![background image](http://html1.mh-extra.com/html/ryobi/780r/780r_operators-manual_1506908019.webp)
TIPS FOR BEST TRIMMING RESULTS
•
Keep the cutting attachment parallel to the
ground.
•
Do not force the cutting attachment. Allow
the tip of the line to do the cutting, especially
along walls. Cutting with more than the tip
will reduce cutting efficiency and may
overload the engine.
•
Cut grass over 8 in. (200 mm.) by working
from top to bottom in small increments to
avoid premature line wear or engine drag.
•
Cut from left to right whenever possible.
Cutting to the right improves the unit's
cutting efficiency. Clippings are thrown away
from the operator.
•
Slowly move the trimmer into and out of the
cutting area at the desired height. Move
either in a forward-backward or side-to-side
motion. Cutting shorter lengths produces the
best results.
•
Trim only when grass and weeds are dry.
•
The life of your cutting line is dependent
upon;
•
Following the previous trimming
techniques
•
What vegetation is being cut
•
Where it’s being cut
For example, the line will wear faster when
trimming against a foundation wall as opposed
to trimming around a tree.
DECORATIVE TRIMMING
Decorative trimming is accomplished by
removing all vegetation around trees, posts,
fences, etc.
Rotate the whole unit so that the cutting
attachment is at a 30° angle to the ground
(Fig. 26).
OPERATING INSTRUCTIONS
19
USING THE CUTTING BLADE
WARNING:
Always wear eye,
hearing, foot, body protection and
the strap to reduce the risk of injury
when operating this unit.
Before operating the unit with the cutting blade
stand in the operating position (Figs. 27). Refer
to
Holding the Trimmer,
Pg. 18.
Fig. 26
Fig. 27
Cutting Blade Operating Tips:
To establish a rhythmic cutting procedure:
•
Plant feet firmly, comfortably apart.
•
Bring the engine to full throttle before
entering the material to be cut. The blade
has maximum cutting power at full throttle
and is less likely to bind, stall, or cause blade
thrust, which can result in serious personal
injury to the operator or others.
WARNING: Blade thrust
may occur
when the spinning blade contacts an
object that it does not immediately
cut.
Blade thrust
can be violent
enough to cause the unit and/or
operator to be propelled in any
direction, and possibly lose control of
the unit.
Blade thrust
can occur
without warning if the blade snags,
stalls or binds. This is more likely to
occur in areas where it is difficult to
see the material being cut.
Summary of Contents for 780r
Page 30: ...NOTES 30...