Maintenance; Carburetor; Adjustment Of The Idle Speed - Husqvarna 122C Operator's Manual

MAINTENANCE
Carburetor
Adjustment of the idle speed
Use suitable personal protective equipment. During
adjustment the cutting attachment could rotate.
Before any adjustments are made, make sure that the air
filter is clean and the air filter cover is fitted.
Adjust the idle speed using the idle adjustment screwT, if
it is necessary to readjust. First turn the idle adjustment
screw T clockwise until the cutting attachment starts to
rotate. Then turn the screw anticlockwise until the cutting
attachment stops. The idle speed is correctly adjusted
when the engine will run smoothly in every position. The
idle speed should also be well below the speed at which
the cutting attachment starts to rotate.
Rec. idle speed: See the Technical data section.
_G! if theidlespeedcannot b e
! tha, the c urt,rig attoc,mo°, I
|#,,,,,,,,,,,,,_ stops, contact your dealer!service |
| workshop. Do not use the machine until it |
has be_justed or repaired.
Muffler
m
CAUTION! Some mufflers are fitted with a catalytic
converter. See chapter on Technical data to see whether
your machine is fitted with a catalytic converter.
The muffler is designed to reduce the noise level and to
direct the exhaust gases away from the operator. The
exhaust gases are hot and can contain sparks, which may
cause fire if directed against dry and combustible
material.
Some mufflers are equipped with a special spark arrestor
screen. If your machine has this type of muffler, you
should clean the screen at least once a week.This is best
done with a wire brush. On mufflers without a catalytic
converter the screen should be cleaned weekly, or
replaced if necessary. On mufflers fitted with a catalytic
converter the screen should be checked, and if necessary
cleaned, monthly. If the screen is damaged it should be
replaced. If the screen is frequently blocked, this can be
a sign that the performance of the catalytic converter is
impaired. Contact your dealer to inspect the muffler. A
blocked screen will cause the machine to overheat and
result in damage to the cylinder and piston.
CAUTION! Never use a machine with a defective muffler.
_tt_th catalyt_ |
| _eaffer stopping. |
| This_dle speed, Contact |
Remember the risk of fire!
16 - English