................................................................................................9
3.2 Personal protective equipment...............................................................................................................................9
4. TECHNICAL SPECIFICATIONS ....................................................................................................... 10
4.1 Safety labels and main components of the attachment ....................................................................................11
5. ATTACHING THE ATTACHMENT ................................................................................................. 13
5.1 Connecting and disconnecting hydraulic hoses..................................................................................................14
6. INSTALLING HYDRAULIC BLADE ADJUSTMENT....................................................................... 16
6.1 Qualification requirements for installation work:..............................................................................................16
6.2 Safety instructions for hydraulic assemblies ........................................................................................................17
6.3 Tightening hydraulic fittings .....................................................................................................................................18
6.4 Installing the hydraulic blade adjustment..............................................................................................................19
6.4.1 Hydraulic blade adjustment - Main components .......................................................................................19
6.5 Electric connection ....................................................................................................................................................21
6.5.1 To connect the electric harness of the attachment to the loader........................................................21
7. INSTRUCTIONS FOR USE ................................................................................................................ 23
7.1 Safety distance.............................................................................................................................................................24
7.2 Checks before use .....................................................................................................................................................24
7.2.1 Operator qualification ......................................................................................................................................25
7.3 Operation.....................................................................................................................................................................25
7.3.1 Using the log splitter.........................................................................................................................................25
7.3.2 Adjusting the blade height ...............................................................................................................................27
7.4 Transport position.....................................................................................................................................................28
7.5 Storing the attachment .............................................................................................................................................28
8. MAINTENANCE AND SERVICE ....................................................................................................... 29
8.1 Inspection of hydraulic components .....................................................................................................................29
8.2 Inspection of metal structures................................................................................................................................30
8.3 Cleaning the attachment...........................................................................................................................................30
8.4 Lubrication ...................................................................................................................................................................30
8.4.1 Slide pads..............................................................................................................................................................30
8.5 Splitting wedge ............................................................................................................................................................31
8.5.1 Maintenance of the splitting wedge...............................................................................................................31
8.6 End of life disposal......................................................................................................................................................31
9. WARRANTY TERMS .......................................................................................................................... 32

4 (34)
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 (34)
.
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.
Th
is 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 (34)
2. Designed purpose of use
The AVANT Log splitter 650 is an attachment that is suitable for use with AVANT compact loaders that are
shown in Table 1. The attachment is intended to be used for splitting firewood, especially larger logs. The Log
splitter 650 is intended to be used by one person at a time straight from the operator's seat.
The splitting is operated by a hydraulic cylinder, which presses the wood against the splitting wedge. The
splitter returns the cylinder after the wood has been split. The height of the splitting wedge is adjustable to split
the wood into halves instead of quarters. Hydraulic adjustment A443834, as well as 6 way blade A443782 for
larger logs are available as options.
The Log splitter 650 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 - Log splitter 650 - Compatibility with Avant loaders
Avant
220 series 2
225
225LPG
313S
320S
320S+
419
420
520
R20
423
523
525LPG
R28
528
530
630
R35
635
640
735
745
750
755i
760i
850
860i
e5
e6
A438282 - (•) •••••••
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.

7 (34)
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 t
o keep the centre of gravity low,
and keep the telescopic boom retracted during driving.
Risk of crushing - The log splitter must be used by only one operator at a time.
Always keep in mind that the strong cylinder and sharp splitter blade can cause
se
rious injuries if not handled properly. The operation of the log splitter creates a
crushing hazard; do not let others near the attachment when it is in use. Keep a
safety distance of minimum of 10 meters.
Risk of injuries from flying debris - Strong splitter operates with high force.
Splitter blade that operates with high force can cause a hazard of flying debris. Do
not let bystanders stand closer than the safety distance of 10 metres from the
machine. Stop the attachment if others get within the safety distance.
Risk of tipping over - Keep loads close to ground while driving. Carrying heavy
loads can shift the centre of gravity of the loader and lead to tipping over of the
loader. For the best stability always transport loads as low and close to th
e loader as
possible, with the telescopic boom completely retracted, to keep the centre of gravity
low.
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 i
ntended 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.
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.

