PRORUN PHB2444 Handheld Blower Instruction Manual

Operator’s Manual
HANDHELD BLOWER
MODEL: PHB2444

PHB2444 Handheld Blower

Before operating, read the instructions.

IMPORTANT – READ CAREFULLY BEFORE USE

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WARNING: To reduce the risk of injury, the user must read and understand the Operator’s Manual before using this product. Save these instructions for future reference.
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Version: B- Issue Dale: 2023/03/31

HOW TO READ THE MANUAL
Certain paragraphs in the manual contain particularly significant information and are marked with various levels of highlighting with the following meaning:
NOTE or IMPORTANT
These give details or further information on what has already been said and aim to prevent damage to the machine or cause other damage.
WARNING
Non-observance will result in the risk of serious injury or death to oneself or others.

GETTING TO KNOW MACHINE

MACHINE DESCRIPTION AND USAGE
This machine is a portable gardening device fitted with an engine and, more precisely, a blower/suction device for DIV use.
It basically consists of an engine that activates a rotor which is able to produce a high-speed air flow.
When the accessory tools are fitted, the air flow can be regulated to operate in both blower and suction mode.
Intended use
This machine was designed and manufactured for:

• The movement and accumulation, by blowing, of leaves, grass, and debris of various limited weight and modest dimensions.
• Any other use differing from the ones mentioned above could be hazardous, harm people and/or damage things and the machine.

User types
This machine is intended for use by consumers, i.e., non-professional operators. The machine is intended for “DIV” use only.
Improper use
The machine must not be used for accumulation of inflammable or explosive products, hot embers or combustion material without a flame, lit cigarettes, pieces of glass, sharp objects, metal objects, stones, and any other object that could be dangerous to the operator and others.
Examples of improper use may include, but are not limited to:

• Aiming the air shot towards persons and/or animals.
• Allowing an object to enter the suction grid.
• Using the machine without the accessories specifically supplied by the manufacturer for specific uses, or use of accessories in a way not intended in these instructions.
• Use of the machine by more than one person.

SYMBOLS ON THE MACHINE AND MACHINE COMPONENTS
Your machine must be used carefully. Symbols have been placed on various parts of the machine to remind you of the main precautions to be taken.
Their meanings are explained below. Please read all safety regulations in this manual.
Replace all damaged or illegible labels.

| (a). Operate the engine switch
Flipping the switch to the “O” position immediately stops the engine.
“0” Stop, “I” Start
---|---
| (b). Warning! Danger. The failure to use this machine correctly can be hazardous for oneself and others. Read the instruction manual before using the machine.
| (c). Keep all persons away from the work area while using.
| (d). If you are using the machine every day in normal conditions, you can be exposed to a noise level of 85 dB (A) or higher. Wear safety glasses and hearing protection.
| (e). Wear gloves and protective footwear!
| (f). Danger of dismemberment! Never use the machine with the grille open.
| (g). Guarantee A-weighted emission noise power lever.
| (h). Fuel mixture tank.
| (i). Close the choke.
| (j). Open the choke.
| (k). Adjustment of carburetor.
“H” High speed adjustment, “L” Low speed adjustment
| (I). Engine speed continuously variable.

Components and Controls

1. Engine
2. Throttle setting device
3. Engine switch
4. Throttle trigger
5. Spark plug
6. Starter handle
7. Primer blub
8. Choke knob| 9. Intake grille
10. Upper handle
11. Air filter screw
12. Fuel tank cap
13. Lower handle
14. First blow tube (curving)
15. Second blow tube (round end)
---|---

SAFETY REGULATIONS

This machine is extremely noisy, and operators must wear acoustic protection equipment.
A) TRAINING

1. WARNING! Read these instructions carefully before operating the machine. Become acquainted with the controls and the proper use of the machine. Learn how to stop the engine quickly.
2. Never allow children or people unfamiliar with these instructions to use the machine. Local laws can restrict the minimum age of the operator.
3. Never use the machine if the user is tired or unwell, or has taken medicine, drugs, alcohol, or any substances which may slow their reflexes and compromise their judgement.
4. Bear in mind that the operator or user is responsible for accidents or unexpected events occurring to other people or their property.
5. If the machine is sold or lent to others, make sure that the recipient looks over the user instructions contained in this manual.

