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Ryobi RY40506 Manual Del Operador página 18

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 Depth gauge (or raker clearance) setting de-
termines the height the cutter enters the wood
and the size of the wood chip that is removed.
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 21 - 24.
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:
The saw chain is very sharp, always wear pro-
tective gloves when performing maintenance
to the chain to prevent serious personal injury.
 Properly tension the chain prior to sharpening.
Refer to Adjusting the Chain Tension section
earlier in this manual. Do all of your filing at the
mid-point of the bar.
 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
RAKER (DEPTH GAUGE)
TOP
PLATE
RIVET HOLE
WARNING:
Failure to replace or repair damaged chain can
cause serious injury.
18 — English
CLEARANCE
PARTS OF A CUTTER
HEEL
GULLET
.025 in.
Fig. 20
CUTTING
CORNER
SIDE PLATE
DEPTH GAUGE
TOE
Fig. 21
Fig. 22
Fig. 23

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