Stihl SR 430, Руководство пользователя

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70 SR 430, SR 450
Installing
: Carefully turn the high speed
screw
H (1) clockwise as far as
stop.
– Carry out the basic setting,
b 9.7.1
9.7 Adjusting the Carburetor
9.7.1 Basic Setting
The basic setting is necessary only
if the high speed screw (
H ) or low
speed screw ( L ) has to be replaced,
the limiter cap has been removed or
after cleaning the carburetor.
– Always install a new limiter cap.
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The high speed screw ( H ) can now
be adjusted.
– Use the screwdriver
5910 890 2305 – the setting disk
5910 893 6600 can be fitted on
the screwdriver to simplify
adjustments.
Starting with the low speed and high
speed screws against their seats,
turn them counterclockwise.
: Turn the high speed screw H (1)
1 1/2 turns. Turn the low speed
screw L (2)
1 full turn.
This completes the basic setting of
the high speed screw (
H ) and the
low speed screw ( L ) .
The air filter must be clean and
installed.
– Start and warm up the engine.
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: Insert the screwdriver (1)
5910 890 2305 into the
adjusting screws (arrow).
Adjust idle speed with a tachometer.
1 Adjust engine speed idle speed
screw (
LA ) to 3,000 rpm.
2 Turn the
low speed screw (
L ) clockwise
or counterclockwise to obtain
the maximum engine speed.
If this speed is higher than
3,150 rpm, abort the procedure and
start again with step 1.
3 If the maximum speed of
3,150 rpm is reached, turn the
low speed screw
L
counterclockwise until a speed
of 3,000 rpm is obtained
– Install a new limiter cap.
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