Makita EA3600F Instruction Manual page 21

Files and file guiding
- Use a special round file (optional accessory) for saw chains sharpening. Normal
round files are not suitable.
- Use the round file of diameter 4.0 mm.
- The file should only engage the cutter part on the forward stroke. Lift the file off
the cutter part on the return stroke.
- Sharpen the shortest cutter first. Then the length of this shortest cutter becomes
the standard for all other cutters on the saw chain.
- Guide the file as shown in the figure.
- A file holder (optional accessory) makes file guidance easier. The file holder has
markings for the correct sharpening angle of 30°. When using the file holder, align
the markings parallel to the saw chain, and limit the filing depth to 4/5 of the file
diameter.
- After sharpening the chain, check the depth of the cut using the chain gauge tool
(optional accessory).
- Remove the small excess with a special flat file (optional accessory).
- Round off the front of the depth gauge.
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