Manual Husqvarna 226R (page 86 of 128) (English, Portuguese, Spanish)

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MAINTENANCE

86 – English

Carburettor

Adjusting the idle speed (T)

Check that the air ﬁlter is clean. When the idle speed is

correct, the cutting attachment should not rotate. If

adjustment is required, close (turn clockwise) the idle

adjustment screw T, with the engine running, until the

cutting attachment starts to rotate. Open (turn

anticlockwise) the screw until the cutting attachment

stops. The idle speed is correctly set when the engine

runs smoothly in all positions, and there is a clear margin

to the speed at which the cutting attachment starts to

rotate.

Mufﬂer

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

mesh. If your machine has this type of mufﬂer, you should

clean the mesh at least once a week. This is best done

with a wire brush. On mufﬂers without a catalytic

converter the mesh should be cleaned weekly, or

replaced if necessary. On mufﬂers ﬁtted with a catalytic

converter the mesh should be checked, and if necessary

cleaned, monthly.

If the mesh is damaged it should be

replaced.

If the mesh 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 mesh will cause the machine to overheat and

result in damage to the cylinder and piston.

CAUTION! Never use a machine with a defective mufﬂer.

Cooling system

To keep the working temperature as low as possible the

machine is equipped with a cooling system.

The cooling system consists of:

1 Cooling ﬁns on the cylinder.

2 Air intake.

Clean the cooling system with a brush once a week, more

often in demanding conditions. A dirty or blocked cooling

system results in the machine overheating which causes

damage to the piston and cylinder.

WARNING! If the idle speed cannot be

adjusted so that the cutting attachment

stops, contact your dealer/service

workshop. Do not use the machine until

it has been correctly adjusted or

repaired.

WARNING! Mufﬂers ﬁtted with catalytic

converters get very hot during use and

remain so for some time after stopping.

This also applies at idle speed. Contact

can result in burns to the skin.

Remember the risk of ﬁre!

H1153276-30,226R.fm Page 86 Tuesday, April 15, 2014 8:35 AM

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Husqvarna 226R Manual

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