Black & Decker CCS818R instruction manual Care and Maintenance, Bucking, Oil Level, Chain and Bar

90560838 ccs818 chain saw.qxd: chainsaw booklet new 2/12/10 10:07 AM Page 14

Bucking

Bucking is cutting a felled tree or log into lengths. How you should cut depends on how the log is supported. Use a saw horse (figure W) whenever possible.

Always start a cut with the chain running at full speed and the ribbed bumper (7) in contact with the wood. To complete the cut use a pivoting action of the ribbed bumper against the wood.

•(Figure S) When supported along its whole length

Make a cut from the top (overbuck), but avoid cutting the earth as this will dull your saw quickly.

•(Figure T) When supported at one end

First, cut 1/3 the diameter from the underside (underbuck). Then make the finished cut by overbucking to meet the first cut.

•(Figure U) When supported at both ends

First, cut 1/3 down from the top overbuck. Then make the finished cut by underbucking the lower 2/3 to meet the first cut.

•(Figure V) When on a slope

Always stand on the uphill side of the log. When "cutting through", to maintain complete control release the cutting pressure near the end of the cut without relaxing your grip on the chain saw handles.

Don't let the chain contact the ground. After completing the cut, wait for the saw chain to stop before you move the chain saw. Always stop the motor before moving from tree to tree.

•(Figure W) When using a saw horse

This is strongly recommended whenever possible. Position the log in a stable position. Always cut on the outside of the saw horse arms.

Care and Maintenance

Use only mild soap and damp cloth to clean the tool. Do not use solvents to clean the plastic housing of the saw. Never let any liquid get inside the tool; never immerse any part of the tool into a liquid. IMPORTANT: To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be performed by authorized service centers or other qualified service organizations, always using identical replacement parts.

Regular maintenance ensures a long effective life for your chain saw. We recommend you make the following checks on a regular basis:

Oil Level

The level in the reservoir should not be allowed to fall below a quarter full.

Chain and Bar

After every few hours of use, remove the guide bar and chain and clean thoroughly.

Saw Chain Sharpening

CAUTION: Sharp chain. Always wear protective gloves when handling the chain. The chain is sharp and can cut you when it is not running.

WARNING: Sharp moving chain. To prevent accidental operation, insure that battery is disconnected from the tool before performing the following operations. Failure to do this could result in serious personal injury.

To get the best possible performance from your chain saw it is important to keep the teeth of the chain sharp. Follow these helpful tips for proper saw chain sharpening:

1.For best results use a 4.5mm file and a file holder or filing guide to sharpen your chain. This will ensure you always get the correct sharpening angles.

2.Place the file holder flat on the top plate and depth gauge of the cutter.

3.	(Figure X) Keep the correct top plate	24	24
	(24) filing angle line of 30° on your file
	guide parallel with your chain (file at 60°
	from chain viewed from above).
4.	(Figure Y) Sharpen cutters (25) on one
	side of the chain first. File from the inside
	of each cutter to the outside. Then turn

your saw around and repeat the processes (2,3,4) for cutters on the other side of the chain. Use a flat file to file the tops of the rakers (portion of chain link in front of the cutter) so that they are about .025 inch (.635 mm) below the tips of the cutters.

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