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Talon AT3339AS User Manual page 5

Petrol string trimmer

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C
A
B
D
Fig. 11A
Fig. 11B
Fig. 11C
CARBURETOR ADJUSTMENT
The carburetor was pre-set at the factory for optimum per-
formance. If further adjustments are necessary, please
take your unit to the nearest Authorized Service Center.
SPARK PLUG
1. Spark plug gap = .025" (.635mm) (Fig. 12).
2. Torque to 105 to 130 inch pounds (12 to 15 N•m).
Connect spark plug boot.
F
Fig. 12
Fig. 13
DEBRIS SHIELD KNIFE SHARPENING
1. Remove cutter knife (E) from debris shield (F) (Fig.
13).
2. Place knife in a bench vise. Sharpen knife using a flat
file, being careful to maintain the angle of cutting
edge. File in one direction only.
STORING A UNIT
WARNING: Failure to follow these steps may
cause varnish to form in the carburetor and
difficult starting or permanent damage follow-
ing storage.
1.
Perform all the general maintenance recommended
in the Maintenance Section of your User Manual.
2.
Clean exterior of engine, drive shaft assembly, debris
shield and linehead.
3.
Drain fuel from the fuel tank.
4.
After fuel is drained, start engine.
5.
Run engine at idle until unit stops. This will purge the
carburetor of fuel.
6.
Allow engine to cool (approx. 5 minutes).
7.
Using a spark plug wrench, remove the spark plug.
8.
Pour 1 teaspoon of clean 2-cycle oil into the
combustion chamber. Pull starter rope slowly several
times to coat internal components. Replace spark
plug.
9.
Store unit in a cool, dry place away from any source
of ignition such as an oil burner, water heater, etc.
REMOVING A UNIT FROM STORAGE
1.
Remove spark plug.
2.
Pull starter rope briskly to clear excess oil from com-
bustion chamber.
3.
Clean and gap spark plug or install a new spark plug
with proper gap.
4.
Prepare unit for operation.
5.
Fill fuel tank with proper fuel / oil mixture. See Fuel
and Lubrication Section.
OPTIONAL BLADE ATTACHMENT
BLADE INSTALLATION
CAUTION: NEVER use unit if blade is
warped or has teeth that are chipped or miss-
ing. Replace a damaged blade immediately.
CAUTION: NEVER operate unit with a blade
unless metal blade guard is properly
installed. NEVER operate a unit with a dam-
aged guard.
CAUTION: Always wear heavy-duty work
gloves when handling and installing a blade.
E
1.
To install the blade you will need the items illustrated
below (screwdriver not provided): holding pin (A),
retaining nut (B), blade (C), screwdriver (D), flange
(E), socket wrench (F) (Fig. 14A)
2.
Remove three screws (E). Remove the skirt (A). Use
the holding pin to prevent the collar from turning while
removing the linehead (turn CLOCKWISE). (Fig.
14B)
A
F
C
B
D
E
Fig. 14A
WARNING: Be sure the blade center hole is
properly sized to the collar arbor.
3.
Leave the holding pin in place.
4.
Install blade (C) with teeth pointing CLOCKWISE as
shown in the illustration (Fig. 14C).
5.
Install flange (E) with FLAT SURFACE facing blade
(Fig. 14C).
NOTE: Make sure blade is centered on collar arbor.
6.
Tighten nut (B) securely by turning it COUNTER-
CLOCKWISE with socket wrench (F). Remove hold-
ing pin (Fig. 14D).
8
GB
Fig. 14C
CUTTING WITH BLADES
CAUTION : Before operating this machine
with a blade check to ensure it is properly
installed. Follow all warnings listed in the
blade safety precautions section in this man-
ual.
Always wear eye protection and protective clothing when
cutting with a blade.
Always use the harness for blade operations.
USING WEED BLADES
SCYTHING WEEDS
Scything refers to cutting by moving the blade from side to
side in a level arc. It is most effective with grassy weeds
and light undergrowth. It should not be used to cut large,
tough weeds or woody growth (Fig. 15).
E
CAUTION: Do not use weed blades to cut
brush or tree saplings.
A
Fig. 14B
USING A BRUSH BLADE
SCYTHING
Scything may be used with a brush blade for light brush
and undergrowth. It is not recommended for tough growth.
SAWING
Larger brush and saplings should be sawed. Do not
attempt to saw growths larger than 3 inches (7.5 cm) in
diameter.
Sawing is using the brush blade optional much like a cir-
cular saw. Make gradual cuts backing out every 1/2 inch
(1.3 cm) or so to prevent binding.
BINDING
Top heavy growth such as saplings and heavy brush can
bind and stop the blade. Avoid binding by anticipating
which way the growth will lean, and cut from the opposite
side.
If the blade binds in a cut stop the engine immediately.
F
Hold the unit up to prevent the blade from cracking or
breaking while pushing the sapling away from the cut to
free the blade.
E
AVOID KICKOUT
Kickout is the reaction of a moving blade if it contacts a
strong tree, brush or a solid object. The force that occurs
E
C
violently pushes the blade away in an arc. Kickout could
Fig. 14D
cause loss of control resulting in injury to the operator or
bystanders.
DO NOT USE A BLADE NEAR A CHAIN LINK FENCE,
METAL STAKES, LANDSCAPE BORDERS OR BUILD-
ING FOUNDATIONS.
The Talon blade guard is designed to reduce the risk of
kickout by providing stops to brace the unit against the
object being cut.
Place the sapling against the stop (A) so the rotation of
the blade continually draws it into the stop (A) (Fig. 16).
This provides greater control for the operator.
Fig. 15
9
GB
A
A
Fig. 16

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