Ryobi P542 Chain Maintenance, How to Sharpen the Cutters, See Figures 30, See Figures 32

MAINTENANCE

Chain Maintenance

See Figures 30 - 31.

WARNING:

Cutting

Corner

Top Plate Side Plate

Remove the battery pack and make sure the chain	Rivet Hole	Depth Gauge
has stopped before you do any work on the saw.
Use only low-kickback chain on this saw. This	Heel	Toe
fast-cutting chain will provide kickback reduction
	Gullet
when properly maintained.		Fig. 30
For smooth and fast cutting, chain needs to be	check for wear
maintained properly. The chain requires sharpen-
	or damage
ing when the wood chips are small and powdery,
the chain must be forced through the wood during
cutting, or the chain cuts to one side. During main-
tenance of your chain, consider the following:

Improper filing angle of the side plate can

increase the risk of a severe kickback.

 Raker (depth gauge) clearance.
 Too low increases the potential for kickback.
 Not low enough decreases cutting ability.
 If cutter teeth have hit hard objects such as nails
and stones, or have been abraded by mud or sand	Fig. 31
on the wood, have service dealer sharpen chain.

NOTE: Inspect the drive sprocket for wear or dam- age when replacing the chain. If signs of wear or damage are present in the areas indicated, have the drive sprocket replaced by a Ryobi Service dealer.

How to Sharpen the Cutters

See Figures 32 - 33.

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.	Fig. 32

Wear gloves for protection. Properly tension

the chain prior to sharpening. Refer to Chain	LEFT HAND
Tension Section earlier in this manual. Do all
	CUTTERS
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.	RIGHT HAND
 Put a few firm strokes on every tooth. File all left
hand cutters in one direction. Then move to the	CUTTERS	Fig. 33
other side and file the right hand cutters in the
opposite direction. Occasionally remove filings
from the file with a wire brush.
22 - English