Ryobi 766r - Manual (Page 14)

OPERATING INSTRUCTIONS
14
TIPS FOR BEST TRIMMING RESULTS
• The correct angle for the cutting attachment
is 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 right to left whenever possible.
Cutting to the left 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.
Fig. 12
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. 12).
MAINTENANCE AND REPAIR INSTRUCTIONS
NOTE: Some maintenance procedures may
require special tools or skills. If you
are unsure about these procedures
take your unit to an authorized service
dealer.
MAINTENANCE SCHEDULE
These required maintenance procedures should
be performed at the frequency stated in the
table. They should also be included as part of
any seasonal tune-up.
WARNING: Never do maintenance
or repairs with unit running. Always
do maintenance and repairs on a
cool unit. Disconnect spark plug wire
to ensure the unit will not start.
FREQUENCY MAINTENANCE REQUIRED REFER TO:
Before Starting Engine Fill fuel tank with correct oil and fuel mixture. Page 11
Every 10 Hours Clean and re-oil air filter. Page 18
Every 50 Hours Check spark plug condition and gap. Page 20