Dunsch DU53173BV3 User manual

GASOLINE VACUUM BLOWER
ASPIRATORE/SOFFIATORE CON MOTORE A SCOPPIO
DU53173BV3
Made In China
GB Original instructions
I T Istruzioni originali

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1
DESCRIPTION OF THE SYMBOLS
The use of symbols in this manual is intended to draw your attention to possible
risks. The safety symbols and the explanations that accompany them must be
perfectly understood. The warnings in themselves do not remove the risks and
cannot replace correct actions for preventing accidents.
This symbol, before a safety comment, indicates a
precaution, a warning or a danger. Ignoring this warning
can lead to an accident for yourself or for others. To limit
the risk of injury, fire, or electrocution always apply the
recommendations indicated.
Before any use, refer to the corresponding paragraph in the
present manual.
Complies with European regulations applicable to this
product.
WEAR EYE AND HEARING PROTECTION.
WARNING; thrown objects and loud noise can cause severe
eye injury and hearing loss. Wear eye protection and ear
protection when operating this unit.
Wear protective gloves when using the device.
Danger of injury from flying parts! Always maintain a
sufficiently safe distance. Beware of thrown objects. The
distance between the machine and bystanders should be
at least 15 meters.
Keep dry at all times. Never expose tool to rain.
Risk of poisoning!
Use the appliance only outside, never use it in confined and
bad ventilated areas.
CHOKE CONTROL -FULL. Choke position.
Blowers and blower/vacuums-rotating impeller blades can
cause severe injury.
WARNING: Stop the engine and allow the impeller to stop
before installing or Changing tubes or bag or before
cleaning or performing any maintenance.

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Do not put hands or feet near or under rotating parts.
Stop the engine and remove the spark plug wire before
assembly, maintenance and unblocking debris.
Extremely hot surface. Do not touch a hot muffler, gear box
or cylinder, you may get burned. These parts get extremely
hot from operation and remain hot for a short time after
the unit is turned off.
SAFETY WARNINGS
WARNING!
Safety Warnings Leaf vacuum
Check the work area before using the appliance. Remove any hard objects
such as stones, shards of glass, wires, etc. that could be thrown off, knocked back
or that could otherwise cause injury or damage during appliance operation.
Never use the appliance when the proper equipment is not fitted. For your
protection, use only the recommended adjustable devices to avoid injuries.
Do not use this leaf blower near fire places or BBQ places and open fire, ash
pits, etc. A proper use of the leaf blower contributes to fire spread avoidance.
Do not put any objects on the lance blow openings. Make sure the blown
material is not being blown at persons, animals, glass sheets or solid
objects such as trees, cars, walls, etc. Strong air flow could throw off stones,
dirt or rods or they could be bounced off the ground and injure persons, animals,
break glass sheets or cause other damage.
Never use the appliance to disperse chemicals, fertilizers or other substances. By
this, you will avoid toxic material spread.
Keep children and other persons including animals in a safe distance when using
the appliance.
Minimum safe distance is 15 m.
Wear suitable protective clothing such as sturdy shoes with non-slip sole, robust
long trousers, gloves, safety glasses and hearing protection!
Do not wear loose clothing or jewels. Hear, clothing and gloves must be out of
reach of moving parts as they could get caught by the rotating parts. Do not use
the appliance when barefooted or in open sandals.
We recommend wearing a respirator as dust is produced.
Do not race when working with the appliance. Walk slowly and cautiously.
Provide a safe posture, especially on slopes.

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Do not overreach. Keep proper footing and balance at all times.
Do not use the leaf blower near open windows.
Do not use the appliance in bad weather, especially when there is a risk of storm.
Never point the leaf blower at persons, animals or yourself.
Provide adequate lighting or good lighting conditions when working with the
machine.
Switch the appliance off when it starts abnormally vibrating.
Check all screw and plug-in connections and protective equipment if firm and
tightened properly and whether all moving parts are running smooth whenever
the appliance is to be put into operation.
The protective equipment on the appliance is strictly prohibited to be
disassembled, changed, used in conflict with the designation and it is prohibited
to attach any protective equipment of other manufacturers.
The appliance must not be used if damaged or safety equipment is defective.
Replace any worn-out and damaged parts.
Risk of fire!
Fuel is highly flammable.
Prohibited smoking and open fire using.
Do not store any fuel near the unit.
Keep the fuel in suitable containers only.
The appliance may only be refuelled outdoors and not near open fire or burning
cigarettes.
Emergency procedure
After use, let the unit cool down for at least 5 minutes before refuelling.
Make sure the fuel does not overflow. If the fuel overflows, the engine must not
be started. Remove any dirt from the appliance and prevent any attempt at
ignition until fuel fumes have evaporated.
Replace all fuel tank and container caps securely.
Fuel tank to be emptied outdoors only.
Never keep the unit with petrol in the tank inside a building where petrol
vapours could get in contact with open fire or sparks.

