Ryobi RY10520 Manuel de l'opérateur télécharger pdf (Page 30)

Page 30 — English

CUTTING

CORNER

SIDE PLATE

DEPTH GAUGE

TOE

GULLET

HEEL

RIVET HOLE

TOP PLATE

Fig. 49

Fig. 50

Fig. 51

LEFT HAND

CUTTERS

RIGHT HAND

CUTTERS

Fig. 52

MAINTENANCE

SHARPENING THE CUTTERS

See Figures 49 - 52.

Be careful to file all cutters to the specified angles

and to the same length, as fast cutting can only be

obtained 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.

Tension the chain prior to sharpening. Refer to

Adjusting The Chain Tension.

Use a 3/16 in. 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.

Using light but firm pressure. Stroke towards

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.

CAUTION:

A dull or improperly sharpened chain can cause

excessive engine speed during cutting, which

may result in severe engine damage.

WARNING:

Improper chain sharpening increases the poten-

tial of kickback.

WARNING:

Failure to replace or repair a damaged chain

can cause serious injury.

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Ryobi RY10520 Manuel de l'opérateur Page 30

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