DUUN VM450 User manual

VM450 Instruction manual
Duun Industrier as
7630 Åsen, Norway
www.duun.no

2
Congratulations on your Duun VM450 firewood processor.
All Duun tractor operated machines have been engineered and tested in close cooperation with
representative users to produce functionally safe and user-friendly machines.
Please read this instruction manual before using the machine.
Good luck!
Machine identification
Serial number and manufacturer are indicated on badge (A).
Register serial number and delivery time as indicated.
Always specify serial number when requesting service for the machine.
The machine is CE-marked (B). This marking confirms that the machine has been manufactured in
conformity with EU Directive Machinery.
Serial number
Time of delivery (month/year)

3
CONTENT
MACHINE INDETIFICATION 2
SAFETY 4
WARRANTY TERMS 8
DELIVERY FORM OF DUUN FIREWOOD PROCESSOR 9
TECHNICAL DATA 10
TRANSPORT AND HANDLING BEFORE USE 12
PREPARATION FOR MOVEMENT BY TRACTOR 12
TRANSMISSION SECURITY 12
HYDRAULIC OIL QUALITY 13
OIL LEVEL CHECK 13
OIL TEMPERATURE CONTROL 13
CONDENSATION CONTROL 13
POWER TRANSMISSION SHAFT 14
TRANSPORTER PREPARATION 14
FEEDING BELT PREPARATION 15
ADJUSTING THE CAPE LENGHT 15
REFILLING SAW CHAIN OIL 15
PRACTICAL USE 16
CONDITIONS 16
START-UP AND APPROPRIATE SPEED 16
ACTIVATION OF ELETRICAL CONTROL 16
THE MAIN FUNCTIONS-FEEDING-CONVEYOR BELT SPEED REGULATION 17
CUTTING ADJUSTMENT 17
CONVEYOR BELT SPEED 17
HYDRAULIC KNIFE LIFT 18
STUCK MATERIAL 18
ADJUSTMENT OF THE POSITION OF THE SPLITTER 18
CHAIN SHARPENING AND TIGHTENING 19
ADJUSTMENT OF THE CHAIN LUBRICATION 20
SERVICE AND MAINTENANCE 21
DAILY MAINTENANCE 21
WEEKLY MAINTENANCE 22
MONTHLY MAINTENANCE 22
ANNUALY MAINTENANCE 22
USER MANUAL FOR DISPLAY IN VM450 24
START-UP 24
DISPLAY MENU 25
ALARMS 26
DECLARATION OF CORNFORMITY 27

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Safety
All operators, mechanics and the owner must always work carefully with agricultural machinery. Read
and observe safety instructions in this instruction book.
Be particularly aware of warning signs with this symbol, it marks measures
that must be carried out in order to avoid accidents. The symbol appears in
the instruction manual and on warning signs on the machine.
Instruction manual
All operators, mechanics and the owner must be
well acquainted with the instruction in this
instruction manual before the machine is taken
into use.
Safety of the surroundings
Be very careful when other people or animals
are near the machine or tractor. Never stand
between the tractor wheels and the machine!
Protective equipment
Always wear hearing protection and safety
glasses when using the firewood processor.
Furthermore, safety shoes and sturdy work
gloves should be used when operating the
machine and materials.
Clothing and Power transmission shaft
Do not work in clothing that can be pulled into
moving parts of the machine (e.g. scarves, long
coats).
The tractor is disengaged and the handbrake is
applied before the shaft is connected to the
tractor's PTO. The maximum power output
speed is 400 rpm. The drive shafts are always to
be equipped with original protection covers.
Damaged and worn covers are to be replaced
immediately! Make sure that all covers for the
shaft are in good condition and correctly fitted.
Never start the machine when this is not in
order. The locking chains for the plastic covers
are always to be fixed to the appropriate
brackets in order to prevent the covers to rotate.