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INTENDED USE
The leaf vacuum is suitable for collecting dry leaves and light garden waste such
as dry grass, small twigs, and dry spruce and pine needles.
Do not use this product in any other way as stated for normal use. Not observing
general regulations in force and instructions from this manual does not make
the manufacturer liable for damages.
TECHNICAL SPECIFICATIONS
Type DU53173BV3
Displacement 173cm3
Motor power 4.0 kW
Engine speed MAX. 3400min-1
Fuel tank capacity 1.5 l
Volumes of oil tank 0.6 l
Air speed 144 km/h
Air volume 2000 m3/h
Sound pressure level 85 dB(A) K=3 dB(A)
Measured sound power level (EN ISO 22868) 100 dB(A) K=3 dB(A)
Guaranteed sound power level(2000/14/EC) 105 dB(A)
Vibration: 6.7m/s2 K=1.5 m/s2
Net weight 42 kg

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LIST OF MAIN PART
Fig.1
1. Handle bar 2. Cable clip
3. Throttle lever 4. Collection bag frame
5. Knob 6. Lower handle bar
7. Air filter 8. Petrol cap
9. Starter handle 10.Silencer
11. Spark plug 12. Engine base
13. Collection bag 14. Adjust height handle
15. Wheel 16. Pulley
17. Front port cover 18. Deck
19. Auxiliary hose 20. Baffle

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ASSEMBLY
1. Mounting the handlebar. Connect upper and lower handles with supplied
screws and knobs.
Fig.2
2. Fitting the collection bag(Fig.3)
Fig.3
OPERATION
Oil level inspection
WARNING! This product is not supplied with oil. However, for
manufacturing reasons it is possible that a small quantity may be left in the
oil tank .
1) Unscrew and remove the oil tank cap.

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2) Gradually add good-quality engine oil (SAE 10W-30, ca. 0,6 l). Allow the oil to
settle.
3) Check the oil level frequently while filling. Wipe the oil dipstick clean; refit
and tighten the filler cap and then remove it again. The oil level must be
within the min / max markings. Add more oil if necessary. Do not overfill.
Fig.4
4) Wipe spilled oil with a soft cloth and reattach the oil tank cap.
Filling with fuel Danger of injury!
Fuel is explosive!
- Turn off and cool the motor down before filling the tank with fuel.
- You must observe all safety instructions relating to handing fuel.
Risk of device damage!
- The device is supplied without motor oil.
- Before operating, you must fill it with motor oil.
WARNING!
- Unscrew the tank cap and remove it. (Fig. 5)
- Pour in the fuel carefully. Unleaded petrol, octane > 90, 2 L max. Avoid
spilling!
- Screw the tank cap on firmly by hand.
Fig.5

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OPERATION
Do not start the machine until it has been completely assembled.
Before switching on the machine, always checking the oil.
Check before use!
Danger of injury!
Do not operate the device unless you did not find any faults. If a part has
become defective, make sure to replace it before you use the device again.
Check the safe condition of the device:
-- Check the machine for leaks.
-- Check the machine for visual defects.
-- Check that all parts of the machine have been securely fitted.
-- Check that all safety machine are in proper condition.
-- Slide the throttle lever to and fro several times to ensure that it is moving
smoothly and correctly.
Danger of injury!
Before starting work, always check the ground and remove all objects which
could be thrown by the device.
Start the Engine
Move the accelerator lever to “ ” position. (Fig. 6)
Fig.6
Grasp starter handle and pull out slowly, until it pulls slightly harder. (Fig.7)

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Fig.7
Pull rope with a rapid full arm stroke （3~5times）until engine runs.
After engine starts running, move accelerator lever to the appropriate position.
(Fig. 8)
Fig.8
Stop the Engine
Move accelerator lever to “O” position. (Fig. 9)
Fig.9
Adjust the height of the suction inlet