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Adjusting Engine Idle
Units equipped with emission
control system
Units with emission control systems are
equipped with factory preset carburetor
mixture adjustments. These units can not
be readjusted in the field.
WARNING!
The cutting attachment must NEVER
rotate at engine idle speeds!
The engine should return to normal idle
speed whenever the throttle control lever
is released. Idle speed is adjusted to permit
the clutch mechanism to disengage power
to the cutting attachment whenever the
engine is idling at the specified setting. To
adjust the idle speed:
Shoulder Strap & Harness
IMPORTANT!
Adjust the shoulder strap so the shoul-
der pad rests comfortably on the off-side
shoulder and the cutting path of the cut-
ting attachments is parallel to the ground.
Make sure all hooks and adjustment
devices are secure.
WARNING!
Always wear a harness when operating
this unit with a blade.
NOTE:
Using a harness with a brushcutter allows
you to maintain proper control of the unit and
reduces fatigue during extended operation.
Checking Unit Condition
NEVER operate the unit with the cut-
ting attachment shield or other protective
devices removed!
WARNING!
A cutting attachment shield or other
protective device is no guarantee of
protection against ricochet. YOU MUST
ALWAYS GUARD AGAINST FLYING
DEBRIS!
1. Start the engine, and allow it to idle 2-3
minutes to warm up.
3. If a tachometer is available, adjust
engine idle speed to 2,750 ±250 rpm
(min
).
-1
3. If a tachometer is not available and the
cutting attachment rotates while the
engine is idling, turn the idle adjustment
screw counterclockwise until the
cutting attachment stops rotating.
See Figure 26.
Double Shoulder Harness
Adjust the double shoulder harness straps
so the shoulder pads rest comfortably on
the offside of the
shoulder and the
cutting path of the
blade is parallel to
the ground. Make
sure all hooks and
adjusting devices
are secure. See
Figure 27.
Use only authorized Shindaiwa parts and
accessories with your Shindaiwa trimmer.
Do not make modifications to your unit
without the written approval of Shindaiwa,
Inc.
ALWAYS make sure the cutting attach-
ment is properly installed and firmly tight-
ened before operation.
NEVER use a cracked or warped cutting at-
tachment: replace it with a serviceable one.
ALWAYS make sure the cutting attach-
ment fits properly into the appropriate
attachment holder. If a properly installed at-
tachment vibrates, replace the attachment
with new one and re-check.
Idle Speed
Adjustment
Figure 26
Position of Hanger
Insert the harness hook in one of the four
holes in the hanger so that the unit is com-
fortably balanced.
B45045
Figure 27
ALWAYS stop the engine immediately and
check for damage if you strike a foreign
object or if the unit becomes tangled. Do
not operate with broken or damaged equip-
ment.
NEVER operate a unit with worn or dam-
aged fasteners or attachment holders.
B45031A
15
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