Makita UC4030A Instruction Manual - Page 22

Trouble shooting, Instructions for periodic maintenance - users manual

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Trouble shooting Malfunction Chain saw does not work System total insufficient performance Carbon brushes no chain lubrication Oil tank, oil pump Chain brake Brake Run-out brake Brake Observation Cause electric motor does not function no power supply, cable defective chain brake actuated Mains fuse blown low pulling power Carbon brushes worn down no oil on the saw chain oil tank empty, oil guide groove dirty Saw chain does not stop instantly Brake band worn down 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 Plastic case Saw chain Guide bar Each time before putting the saw into operation Sprocket Chain brake Run-out brake Saw chain After each shutdown Storage Guide bar Chain lubrication Chain brake Run-out brake Power switch Power supply cable Oil tank cap Guide bar Chain carrier Chain oil tank Saw chain/guide bar Electric chain saw Regularly clean the outside. Check for cracks and ruptures. In case of damage have it immediately repaired at a service centre. Resharpen regularly. Replace in time. Turn over after a certain period of time so that the bearing surfaces are uniformly worn. Replace in time. Have it replaced in time at a service centre. Have it inspected regularly at a service centre. Have it inspected regularly at a service centre. Check for damage and sharpness. Check the chain tension. Check for damage, and remove burrs if necessary. Functional check. Functional check. Functional check. Functional check. In case of damage have it replaced at a service centre. Check for tightness. Clean the oil inlet bore. Clean, especially the oil guide groove. Empty. Demount, clean and lubricate slightly. Clean the guide groove of the guide bar. 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). 22

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22
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).