State of abnormality

Probable cause (malfunction)

Remedy

 

 

 

 

 

 

 

 

Cutter blade does not

Loosened cutter blade-tightening

Tighten securely

rotate

 

 

 

 

nut

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Twigs caught by cutter blade or

Remove foreign matter

 

Stop engine

dispersion-preventing cover

 

 

 

 

 

immediately

Abnormal drive system

Make request for inspection and

 

 

 

 

 

 

 

maintenance.

 

 

 

 

 

 

 

 

Main unit vibrates

Broken, bent or worn cutter blade

Replace cutter blade

abnormally.

 

 

 

 

 

 

Loosened cutter blade-tightening

Tighten securely

 

 

 

 

 

 

 

 

 

 

 

 

nut

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shifted convex part of cutter blade

Attach securely

 

Stop engine

 

and cutter blade support fitting

 

immediately

 

 

 

 

 

 

 

 

 

 

Abnormal drive system

Make request for inspection and

 

 

 

 

 

 

 

 

 

 

 

 

 

maintenance

 

 

 

 

 

 

 

 

Cutter blade does not

High idling rotation

Adjust

stop immediately.

 

 

 

Detached throttle wire

Attach securely

 

 

 

 

 

 

 

Stop engine

Abnormal drive system

Make request for inspection and

 

immediately

 

maintenance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engine does not stop.

Detached connector

Attach securely

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Abnormal electric system

Make request for inspection and

 

 

 

 

 

 

 

Run engine at idling,

 

 

maintenance.

 

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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Image 29
Makita EBH340U instruction manual Stop engine, Immediately, Run engine at idling, Set choke lever To Close