
23
Trouble shooting
Malfunction System Observation Cause
Chain saw does not work total electric motor does not
function
no power supply,
cable defective
chain brake actuated
Mains fuse blown
insufficient performance Carbon brushes low pulling power Carbon brushes worn
down
no chain lubrication Oil tank, oil pump no oil on the saw chain oil tank empty,
oil guide groove dirty
Chain brake Brake Saw chain does not stop
instantly
Brake band worn down
Run-out brake Brake Saw chain continues to run Carbon brushes worn
down
Instructions for periodic maintenance
To ensure long life, prevent damage and ensure the full functioning of the safety features the following maintenance
must be performed regularly. Guarantee claims can be recognized only if this work is performed regularly and properly.
Failure to perform the prescribed maintenance work can lead to accidents!
The user of the electric chain saw is not allowed to perform maintenance works which are not described in the
instruction manual. All other works must be carried out by a MAKITA service centre.
General work Electric chain saw Regularly clean the outside.
Plastic case Check for cracks and ruptures. In case of damage have it
immediately repaired at a service centre.
Saw chain Resharpen regularly.
Replace in time.
Guide bar Turn over after a certain period of time so that the bearing
surfaces are uniformly worn.
Replace in time.
Sprocket Have it replaced in time at a service centre.
Chain brake Have it inspected regularly at a service centre.
Run-out brake Have it inspected regularly at a service centre.
Each time before putting
the saw into operation
Saw chain Check for damage and sharpness.
Check the chain tension.
Guide bar Check for damage, and remove burrs if necessary.
Chain lubrication Functional check.
Chain brake Functional check.
Run-out brake Functional check.
Power switch Functional check.
Power supply cable In case of damage have it replaced at a service centre.
Oil tank cap Check for tightness.
After each shutdown Guide bar Clean the oil inlet bore.
Chain carrier Clean, especially the oil guide groove.
Storage Chain oil tank Empty.
Saw chain/guide bar Demount, clean and lubricate slightly.
Clean the guide groove of the guide bar.
Electric chain saw Store safely in a dry place. After a long storage time, have
the electric chain saw checked at a service centre (residual
oil can become resinic and the valve of the oil pump
clogged).
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