8 (34)
WARNING
Keep the loader articulation in straight position when handling heavy loads. When
turning the articulation, the loader may tilt forward.
Make sure that the surface can bear the total load. Also follow the correct tyre
pressure settings.
Shut down the loader and place the attachment to a safe position as shown in Safe
stopping procedure before any cleaning, maintenance, or adjustments.
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, loose rocks, and slippery
surfaces.
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. Neve
r go
under the 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 contr
ols 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 (34)
3.1 Safe shutdown procedure
Safe stopping of the attachment, before going near the attachment:
WARNING
Alway
s 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.
3.2 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 cycl
e. 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.

10 (34)
4. Technical specifications
Table 2 – Log splitter 650 - Specifications
Product number A443168
Max. log length: 660 mm
Max. blade speed: 0.26 m/s
Dimensions (L x W x H): 304 x 1837 x 853 mm
Weight: 118 kg
Minimum operating temperature: -25 °C
Maximum splitting force: 7,6 tons
Recommended input of hydraulic
energy: 20-30 l/min, 20 MPa (200 bar)
Maximum input of hydraulic energy: 40 l/min, 22,5 MPa (225 bar)
Compatible AVANT loaders: See Table 1, Designed purpose of use
Options
Hydraulic blade adjustment A443834
6 way blade A443782

11 (34)
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.
. ..
A46771 A46772 A46749 A46797 A46803
A447611
Attachment identification plate
A447207
. ..
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 (34)
Table 3 - Decal locations and warning messages
Decal Warning message
1 A46771 Misuse hazard - Re
ad instructions before
use.
2 A46772 Crushing hazard -
Do not go under a
raised attachment; stay away from raised
equipment.
3
A46803
Crushing hazard, moving components.
Keep clear of moving components.
4
A46749
Severing hazard, sharp and strong
blad
es. Follow safe stopping procedure
before going near the attachment.
5
A46797
Crushing hazard in the reach and swing
area of the attachment, keep bystanders
away from danger area.
6
A447611
Beware of thrown objects; keep a safe
distance of 10 meters fr
om the
equipment.
7
A447207
Attachment identification plate
. ..
Table 4 - Log splitter 650 - Main components
1 Frame with Avant quick coupling brackets
2 Cutting blade hydraulic cylinder
3 Carriage
4 Splitting wedge
5 Multiconnector holder
6 6 way blade (Optional extra)
7 Hydraulic blade adjustment (Optional extra)
8
Selector valve for hydraulic blade adjustment
(Optional extra)

13 (34)
5. Attaching 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 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 and the electric cables are positioned so
that they will not get in between the coupling p
late 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 equi
pped 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.

14 (34)
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 attachment 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 attac
hment
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 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 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.
WARNING
Risk of movement of the attachment and ejection of hydraulic oil -
Never connect
or disconnect quick c
ouplings 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 hydraulic 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.

15 (34)
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.
Tapered JIC-type fittings:
Lubricate the inner surfaces and threads of the fittings.

A JIC type fitting is not tightened only by torque and it will not need a lot of force at
any point when tightening. Overtightening or misalignment will break the fitting.

