Dolmar PB-250.4 Troubleshooting, State of abnormality Probable cause malfunction Remedy

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TROUBLESHOOTING

Before making a request for repairs, check a trouble for yourself. If any abnormality is found, control your machine according to the description of this manual. Never tamper or dismount any part contrary to the description. For repairs, contact Authorized Service Agent or local dealership.

 

State of abnormality

 

 

Probable cause (malfunction)

 

 

Remedy

 

 

 

 

 

 

Failure to operate primer pump

 

 

Push 7 to 10 times.

 

 

 

 

 

 

Low pulling speed of starter rope

 

 

Pull strongly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lack of fuel

 

Feed fuel.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clogged fuel filter

 

Clean

 

 

 

 

 

 

Broken fuel tube

 

Straighten fuel tube

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Deteriorated fuel

 

 

Deteriorated fuel makes starting more difficult.

 

 

 

 

 

 

 

 

 

Replace with new one. (Recommended

 

 

 

 

 

 

 

 

 

replacement: 1 month)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Excessive suction of fuel

 

 

Set throttle lever from medium speed to high

 

 

 

 

 

 

 

 

 

speed, and pull starter handle until engine

 

 

Engine does not start

 

 

 

 

 

starts.

 

 

 

 

 

 

 

If engine will not start still, remove spark plug,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

make electrode dry, and reassemble them as

 

 

 

 

 

 

 

 

 

they originally are. Then, start as specified.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detached plug cap

 

 

Attach securely

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contaminated spark plug

 

Clean

 

 

 

 

 

 

Abnormal clearance of spark plug

 

 

Adjust clearance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Other abnormality of spark plug

 

 

Replace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Abnormal carburetor

 

 

Make request for inspection and maintenance.

 

 

 

 

 

 

Starter rope cannot be pulled

 

 

Make request for inspection and maintenance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Abnormal drive system

 

Make request for inspection and maintenance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Insufficient warm-up

 

Perform warm-up operation

 

 

 

 

 

 

Choke lever is set to “CLOSE” although engine

 

 

Set to “OPEN”

 

 

 

 

 

 

is warmed up

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clogged fuel filter

 

Clean

 

 

Engine stops soon

 

 

Contaminated or clogged air cleaner

 

Clean

 

 

Engine speed does not increase

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Abnormal carburetor

 

 

Make request for inspection and maintenance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Abnormal drive system

 

Make request for inspection and maintenance

 

 

 

 

 

 

Detached throttle wire

 

 

Attach securely

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Abnormal drive system

 

Make request for inspection and maintenance

 

 

 

 

 

 

 

 

 

 

 

 

Engine does not stop.

 

 

Detached connector

 

 

Attach securely

 

 

 

 

 

 

Abnormal electric system

 

 

Make request for inspection and maintenance.

 

 

 

 

 

 

 

 

 

 

Run engine at idling, and set choke

 

 

 

 

 

 

 

 

lever to CLOSE.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When the engine does not start after warm-up operation:

If there is no abnormality found for the check items, open the throttle by about 1/3 and start the engine.

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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