B) PRELIMINARY OPERATIONS

1. Always wear adequate clothing which does not hamper movements when using the machine.
   • Always wear slim-fitting protective clothes, anti-vibration gloves, protective goggles, half-mask respirator, protective earplugs, and anti-shear safety boots with non-slip soles.
   • Never wear scarves, shirts, necklaces, or any hanging or flapping accessory that could catch in the machine.
   • Tie your hair back if it is long.

2. WARNING: DANGER! Petrol is highly flammable.
   • Keep the fuel in containers which have been specifically manufactured and approved for such use.
   • Add fuel using a funnel. Add fuel only outdoors. Do not smoke during fueling and at any time fuel is handled.
   • Slowly open the fuel tank to allow the pressure inside to decrease gradually.
   • Add fuel before starting the engine. Never remove the tank cap or add fuel while the engine is running or when the engine is hot.
   • If you have spilled fuel, do not attempt to start the engine. Move the machine away from the spillage area and avoid creating any source of ignition until the fuel has evaporated and fuel vapors have dissipated.
   • Always replace the tank and fuel container caps and tighten securely.
   • Immediately clean up all traces of fuel spilt on the machine or on the ground.
   • Never start the machine in the same place you refilled it with fuel. The engine must be started in an area at least 10 feet ( 3 meters) from where you refilled the fuel tank.
   • Make sure your clothing does not come into contact with the fuel. In the event that your clothing has spillage, change your clothes before starting the engine.

3. Replace faulty or damaged silencers.

4. Before using the machine, carry out an accurate inspection of the machine’s functionalities, in particular:
   • The throttle trigger must move freely. It must not require excess force to activate and should return automatically and rapidly back to the neutral position.
   • The engine stop switch must easily move from one position to the other.
   • The electric cables and in particular the spark plug cable must be in perfect condition to avoid the generation of any sparks. In addition, the cap must be correctly fitted on the spark plug.
   • The machine handgrips and protection devices must be clean and dry and well fastened to the machine.
   • The guards must never be damaged.
   • The rotor must never be damaged.
   • When used as a vacuum, the bag must never be damaged.

5. Thoroughly inspect the whole work area and use a rake or yard brush to manually loosen debris. Remove anything that could be projected by the machine (when used as a blower) or be a hazardous source (stones, branches, iron wire, bones etc.)

C) DURING USE

1. Do not operate the engine in a confined space where dangerous carbon monoxide fumes can develop.

2. Work only in daylight or with good artificial light in good visibility conditions.

3. When working in dry dusty soil conditions, it is recommended to moisten the surface slightly.

4. Try not to cause any disturbance. Use this machine at reasonable times of the day only (not early morning or late evening when the noise could cause disturbance).

5. Do not mount equipment or accessories on the machine not foreseen or approved by the manufacturer.

6. Never use the machine:
   – Without mounting all the accessories foreseen for each use.
   – When people, especially children or pets are nearby.
   – In confined spaces, in the presence of fumes, in an explosive environment or close to inflammable materials or electrical equipment.

7. Take on a firm and well-balanced position:
   • Avoid working on wet and slippery ground, on uneven, or steep ground that does not guarantee stability for the operator.
   • Never run but walk carefully paying attention to the lay of the land and any unexpected obstacles.
   • Assess the potential risks of the ground to be worked and take all necessary precautions to ensure your own safety. Especially on slopes or on bumpy, slippery, or unstable ground.

8. Make sure the machine is securely locked when you start the engine:
   • Check that there is nobody within at least 50 feet (15.25 meters) of the machine’s range of action.
   • Do not direct the silencer and therefore the exhaust fumes towards inflammable materials.

9. Do not change the engine settings or over-speed the engine.

10. Do not strain the machine too much and do not use a small machine for heavy-duty works. If you use the right machine, you will reduce the risk of hazards and improve the quality of your work.

11. Ensure the machine does not come into contact with foreign bodies and possible flying debris and dust being thrown up by the air. Do not direct the air jet in the direction of people or animals.

