The cutting attachment must never
rotate at engine idle speed.
WARNING!
Adjusting The Carburetor
The engine must return to idle speed
whenever the throttle trigger is released.
Idle speed is adjustable and must be
set low enough to permit the engine
clutch to disengage the chain saw
when throttle trigger is released.
Check and Adjust Idle Speed
1.Start the engine and allow it to idle
two or three minutes, or until it
warms up.
If the cutting attachment rotates at
engine idle, reduce idle speed by
turning the idle adjusting screw
counter clockwise as necessary. See
Figure 32.
Use a tachometer, if one is available,
to set engine idle. Standard idle
speed is:
300
±
200rpm
IMPORTANT
Figure 32
NOTE
3.If the engine is stalling and won't
idle, increase idle speed by turning
the idle adjustment screw clockwise.
The mixture of the carburetor on this
unit cannot be adjusted.
Safety Operation
This machine is designed especially
for cutting branches.
Never use this machine for any other
purposes. Never try to cut stones,
metals, plastics or any other hard
objects.
Using for other purposes than cutting
branches may damage the machine or
cause serious injury.
Preparations
Wear suitable protective clothing
and equipment-see section "safety
Precautions".
Choose the best work position for
safety against the falling object
(Branch etc)
Start the engine.
Put on the strap.
Never stand directly underneath the
branch you are cutting-be wary of
falling branches. Note that a branch
may spring back at you after it hits the
ground.
Cutting sequence:
To allow branches a free fall, always
cut the lower branches first. Prune
heavy branches (Large diameter) in
several controllable pieces.
Working position:
Hold the control handle with your right
hand, and the shaft with your left hand.
Your left arm should be extended to
the most comfortable position.
The shaft should always be held at an
angle of 60
°
or less.
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Summary of Contents for MT250C
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