Turn the manually as far as possible, and then lightly with tools ensuring that the
fitting is threaded properly. When noticing clear increase in needed force, tighten
fitting to its final tightness by turning only 1/3 to 1/2 turns using tools.
After tightening, try to twist the hydraulic hose manually, the fitting should stay firm.
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 (34)
6. Installing hydraulic blade adjustment
The Log splitter 650 can be equipped with
hydraulic blade adjustment, and is equipped
with necessary fastening points and holes for
installation of hydraulic hoses.
With the hydraulic blade adjustment, the Log
splitter 650 can be used for spl
itting of different
size of logs without leaving the driver's seat.
The hydraulic blade adjustment kit A443834
includes all necessary components needed in
installation.
Hydraulic blade adjustment kit A443834 (optional
equipment)
6.1 Qualification requirements for installation work:
Knowledge and skills about hydraulic assemblies are required for making the installation. It is recommended
to leave the installation of hydraulic components to qualified service technicians. The manufacturer or it’s
representative are not responsible for damages, losses or injuries resulted from incorrect or incomplete
installations. Contact your nearest Avant dealer or service point, if you have any additional questions or
require installation services.
DANGER
Risk of high pressure fluid injection through skin.
Installation includes assembling
hydraulic components. Incorrect assembly or loose fittings may cause ejection of high
pressure fluid. Follow carefully all safety procedures regarding hydraulic assemblies and
all given instructions.
The instructions given in this chapter are intended for qualified service technicians or
individuals with training and experience about hydraulic assemblies.
WARNING
Risk of serious personal injury. The safety procedures concernin
g hydraulic
assemblies apply both when installing new components or when modifying existing
hydraulic systems. The following installation instructions include the necessary
information needed in installation, but installation or modification work are allow
ed only if
the person doing them can perform them safely.
The following safety procedures and general safety principles regarding hydraulic
systems must be followed. Contact your Avant dealer or service point for more
information or installation services.
Protect the environment from leaking of hydraulic oil and prevent oil from draining on the
ground. Keep any loosened hydraulic hose in an upright position or plugged, so that they
will leak as little as possible.

17 (34)
Clean the equipment thoroughly before starting the installation and make sure that i.e.
dirt, dust or water will not enter the hydraulic components or the hydraulic oil. Keep the
protective covers in place until the components can be installed directly. Follow safety
procedures and wear proper personal protective equipment.
6.2 Safety instructions for hydraulic assemblies
High-pressure ejection of fluid may penetrate skin and cause serious injuries:
DANGER
Risk of high pressure fluid injection
through skin - High-
pressure ejection of
fluid may penetrate skin and cause serious
injuries.
Before handling hydraulic components, make
sure that the hydraulic system of the
attachment and the loader are completely
depressurized. Never handle pressurized
fittings.
Never hold your hand tightly a
round or near a
fitting when tightening or opening it, or when
searching for leaks. Use a piece of cardboard
to find leaks.
Seek medical attention immediately in case
hydraulic fluid is injected through the skin. Also
general skin contact with the oil can be
harmful. Always wear protective gloves, safety
goggles and protective clothing.
Before handling hydraulic assemblies:
1.
Allow the hydraulic systems of the loader and of the attachment to cool down
completely before any work on hydraulic systems.
2.
Make sure that the loader boom or any other part of the attachment can’t move
causing crushing or pinching hazards:

Lower the loader boom to its lower position and lower the attachment firmly on
the ground. For the best stability, keep the attachment locked on the loader.

Set all moving components to a position where they are not supported by
hydraulic cylinders.
Use additional supports or lifting equipment as needed.
3. Shut down the loader engine.
4. Move the auxiliary hydraulics control lever to its
extreme positions several times to
release residual pressure.
5.
Uncouple the multiconnector or quick couplings from the auxiliary hydraulics of the
loader to prevent draining of hydraulic oil.

18 (34)
6.3 Tightening hydraulic fittings
Tighten the fittings carefully according to given instructions and safety procedures. Keep in mind that over
tightening will break a fitting. Tighten basic fittings carefully with hand tools using moderate torque. The elbow
fittings should be tightened at last, after hoses have been fitted to their clamps.
1. Allow the hydraulic systems of the loader and of the attachment to cool down completely before any
work on hydraulic systems.
2. Make sure that the loader boom or any other part of the attachment can’t move causing crushing or
pinching hazards:
3. Lower the loader boom to its lower position and lower the broom firmly on the ground. For the best
stability, keep the attachment locked on the loader.
4. Shut down the loader engine.
5. Move the auxiliary hydraulics control lever to its extreme positions several times to release residual
pressure.
6. Uncouple the multiconnector or quick couplings from the loader to prevent draining of hydraulic oil.
Test to find any leaks
DANGER
Before checking for leakages, or going near any hydraulic fitting,
to avoid possible ejection of pressurized hydraulic oil:
Shut down the loader engine
Depressurize the hydraulic system completely