12. When used as a blower always pay the utmost attention to prevent removed material or dust from injuring people or animals or damaging property. Always assess wind direction and never work against the wind. Always extend the blower tube correctly so that the air flow works close to the earth.

13. During use keep your hands well away from the intake grille and from the air outlet and do not obstruct the air vents.

14. Stop the engine:
    • When mounting or removing accessories for blowing.
    • Whenever you leave the machine unattended.
    • Before refueling.
    • When moving between work areas.

15. Stop the engine and disconnect the spark plug cable:
    • Before checking, cleaning, or working on the machine.
    • After the intake of a foreign body. Inspect the machine for any damage and make repairs before restarting it again.
    • If the machine starts to vibrate abnormally (find and remove the cause of the vibration immediately).
    • When the machine is not in use.

16. To avoid the risk of fire, do not leave the machine with the engine hot on leaves, dry grass, or other inflammable material.

17. WARNING – If something breaks or an accident occurs while working, turn off the engine immediately and move the machine away to prevent further damage. If an accident occurs with injuries or third parties are injured, carry out the first aid measures most suitable for the situation immediately and contact the medical authorities for any necessary health care. Carefully remove any debris that might cause damage or harm persons, or animals should they not be seen.

18. WARNING The noise and vibration levels shown in these instructions are the maximum levels for use of the machine. Insufficient maintenance has a significant impact on vibration and noise emissions. Consequently, it is necessary to take preventive steps to eliminate possible damage due to high levels of noise and stress from vibration. Maintain the machine well, wear ear protection devices, and take breaks while working.

19. Rotating parts can cause serious injury, avoid contacting the rotating parts.

20. Don’t operate the machine near open windows.

21. Operating the machine with a stable speed and griping the handle firmly with suitable force can decrease the vibration level. Low engine speed mean low-noise level, so operate the machine at the lowest engine speed necessary to accomplish the task. During a working day, you should take frequent and adequate breaks to prevent damage from vibration and damage to the ears.

22. Prolonged exposure to vibrations can cause injuries and neurovascular disorders (also called “Raynaud’s syndrome” or “white hand”), especially to people suffering from circulation disorders. The symptoms can affect the hands, wrists and fingers and are shown through loss of sensitivity, torpor, itching, pain, and discoloration of or structural changes to the skin. These effects can be worsened by low ambient temperatures and/or by gripping the handgrips excessively tightly. If the symptoms occur, the length of time the machine is used must be reduced and a doctor consulted.

D) MAINTENANCE AND STORAGE

1. WARNING: Before cleaning or doing maintenance work, disconnect the spark plug cap and read the relevant instructions. Wear proper clothing and protective gloves whenever your hands are at risk.
2. WARNING: Never use the machine with worn or damaged parts. Faulty or worn-out parts must always be replaced and not repaired. Only use original spare parts: the use of non-original and/or incorrectly fitted parts will jeopardize the machine and impair safety, may cause accidents or personal injuries for which the Manufacturer is under no circumstance liable or responsible.
3. Contact PRORUN Customer Service for any questions or issues concerning this machine or its operation. All blower services, other than the items listed in the Operator’s Manual, should be performed by a PRORUN approved maintenance service center. Any operations performed in unauthorized centers or by unqualified persons will totally invalidate the Warranty and all obligations and responsibilities of the Manufacturer.
4. Keep all nuts and screws tight to be sure the machine is always in safe working condition. Routine maintenance is essential for safety and for maintaining a high performance level.
5. Do not perform any work on the machine that is not described in this manual.
6. Do not store the machine with fuel in the tank in any area where the fuel vapors could reach an open fame, a spark, or a strong heat source.
7. Allow the engine to cool down before storing the machine in any enclosure.
8. To reduce fire hazards, keep the engine, exhaust silencer, and fuel storage area free from sawdust, branches, leaves, or excessive grease. Never leave containers with the debris inside the storage area.
9. If the fuel tank has to be emptied, conduct the operation outdoors once the engine has cooled down.
10. Wear work gloves when performing all maintenance.
11. Before putting the machine away, check that you have removed all wrenches or tools used for maintenance.
12. Store the machine out of the reach of children!
13. For vacuum functions, inspect the bag to avoid wear and a decrease in quality.

