Ryobi P20190 Manual Del Operador página 13

CUTTING TIPS
See Figure 9.
 Keep the trimmer tilted toward the area being cut; this is
the best cutting area.
 The grass trimmer cuts when passing the unit from right
to left. This will avoid throwing debris at the operator.
Avoid cutting in the dangerous area shown.
 Use the tip of the line to do the cutting; do not force string
head into uncut grass.
 Wire and picket fences cause extra line wear, even 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.
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.
 Depress the switch trigger completely.
 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, remove
the battery pack and manually advance the line.
To advance the cutting line manually:
 Remove the battery pack.
 Push the bump knob in while pulling on line(s) to manually
advance the line.
OPERATION
ADJUSTING THE LINE CUT-OFF BLADE
See Figures 10 - 11.
This trimmer is equipped with a line cut-off blade on the grass
deflector. For best cutting, advance line until it is trimmed to
length by the line cut-off blade. Advance line whenever you
hear the engine running faster than normal, or when trimming
efficiency diminishes. This will maintain best performance
and keep line long enough to advance properly.
This trimmer is currently set at the 15 in. cutting swath. To
adjust to a cutting swath of 13 in.:
 Remove the battery pack.
 Loosen the blade screw then rotate the line cut-off
blade 180°.
 Tighten the blade screw.
WARNING:
The line cut-off blade on the grass deflector is sharp. Use
gloves while working with the blade. Direct contact with
the blade can result in serious personal injury.
9 — English