5
Safe connection and use
Do not allow anyone to stay between the
machine and the tractor when the machine is
connected to the tractor. The same applies
during the use of the machine. Make sure that
the connection is carried out in a safe manner.
Safety in case of interruptions and
maintenance
Remember always to stop the tractor’s engine
and remove the ignition key before you lubricate,
adjust, clean, or carry out repairs. This is to
secure that the tractor does not start before you
have completed the operation.
Hydraulic high fluid pressure
Be careful when you work with hydraulics. Wear
eye protection and gloves. Hydraulic oil under
high pressure may penetrate the skin and cause
serious infections. See a doctor if you have
sustained an injury. Make sure no one is close by
when performing hydraulic functions.
Danger of crushing at marked points
Pay particular attention to the risk of crushing at
points marked for this.
0-promille
People under the influence of alcohol cannot
opperate the machine. The same applies for tired
people who do not have full control over their
movements.

6
Contact with current-carrying cables etc.
during transport.
Please note that the firewood processor can tip
over the tractor during transport and there is a
risk of contact with live wires, railway
underpasses etc.!
Conveyor belt –transporter
Do not stay under the conveyor when it is
tensioned to avoid damage of an uncontrolled fall
during use. Also avoid contact with the
conveyor's moving parts during use.
Horizontal placement and tidiness
Always place the machine as level and stable as
possible to ensure stable working conditions.
Keep the workplace as tidy as possible. This
contributes to generally better security against
unwanted incidents.
Purpose of use
The machines are only intended for the
production of firewood from branched material
without other extraneous objects. It is not
permitted to use the machine for other material
such as construction waste and similar material
with metal objects such as nails, screws or
similar things. The same applies to material
contaminated with plaster and similar coatings.
The saw chain is only intended for materials
without extraneous objects.
The necessity of good lighting
The machine is used only in daylight, which
ensures a good overview of the operations -
otherwise, with artificial lighting, which gives a
good view of working area.
Good lighting is very important for safety
reasons.

7
Safe transportation
Before the machine is moved, the feed belt and
conveyor (both in the folded-up position as
outlined) must be strapped together with a load
strap to ensure that they cannot fall down. The
loading stop has an attachment at the bottom of
the feed belt and secures the belt from falling off
during transport.
Safe cutting
Avoid using your hands near the saw chain. This
is achieved by consistently using the stick holder
A and button B (RED) to operate it.
Before starting up after maintenance, check that all tools have been removed and replaced.
Before raising or lowering the machine, check that no one is near or touching the machine.
If warning signs are removed during repairs or service, new signs must be installed
immediately!

8
Warranty terms
Duun VM450 has 12 months guarantee against defects in materials and workmanship.
Parts that are not originally manufactured by Duun Industrier as, for example, wheels, hydraulic parts,
etc. are subject to these suppliers’ guarantees and terms.
Parts that are considered wearing parts are not included in the warranty - these are specified in a
separate table at the bottom of this page.
In cases where a repair is considered to be included as a matter of warranty, the representative must
inform the supplier's representatives that the repair is thought to be carried out as a matter of
warranty.
The following information must be registered in this connection:
•Product designation
•The product's serial number. (see machine identification p.2)
•Date of sale
•The product owner address, tel. no.
•The seller with address, tel. no.
In case of such a repair, the supplier is presented with a claim within 3 weeks after the repair date.
Replaced parts are to be kept until a decision has been made with reference to the claim and the
replaced parts are to be forwarded to Duun Industrier as for assessment if so required.
As the employment of the product is beyond our control, we may only guarantee the quality and do
not accept liability for the product's general performance.
Warranty liability requires that scheduled maintenance be done.
Duun Industrier as reserves the right to modify the design and specifications and/or make alterations
and improvements without notification.
What is not included in the guarantee:
•The guarantee does not cover financial loss as a result of interruption of operation.
•The guarantee does not cover consequential loss due to defects.
•The guarantee does not cover defects or damage caused by misuse and uses that are not in
accordance with the instruction manual’s specifications and guidelines.
The following parts and materials are considered wearing parts and are not covered by
warranty:
•Chain saw bar
•Chain saw
•Splitting knives
•Feeding belt
•Oil filter
•Hydraulic oil

