Parker PCS-2600, Руководство пользователя, Страница: 20 / 29

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ADJUSTING THE CARBURETTOR
ADJUSTING THE CARBURETTOR
4
HIGH SPEED ADJUSTMENT SCREW
2
ADJUST ENGINE IDLE SPEED
3
LOW SPEED ADJUSTMENT SCREW
H - High speed adjustment screw (this is the
high speed jet). This is the adjustment that
controls the air/fuel mixture at high RPMs.
Adjust this screw too rich and the chainsaw
will stall, too lean and it will over rev.
T
- This controls the engine speed at idle. If
set too low the saw will stall. If set too high
the chain will move. The saw chain should not
move at engine idle speed, otherwise serious
injury may result.
L
- Low speed adjustment screw (this is the
low speed jet). This is the adjustment that
controls the air/fuel mixture at idle. Adjust this
screw too rich and the chainsaw will stall at
idle speed. Adjust this screw too lean and the
engine will race or surge. An extremely lean
adjustment will also cause the engine to flood.
The carburettor on your saw has been factory set but may
require some minor adjustments due to a change in
operating conditions. Before adjustment, make sure that the
air/fuel filters are clean and the fuel is properly mixed.
It is recommended that adjustments are done when the
chainsaw is warm and fully assembled.
Never adjust the carburettor more than 1/4 turn in either
direction without first testing the saw. To reset your carburettor
to factory settings fully close both the L and H screws by
turning clockwise and then anti clockwise 1 1/2 turns.
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ADJUSTING THE CARBURETTOR