HONDA HHT25S - Manual (Page 12)

12
Throttle Operation
Pull the throttle trigger toward the grip to increase engine speed and
start the cutting attachment rotation.
The trimmer has the greatest cutting force at maximum engine speed.
Release the throttle trigger to reduce engine speed. At idle, the cutting
attachment should coast to a stop.
Using a Nylon Cutting-Line Head
As the ends of the line wear away, more line must be released from
the cutting-line head. Your trimmer is factory-equipped with either a
manual-feed or a semi-matic (bump feed) cutting-line head, which
have different procedures for releasing line.
The debris shield is equipped with a cutoff knife that automatically
removes any excess line that is released.
Manual-Feed Cutting-Line Head
Line must be released with the cutting-line head stopped.
1. Stop the engine, and wait for the cutting-line head to coast to a
complete stop.
2. Hold the housing, pull the spool out about a quarter of an inch, and
then turn the spool counterclockwise. Pull the two lines until the
spool snaps into the housing again.
The spool will snap into the housing every sixth of a turn, which
releases 1 to 1-1/2 inches of line. Repeat until the proper length of
line is obtained.
Semi-Matic (bump-feed) Cutting-Line Head
Line must be released with the cutting-line head spinning rapidly.
With the engine running at full speed, tap the cutting-line head on
hard, bare ground. Do not tap the cutting-line head on pavement or
concrete.
Each tap releases about 2 inches of line.
Using Blades
Refer to the chart on page 18 for appropriate blade applications.
If using a blade on a Honda trimmer equipped with a loop handle, also
install the optional Honda conversion kit that includes a full shoulder
harness, a barrier bar, and a debris shield for blades. Follow the
installation instructions and safety information that come with the kit.
Metal blades supplied with U-type handlebar models are supplied with
a cover surrounding the edge of the blade. For your safety, and to
protect the blade, the cover should be installed whenever the trimmer
is not in use.
Be sure to remove the blade cover before starting the engine.
Otherwise, the blade cover may fly off at high speed.
If the trimmer starts to vibrate after the blade strikes an object, stop
the engine immediately and check the blade for damage. A damaged
blade may break, and pieces of broken blade can become dangerous
projectiles. Replace the blade if it is broken, cracked, bent, or
damaged in any way.
SAFE OPERATING PRACTICES
Be very careful when operating the trimmer over uneven or rough
ground, and when the ground is wet and slippery. Watch out for
hidden obstacles that could cause you to stumble. Operate the
trimmer only under conditions with good visibility. Do not operate the
trimmer where you cannot see what it is cutting.
Thrown Debris
The trimmer will throw debris in the direction of blade movement at
the point of contact.
The cutting line head or blade rotates counterclockwise, as viewed
from the operator’s position. Tilting the cutting line head to the right
will throw debris away from you, and tilting to the left will throw debris
toward you.
If the cutting line head or blade is held parallel to the ground, debris
will scatter in all directions and there will be greater friction, which will
wear out the cutting line or blade sooner.
When operating the trimmer near a hard surface such as a wall, work
from an angle where debris that strikes the hard surface will ricochet
away from you.
Gravel, loose stones, etc. can be picked up by the nylon cutting lines
or blade and thrown many feet with enough force to cause serious
personal injury and/or property damage. Before crossing graveled
areas, release the throttle trigger to stop the cutting line head or
blade.
THROTTLE
TRIGGER
FAST
(cutting attachment rotates) IDLE
(cutting attachment stops)
To release more line,
pull spool and turn
counterclockwise.
HOUSING
SPOOL
HOUSING
SPOOL
B WARNING
Rotating cutting lines can cause serious abrasions and cuts,
and blades can cut deeply.
• Keep away from the cutting lines or blade whenever the
engine is running.
• Always stop the engine, and be sure the cutting line head
or blade has stopped turning, before inspecting or
handling the cutting lines or blade.
DEBRIS
Cut with the right
side to throw debris
away from you.