Ryobi 780r manual Holding the Trimmer Adjusting Trimming Line Length

OPERATING INSTRUCTIONS

HOLDING THE TRIMMER ADJUSTING TRIMMING LINE LENGTH

WARNING: Always wear eye, hearing, foot and body protection to reduce the risk of injury when operating this unit.

Before operating the unit, stand in the operating position (Fig. 24). Check for the following:

•The operator is wearing eye protection and proper clothing.

•The right arm is slightly bent, and the hand is holding the shaft grip.

•The left arm is straight, and the hand is holding the handle.

•The unit is below waist level.

•The cutting attachment is parallel to the ground and easily contacts the vegetation to be cut without the operator having to bend over.

The Bump Head™ cutting attachment allows you to release trimming line without stopping the engine. To release more line, lightly tap the cutting attachment on the ground (Fig. 25) while operating the trimmer at high speed.

NOTE: Always keep the trimming line fully extended. Line release becomes more difficult as cutting line becomes shorter.

	Fig. 25
	Each time the head is bumped, about 1 in
	(25.4 mm.) of trimming line is released. A blade
	in the cutting attachment shield will cut the line
	to the proper length if excess line is released.
	For best results, tap the Bump Head™ on bare
	ground or hard soil. If line release is attempted
	in tall grass, the engine may stall. Always keep
	the trimming line fully extended. Line release
	becomes more difficult as the cutting line
	becomes shorter.
Fig. 24	NOTE: Do not rest the Bump Head™ on
	the ground.
	CAUTION: Do not remove or alter
	the line cutting blade assembly.
	Excessive line length will make the
	clutch overheat. This may lead to
	serious personal injury or damage to
	the unit.

Some line breakage will occur from:

•Entanglement with foreign matter

•Normal line fatigue

•Attempting to cut thick, stalky weeds

•Forcing the line into objects such as walls or fence posts

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