Ryobi 990r manual Operating Instructions, Adjusting The Trimming Line Length, Decorative Trimming

OPERATING INSTRUCTIONS

ADJUSTING THE TRIMMING LINE

LENGTH

Your trimmer is equipped with a bump head that allows the operator to release more trimming line without stop- ping the engine. To release additional line, lightly tap the trimming head on the ground (Fig. 23) while operating the trimmer at high speed.

Fig. 23

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

Each time the head is bumped, about 25.4 mm (1 in) of trimming line is released. A blade in the line guard will cut the line to the proper length if excess line is released.

For best results, tap the head on bare ground or hard soil. If line release is attempted in tall grass, the engine may stall.

DECORATIVE TRIMMING

Decorative trimming is accomplished by removing all vegetation around trees, posts, fences, etc. Use a

30-degree angle when trimming with this method (Fig. 24).

USING THE BRUSH BLADE

1.Always maintain the proper stance when using the brush blade (Fig. 25).

Sharpening the Brush Blade

WARNING

Do not sharpen the brush blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury to yourself or others.

The brush blade is designed with a second set of teeth, which can be used by removing the blade, turning it upside down, and reinstalling it.

If a crack is noticed, install a new blade from your authorized service dealer.

Fig. 25

NOTE: Do not use the brush blade for edging. Use the LE720r edger attachment.

Fig. 24

WARNING

Keep the J-handle between the operator and cutting head at all times.

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