Dolmar PB-250.4 Storage, Cleaning the fuel filter, Inspection of bolts, nuts and screws

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4.Cleaning the fuel filter

•Clogged fuel filter may cause difficulty of startup or failure of engine speed increase.

•Check the fuel filter regularly as follows:

(1)Remove the fuel tank cap, drain the fuel to empty the tank. Check the tank inside for any foreign materials. If any, wipe clean such materials.

(2)Pull out the fuel filter with wire through the oil filling port.

(3)If the fuel filter surface is contaminated, clean it with gasoline. Foul gasoline must be disposed of according to the method specified by each local authority. Excessively foul filter must be replaced.

(4)Reset the fuel filter in the fuel tank and tighten firmly the fuel tank cap. For replacement, contact your dealership or an authorized service agent.

Hose clamp

Fuel filter

Fuel tank cap

5.Inspection of bolts, nuts and screws

•Retighten loose bolts, nuts, etc.

•Check for fuel and oil leakage.

•Replace damaged parts with new ones for safety operation.

6.Cleaning of parts

•Keep the engine always clean.

•Keep the cylinder fins free of dust or dirt. Dust or dirt adhering to the fins will cause seizure.

7.Replacement of gaskets and packings

In reassembling after the engine is dismounted, be sure to replace the gaskets and packings with new ones.

Any maintenance of adjustment work that is not included and described in this manual is only to be performed by Authorized Service Agents.

STORAGE

WARNING

•When draining the fuel, be sure to stop the engine and confirm that the engine cools down.

-Just after stopping the engine, it may still hot with possibility of burns, inflammability and fire.

DANGER

•When the machine is kept out of operation for a long time, drain up all fuel from the fuel tank and carburetor, and keep it at a dry and clean place.

Drain up fuel from the fuel tank and carburetor according to the following procedure:

(1)Remove the fuel tank cap, and drain fuel completely.

If there is any foreign matter remaining in the fuel tank, remove it completely.

(2)Pull out the fuel filter from the refill port using a wire.

(3)Push the primer pump until fuel is drained from there, and drain fuel coming into the fuel tank.

(4)Reset the filter to the fuel tank, and securely tighten the fuel tank cap.

(5)Then, continue to operate the engine until it stops.

(6)Remove the spark plug, and drip several drops of engine oil through the spark plug hole.

(7)Gently pull the starter handle so that engine oil will spread over the engine, and attach the spark plug.

(8)During storage, in order for the machine to become uprighting, please keep.

(9)Keep the drained fuel in a special container in a well-ventilated shade.

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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 glovesPoint 1 in Replacement of Oil Oil Gauge Point 2 in Replacement of Oil If oil spills outBefore Start of Operation 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 plugCleaning the fuel filter Cleaning of partsReplacement of gaskets and packings StorageFault location Troubleshooting State of abnormality Probable cause malfunction RemedyEmission Compliance Period Manufacturers Warranty Coverage Owners Warranty ResponsibilitiesWhat is Covered What is not CoveredHOW to File a Claim 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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