HONDA HHT25S - Manual (Page 24)

24
Removal and Installation
This section shows you how to remove and install either style trimmer
head from your trimmer.
1. Insert the tip of a 4 mm hex wrench, or equivalent, fully into the
gear case hole.
2. Turn the trimmer cutting-line head until you feel the tool drop into
the hole in the cover plate/spacer A. Verify the trimmer head does
not turn.
3. All output shafts use left-hand threads. Make sure the tool remains
in the hole, then grasp the trimmer head and turn in the direction of
the arrow to remove.
4. Remove spacer B and cover plate/spacer A from the output shaft.
Note the order and orientation of each part as you remove them.
5. Installation is the reverse of removal. Always clean debris, dirt,
loose line, etc. from the trimmer head and output shaft area before
installation. Tighten the trimmer head securely.
STORAGE
STORAGE PREPARATION
Proper storage preparation is essential to keep your trimmer trouble
free and looking good. The following steps will help to keep rust and
corrosion from impairing your trimmer's function and appearance, and
will make the engine easier to start when you use the trimmer again.
Cleaning
Wash the trimmer, including the area around the trimmer head.
Wash the engine by hand and be careful to prevent water from
entering the air cleaner.
NOTICE
Using a garden hose or pressure washing equipment can force water
into the air cleaner. Water in the air cleaner will soak the filter and can
enter the carburetor or engine, causing damage.
Water on a hot engine can cause damage. If the engine has been
running, allow it to cool for at least 1/2 hour before washing.
If using a garden hose or pressure washing equipment to clean the
trimmer, be careful to avoid getting water into controls and cable, or
anywhere near the engine air cleaner or muffler opening.
Before washing the trimmer head area, disconnect the spark plug cap
from the spark plug.
After washing the trimmer, wipe dry all accessible surfaces.
Start the engine outdoors and let it run until it reaches normal
operating temperature to evaporate any water remaining on the
engine.
Stop the engine and allow it to cool.
After the trimmer is clean and dry, coat areas that may rust with a light
film of oil. Lubricate the control cable cores with a silicone spray
lubricant.
Fuel
NOTICE
Depending on the region where you operate your equipment, fuel
formulations may deteriorate and oxidize rapidly. Fuel deterioration
and oxidation can occur in as little as 30 days and may cause damage
to the carburetor and/or fuel system. Please check with your servicing
dealer for local storage recommendations.
Gasoline will oxidize and deteriorate in storage. Old gasoline will
cause hard starting, and it leaves gum deposits that clog the fuel
system. If the gasoline in your trimmer deteriorates during storage,
you may need to have the carburetor and other fuel system
components serviced or replaced.
The length of time that gasoline can be left in your fuel tank and
carburetor without causing functional problems will vary with such
factors as gasoline blend, your storage temperatures, and whether
the fuel tank is partially or completely filled. The air in a partially filled
fuel tank promotes fuel deterioration. Very warm storage
temperatures accelerate fuel deterioration. Fuel deterioration
problems may occur within a few months, or even less if the gasoline
was not fresh when you filled the fuel tank.
The DISTRIBUTORS LIMITED WARRANTY does not cover fuel
system damage or engine performance problems resulting from
neglected storage preparation.
You can extend fuel storage life by adding a gasoline stabilizer that is
formulated for that purpose, or you can avoid fuel deterioration
problems by draining the fuel tank and carburetor.
TRIMMER
HEAD
GEAR CASE HOLE
4 mm HEX WRENCH
(commercially available)
REMOVAL
DIRECTION
CUTTING-LINE HEAD
SPACER B
COVER PLATE/
SPACER A
OUTPUT SHAFT
(left-hand thread)