DUUN PT280 User manual

PT280 Instruction manual
Duun Industrier as
7630 Åsen, Norway
www.duun.no

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Congratulations on your Duun VPO20.
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 specified on the metal plate (A)
Register the serial number and delivery time on the list below.
Always state the serial number in all inquiries regarding service.
The machine is CE marked (B). This confirms that the machine is designed in accordance with the
EU machinery directive.
Serial number
Time of delivery (month/year)

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CONTENT
MACHINE IDENTIFICATION 2
SAFETY 4
WARRANTY TERMS 7
TECHNICAL DATA 8
MOUNTING INSTRUCTIONS 9
MOUNTING ACCESSORIES 11
PROPELLER TOWER AND ANGLES IN RESERVOIR 14
SERVICE AND MAINTENANCE 15
DISCONNECTION 16
GAS HAZARD 17
DECLARATION OF CONFORMITY 18

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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 manual.
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 start the machine when there are
people or animals close to it, also never stand between the
tractor wheels and the machine!
Be very careful during maneuvering and installing
Ensure that no one is in the pump's operating radius or
"impact area" during installing and maneuvering.
Safe connection and use
Do not allow anyone to stand between the machine and the
tractor when the machine is connected to the tractor. The
same applies when using the machine. Ensure that the
connection is made in a secure manner.

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Power transmission shaft
The tractor is disengaged and the handbrake is applied
before the shaft is connected to the tractor's PTO. Max.
PTO speed is 540 r.p.m. Make sure that there is the same
angle in both joints (ie the pin on the tractor is parallel to the
pin on the gearbox). Different angles cause imbalance,
vibrations and increased wear. The power transmission
shafts must always have protective covers that were
originally supplied. Damaged and worn covers must be
replaced immediately!
During raising and lowering of the rod pump, the power
transmission shaft is dismantled.
Safety in case of interruptions and maintenance
Always remember to stop the tractor engine and remove the
ignition key before greasing, adjusting, cleaning or carrying
out repairs. This is to ensure that the tractor does not start
before you have finished.
Crushing hazard for hands and fingers with rotating
parts
Protective covers must always be fitted except for necessary
maintenance and always with the engine stopped. Pay
particular attention to the risk of crushing at points marked for
this.
Work noise
The noise level during use of the propeller depends on the
tractor's general noise level and the acoustics at the
workplace itself. In certain cases this can exceed 85db. In
such cases, the operator must use hearing protection.
Gas hazard!
During the stirring of slurry, gas evolution occurs which in
strong concentrations can be fatal for humans and
animals. Follow the following safety regulations to avoid
injury! - Avoid air flushing during stirring as far as
possible!- Never go down into a slurry container without
being absolutely sure that all gas has been removed (can
be checked with a gas meter that is submerged with a
string) - Never work alone in a slurry container - be at least
two people and use a safety harness - lifeline. - Use a
fresh air mask! -open doors that the gas has low outlets in
the farm building itself during slurry processing.
Check the state of health in the farm building continuously
during slurry handling!
Avoid any unnecessary stay near the slurry chute and
propeller during stirring.

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Contact with live wires etc. during transport
Be aware that the propeller can stick out over the tractor
during transport and there is a risk of contact with live
wires - railway underpasses during movement!
Safe transport
The propeller has a very long turning radius behind the
tractor. This can cause dangerous traffic situations when
exiting and turning on a busy road. Please be aware of this
and avoid situations such as outlined. During
transportation over long and busy distances, the propeller
should be transported on a tractor trailer or similar.
Steep hazard during manoeuvring
The propeller forms a long weight arm behind the tractor.
This means that during removal from storage it can lift up
the tractor at the front. The problem can be remedied with
front weights or other load at the front of the tractor
(loader). Pay particular attention to this and avoid quick
maneuvers during removal from the slurry storage.
Risk of spraining the power transmission shaft
It is important to adapt the length of the power
transmission shaft to each individual tractor. If it is too
long, the shaft can be pressed completely together and
there is a risk that either the pin on the propeller shaft or
the pin on the tractor will be destroyed.