E) TRANSPORTATION AND HANDLING

1. Whenever the machine is to be handled or transported you must:
   • Turn off the engine and disconnect the spark plug cap.
   • Only hold the machine using the handgrips and position the tubes so that they do not obstruct.

2. When using a vehicle to transport the machine, remove the tubes and position it so that it can cause no danger to persons. Fasten the blower firmly in place to avoid it from tipping over, which may cause damage or fuel spillage.

F) ENVIRONMENTAL PROTECTION
Environmental protection should be a priority of considerable importance when using the machine, for the benefit of both social coexistence and the environment in which we live. Try not to cause any disturbance to the surrounding area.

• Strictly comply with local regulations and provisions for the disposal of oils, petrol, damaged parts, or any elements which have a strong impact on the environment. The machine’s waste must not be disposed of as normal waste, it must be separated and taken to specified waste disposal centers where the material will be recycled.
• Strictly comply with local regulations and provisions for the disposal of waste materials.
• At the time of decommissioning, do not pollute the environment.

OPERATING INSTRUCTIONS

1. PREPARE THE MACHINE
The machine can be used as a blower; for these uses it is necessary to correctly arrange the appropriate accessories included with the equipment.
WARNING
Unpacking and completing the assembly should be done on a flat and stable surface, with enough space for moving the machine and its packaging, always making use of suitable equipment.
IMPORTANT
The safety systems prevent the engine from starting if the blower tubes are not assembled correctly.
1.1 USE AS A BLOWER

• Align the protrusions of the first blower tube (1) with the air outlet nozzle compartments (2), then push the tube until it is fitting firmly in place.
• Align the compartment of the second blower tube (3) with the protrusion (4) of the first tube, push the tube in and rotate it 90 degrees clockwise to one of the two positions, until it is fitting firmly in place.

NOTE
Fit the second tube with a flat or round end depending on the type of work to be accomplished.
To remove the first tube (1), insert the scrench / multi-tool included in the kit in the hole (5) and press firmly until you can slide the tube out from the air outlet nozzle.

2. PREPARING TO WORK
2.1 CHECKING THE MACHINE
Before starting work please:

• Check that all the screws on the machine are tightly fastened.
• Check that the air filter is clean.
• Check that the handgrips are well fastened.
• Prepare accessories according to the type of work (as blower) and make sure they are correctly mounted.
• Fill with fuel as indicated below.

2.2 PREPARING THE FUEL MIXTURE
This machine is fitted with a two-stroke engine which requires a mixture of petrol and lubricating oil.
IMPORTANT Using petrol alone will damage the engine and is cause for invalidation of the warranty.
IMPORTANT Use only quality fuels and oils to maintain high performance and guarantee the duration of the mechanical parts over time.
2.2.1 Petrol characteristics
Only use unleaded petrol with a fuel grade of at least 87 (AKI)
IMPORTANT Unleaded petrol tends to create deposits in the container if preserved for more than 2 months Always use fresh petrol!
2.2.2 Oil characteristics
Only use top quality synthetic oil specifically for two-stroke engines.
Your Dealer can provide you with oils which have been specifically developed for this type of engine, and which are capable of guaranteeing a high level of protection.
2.2.3 Preparation and preservation of the fuel mixture
WARNING
Petrol and the fuel mixture are highly inflammable!

• Keep the petrol and fuel mixture in authorized fuel containers, in a safe place, away from any flames or heat sources.
• Never leave the containers within the reach of children.
• Never smoke while preparing the mixture and avoid inhaling the petrol fumes.

To prepare the fuel mixture:

• Place about half the amount of petrol in a homologated tank.
• Add all the oil, according to the chart.
• Add the rest of the petrol.
• Close the top and shake well.

IMPORTANT The fuel mixture tends to age. Do not prepare excessive amounts of the fuel mixture to avoid the formation of deposits.
IMPORTANT Keep the petrol and fuel mixture containers separate and easily identifiable to avoid the mistake of using one in place of the other.
IMPORTANT Periodically clean the petrol and fuel mixture containers to remove any eventual deposits.

2.3 REFUELING
WARNING
To prevent serious injury from fire: Fill the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding fuel. Do not smoke.

