Black & Decker LCS120 Adjusting Chain Tension, Stretches slightly.G1, Not running

•Place the saw on a firm surface. Rotate the two allen head screws

(11)counterclockwise with the wrench (13) provided as shown in figure D.

•To remove the saw chain (9), rotate the tension adjustment screw

(23)in the front of the housing using the flat screwdriver end of the wrench (13) as shown in figure F. Turning the screw counterclockwise allows the guide bar to recede and reduces the tension on the chain so that it may be removed.

•Remove sprocket cover (10) and G allen head screws (11).

•Lift the worn saw chain (9) out of the groove in the guide bar (8).

•Place new chain in groove of guide bar making sure saw teeth are facing correct direction by matching arrow on chain with graphic on housing shown in figure G.

•Place the saw chain and guide bar assembly around the sprocket (19). Check to make sure that the slot (20) in the guide bar (8) is over the two location pins (21) shown in figure E and that the hole below the slot is located over the adjustment pin (22).

•Replace sprocket cover (10) and thread allen head screws (11) in with wrench until snug, then back wrench off one full turn.

•Pull bar nose up and keep it up as you adjust tension Figure G1.

•Rotate the tension adjustment screw (23) in the front of the housing clockwise to increase the chain tension as in Figure F.

•Follow instructions in “Adjusting Chain Tension” section.

•While still holding the bar nose up, securely tighten the rear allen screw (11) first, then tighten the front allen screw.

•When the chain is new check the tension frequently (after disconnecting battery) during the first 2 hours of use as a new chain

stretches slightly.G1

Adjusting Chain Tension
	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.
•	With the saw still on a firm surface check the chain tension. The
	tension is correct when the chain	H
	snaps back after being pulled 1/8
	inch (3mm) away from the guide
	bar (8) with light force from the
	middle finger and thumb as	1/8 in.
	shown in figure H. There should
	be no “sag” between the guide	(3mm)
	bar and the chain on the
•	underside as shown in figure I.
	To adjust saw chain tension,
	loosen the allen head screws	I
•	(11).
	Rotate the tension adjustment
	screw (23) in the front of the
	housing using the flat
	screwdriver end of the wrench
•	(13) as shown in figure F.
	Do not over-tension the chain as
	this will lead to excessive wear
	and will reduce the life of the bar and chain. Overtensioning also
•	reduces the amount of cuts you will get per battery charge.
	Once chain tension is correct, tighten allen head screws (11).
•	When the chain is new check the tension frequently (after
	disconnecting battery) during the first 2 hours of use as a new chain
	stretches slightly.

11