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Warranty terms
Duun slurry mixer tower 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.
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 based on the guarantee.
In this context, the following information must be recorded:
•Product name
•The product’s serial no. (see the machine identification)
•Date of sale
•The product owner’s address, telephone 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.
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 economic loss as a consequence of interruptions.
•The guarantee does not cover consequential loss due to defects.
•The warranty does not cover damage to galvanization as a result of mixing in acidic liquids.
•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.

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Technical data
Features
Propeller tower
Net weight
Approx.795 kg
Maximum width
2069mm
Width/depth of the tower
1495 mm
The total height of the tower
3429mm
Side swing/ Lateral turn
30 gr to each side
Hydraulic height adjustment
500mm
Height adjustment of support leg
280mm
Gearbox oil amount
1,9 litres
Output speed at 1000 rpm input
1000 rpm

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Mounting instructions
Connection to the tractor
The slurry mixer tower is raised with lifting
equipment such as a crane or front loader.
Check that no one is standing between the
tractor and the machine during connection.
Back the tractor up against the propeller
tower and stop the engine before connecting
the tractor's draw arms to the points marked
Aand the top link to the point marked B
Stabilizing struts/support struts on the tractor
must be used, i.e. locked to ensure the
agitator does not have uncontrolled side
movements while driving.
The power transmission shaft is connected
from the tractor and to the pto pin marked E
on the propeller tower.
It is important to adapt the length of the
power transmission shaft that it does not
remain under tension. The tractor must be
able to raise and lower the tower, as well
as adjust the top strut, without the risk of
damaging the power transmission shaft.
The support legs for the three-point linkage
are adjusted to a suitable height before
proceeding with connection to the tractor.
Connection to propeller and adapter
The slurry mixer tower can be used together
with Duun slurry propeller stirrers or together
with Duun slurry propeller adapter and
propeller stirrers.
When the propeller tower is mounted on a
tractor, a front loader or other lifting device
can be used to lift the propeller agitator up
and together with the tower. If a propeller
adapter is used, this is fitted together with the
propeller before it is lifted up and together
with the tower.
The three points marked Dand Fon the
propeller stirrer must be mounted against the
three points marked C, Dand G on the tower.
The same applies when installing the
propeller adapter. Then first mount the
propeller's three points marked Dand F
against the adapter's three points marked D
and G.
Remember to adapt the length of all power
transmission shafts.

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Rotating shaft
Before connecting the power transmission shaft, ensure the following points.
Make sure that the shaft's protective tubes are intact and that the two halves of the shaft fit freely
into each other. The length of the power transmission shafts must be adjusted carefully, if it is too
long it can damage the bearing in the tractor's PTO or the propeller's bearings. Also ensure good
lubrication of the profile tubes. Read the instruction manual for the power transmission shaft.
Check that the PTO shaft can be rotated by hand to ensure it is not buckling anywhere.
Make sure, all covers for the shaft are in good condition and correctly fitted. Never start the
machine without this being in order! Pay particular attention to the plastic covers on the power
transmission shaft. If these are damaged, they must be replaced immediately! The locking chains
for the plastic covers must always be attached to suitable fasteners on the propeller to prevent the
covers from rotating. The covers are lubricated according to the specified interval.
Mount the PTO shaft on the tractor's PTO with the shear bolt coupling against the propeller
agitator. Safety chain is attached to the propeller to prevent rotation of protective covers.The
power transmission shaft must always have a shear bolt coupling max. 4180 nm. Check that the
power transmission shaft will not sit in tension when the machine is lifted to a maximum. or min.
height. Also note that the angle of the shaft can be too large when using very short shafts -
contact the supplier - importer.

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Mounting accessories
When installing hydraulic height adjustment, slide rails (7) must be installed that the side plates on
the tower bracket do not clamp firmly to th frame.
Installing hydraulic height adjustment, skid rails (7) must be installed that the side plates on the
tower bracket do not clamp firmly to the frame.

