DUUN VM420 User manual

Fire wood processor VM420
Instruction manual
Duun Industrier as
7630 Åsen, Norway
www.duun.no

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Congratulations with your Duun VM420 firewood processor.
All Duun tractor operated machines has been engineered and tested in close cooperation with end
users of our products. This in order to develop reliable and user friendly machines
Please red instructions manual before you start using the machines..
BA
Machine identification
Serial number and manufacturer should be indicated at badge (A)
Register serial No and time of delivery as indicated.
Do always specify serial number every time requesting service for the machine.
The machine has a CE-badge (B) this confirms that the machine has been manufactured in
conformity with: Directive 98/37/EC Mechanical equipment Article 8 Annex 4 and 5
Serial number
Time of delivery (month-year)

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List of content
MACHINE IDENTIFICATION 2
WARRANTY TERMS 9
DELIVERY FORM FOR DUUN CM430 FIREWOOD PROCESSOR 10
SPECIFICATIONS 11
PREPARATIONS BEFORE USE 13
TRANSPORT AND HANDLING BEFORE USE 13
PREPARATION FOR MOVING WITH TRACTOR.13
SECURING BEFORE MOVING 13
HYDRAULIC OIL -QUALITY.14
OIL LEVEL CHECK.14
OIL TEMPERATURE CHECK 14
CONDENSE CHECK 15
DRIVE SHAFT 15
PREPARATION OF THE TRANSPORTER.16
PREPARATION OF THE FEEDING CONVEYOR 16
SETTING OF CUTTING LENGTH 16
SETTING OF SPLITTING LENGTH FROM 60 TO 40CM 17
SETTING OF SPLITTING LENGTH FROM 40 TO 60CM 17
HEIGHT ADJUSTMENT OF THE MACHINE 18
PRACTICAL USE 18
CONDITION 18
START-UP AND SUITABLE ROTATING SPEED –500 –540 RPM 18
MAIN FUNCTIONS –FEEDING –SPEED ADJUSTMENT OF THE FEEDING CONVEYOR 19
ADJUSTMENT OF CUTTING 19
SPEED OUTPUT CONVEYOR 19
HYDRAULIC KNIFE LIFT 20
CUTTING 20
SAFETY HAND OPERATED LOG HOLDER 20
SIDEWAYS ADJUSTMENT OF THE TRANSPORTER 21
JAMMED WOOD MATERIALS 21
CHAIN SHARPENING 22
CHAIN TENSIONING AND ADJUSTMENT OF THE CHAIN LUBRICATION 24
SERVICE AND MAINTENANCE 25
EVERYDAY MAINTENANCE INSPECTION 25
WEEKLY MAINTENANCE 27
LUBRICATION POINTS 28
MONTHLY MAINTENANCE 29
YEARLY MAINTENANCE 29
DECLARATION OF CONFORMITY 30
SAFETY

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All operators, mechanics and the owner must be well acquainted with the instruction in this instruction
manual before the machine is taken into use.
You should always work with care when you employ agricultural machinery. Read and observe the
safety instructions in this binder. Your safety is your responsibility!
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.
The safety of the surroundings
Make sure that no-one not concerned are present in the
area of work. We emphasize as strongly as possible that
only one person is to handle the machine, i.e. operate the
saw chain sword and the splitter. Nobody is to assist the
main operator in the work area - risk of injury!
Never start the machine when there are people or animals
close to the machine or the tractor. Never stand between the
tractor wheels and the machine!
If other persons than the operator of the machine are
present in the risk zone, the operator is to explain the
danger the machine involves!
Personal protection equipment
You should always wear hearing protection and protective
goggles when using the wood machine. Further, you should
use protective footwear and sturdy work gloves during
handling of the machine and the materials.

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Clothing and the drive shaft
Do not work in clothing that may be caught in the moving
parts of the machine (for example scarf, wide coats).
The tractor must be disconnected and the hand brake
activated before the shaft is connected to the tractor’s
power take-off. 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.
Safe connection and use.
Allow nobody to stay between the machine and tractor
when the machine is connected to the tractor. The same
applies during use of the machine. Make sure that the
connection is carried out in a safe manner.
6. 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 great pressure
may penetrate the skin and cause serious infections. See a
doctor is you have had had an injury. Ensure that no-one is
standing close by when hydraulic functions are performed.

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Rotating parts –risk of crushing
The machine’s rotating parts may cause severe
injuries. The same applies to risk of crushing
during operation.
All covers and protective equipment is to be fitted
on the machine during use. The user is responsible
if an accident occurs as a consequence of
defective protection.
Avoid all unnecessary stay in the working area
when the machine is in operation.
Never put your hand in behind the protective
screen even if the saw chain is in back
position.
.
Zero alcohol tolerance
Persons who are under the influence of drink or
drugs must not operate the machine. The same
applies to tired people who do not have full control
over their movements.
Contact with electric wires and similar during
transport.
Be aware that the wood machine may be taller
than the tractor during transport and there is a risk
of contact with electric wires, railroad underpasses
etc!
If the machine has been set up for splitting of 60cm
wood lengths, it should be set back to 40cm before
moving. This is because the machine will protrude
on the right side if it transported in "60cm set-up". If
you choose to move the machine in “60cm set-up”,
you should be very attentive of the fact that there is
a protrusion beyond the width of the tractor on the
right hand side.
Conveyor –conveyor belt
Avoid staying under the transporter when this is
under tension in order to avoid injuries in case of
any uncontrolled downfall during use. Also avoid
contact with the transporter’s moving parts during
use.
.