1. Clean the Fuel Tank Cap and the area around it.

2. Unscrew and remove the Fuel Tank Cap.
   Note: Do not use gasoline containing more than 10% ethanol (ElO). Do not use E85 ethanol. Add fuel stabilizer to the gasoline or the Warranty is VOID.
   Note: Do not use gasoline that has been stored in a metal fuel container or a dirty fuel container. It can cause particles to enter the carburetor, affecting engine performance and/or causing damage.
   IMPORTANT: Your Warranty is VOID if the Engine’s Fuel Tank is not filled with the proper mixture (50:1) of unleaded gasoline and 2-cycle oil before each use.
   2-Stroke oil must meet either JASO M345 FD or 150-L-EGD requirements for air- cooled engines, synthetic.
   Before each use, check the fuel level. Do not run the Engine with an improper unleaded gasoline/2-cycle oil mixture. Running the Engine with an improper mixture WILL permanently damage the Engine.

3. To obtain the proper gasoline and 2-cycle oil mixture, mix 2.6 fluid ounces of 2-cycle oil with 1 gallon of unleaded gasoline into an approved container. Then gently agitate the container to thoroughly mix the gasoline/2-cycle oil.

4. lf needed, fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with the pre-mixed unleaded gasoline/2-cycle oil mixture.

5. Then replace the Fuel Tank Cap.

6. Wipe up any spilled fuel and allow excess to evaporate before starting engine. To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

3. USING THE MACHINE
3.1 STARTING THE MACHINE
Before starting the engine, place the machine on stable ground and make sure blowing are not crushed.
3.1.1 Cold starting
A “cold” start of the engine means starting it after at least 5 minutes from when it was switched off or after refueling.

1. Operate the choke lever, moving lever (2) to «CHOKE».
2. Press the primer device button (3) 7 to 10 times to prime the carburetor.
3. Hold the machine firmly with one hand on the hand grip (6), in order not to lose control of the machine during starting.
4. Pull the starter rope slowly for 4-6 inches {10-15 cm) until you feel some resistance, then tug it evenly and firmly a few times until you hear the engine turn over. IMPORTANT To avoid breaking the starter rope, do not pull the whole length of it or let it slide along the edge of the cable guide hole. Release the starter gradually, to avoid letting it fly back uncontrollably.
5. Switch the lever {2) to the «RUN» position.
6. Pull the starter grip again and press the throttle trigger all the way (4) until the engine starts as normal.
7. When the engine has started, press and release the throttle trigger (4) to allow the engine to run idle.
8. Rev the engine a little using the throttle trigger to warm it up before using the machine.

IMPORTANT If the starter rope is pulled repeatedly with the choke on, it may flood the engine and make starting difficult.
If you happen to food the engine, repeat the hot start procedure a few times to eliminate any excess fuel.
3.1.2 Hot starting
To hot start the engine immediately after it has stopped, follow steps 2 – 3 – 4 – 6 of the above procedure, making sure the primer (3) is activated 2-3 times only.
3.2 ADJUSTING THE SPEED
Rotor rpm must be proportionate to the type of work and regulated by the throttle trigger (4) located on the upper handgrip. The throttle trigger can be held in any required position engaging the throttle setting device (5).
3.3 STOPPING THE ENGINE

• To stop the engine:
• Turn the throttle setting device downwards (5).
• Release the throttle trigger (4).
• Press and hold the switch (1) in the «O» position until the engine switches of, then release the switch which will automatically move to the «I» position ready for the next start procedure.

4. OPERATING MODES
4.1 USE AS A BLOWER
WARNING
The machine must always be firmly gripped with your right hand on the upper handgrip during work.
Engine speed should be adjusted to the type of material to be removed:

• Use the engine at low speed for lightweight material and small bushes on the lawn.
• Use the engine at average speed to move grass and lightweight leaves on pavement or solid ground.
• Use the engine at high speed for heavier materials like fresh snow or voluminous dirt.

WARNING
Always pay the utmost attention to prevent removed material or dust from injuring people or animals or damaging property. Always assess wind direction and never work against the wind.
4.3 END OF OPERATIONS
When you have finished your work:

• Switch off the engine as indicated above (Chap. 6).
• Disconnect the spark plug cap.

