Using A Blade; Blade Thrust - Shindaiwa T3410 Owner's/Operator's Manual

Using a Blade T3410/C3410
WARNING!
n Before working with a blade-
equipped unit, always inspect and
clean the area of objects that could
interfere with or damage the blade.
n Never use a blade near sidewalks,
fence posts, buildings or other
objects that could cause injury or
damage.
n Never use a blade for purposes
other than those for which it was
designed.

Blade Thrust

'Blade thrust' is a sudden sideways or
backward motion of the brushcutter. Such
motion may occur when the blade jams or
catches on an object such as a sapling tree
or tree stump. BE CONSTANTLY ALERT
FOR BLADE THRUST AND GUARD
AGAINST ITS EFFECTS!
Using a Blade T3410/C3410
The blade rotates counter-clockwise. For
best performance and to minimize being
stuck by debris, move the blade from right
to left while advancing on your work.
Position the blade so cuts are made be-
tween the blade's 8 o'clock and 10 o'clock
positions (as viewed from above). DO NOT
cut between the 10 o'clock and 5 o'clock
positions.
WARNING!
When cutting wood with a saw, feed
the blade slowly—never strike or "slam"
a spinning blade against the wood.
WARNING!
DO NOT use 2-tooth or non-Shindaiwa
approved 4-tooth cutting blades with
Shindaiwa trimmers and brushcutters.
Ten
O'clock
OK To Cut
Eight
O'clock
Figure 34
14
n Whenever you strike a hard object
with a blade, always stop the
brushcutter and carefully inspect
the blade for damage. NEVER
OPERATE THE BRUSHCUTTER
WITH A DAMAGED BLADE!
n A blade-equipped unit must be
equipped with a bicycle-type
handlebar or barrier bar as well
as a harness or shoulder strap.
n Always make sure the cutting at-
tachment shield is properly installed
before operating this unit.
Brushcutter Handlebar
A brushcutter handlebar or barrier bar
helps prevent the operator from moving
forward, or the unit moving rearward,
thus preventing inadvertent bodily contact
with the blade. ALWAYS KEEP THE
HANDLEBAR OR BARRIER BAR
SECURELY IN PLACE ON THE UNIT!
Vertical Cuts
Hold the brushcutter with the blade at
a 90° angle to the ground so the blade's
bottom edge rotates toward the operator.
Move the blade from top to bottom through
the cut, and cut only with the bottom edge
of the blade.
When making vertical cuts, never allow
the blade to exceed waist height.
Blade
Rotation
Figure 35
Five
O'clock
WARNING!
Cut on the left side
of the blade. KEEP
YOUR BODY
OUTSIDE THE
PATH OF BLADE
ROTATION
341027
Brushcutter Shoulder Strap
A shoulder strap provides additional
protection against blade thrust. In addition,
a shoulder strap gives significant support
and comfort to help ensure safe and
efficient operation.
When operating a T3410/C3410 with a
blade, make sure both the handle and
shoulder strap are adjusted to the size of
the operator using the unit.
Engine Operating Speeds
Operate the unit at full throttle while cut-
ting. Best fuel efficiency is obtained by
releasing the throttle when swinging back
after a cut.
n To prevent possible engine damage, do
not allow the brushcutter to run at high
speeds without a load.
n Avoid operating the engine at low
speeds. Doing so can lead to rapid
clutch wear. In addition, slow-speed
operation tends to cause grass and
debris to wrap around the cutting head.
Recommended Cutting
Attachments
Make sure to use the following recom-
mended Shindaiwa cutting attachment
with this machine.
PART NUMBER 60903-98310
8-TOOTH BLADE
INNER BORE: 25.4 mm
DIAMETER: 255.0 mm
THICKNESS: 2.0 mm
PART NUMBER 60903-98320
4-TOOTH BLADE
INNER BORE: 25.4 mm
DIAMETER: 255.0 mm
THICKNESS: 2.0 mm
PART NUMBER 78820-15000
BUMP & FEED TRIMMER HEAD
BOLT DIAMETER: 8 mm
THREAD:
LEFT, 1.25 mm PITCH