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Let the saw run again at full-speed for about 10
seconds and note the difference of the engine- sound.
Repeat this procedure with the high speed needle H
turned 1/4 turn more counter-clockwise. The saw has
now been tested with the following settings: H=±0,
H=+1/4, H=+1/2 from basic adjustment. At full speed
the engine has produced a different sound for each
setting. The high speed needle H is correctly set when
the saw "4-cycles" a little. If the saw "whistles" the
setting is too lean. If there is too much exhaust gas at
the same time as the saw "4-cycles" much, the setting
is too rich. Turn the high speed needle H until the
setting sounds correct.
NOTICE
For optimum setting of the carburetor, contact a
qualified servicing dealer who has a revolution counter
at his disposal. The maximum speed recommended
must not be exceeded.
H. Correctly adjusted carburetor
A correctly adjusted carburetor means that the saw
accelerates without hesitation and the saw 4-cycles a
little at max speed. Furthermore, the chain must not
rotate at idling speed.
•
A too lean adjusted low speed needle L may cause
starting difficulties and bad acceleration.
•
A too lean adjusted high speed needle H gives lower
power=Iess capacity, bad acceleration and/or
damage to the engine.
•
A too rich adjustment of the two speed needles L and
H gives acceleration problems or too low working
speed.
Starter device
WARNING
When the recoil spring is assembled in the starter
housing, it is in tensioned position and can when
treated carelessly, pop out and cause injuries.
Always be careful, when changing the recoil spring or
the starter cord. Always wear safety goggles for eye
protection.
A. Changing a broken or worn starter cord
1. Loosen the screws, that hold the starter device
against the crankcase and remove the starter
device.
2. Pull out the cord approx. 30 cm and lift it up into the
notch in the pulley. Zero-set the recoil spring by
letting the pulley rotate slowly backwards. Undo the
screw in the centre of the pulley and remove the
pulley.
3. Insert and fasten a new starter cord in the pulley.
Wind approx. 3 turns of the starter cord on to the
pulley. Assemble the starter pulley against the
recoil spring, so the end of the spring engages to
the pulley. Fit the screw in the centre of the pulley.
Carry the starter cord through the hole in the starter
housing and the starter handle. Make a knot on the
starter cord.
B. Tensioning the recoil spring
Lift the starter cord up in the notch on the starter pulley,
and turn the starter pulley 2 turns clockwise.
Summary of Contents for NT6260
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