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Horizontal positioning and tidiness on the
workplace
Always place the machine as horizontally and
steady as possible to secure stable working
conditions.
Keep the workplace as tidy as possible. This
contributes to generally better safety against
unwanted events.
Area of application
The machines are only intended for production of
fire wood from “pure” wood material without any
contaminants. It is not allowed to employ the
machine for other material such as construction
waste and similar with metal parts such as nails,
screws and similar. The same applies for materials
that are polluted with plaster and similar coatings.
The saw chain is only designed for wood materials
without contaminants.
Good lighting –a necessity.
The machine must only be used in daylight that
secures a good overview of the operations –or
with artificial lighting which provides good overview
of the work area.
Good lighting is very important with reference to
safety.
Safe transport
Before the machine is moved, the feeder conveyor
and transporter (both in an up-right position as
outlined in the illustration) are to be strapped to
secure that they do not fall down. The loading strap
has a fixing point at the lower part of the feeding
conveyor and secures the conveyor belt from
falling off during transport.

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17. Safe cutting
Avoid placing your hands close to the saw chain.
This is obtained by consequently using the log
holder A and the handle B to operate it.
For cutting the last log of wood, it is important to
retain a “suitable” length and cut a shorter piece as
the next to last..
You are advised to use the “count-down ruler” for
the last three lengths so that these may be cut to a
somewhat shorter even length than the desired
length.
When you want to cut twiggy or crooked logs, it is
important to make sure that these are securely
placed.
.
Before start-up after maintenance you should check that all tools have been removed and brought
back into place.
Before the machine is elevated or lowered, you should check that no-one is close to or touch the
machine.
If any warning signs are removed during repair or service, new signs must be fitted
immediately!

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Warranty terms
Fire wood processor VM420 has a 12 month guarantee against defects in materials and
workmanship.
Parts that are not originally manufactured by Duun Industrier AS, for example shafts, bearings etc.
are subject to these suppliers’ guarantees and terms.
Parts that are considered to be wear parts are not part of the basis of the guarantee - these have
been specified in a separate survey on the bottom part of this page.
In cases where a repair is considered to be covered by the guarantee, the representative must inform
the supplier’s representatives that the repair is intended executed on the basis of the guarantee.
In this context, the following information must be recorded:
Product name
The product’s serial no. (see the machine identification pp. 6 and 7]
Date of sale
The product owner’s telephone no.
Dealer with address, telephone 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 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.
The guarantee liability assumes that the prescribed maintenance has been carried out.
Duun Industrier reserves the right to modify the design and specifications and/or make alterations
and improvements without notification.
What is not included by the guarantee
The guarantee does not cover economic loss as a consequence of interruptions.
The guarantee does not cover consequential loss due to defects.
The guarantee does not cover defects or damage caused by misuse and use that is not in
accordance with the instruction manual’s specifications and guidelines.
The following parts and material are considered as wearing parts and are not covered by the
guarantee:
.
The chain saw bar
The saw chain
The wood splitter knives
The feeding belt
Oil filter
Hydraulic oil
Filter cartridge for hydraulic oil
Wear parts in splitting mechanism

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Delivery form for Duun VM420 firewood processor
Machine specifications
Model _ _ _ _ _ _ _ _ _ _ _
Serial No.. _ _ _ _ _ _ _ _ _ _ _
Customer details
Machine owner _ _ _ _ _ _ _ _ _ _
Address _ _ _ _ _ _ _ _ _
Aip code. _ _ _ _
Town _ _ _ _ _ _ _ _ _
Hand over of machine
Sales representative and customer have controlled that the machine do not have any transportation damages and that
specified equipment is delivered..
The customer has been instructed how to use the machine:
-How to prepare machine for use from transport position.
-Height adjustment of machine and correct length of pto to reduce strain
-from too steep angle between tractor and processor (page 14 and 18)
-How to control temperature and oil level. (page 13)
-How to control eventual condensation level in oil tank (page 14)
-What is correct pto speed . (page 17)
-The machine functions.
Feed belt: Speed adjustment . (page 18)
Use of ”remote” control
Cutting : Adjustment of saw movement speed and power (page 18)
Sharpening and tightening of chain. (page 21-23)
Adjustment of chain greasing (page 23)
How to use log clamp. (page 19)
Splitting: How to use handle for forced return . (page 20)
Elevation of splitting knives and change og splitting knives (page 19)
How to switch from 40 to 60cm splitting length and vice versa. (page 16)
Conveyor: Speed adjustment . (page 18)
Sideward movement of conveyor. (page 20)
Sales representative and customer have read about service and maintenance (page 24-28).
The customer has been introduced to warranty terms (page 8)
The customer has been introduced to conditions for practical use (page 17)
Part list is available at sale representative.
Place _ _ _ _ _ _ _
Date _ _ _ _ _ _ _
Customers signature Sales representatives signature
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _