Dolmar PB-250.4 instruction manual Before Start of Operation, Inspection and Refill of Engine Oil

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BEFORE START OF OPERATION

1.Inspection and Refill of Engine Oil

(1)Perform the following procedure, with the engine cooled down.

•Inspection： Please inspect whether it makes the machine horizontal, removes the oil cap, there is a oil to inside the range of the upper limit lower limit mark of gauge. When it is insufficient, (especially, when it has not reached to the lower limit level), please refill new oil.

•Refill： Verticality (under the suction port cover) please do the machine, remove the oil cap. When oil is supplied from the oil pipe port and oil level comes to the shelf inside the oil pipe, please stop oil supply.

(2)For reference, the oil refill time is about 10 h (refill frequency: 10 times).

(3)If the oil changes in color or mixes with dirt, replace it with new one. (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 (2.7 fl.oz)

Inspection method of engine oil

 

 

Upper limit

Upper limit

Lower limit

Lower limit

 

 

 

NOTE

•If the engine is not kept upright, oil may go into around the engine, and may be refilled excessively.

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

Point 1 in 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.

Shelf

Shelf

Point 2 in Replacement of Oil: “If oil spills out”

•It becomes cause of the oil soiling. Be sure to wipe out spilt oil before start of operation.

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Contents Importante PB-250.4English Table of Contents15meters Safety InstructionsMeters Resting Transport Refuelling Maintenance Tool ReplacementMethod of operation NGK CMR6A SpecificationDesignation of Parts Always wear protective gloves Assembly InstructionsPoint 2 in Replacement of Oil If oil spills out Point 1 in Replacement of Oil Oil GaugeBefore Start of Operation Inspection and Refill of Engine OilPoints for Fuel Storage of machine and refill tankWhen 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 Checking the spark plug Cleaning of air cleanerCleaning of parts Cleaning the fuel filterReplacement of gaskets and packings StorageFault location State of abnormality Probable cause malfunction Remedy TroubleshootingEmission Compliance Period Owners Warranty Responsibilities Manufacturers Warranty CoverageWhat is not Covered What is CoveredHOW to File a Claim 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.
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