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DELIVERY FORM OF DUUN FIREWOOD PROCESSOR
MACHINE INFORMATION
Model _ _ _ _ _ _ _ _ _ _ _
Serial no. _ _ _ _ _ _ _ _ _ _ _
Purchase date _ _ _ _ _ _ _ _ _ _ _
CUSTOMER INFORMATION
Machine owner _ _ _ _ _ _ _ _ _ _
Address _ _ _ _ _ _ _ _ _
Item no._ _ _ _
Address _ _ _ _ _ _ _ _ _
DELIVERY OF MACHINE
Seller and customer have together checked that the machine is free of transport damage and that all equipment is
included.
The customer has been made aware of the use of the machine:
Seller and customer have undergone service and maintenance together.
The customer has been made aware of the warranty regulations.
The customer is made aware of the conditions for practical use.
The parts catalog is available from the retailer.
Location _ _ _ _ _ _ _
Date _ _ _ _ _ _ _
Customer signature Sale representatives signature
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

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Technical data
Features:
VM450
Net weight
1450 kg
Heigh transport mode
2540 mm
Width transport mode
2665 mm
Depth transport mode
1470 mm
RPM PTO input
400 rpm
Cutting diameter max
450 mm
Splitting force max
16000 kg
Saw chain drive
Hydraulic
Operation
Joystick
Saw chain
0,404 division 1,6 mm
Cutting length
20-60 cm
Log stopper
Photocell
Splitter
12- piece
Cleaning grate in the
conveyor belt
Yes
Saw chain lubrication
Separate pump
Volume saw chain oil tank
5 litres
Knife lift
Hydraulic
Number of hydraulic
pumps
3
Conveyor
4 meters
Feed belt operation
Hydraulic
Log holder
Hydraulic
Outlet log table
Yes
Output step feeder
Yes
Asseccories
Item number
4- splitter knife
8- splitter knife
16- splitter knife
Triangel utensil fastening
HMV utensil fastening
Log rack manual
Log rack hydraulic

11

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Transport and handling before use
Transport and handling before use
The hull for the VM450 is equipped with a fork
pocket (A) for handling with a forklift or pallet
forks. Please note that a single firewood
processor weighs approximately 1450 kg. Use
lifting equipment designed for such a total weight!
Preparation for movement by tractor
Fold the conveyor together at joint point E. The
conveyor is then pulled to a vertical position
using the winch wire. During this process, the
protective cover is moved at point B. The feeding
table and belt are adjusted to a vertical and
horizontal position by loosening the locking pin at
point G.
Transmission security
Finally, the connection between the feeding table
and the conveyor is secured with a tensioning
strap for this with attachment at points as
illustrated. This is important to ensure that the
feeding belt is kept in place during transport and
that the connection between the infeed table and
the conveyor is properly secured.

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Hydraulic oil quality
The machines' ability to function will mostly
depend on the hydraulic oil being intact. The
biggest dangers to oil quality are:
•Too high a temperature, which is
accompanied by poor lubrication and the
risk of malfunctions and damage to
expensive components such as valves,
pumps and motors.
•Condensation that forms in conditions of
moist air combined with temperature
fluctuations. (the oil tank breathes through
the filter and sucks in air with moisture).
•Condensation in the oil has the same
effect as an excessively high oil
temperature. Condensation primarily
occurs during use in moist air and
temperatures around 0°C. The oil tank is
equipped with a drain plug at the bottom
for changing the oil and checking for
condensation.
Oil level check
The machines are filled with 95 liters of hydraulic
oil from the factory. Recommended oil quality is
ISO VG46 (viscosity group 46). Examples of
such oils are Mobil DTE15m and Statoil
Hydraway HVXA46.
The oil level is checked by observing the level
glass A, which is located in the suction grid for
the hydraulic tank.
Oil temperature control
It is very important to keep control of the oil
temperature Band avoid it exceeding 70
degrees. This can occur under unfavorable
operating conditions, for example when the rpm
is too high during use. Under no circumstances
higher than 400 rpm.
The machine has built-in temperature protection
which means that the hydraulics stop working if
the temperature of the hydraulic oil gets too high.
Stop the machine and let it cool down before
continuing.
Condensation control
The oil tank has drain plug C at the bottom. Gray
oil is an indication of water in the oil. (see page
25)
In addition to this, the hydraulic oil must be
changed every year or after 500 operating hours
(whichever occurs first) to ensure maximum oil
quality.