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Propeller towers and angles in the reservoir
The sketch is indicated with the maximum extent of the top brace and the tower perpendicular to
the slurry pit.
This gives the maximum allowable angle on the power transmission shaft between the propeller
and the tower, it is recommended to angle the tower to distribute the angular impact between the
shafts when stirring deep in the reservoir.
The maximum angle in point 1 on the sketch is 27 degrees and in point 2 14 degrees.
At distances of less than 1m to the bottom / wall, the stirring effect is lost, it is therefore
recommended to keep a longer distance. This also results in less stress on the junctions in the
power transmission shaft.

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Service and maintenance
First of all
Before cleaning, lubricating, repairing or
adjusting the machine, stop the engine and
activate the handbrake and remove the key
during work. Pay special attention to safety
during maintenance work, park the machine
in accordance with specified safety rules.
Subsequent inspection of screw
connections. Screws - nuts - nipples and
bolts on the machine must be tightened after
two hours of operation.
Clean after use
Power transmission shaft
When the wide-angle shaft works with fixed
angle, the lubrication interval should be 2-4
hours to ensure the shaft has
sufficient supply of lubricating grease.
Interval: Every 2-4. operating hours.
Maintained in accordance with the attached
instruction manual. Please contact
supplier if this is missing
Grease quality: Good quality universal
grease.
Lubrication points
The lubrication points marked A are lubricated when the hydraulic height adjustment is fitted.
Lubrication interval: 50 operating hours.
The lubrication points marked B are lubricated when the hydraulic lateral adjustment is fitted.
Lubrication interval 50 operating hours.
Gearboxes
The gearboxes have oil change intervals. The first change must take place after 50 operating
hours. Later every 500 operating hours or every other year.
Manufacturer: Gardini Oil quantity: 1.3 litres
The lower gearbox is drained from the plug marked A. Filling the plug marked B
The upper gearbox must be sucked out of the oil through the upper plug marked C
Can also lay the tower down on its side and drain the oil through the plug marked.

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Disconnection
This happens in the opposite order of connection.
Working on the machine and the PTO shaft, the power supply to the tractor must be disconnected.
The machine must be placed on a level surface.
The power transmission shaft must be disconnected and hung on a hook attachment.
Locking bolts for drawbars released.
The machine is now disconnected and can be left.

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Gas hazard
1. Measures and points in connection with slurry gas.
2. Extraction fan in the basement contributes to negative pressure and extracts the gas.
3. If there is an open connection between the cellar and the animals housing, the grates can
be covered with plastic to contribute to negative pressure when an extraction fan is used. A
gas-tight connection between the animals housing and the basement provides greater
security, especially when combined with an extraction fan in the basement.
4. Stir under wind - if possible with open windows and doors and closed gate.
5. If the discharge from stirring flows into the surface of the slurry storage, strong gas
development occurs - especially in the starting phase. This is due to mixing of air and slurry
mass.
6. Open doors in the barn and the gas will have a low outlet in the farm building itself.
7. Use a gas meter at all times in the animal rooms during slurry pumping. We believe this is
absolutely necessary regardless of the type of pump and whether or not you have a tight
connection.
8. Avoid unnecessary stay near the shaft and propeller during slurry release/stirring.
We therefore recommend the IBT article (Department of Technical Sciences ÅS/NLH) no.
33/87 "measures against slurry gas poisoning" for more details.
9.Never stir in calm and windless weather!
10.Ensure proper ventilation in animals housing. Let all fans run at full blast, remember, all
doors and windows must also be opened.
11.Make sure that ventilation fans do not draw air from the pump inside. If there are openings
in the gate or pump sump and the wind direction blows against these, slurry gas can be
forced from the basement up into the barn.
12.Do not stand near the filling opening of the transport tank during filling, or in the pump pit
during stirring.
13.Never enter animals housing where there may be suspicion of slurry gas without a gas
mask with gray filter B. Remember that there must be enough air present even when you
use a mask!
14.Never go down into a slurry cellar or tanker without fresh air equipment.
15.If possible, agitation should be carried out when there are no animals inside.
16.Stir gently. Remember that new equipment can cause the effect to increase so that the
stirring becomes more powerful and the risk of a gas accident increases.
Points 9-16 ref. Agriculture's HSE service.
www.lhms.no

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