To perform maintenance on the
attachment
To check the saw chain
Do a check of the saw chain daily.
1. Make sure that there are no cracks in rivets and
links.
2. Examine if the saw chain is rigid.
3. Compare the saw chain with a new saw chain to
examine if the rivets and links are worn.
4. Replace the saw chain if it exhibits any of the
conditions above.
5. Replace the saw chain when the length of the cutting
teeth has worn down to only 4 mm (0.16 in.)
To examine the chain drive sprocket
1. Regularly do a check of the degree of wear on the
chain drive sprocket.
2. Replace the chain drive sprocket if it is worn and
moves from side to side on the motor axle.
To do a check of the guide bar
1. Make sure that the oil channel is not blocked. Clean
if it is necessary.
2. Examine if there are burrs on the edges of the guide
bar. Remove the burrs using a file.
3. Clean the groove in the guide bar.
4. Examine the groove in the guide bar for wear.
Replace the guide bar if it is necessary.
5. Examine if the guide bar tip is rough or very worn.
6. Make sure that the bar tip sprocket turns freely and
that the lubricating hole in the bar tip sprocket is not
blocked. Clean and lubricate if it is necessary.
7. Turn the guide bar daily to extend its life cycle.
774 - 001 - 12.11.2018
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