Ryobi RY52014 manual Replacing the BAR, See Figures 15, Chain BAR BAR NUT

MAINTENANCE

REPLACING THE BAR

See Figures 15 - 20.

WARNING:

To avoid possible serious injury, stop engine before re- placing the bar, chain, or performing any maintenance operation.

Remove the bar nut and drivecase cover.

The bar contains a bar stud slot that fits over the bar stud. The bar also contains a chain tensioning pin hole which fits over the chain tensioning pin.

Place the bar onto the bar stud so that the chain tension- ing pin fits into the chain tensioning pin hole.

Fit the chain over the sprocket and into the bar groove. The cutters on the top of the bar should face toward the bar tip, in the direction of the chain rotation.

Replace the side case cover and install the bar nut. Tighten the bar nut finger tight only. The bar must be free to move for tension adjustment.

CHAIN	BAR	BAR NUT	DRIVECASE
			COVER

Fig. 15

DRIVECASE

COVER

CHAIN

TENSIONING PIN

BAR NUT

Fig. 16

BAR STUD

BAR

BAR STUD SLOT

SPROCKET

CHAIN TENSIONING
PIN HOLE	Fig. 17

Remove all slack from chain by turning the chain tension- ing screw clockwise, assuring that the chain seats into the bar groove during tensioning.

Lift the tip of the bar up to check for sag. Release the tip of the bar, and turn the chain tensioning screw 1/2 turn clockwise. Repeat this process until sag does not exist.

Hold the tip of the bar up and tighten the bar nut se- curely.

Chain is correctly tensioned when there is no slack on the underside of the bar, the chain is snug, but it can be turned by hand without binding.

NOTE: If chain is too tight, it will not rotate. Loosen the bar nut slightly and turn adjusting screw 1/4 turn counter- clockwise. Lift the tip of the bar up and retighten bar nut.

CHAIN CHAIN ROTATION SPROCKET

BAR NUT

Fig. 18

CHAIN

TENSIONING SCREW

Fig. 19

BAR NUT

Fig. 20

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