MAINTENANCE
HOW TO SHARPEN THE CUTTERS
See Figures 19 - 22.
Be careful to file all cutters to the specified angles and to the same length, as fast cutting can be obtained only when all cutters are uniform.
nTighten the chain tension enough that the chain does not wobble. Do all of your filing at the mid- point of the bar. Wear gloves for protection.
nUse a 5/32 in. diameter round file and holder.
nKeep the file level with the top plate of the tooth. Do not let the file dip or rock.
nUsing light but firm pressure, stroke towards the front corner of the tooth. Lift file away from the steel on each return stroke.
nPut 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. Occasionally remove filings from the file with a wire brush.
CAUTION:
Dull or improperly sharpened chain can cause excessive motor speed during cutting which may result in severe motor damage.
WARNING:
Improper chain sharpening increases the po- tential of kickback. Failure to replace or repair damaged chain can cause serious injury.
PARTS OF A CUTTER
CUTTING
TOPCORNER PLATE
SIDE PLATE
RIVET HOLE 
DEPTH GAUGE
HEEL | TOE Fig. 19 |
GULLET |
Fig. 20
Fig. 21
LEFT HAND
CUTTERS
RIGHT HAND
CUTTERS
Fig. 22
Page 19 — English