5. ROUTINE MAINTENANCE
WARNING
Correct maintenance is essential to maintain the original efficiency and safety of the machine over time.
During maintenance operations:

• Remove the spark plug cap.
• Wait until the engine is sufficiently cold.
• Wear protective gloves.
• Do not work on the machine if you are not in possession of the necessary skills and tools.

5.1 STORAGE
After every working session, clean the machine thoroughly to remove all dust and debris, and repair or replace any faulty parts.
The machine must be stored in a dry place away from the elements.
5.2 CYLINDER AND SILENCER
To reduce fire risks, periodically clean the cylinder fins with compressed air and clear the silencer area from dust, leaves or other debris.
5.3 STARTING SYSTEM
To avoid overheating and damage to the engine, always keep the cooling air vents clean and free of sawdust and debris.
The starter rope must be replaced as soon as it shows signs of wear.
5.4 NUTS AND SCREWS
Periodically check that all the nuts and screws are securely tightened, and the handgrips are tightly fastened.
IMPORTANT Cleaning the air filter is essential to guarantee the efficiency and duration of the machine. Do not work with a damaged filter or without a filter, as this could permanently damage the engine.
It must be cleaned after every 8-10 working hours.
Clean the filter as follows:

• Loosen the knob (1), remove the cover (2) and the filter element (3).
• Wash the filter element (3) with soap and water. Do not use petrol or other solvents.
• Leave the filter to dry in the open air.
• Replace the filter element (3) and the cover (2) and tighten the knob (1).

5.6 CHECKING THE SPARK PLUG
Periodically remove and clean the spark plug using a metal brush to get rid of any deposits.
Check and reset the correct distance between the electrodes.
Replace the spark plug and fasten it firmly using the supplied wrench.
The spark plug must be replaced with one with the same characteristics whenever the electrodes have burnt or the insulation has worn, and in any case every 50 working hours.

5.7 CARBURETOR ADJUSTMENTS
IMPORTANT When the engine tends to switch off or there is not much difference in speed when using the throttle trigger, it is recommended to adjust the carburetion settings. Contact PRORUN Customer Service.
5.8 LONG PERIODS OF DISUSE
IMPORTANT If the machine will not be used for a period of more than 2-3 months, follow these procedures to avoid difficulty when you wish to use the machine again, and to prevent permanent damage to the engine.
5.8.1 Storage
Before putting the machine away:

• Empty the fuel tank.
• Start the engine and run it idle until it comes to a halt, so that it uses up all the fuel that is left in the carburetor.
• Allow the engine to cool down and remove the spark plug cap.

5.8.2 Restarting work
When you wish to start using the machine again:

• Replace the spark plug cap.
• Prepare the machine as indicated in the paragraph entitled “Preparing for work”.

5.9 MAINTENANCE TIMESCALE

The following intervals apply to normal operating conditions only. If your daily working time is longer or operating conditions are difficult (very dusty work area, etc.), shorten the specified intervals accordingly.| Before starting working| After finishing work daily| After each refueling stop| Weekly| Monthly| Every 12 months| If problem| If damaged| If required
---|---|---|---|---|---|---|---|---|---
Complete machine| Visual inspection (condition, wear, leaks)| | | | | | | | |
Clean| | | | | | | | |
Control handle| Check operation| | | | | | | | |
Air filter| Clean| | | | | | `| | |
Replace| | | | | | | | |
Filter in fuel
tank| Check| | | | | | | | |
Replace filter| | | | | | | | |
Carburetor| Check idle setting| | | | | | | | |
Readjust idle| | | | | | | | |
Spark plug| Readjust electrode gap| | | | | | | | |
Replace after 100 hours of operation| | | | | | | | |
Cooling inlets| Clean| | | | | | | | |
All accessible screws| Check| | | | | | | | |
Retighten| | | | | | | | |
Anti-vibration elements| Check| | | | | | | | |
Replace1)| | | | | | | | |
Safety labels| Replace| | | | | | | | |
Muffler| Clean1)| | | | | | | *| |

1. Contact PRORUN Customer Service for any questions or issues concerning this machine or its operation. All blower services, other than the items listed in the Operator’s Manual, should be performed by a PRORUN approved maintenance service center.

