Ryobi RY43161 Manual Del Operador página 18

Too much clearance increases the potential for
kickback. Too little clearance decreases the size
of the wood chip thus decreasing the chain's
cutting ability.
 If cutter teeth have hit hard objects such as nails
and stones, or have been abraded by mud or
sand on the wood, have service dealer sharpen
chain.
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.
WARNING:
Before performing any maintenance, make sure
the tool is unplugged from the power supply.
Failure to comply could result in accidental
starting and possible serious personal injury.
WARNING:
The saw chain is very sharp. Always wear pro-
tective gloves when performing maintenance
to the chain to prevent serious personal injury.
 Tighten 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.
 Use a 5/32 in. diameter round file and holder.
 Keep the file level with the top plate of the tooth.
Do not let the file dip or rock.
 Using light but firm pressure, stroke towards
the front corner of the tooth. Lift 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. Occasionally remove filings
from the file with a wire brush.
WARNING:
Improper chain sharpening increases the po-
tential of kickback, which can result in serious
personal injury.
MAINTENANCE
TOP
PLATE
RIVET HOLE
RIGHT HAND
CUTTERS
Page 18 — English
PARTS OF A CUTTER
HEEL
GULLET
LEFT HAND
CUTTERS
CUTTING CORNER
SIDE PLATE
DEPTH GAUGE
TOE
Fig. 19
Fig. 20
Fig. 21
Fig. 22