Ryobi RY40007 Manuel D'utilisation page 38

 The trimmer cuts when passing the unit from left to right.
This will avoid throwing debris at the operator. Avoid cut-
ting in the dangerous area shown in figure 12.
 Use the tip of line to do the cutting; do not force string
head into uncut grass.
 Wire and picket fences cause extra line wear and break-
age. Stone and brick walls, curbs, and wood may wear
line rapidly.
 Avoid trees and shrubs. Tree bark, wood moldings, siding,
and fence posts can easily be damaged by the line.
 Do not attempt to touch or stop moving accessory. Coast-
ing blades or line can cause injury.
When using blades:
 Do not attempt to use the fixed line/blade housing for
edging. This will cause premature wear on the blades.
 Inspect trimmer head before each use and periodically
during long periods of use. If either blade is bent, warped,
cracked, chipped, or damaged, discontinue use immedi-
ately and replace the blades.
 Never cut any material over 1/4 in. diameter.
 After releasing the switch trigger, keep rotating accessory
in thicker weeds or pulpy stalks until it stops. Maintain
proper control until the accessory has completely stopped
rotating.
WARNING:
To avoid damaging blades or fixed line/blade housing,
allow at least 1 foot of clearance between the blades and
any nearby objects. Never use blades near sidewalks,
fencing, posts, siding, buildings, or other immovable
objects. Damaged blades or accessories can cause seri-
ous personal injury.
OPERATION
ADVANCING THE CUTTING LINE ON THE
BUMP FEED TRIMMER HEAD
Line advance is controlled by tapping the string head on
grass while running motor at full speed.
 Run engine at full throttle for gas power heads or with
the switch trigger fully pressed for cordless and electric
power heads.
 Tap the bump knob on ground to advance line. The line
advances each time the knob is tapped. Do not hold the
knob on the ground.
NOTE: The line trimming cut-off blade on the grass
deflector will cut the line to the correct length.
NOTE: If the line is worn too short you may not be able to
advance the line by tapping it on the ground. If so, STOP
THE ENGINE or MOTOR, disconnect the spark plug wire
for gas power heads, remove the battery pack for cordless
power heads, or disconnect the plug from the power source
for electric power heads, and manually advance the line.
To advance the cutting line manually:
 Stop the engine or motor, disconnect the spark plug
wire for gas power heads, remove the battery pack for
cordless power heads, or disconnect the plug from the
power source for electric power heads.
 Push the bump knob in while pulling on line(s) to manually
advance the line.
8 — English