Husqvarna 333RJ 用户手册

22 – English

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.

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.

The air filter must be regularly cleaned to remove dust and 
dirt in order to avoid:

•

Carburettor malfunctions

•

Starting problems

•

Loss of engine power

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