Dolmar Specifications and Features of the Blower PB-250.4

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SPECIFICATION

Model		PB-250.4

Mass (without blower pipe)	(kg)	4.5 (9.9 lbs)

Dimension (without blower pipe L x W x H)	(mm)	350×231×368 (13.8×9.1×14.5 in)

Max. engine speed	( /min)	7,800

Idling speed	( /min)	3,500

Engine displacement	(mL)	24.5 (1.49 cu,in)

Fuel		Automobile gasoline

Fuel tank capacity	(L)	0.52 (17.6 fl.oz)

Engine oil		SAE 10W-30 oil of API Classification, Class SF or higher
Engine oil		(4-stroke engine for automobile)
		(4-stroke engine for automobile)
Engine oil volume	(L)	0.08 (2.7 fl.oz)

Carburetor (Diaphragm-carburetor)		WALBRO WYL

Ignition system		Solid state ignition

Spark plug		NGK CMR6A

Electrode gap	(mm)	0.7 - 0.8 (0.028-0.031 in)

Notes:

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

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

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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 FuelWhen the engine is cold, or when the fuel it refueled OperationStarting Adjustment of Idling StoppingCheckup of low-speed rotation Operation Method Blower operationDust Collection Operation Inspection and Maintenance Replacement of engine oilPoints 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 DateWhere to GET Warranty Service Parts Covered Under the California Emission WarrantyMaintenance 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.