14
Power transmission shaft
The power transmission shaft is maintained and used in accordance with the instruction manual for it.
To achieve a better operating angle, it is recommended to leave the machine standing alone and
place the tractors at a longer distance and use a longer power transmission shaft during operation.
The need for the length of the power transmission shaft will vary in accordance with the size of the
tractor and the length of the drawbars.
For working angles of 25 degrees and above, a category 6 shaft should be used for durability.
If large angles occur, it may be advantageous to either lower the tractor or raise the machine. It can
be raised with the support legs which are standard equipment mounted in the corners and raise the
machine up to 80 mm.
Make sure the PTO shaft has sufficient length. After any cutting, the profile tubes in the shaft must
overlap each other by half the tube length. Any cutting of the shaft is carried out in accordance with
the instructions for this –the cut point is chamfered inside/outside and the profile tubes are lubricated
with grease.
NB! Too long shaft can lead to spraining of the shaft and risk of overloading the tractor's PTO and the
gearbox in VM450.
Please lubricate the power transmission shaft before use.
The locking chains for the protective covers must always be attached to suitable fasteners to prevent
the covers from rotating.
Transporter preparation
The transporter is prepared by:
1. Loosen the strap attachment
and loosen the tension strap at
the outlined points.
2. The conveyor is deployed by
releasing the winch and the wire
holding it - then the conveyor
falls outwards in a controlled
manner until it is at ground level.
3. Fold out the conveyor to its full
length at the hinge point E.
4. The conveyor is raised to the
desired height by the winch.

15
Feeding belt preparation
Fold the feed belt into place by loosening the locking pin at point Gwhich locks it off.
The band is tightened by adjusting the screws at point H. The band is sufficiently tensioned if it feeds
the wood without slurping. Tightening too hard increases wear on the belt and significantly reduces its
service life.
An indication of proper tightening is when the belt in the middle of the feed table can leave 30-40
millimeters of space - Ref. Illustration 4.
Adjusting the cape lenght
The sheath length is set by loosening the screw
marked Aand moving the photocell to the
desired sheath length.
The cable length can be read off on the rulers
marked Band C. If you place the 28 cm photocell
on ruler B, the cable length will be approx. 30
cm.
Refilling saw chain oil
The machine has a separate container Afor saw
chain oil. The chain is lubricated for each cutting
movement and it is important to refill before the
container is empty. Use ordinary saw chain oil
designed for chainsaws.
If the machine is to be used without being
connected to a hydraulic log table, the passage
hose marked (A) must be connected to the outlet
as shown in the figure. This hose is in the
toolbox.

16
Practical use
Conditions
The machine must not be used until the operator
has carried out the following:
•Has read the instruction manual and
knows how the machine works and
how to control it.
•Has familiarized himself with and
aligned himself with the information
about safety described on pages 4 to 7
of the instruction manual.
•Uses suitable clothing, hearing
protection - safety glasses - safety
shoes - work gloves.
•Do not wear clothing that can be pulled
into moving parts of the machine (e.g.
scarves, wide coats).
If an error occurs in the machine's functions
during use - the machine must not be used until
the error function has been rectified.
Start-up and appropriate speed
The PTO on the tractor is switched on at low rpm
and carefully increased to 400 rpm, which is the
maximum rpm of the PTO.
For the machine to work as well as possible, the
speed must be between 380 and 400 rpm.
At lower speeds, certain functions will get too
little oil pressure.
Allow the machine to run for a few minutes
before starting the hydraulic functions.
Activation of eletrical control
The machine has electrically controlled valves
and safety functions.
Connect the supplied cable to the socket marked
A to the power source on the tractor. If the tractor
does not have a 3-pole connector, this must be
installed or you can use other power sources with
12 volts, for example directly on the tractor's
battery. Use 2.5 square wire when extending the
wire.
When starting the machine or every time the
power is interrupted, the cover (B) of the splitting
cradle must be opened and closed to activate the
electric control of the machine. If the machine's
hydraulics overheat, the electrical functions stop
working. Let the machine cool down. Cover (B)
must be opened and closed and the splitting
function must be reset. See function Enext page.