6. EXTRAORDINARY MAINTENANCE
All and any operations performed in unauthorized centers or by unqualified persons will totally invalidate the warranty.
6.1 FUEL FILTER
Inside the fuel tank there is a filter which prevents impurities from entering the engine.
The filter should be replaced once a year. Contact PRORUN Customer service for replacement parts.
6.2 CARBURETOR ADJUSTMENTS
The carburetor is tuned by the manufacturer to achieve maximum performance in all situations, with a minimum emission of toxic gas in compliance with the regulations in force.
In the case of poor performance contact PRORUN Customer Service.

7. DIAGNOSTICS

What to do when….

Source of problem| Corrective action| Source of problem| Corrective action
1. The engine will not start or will not keep running| 3.The engine runs irregularly and lacks in power when revved
Incorrect starting procedure| Follow the instructions (see chapter 3)| Dirty spark plug or incorrect distance between the electrodes| Check the spark plug (see chapter 5)
Dirty spark plug or incorrect distance between the electrodes| Check the spark plug (see chapter 5)
Carburation problems| Contact your Dealer.
|
Air filter clogged| Clean or replace the filter (see chapter 5)| 4.The engine makes too much smoke
Incorrect composition of the fuel mixture| Prepare the fuel mixture according to the instructions (see chapter 2)
Carburation problems| Contact your Dealer
Intake grille open| Close the grille
Carburation problems| Contact PRORUN Customer Service
5.The machine starts to vibrate abnormally
Blower tube not fitted| Fit the tube| Damaged or loose parts| Stop the machine and disconnect the spark plug cable. Inspect for damage. Check for and tighten any loose parts. Contact PRORUN Customer Service with any questions or issues.
2. The engine starts but is lacking in power
Air filter clogged| Clean or replace the filter (see chapter 5)
Carburation problem| Contact PRORUN Customer Service

TECHNICAL INFORMATION

(0.8 kw)
Maximum engine rotation speed| min-1| 8300
Spark plug| | CHAMPION RCJ7Y
Mixture (petrol: 2-stroke oil )| | 50:1
Fuel tank capacity| oz.
(ml)| 13.5 oz.
(400 mm)
Operator ear noise pressure level LpA
Measurement uncertainty| dB(A)
dB(A)| 93.9
3
Measured acoustic power level
Measurement uncertainty| dB(A)
dB(A)| 106.6
3
Acoustic power level guaranteed| dB(A)| 109
Vibration level
– upper handle
– lower handle
Measurement uncertainty| m/s2
m/s2
m/s2| 2.06
1.33
1.5
Weight
– blower| lbs.
(kg)| 10.36 lbs.
(4.7 kg)
Air volume
– Measured at housing| CFM
(m3/h)| 465 CFM
(790 m3/h)
Maximum air speed
– Measured at end of round tube| MPH
(m/s)| 160 MPH
(72 m/s)
Length (without tube)| Inches
(mm)| 13.8 inches
(350 mm)
Width (without tube)| Inches
(mm)| 9.8 inches
(250 mm)
Height (without tube)| Inches
(mm)| 13.8 inches
(350 mm)

Parts List and Diagram

Assembly Diagram

PRORUN regularly improves our products, and you may find slight differences between your machine and descriptions contained within this operator’s manual. Modifications can be made to the machine without notice and without the obligation to update the manual, providing that the essential safety and functional characteristics remain unaltered. Contact PRORUN Customer Service with any questions and for current specifications.

PRORUN/TOPSUN USA
200 Overhill Drive, Suite A
Mooresville, NC 28117
Proruntech.com
info@proruntech.com
Phone: 1-844-905-0882
Zhejiang Zhongjian Technology Co., Ltd
Web:www.topsunpower.cc
E-mail:sales@topsunpower.cc
ADD: No.155 Mingyuan North AVE, Economic Development Zone,
Yongkang, Zhejiang, 321300, P.R.China
Made In China

Documents / Resources

| PRORUN PHB2444 Handheld Blower [pdf] Instruction Manual
PHB2444 Handheld Blower, PHB2444, Handheld Blower, Blower
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