Wipe the hydraulic components clean to find leaks more
easily.
Place pieces of cardboard around the fittings to detect leaks.
Start t
he engine. While running on idle, operate the auxiliary
hydraulics control lever briefly a couple of times. Shut down
the engine, depressurize the hydraulics, and check for any
sign of leak. Tighten if necessary.
Repeat the test by gradually increasing eng
ine rpm and
operating time. Use both directions of the auxiliary hydraulics
control lever.
DANGER
Risk of high pressure fluid injection through skin -
Test the tightness of the
hydraulic fittings carefully. Use idle rpm when starting the first time
and keep a safe
distance due to the risk of hydraulic fluid ejection. Shut down the loader and release the
residual pressure before checking for leaks. Remember to use and wear protective
equipment.
DANGER
Risk of high pressure fluid injection through skin -
Never test the tightness of the
hydraulic components by placing hands near the fittings.
Never tighten a
pressurized hydraulic fitting, since the fitting may break and the released oil may cause
serious injuries.

19 (34)
Check the routing of hoses and movements of the attachment
After tightening the hydraulic components, test the movements of the attachment thoroughly. Check that the
hydraulic hoses cannot get stretched or pinched in any position of the loader boom or the attachment, and
check that the hoses are not in contact with sharp edges.
After thoroughly checking that the hoses are connected and fittings tightening, check the tightness of the
fittings as described below. The hydraulic system will de-air itself when using the auxiliary hydraulics of the
loader.
6.4 Installing the hydraulic blade adjustment
To install the hydraulic blade adjustment, follow the instructions in the following chapters.
WARNING
Pinching and crushing hazard -
Make sure any part of
attachment cannot move.
Make sure
the attachment is securely lowered on the
ground.

Shut down the loader engine and set the moving
components so that they will not cause hydraulic pressure to
the system.

Any part of the attachment must not be supported only by
hydraulic pressure or hydraulic cylinders.

Do not loosen any fitting if any part of the attachment might
move as a result.
Use additional supports as necessary.
6.4.1 Hydraulic blade adjustment - Main components
Table 5 – Hydraulic blade adjustment
1. Splitting cylinder
2. Blade adjustment cylinder
3. Selector valve
4. Electric connection
5. Multi connector for hydraulic
pressure / return
.

20 (34)
Fitting the hydraulic components:
1. Pre-assemble the selector valve at a clean location. The components are oily for storage. L
eave the
fittings loose and keep the screws ready.
Table 6 - Component list - Selector valve assembly
Part Name
A (3) Selector valve
B Fittings for hydraulic adjustment
cylinder
C Fittings for splitting cylinder
D Fittings for multi connector
2.
Disconnect the splitting cylinder (1) hoses from near the hose clamp at the quick attach plate and loosen
the clamps. Also remove the connector nipples from the hoses.
3. Fix the cylinder of the hydraulic adjustment (2) as shown in the figure below.
4.
Fit the hydraulic hoses to the the
cylinder of the hydraulic adjustment
(2); note the seals shown in the
adjacent figure.
5.
Bolt the selector valve (3) to the
holes of the quick coupling plate.
6.
Connect the hoses as shown in figure
in Table
5. Note the tightening
instructions of hydraulic fittings
shown below.
7.
Connect the first part of the electric
harness (4) to the selector valve (3),
and pass the cable within the
protective plastic spiral of hydraulic
hoses so that the connector will
reach the connector of the loader,
along with the hoses.