MAINTENANCE
33
Be careful to file all cutters to the specified angles and to the same length, because fast
cutting can only be obtained when all cutters are uniform.
• Tension the chain prior to sharpening. Refer to Adjusting The Chain Tension.
• Use a 5/32" (4 mm) diameter round file and holder. Do all of your filing at the midpoint of the bar.
• Keep the file level with the top plate of the tooth. Do not let the file dip or rock.
• Use light but firm pressure. Stroke toward the front corner of the tooth.
• Lift the file away from the steel on each return stroke.
• Put a few firm strokes on every tooth. File all left-hand cutters in one direction. Then move to
• the other side and file the right-hand cutters in the opposite direction.
• Remove filings from the file with a wire brush.
SHARPENING THE CUTTERS (See Figure 32-35)
CAUTION:
Make sure the chainsaw is disconnected from the power supply before you work on the
saw.
WARNING:
The saw chain is very sharp. Always wear protective gloves when performing maintenance
involving the chain to prevent serious personal injury.
Fig. 32
Fig. 33
Fig. 34
Fig. 35
CUTTING
CORNER
SIDE PLATE
DEPTH GAUGE
TOE
GULLET
HEEL
RIVET HOLE
TOP PLATE
LEFT- HAND
CUTTERS
RIGHT-HAND
CUTTERS
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