25
Sharpening
In order to file the chain correctly you need: round file and file holder, flat file and a depth
gauge tool.
By using the correct file size (5.5 mm Round file) and a file holder, it is easier to receive a
good result.
Consult your ECHO dealer for correct sharpening tools and sizes.
1. Lock the chain - push the front hand guard forward.
To rotate the chain - pull the front hand guard against front handle.
2. Your chain will have alternative left and right hand cutters.
Always sharpen from the inside out.
3. Keep the angle lines of the file holder parallel to the line of the chain and file the cutter
back until the damaged area (side plate and top plate) has been removed.
4. Hold the file tipped 10° upward.
5. Avoid touching the tie straps with the file.
6. Sharpen the most damaged cutter first and then take all the other cutters back to the same
length.
7. The depth control determines the thickness of wood chip produced and must be
maintained correctly throughout the chain life.
8. As the cutter length is reduced, the depth control height is altered and must be reduced.
9. Position the depth gauge, and file off any of the depth control which protrudes.
10. Round off the front of the depth control to allow smooth cutting.
11. Drive link serves to remove sawdust from the groove of the guide bar.
Therefore, keep the lower edge of the drive link sharp.
When setting of the chain is finished, soak it in oil and wash away filings completely before
using.
When the chain has been filed on the bar, supply sufficient oil to it, and rotate the chain slowly
to wash away the filings before using again.
If the chain saw is operated with filings clogged in the groove, the saw chain and the guide bar
will be damaged prematurely.
If the saw chain becomes soiled with resin for instance, clean it with kerosene and soak it in oil.
