Dolmar PB-250.4 instruction manual Storage of machine and refill tank, Points for Fuel

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2. Fuel supply

WARNING

•When supplying the fuel, 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 to the place of fuel supply.

-Stop the engine and allow the engine to cool down before fuel supply.

-Open the fuel tank cap full of fuel slowly. The fuel may sprout 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.

STORAGE PERIOD OF FUEL

Fuel should be used up within a period of 4 weeks, even if it is kept in a special container in a well-ventilated shade. 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 the cabin or trunk.

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 refueling the fuel, be sure to stop the engine and confirm that the engine cools down.

REFUELING METHOD

•Loosen the tank cap a little so that there will be no difference in atmospheric pressure.

•Detach the tank cap, and refuel, discharging air by tilting the fuel tank so that the refuel port will be oriented upward. (Never refill fuel full to the oil refill port.)

•After refueling, securely tighten the tank cap.

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

•The tank cap is consumable, and therefore should be renewed every two to three years.

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Contents PB-250.4 ImportanteTable of Contents EnglishSafety Instructions 15metersResting Transport Refuelling Maintenance Tool Replacement MetersMethod of operation Specification NGK CMR6ADesignation of Parts Assembly Instructions Always wear protective glovesBefore Start of Operation Point 1 in Replacement of Oil Oil GaugePoint 2 in Replacement of Oil If oil spills out Inspection and Refill of Engine OilStorage of machine and refill tank Points for FuelOperation When the engine is cold, or when the fuel it refueledStarting Stopping Adjustment of IdlingCheckup of low-speed rotation Blower operation Operation MethodDust Collection Operation Replacement of engine oil Inspection and MaintenancePoints in replacement of engine oil Cleaning of air cleaner Checking the spark plugReplacement of gaskets and packings Cleaning the fuel filterCleaning of parts StorageFault location Troubleshooting State of abnormality Probable cause malfunction RemedyEmission Compliance Period Manufacturers Warranty Coverage Owners Warranty ResponsibilitiesHOW to File a Claim What is CoveredWhat is not Covered Waranty Commencement DateParts Covered Under the California Emission Warranty Where to GET Warranty ServiceMaintenance Statements Repair and Replacement of EMISSION-RELATED Parts Obtaining Warranty Service HOW to Make a Claim

PB-250.4 specifications

The Dolmar PB-250.4 is a robust and efficient backpack blower designed for both commercial and residential use. Known for its powerful performance and user-friendly operation, the PB-250.4 stands out as a reliable choice for landscaping professionals and homeowners alike.

One of the main features of the Dolmar PB-250.4 is its impressive engine. Equipped with a 24.5 cc, 2-stroke engine, it delivers a commendable airflow of up to 700 CFM (cubic feet per minute) and a maximum airspeed of 160 mph. This power allows users to tackle heavy debris, leaves, and grass clippings with ease, making yard maintenance swift and effective.

The design of the PB-250.4 emphasizes comfort and ergonomic use. It comes with a padded shoulder harness, which distributes the weight evenly and reduces fatigue during extended use. Additionally, the adjustable throttle and ergonomic handle provide better control and precision, enhancing the overall user experience.

The technology behind the Dolmar PB-250.4 reflects a commitment to efficiency and environmental responsibility. The blower incorporates the advanced 2-stroke engine technology, which not only provides superb power but also integrates a clean-air system that reduces emissions, making it a more eco-friendly option compared to older models.

Easy starting is another characteristic that sets the PB-250.4 apart. The blower is equipped with a reliable starting system that minimizes resistance for an effortless start, even in cold conditions. This feature is particularly beneficial for users who may need to start and stop the blower frequently throughout their tasks.

Maintenance of the PB-250.4 is straightforward, thanks to its accessible components and design features. The air filter can be easily cleaned and replaced, ensuring that the engine runs optimally with minimal downtime.

In summary, the Dolmar PB-250.4 is a high-performance backpack blower that combines power, efficiency, and comfort in a user-friendly package. Its robust engine, ergonomic design, and commitment to low emissions make it an excellent choice for anyone looking to maintain their outdoor spaces effectively. Whether for professional landscaping or home use, the PB-250.4 delivers the performance and reliability users demand.
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