Husqvarna 535RX 用户手册

28 – English

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If the start throttle speed is too high, turn the adjuster 
screw A anticlockwise until the cutting attachment 
stops. Then turn adjuster screw A clockwise a further 
1/2 turn.

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.

To keep the working temperature as low as possible the 
machine is equipped with a cooling system.

The cooling system consists of:

1

Air intake on the starter.

2

Cooling fins on the cylinder.

3

Cylinder cover (directs cold air over the cylinder).

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.

The bevel gear is filled with the right quantity of grease at 
the factory. However, before using the machine you 
should check that the bevel gear is filled three-quarters 
full with grease. Use HUSQVARNA special grease.

The grease in the bevel gear does not normally need to 
be changed except if repairs are carried out.

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