17
The main functions-feeding- conveyor belt
speed regulation
The material to be cut is fed onto the infeed belt.
The main functions are:
A. Move the feeding belt forward/backward.
B. Operate the cutting blade up and down.
C. Triggering of cutting.
D. Return of feeding belt.
E. Activate and deactivate log holder.
F. Activating and deactivating hatches over
the splitting cradle.
G. Scroll through the LCD screen menu.
H. Forced running of the feeder belt even if
the photocell is triggered.
I. Regulates the pressure on the saw blade.
J. Regulates the speed of the saw blade.
K. Hydraulic regulation of splitting knife
L. Hydraulic regulation of splitting stroke.
M. Hydraulic side swing on conveyor belt.
N. Step feeder output.
O. Speed regulation of the conveyor belt.
Cutting adjustment
To adapt the cutting function as best as possible
to the material, the speed and pressure of the
blade can be regulated.
The speed of the sword's downward movement is
regulated with the wheel marked J.
The pressure on the blade is regulated with the
dial marked I.
Start with low pressure and adjust upwards.
Pressure that is too low can cause the saw bar
not to be able to move all the way down. Too
high a pressure can cause the motor to be
unable to pull the chain and disconnect via the
safety valve.
The steering wheel is marked with + and -.
Turning the steering wheel clockwise increases
the pressure.
Conveyor belt speed
This is regulated with the regulation wheel
attached to the regulation block Oas illustrated.
Choose a speed that suits the purpose -
depends, among other things, on the desired
throw length and the container in which the wood
is to be stored. Make sure that the steering wheel
does not get stuck in the block. Lubricate the
threads with grease after each season.

18
Hydraulic knife lift
The splitting knife is adjusted up and down with
the handle K.
To change the knife, run the knife all the way to
the top. Loosen the bolt that holds the knife in the
lower edge and lift out.
Stuck material
If the splitter is unable to split the wood - the
piston is driven back by moving the joystick
forward C, or open the safety cover marked Bso
that the splitter stops. The wood has to be solved
manually. Close the cover and the cleaver will
automatically return. The cube can be thrown in
for another attempt.
Adjusting the position of the splitter
The stop signal and return signal for the splitter
piston occurs via two solenoid valves. These
contact points can be adjusted by positioning the
solenoid valves on the brackets.
Solenoid valve Aadjusts the stop signal.
Solenoid valve Badjusts the return signal.
It is important that the cylinder does not go all the
way in and all the way out.

19
Chain sharpening and tightening
General
Blunt chains and skewly sharpened chains entail great wear on the saw chain sword and risk of extra
costs and complications.
To avoid this, the Duun VM450 is designed that the saw chain must always be removed from the
machine for sharpening or replacement.
As a starting point, we recommend replacement of the chain or sharpening in equipment designed for
this purpose.
Alternatively, the saw chain can be sharpened according to the standard procedure with a file with a
file template for a 5.5mm chain and a rider gauge. This is to safeguard against faulty sharpening and
complications.
Before any sharpening work is initiated –stop the
machine and the tractor and remove the key to
prevent accidental start during the work.
Always wear work gloves when working with the
chain!
The covers over the saw chain itself and the
cover over the splitter are opened as illustrated.

20
To change the chain, loosen both screws B. The
screw Ais loosened so far that the chain can be
unhooked at the rear for maintenance or
replacement.
To tighten the chain, loosen screws Band tighten
with screw A.
Check the chain tension by pulling the chain in
the middle of the long side of the bar. If you can
stretch the chain 4-5 mm upwards the tightening
is correct.
A new chain loosens more quickly and needs to
be frequently inspected.
File dimension is 5.5 mm
The chain is now available for sharpening with a
round file from both sides. It is very important to
keep the correct shape of the saw teeth as
illustrated. The main point is to use the right size
file and make sure to maintain the right angle on
the edge - i.e. 30-35 degrees. Figure Fshows the
correct shape of a sharpened tooth.
Also remove damages front ha saw bar and turn
the saw bar regularly. This in order to achieve
even wear on both sides.
Adjustment of the chain lubrication
Adjustment of the chain lubrication
The need for chain lubrication may vary with the average thickness of the material.
Open the cover above the hatch marked A. Adjust by loosening the connection and turning the round
eccentric disc (+) to increase the amount of lubrication per stroke or opposite (-) to reduce the
quantity.