Dolmar PB-252.4 User Manual

PETROL BLOWER
SOUFFLEUR À ESSENCE
BENZIN BLASGERÄT
SOFFIATORE A BENZINA
BENZINE BLADBLAZER
SOPLADOR GASOLINA

English / Français / Deutsch
Italiano / Nederlands / Español

PB-252.4

INSTRUCTION MANUAL

(P2~P18)

INSTRUCTIONS D’EMPLOI

(P19~P35)

BETRIEBSANLEITUNG

(P36~P52)

Important:

Read this instruction manual carefully before putting the Blower into operation and strictly
observe the safety regulations! Preserve instruction manual carefully!

Importante:

Lisez attentivement ce manuel utilisateur avant de mettre en route le souffleur et respec­tez scrupuleusement les consignes de sécurité.
Conservez soigneusement ce manuel.

Wichtig:

Lesen Sie diese Betriebsanleitung sorgfältig durch bevor Sie das Blasgerät in Betrieb
nehmen und beachten Sie die Sicherheitsvorschriften genau!
Bewahren Sie diese Betriebsanleitung sorgfältig aul!

MANUALE D’ISTRUZIONI

(P53~P69)

GEBRUIKSAANWIJZING

(P70~P86)

MANUAL DE INSTRUCCIONES

(P87~P103)

Importante:

Leggere con attenzione il manuale prima di mettere in funzione il soffiatore; le norme di
sicurezza vanno rigorosamente rispettate!
Conservare il manuale delle istruzioni per I’uso.

Belangrijk:

Lees altijd eerst de veiligheidsvoorschriften aandachtig door en neem deze in acht voor­dat u de machine in gebruik neemt. Bewaar deze gebruiksaanwijzing zorgvuldig.

Importante:

Lea bien este manual antes de poner el soplador en funcionamiento, y observe estricta­mente las medidas de seguridad. Conserve este manual de instrucciones.

English

Thank you very much for selecting the DOLMAR blower. We are
pleased to be able to offer you the DOLMAR blower which is the result
of a long development programme and many years of knowledge and
experience.
The blower models PB-252.4 combines the advantages of state-of-the­art technology with ergonomic design. They are of light weight handy,
compact and represent professional equipment for a great variety of
applications.
Please read, understand and follow this booklet which refers in detail to
the various points that will demonstrate its outstanding performance.
This will assist you to safety obtain the best possible results from your
DOLMAR Blower.

Table of contents

SYMBOLS............................................................................................ 2

SAFETY INSTRUCTIONS ................................................................... 3

EC DECLARATION OF CONFORMITY .............................................. 6

SPECIFICATIONS ............................................................................... 6

DESIGNATION OF PARTS .................................................................. 7

ASSEMBLY INSTRUCTIONS .............................................................. 8

BEFORE START OF OPERATION ...................................................... 9

OPERATION ......................................................................................11

ADJUSTMENT OF IDLING................................................................ 12

OPERATION METHOD...................................................................... 13

INSPECTION AND MAINTENANCE ................................................. 14

STORAGE.......................................................................................... 16

TROUBLESHOOTING....................................................................... 18

SYMBOLS

It is very important to understand the following symbols when reading this instructions manual.

Page

WARNING/DANGER Fuel (Gasoline)

Read, Understand and Follow Instruction
Manual

Forbidden Emergency Stop

No Smoking First Aid

No Open Flame Recycling

Protective Gloves must be Worn ON/START

Engine-manual Start

Keep the Area of Operation
Clear of All Persons and Pets

Wear Eye and Ear Protection

Keep bystanders away CE-Mark

OFF/STOP

Severing of fingers or hand,
impeller blade

2

SAFETY INSTRUCTIONS

(1)

(2)

(3)

(4)

(5)

15 meters

General Instructions

• To ensure correct and safe operation, the user must read, understand
and follow this instruction manual to assure familiarity with the handling
of the blower (1). Users insufficiently informed will risk danger to them­selves as well as others due to improper handling.

• It is recommended only to loan the blower to people who have proven
to be experienced with blowers.

• Always hand over the instruction manual.

• First-time users should ask the dealer for basic instructions to familiar­ize oneself with the handling of a blower.

• Children and young persons aged under 18 years must not be allowed
to operate the blower. Persons over the age of 16 years may however
use the tool for the purpose of being trained only while under the direct
supervision of a qualified trainer.

• Use blowers with the utmost care and attention.

• Operate the blower only if you are in good physical condition.

• Perform all work conscientiously and carefully. The user has to accept
responsibility for others.

• Never use the blower while under the influence of alcohol or drugs (2).

• Do not use the unit when you are tired.

• Save these instructions for future referral.

Personal Protective Equipment

• The clothing worn should be functional and appropriate, I. e. It should
be tight-fitting but not cause a hindrance. Do not wear jewelry, clothing
or long hair which could be drawn into the air intake.

• In order to avoid head-, eye-, hand- or foot injuries as well as to protect
your hearing the following protective equipment and protective clothing
must be used during operation of the blower.

Pay particular attention to the following regulations

• Clothing must be sturdy and snug-fitting, but allow complete freedom
of movement. Avoid loose-fitting jackets, flared or cuffed pants, scarf,
unconfined long hair or anything that could be drawn into the air intake.
Wear overalls or long pants to protect your legs. Do not wear
shorts. (4)

• Blower noise may damage your hearing. Wear sound barriers (ear
plugs or ear mufflers) to protect your hearing. Continual and regular
users should have their hearing checked regularly. (3)

• Use of gloves when working with the blower is recommended. Good
footing is most important. Wear sturdy shoes with non slip soles. (4)

• Proper eye protection is a must. Even though the discharge is directed
away from the operator, ricochets and bounce backs can occur during
blower operation. (3)

• Never operate a blower unless wearing goggles or properly fitted
safety glasses with adequate top and side protection which comply
with ANSI Z 87. 1 (or your applicable national standard).

Starting up the blower

• Please make sure that there are no children or other people within a
working range of 15 meters (5), also pay attention to any animals in the
working vicinity. Never use the blower in urban areas.

• Before operating, always check that the blower is safe for operation:
Check the security of the throttle lever. The throttle lever should be
checked for smooth and easy action. Check for proper functioning of
the throttle lever lock. Check for clean and dry handles and test the
function of the l-O switch. Keep handles free of oil and fuel.

360°

3

Start the Blower only in accordance with the instructions.

(6)

(7)

(8)

(9)

3 meters

• Resting

• Transport

• Refuelling

• Maintenance

• Tool Replacement

Do not use any other methods for starting the engine (6) !

• Use the blower and the tools supplied only for applications specified.

• Start the blower engine only after the entire tool has been assembled.
Operation of the tool is permitted only after all the appropriate acces­sories are attached.

• The engine is to be switched off immediately if there are any engine
problems.

• When working with the blower, always wrap your fingers tightly around
the handle, keeping the control handle cradled between your thumb
and forefinger. Keep your hand in this position to have your machine
under control at all times. Make sure your control handle (and grip for
vacuum attachment) are in good condition and free of moisture, pitch,
oil or grease.
Always ensure a safe, well-balanced footing.

• Operate the blower in such a manner as to avoid inhalation of the
exhaust gases. Never run the engine in enclosed rooms (risk of suffo­cation and gas poisoning). Carbon monoxide is an odorless gas.
Always ensure there is adequate ventilation.

• Switch off the engine when resting and when leaving the blower unat­tended. Place it in a safe location prevent danger to others, setting fire
to combustible materials, or damage to the machine.

• Never lay the hot blower onto dry grass or onto any combustible mate­rials.

• All protective parts and guards supplied with the machine must be
used during operation.

• Never operate the engine with a faulty exhaust muffler.

• Shut off the engine during transport (7).

• Position the blower safely during car or truck transportation to avoid
fuel leakage.

• When transporting the blower, ensure that the fuel tank is completely
empty.

Refuelling

• Shut off the engine during refuelling (7), keep well away from open
flame (8) and do not smoke.

• Avoid skin contact with petroleum products. Do not inhale fuel vapor.
Always wear protective gloves during refuelling. Change and clean
protective clothing at regular intervals.

• Take care not to spill either fuel or oil in order to prevent soil contamina­tion (environmental protection). Clean the blower immediately after fuel
has been spilt. Allow wet cloths to dry before disposing in properly,
covered container to prevent spontaneous combustion.

• Avoid any fuel contact with your clothing. Change your clothing imme­diately if fuel has been spilled on it (fire hazard).

• Inspect the fuel cap at regular intervals making sure that it stays
securely fastened.

• Carefully tighten the locking screw of the fuel tank. Change locations to
start the engine (at least 3 meters away from the place of refuelling)
(9).

• Never refuel in closed rooms. Fuel vapors accumulate at ground level
(risk of explosions)

• Only transport and store fuel in approved containers. Make sure stored
fuel is not accessible to children.

• Do not attempt to refuel a hot or a running engine.

4

Method of operation

(10)

(11)

(12)

• Use the blower only in good light and visibility. During cold seasons
beware of slippery or wet areas, ice and snow (risk of slipping).
Always ensure a safe footing.

• Never work on unstable surfaces or steep terrain.

• To reduce the risk of personal injury, do not direct air blast towards
bystanders, since the high pressure of the air flow could injure eyes
and could blow small objects at great speed.

• Never insert any foreign object into the air intake of the machine or into
the nozzle of the blower. It will damage the fan wheel and may cause
serious injury to the operator or bystanders as a result of the object or
broken parts being thrown out at high speed.

• Pay attention to the direction of the wind, i.e., do not work against the
wind.

• To reduce the risk of stumbling and loss of control, do not walk back­ward while operating the machine.

• Always shut off the engine before cleaning or servicing the unit or
replacing parts.

Maintenance instructions

• Be kind to the environment. Operate the blower with as little noise and
pollution as possible. In particular check the correct adjustment of the
carburetor.

• Clean the blower at regular intervals and check that all screws and nuts
are securely tightened.

• Never service or store the blower in the vicinity of open flames, sparks,
etc. (11).

• Always store the blower in a well-ventilated locked room and with an
emptied fuel tank.

Observe and follow all relevant accident prevention instructions issued
by the trade associations and by insurance companies. Do not perform
any modifications to the blower as this will risk your safety.

The performance of maintenance or repair work by the user is limited to
those activities as described in this instruction manual. All other work is
to be done by Authorized Service Agents.

Use only genuine spare parts and accessories supplied by DOLMAR.
Use of non-approved accessories and tools means increased risk of
accidents and injuries. DOLMAR will not accept any liability for accidents
or damage caused by the use of any non-approved attachment or acces­sories.

First Aid

In case of accident make sure that a well-stocked first-aid kit is available
in the vicinity of the operations. Immediately replace any item taken from
the first aid kit.

When asking for help, please give the following information:

• Place of accident

• What happened

• Number of injured persons

• Extent of injuries

• Your name

Packaging

The DOLMAR blower is delivered in a protective cardboard box to pre­vent shipping damage. Cardboard is a basic raw material and is there­fore consequently reusable or suitable for recycling (waste paper
recycling).

5

For European countries only

EC Declaration of Conformity

The undersigned, Tamiro Kishima and Rainer Bergfeld,
as authorized by Dolmar GmbH, declare that the
DOLMAR machine(s):

Designation of Machine:
Petrol Blower
Model No./ Type: PB-252.4
Specifications: see “SPECIFICATIONS” table

are of series production and

Conforms to the following European Directives:

2000/14/EC, 2006/42/EC
And are manufactured in accordance with the following
standards or standardized documents:

EN15503
The technical documentation is on file at:

Dolmar GmbH,

Jenfelder Straße 38, Abteilung FZ,

D-22045 Hamburg
The conformity assessment procedure required by Directive
2000/14/EC was in Accordance with annex V.
Measured Sound Power Level: 102 dB
Guaranteed Sound Power Level: 106 dB

14th June 2010

Tam i ro K i sh i ma

Managing Director

Rainer Bergfeld

Managing Director

SPECIFICATIONS

Model PB-252.4
Mass (without blower pipe) (kg) 4.5
Dimension (without blower pipe L x W x H) (mm) 350 × 231 × 368

-1

Max. engine speed (min
Idling speed (min
Engine displacement (mL) 24.5
Fuel Automobile gasoline
Fuel tank capacity (L) 0.52

Engine oil

Engine oil volume (L) 0.08
Carburetor (Diaphragm-carburetor) WALBRO WYL
Ignition system Solid state ignition
Spark plug NGK CMR6A
Electrode gap (mm) 0.7 - 0.8

a

Vibration per EN15503

Sound pressure level average to
EN15503

Sound power level average to
EN15503

hv eq

Uncertainty K (m/s
L

PA eq

Uncertainty K dB(A) 1.4
L

WA eq

Uncertainty K dB(A) 1.4

Notes:

1. Use the oil and spark plug specified by DOLMAR.

2. This specification is subject to change without prior notice.

) 7,800

-1

) 3,500

SAE 10W-30 oil of API Classification, Class SF or higher

(4-stroke engine for automobile)

(m/s2)9.3

2

)0.5

dB(A) 90.8

dB(A) 103.7

6

DESIGNATION OF PARTS

Optional

Vacuum set (Optional)

DESIGNATION OF PARTS DESIGNATION OF PARTS DESIGNATION OF PARTS DESIGNATION OF PARTS

1. Stop switch 8. Fuel Tank 15. Plug Cover 22. Vacuum Pipe

2. Main Handle 9. Fuel Tank Cap 16. Spark Plug 23. Arrow Mark

3. Trigger Lever 10. Muffler 17. Oil Cap 24. Dust Bag

4. Primer Pump 11. Assist Handle 18. Blower Tube

5. Air Cleaner Cover 12. Throttle lock button 19. Blower Nozzle A

6. Choke Lever 13. Screw 20. Blower Nozzle B

7. Starter Handle 14. Protector 21. Elbow

7

ASSEMBLY INSTRUCTIONS

CAUTION : Before performing any work on the blower, always stop

the engine and pull the spark plug connectors off the
spark plug.
Always wear protective gloves!

CAUTION : Start the blower only after having assembled it com-

pletely.

1. ASSEMBLY OF BLOWER PIPES

1) Align grooves in the blower pipe with pegs on the blower
housing and slide the pipe onto housing.

2) Turn the blower pipe clockwise to lock it into place.

3) Place clamp around the opening of the blower pipe. Fas­ten securely with bolt and nut .

2. ASSEMBLY OF VACUUM ATTACHMENT

1) Installing Vacuum pipe (nozzle)

(1) Loosen the screw and open the protector .

WARNING!

When using this machine as a blower, be sure to confirm
that the screw is not loosened at each time of startup. If
the screw is loosened, retighten it.

It is dangerous to operate the machine with the screw loosened.
The operator’s finger or clothing may be caught in the impeller, which will
result in a serious accident.

Caution : The engine will not start unless the protector is closed

completely.

(2) Align the indicated on the vacuum pipe with the “ ” indi-

cated on the blower. Then insert the vacuum pipe into the
blower.

(3) Turn the vacuum pipe until the is aligned with the “ ”

indicated on the blower to lock the vacuum pipe.

(4) Fasten the vacuum pipe securely to the blower with screw

and bracket .

Caution : Do not perform the fastening operation in (4) above if the

blower is to be used in a country or region where the CE mark

is not applicable.
Caution : The screw do not tighten strongly too much.
Caution : The engine will not start unless the vacuum pipe is mounted

WARNING!

Always hold the mounting end of the vacuum pipe when attaching/
detaching the vacuum pipe.

Caution : Do not perform the fastening operation in (4) above if the

Always mount the protector/vacuum pipe in the right way before opera­tion. Operation without the protector/vacuum pipe is dangerous, the
impeller may catch the operator’s fingers or clothes and it can result in
serious injury.

Do not attempt to remove the screw (1) or disassemble the vacuum pipe.
Regulation requires safety distance of at least 900 mm between the
impeller and the top of the pipe.

completely.

2) Installing Elbow and Dust Bag

(1) Open the fastener of the dust bag.
(2) Insert the elbow into the dust bag and take it out through the

bag’s entry.
(3) Install the elbow on the blower.
(4) Place clamp around the opening of the elbow. Fasten

securely with bolt and nut .

blower is to be used in a country or region where the CE mark
is not applicable.

WARNING!

Do not attempt to pick up large wood chips, metals,
glass, stones, liquids, lighted cigarettes, fire works or
the like.

8

BEFORE START OF OPERATION

Figure 1

Figure 2

Lower limit

Upper limit

Figure 3

Upper limit

Lower limit

Oil level indicator

Figure 4

Figure 5

Shelf

Figure 6

Shelf

1. Inspection and Refill of Engine Oil

(1) Perform the following procedure when the engine is cool.

Assure engine is on a flat horizontal surface as shown in Figure 1.

• Inspection: Remove the oil cap. Wipe clean the oil level indicator. Reinstall the oil cap (Figure 2) and remove. Confirm if the oil is

• Refill: After inspection if the oil is below the lower limit add oil through the same opening that the oil cap was removed. See

(2) You may need to refill oil approximately every 10 hours of use (every 10 refuellings).
(3) If the oil changes in color or mixes with dirt, replace the oil. (For the interval and method of replacement, refer to P. 14)

Recommended oil: SAE 10W-30 oil of API Classification, Class SF or higher (4-stroke engine for automobile)
Oil volume: Approx. 0.08 L

Inspection method of engine oil

between the lower or upper limit of the oil indicator.

Figure 4 on how to orient the engine to refill the oil.

NOTE

• If the engine is not positioned as in Figure 1 on a horizontal surface, an inaccurate indication of oil level may occur.

• If the oil is filled above the limit, oil may be contaminated or may catch fire with white smoke.

Replacement of Oil “Oil Gauge”

• Remove dust or dirt near the oil refill port, and detach the oil gauge.

• Keep the detached oil gauge free of sand or dust. Otherwise, any sand or dust adhering to the oil gauge may cause irregular oil circulation or
wear on the engine parts, which will result in troubles.

• As an example to keep the oil gauge clean, it is recommended to insert the oil gauge on its knob side into the engine cover.

After refilling oil

• Wipe with a rag any spilled oil.

9

2. Fuel supply

WARNING

• When refuelling the unit, be sure to observe the following instructions to prevent ignition or fire:

- Fuel supply must be made in a place free of fire. Never bring the fire (smoking, etc.) near the place of fuel supply.

- Stop the engine and allow the engine to cool down before refuelling.

- Open the fuel tank cap slowly. The fuel may be spilled out under internal pressure.

- Take care not to spill the fuel. Any spilled fuel must be wiped clean.

- Carry out fuel supply in a well-ventilated place.

• Handle the fuel with care.

- Fuel sticking to the skin or entering an eye may cause allergies or irritation. When any physical abnormality is detected, consult the medical
specialist immediately.

• DO NOT put oil in the fuel tank.

STORAGE PERIOD OF FUEL

Fuel should be used within a period of 4 weeks, even if it is kept in a special container in a well-ventilated shaded area.
If a special container is not used or if the container is not covered, fuel may deteriorate in one day.

Storage of machine and refill tank

• Keep the machine and tank at a cool place free from direct sunshine.

• Never keep the fuel in a car.

FUEL

The engine is a four-stroke engine. Be sure to use an automobile gasoline (regular gasoline or premium gasoline).

Points for Fuel

• Never use a gasoline mixture which contains engine oil. Otherwise, it will cause excessive carbon accumulation or mechanical troubles.

• Use of deteriorated oil will cause irregular startup.

When refuelling, be sure to stop the engine and confirm that the engine cools down.

REFUELLING METHOD

• Loosen the tank cap a little to release the tank pressure.

• Detach the tank cap, and refuel, discharging air by tilting the fuel tank so that the refuel port will be oriented upward.
(DO NOT fill fuel up to the top of the tank.)

• After refuelling, securely tighten the tank cap.

• If there is any flaw or damage on the tank cap, replace it.

• The tank cap wears out in course of time. Replace it every two to three years.

• DO NOT put fuel in the oil fill port.

10

Figure 1

Stop Switch

Figure 2

Close

Figure 4

Figure 5

Open

Figure 3

Primer pump

OPERATION

1. Starting

WARNING

• Never attempt engine start in a place where the fuel has been supplied.

- If may cause ignition or fire. When starting the engine, keep a distance of at least 3 m.

• Exhaust gas from the engine is toxic. Do not operate the engine in a poorly-ventilated place, such as in a tunnel, building, etc.

- Operating the engine in the poorly-ventilated place may cause poisoning by exhaust gas.

• In case of detection of any abnormality in sound, odor, vibration after start, stop the engine immediately and carry out inspection.

- If the engine is operated without attending such abnormality, an accident may occur.

• Confirm that the engine stops when the stop switch is set to “O” position.

1) When the engine is cold or after refuelling

(1) Set this machine on a flat space.
(2) Set the stop switch to “ I ” position (Figure 1).
(3) Continue to push the primer pump until fuel comes into the

primer pump (Figure 2).

• In general, fuel enters into the carburetor by 7 to 10 pushes.

• If the primer pump is pushed excessively, an excess of gas­oline returns to the fuel tank.

(4) Lift the choke lever to the closed position (Figure 3).
(5) Hold the main handle with left hand to prevent the engine from

moving.

(6) Pull out slowly the starter handle till a certain resistance is felt.

Return the starter handle backward once from this position,
then pull it out with force (Figure 4).

• Never pull the rope to the full extension.

• Once the start knob is pulled, never release your hand
immediately. Hold the start knob until it returns to its original
point.

(7) When the engine starts, open the choke lever (Figure 5).

• Open the choke lever progressively while checking the
engine operation. Be sure to open the choke lever to the full
in the end.

• In cold or when the engine is cooled down, never open the
choke lever suddenly. Otherwise, the engine may stop.

(8) Continue warm-up operation for 2 to 3 minutes.
(9) Warm-up is complete when there is quick engine acceleration

from low rpm to full throttle.

11