MAINTENANCE

Air filter

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

•Carburetor malfunctions

•Starting problems

• Engine power reduction

• Unnecessary wear on the engine parts

• Abnormal fuel consumption

Clean the air filter daily or more often if the air is exceptionally dusty in the working area.

•Disassemble the air filter by

removing the cylinder cover and unscrew the filter. When reassembling, make sure that the filter is tight against the filter holder. Clean the filter by brushing or shaking it.

Muffler

The muffler is designed in order 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 screen.

If your saw has this type of muffler, you should clean the screen at least once a week. This is done with a wire brush.

CAUTION! The screen must be replaced, if damaged. The saw will be overheated, if the screen is clogged. This results in damage on the cylinder and the piston. Never use a saw with a clogged or defective muffler.

Needle bearing maintenance

• A more thorough cleaning of the filter is obtained by washing it in water and soap.

An air filter, which is used for some time, cannot be cleaned completely. Therefore it must be replaced by a new one, with regular intervals.

IMPORTANT! A damaged air filter must always be replaced.

A Husqvarna chain saw can be equipped with different types of airfilter according to working and weather conditions, season etc.

Spark plug

The spark plug condition is influenced by:

The clutch drum is equipped with one of the following chain sprockets:

•Spur sprocket (A) (the chain sprocket is welded on the drum)

•Rim sprocket (B) (exchangeable)

Both versions have built-in needle bearing at the drive shaft, whitch has to be greased regularly (once a week).

NOTE! Use only high quality bearing grease or engine oil.

A

B

•An incorrect carburetor setting.

•Wrong fuel mixture (too much oil in the gasoline).

•A dirty air filter.

Adjustment of the oil pump (350)

These factors cause deposits on the spark plug electrodes, which may result in malfunction and starting difficulties.

If the engine is low on

0,5 mm

power, difficult to start or

 

runs poorly at idling speed,

 

always check the spark plug

 

first. If the spark plug is dirty,

 

clean it and check the

 

electrode gap. Readjust if

 

necessary. The correct gap is

 

0,5 mm (0,020"). The spark

 

plug should be replaced after

 

about a month in operation or

 

earlier if the electrodes are

 

The oil pump is adjustable. Adjustments are made by turning the screw using a screwdriver or combination spanner. The saw is supplied from the factory with the screw set to position 2. Turning the screw clockwise will reduce the oil flow and turning the screw anti-clockwise will increase the oil flow.

 

+

–

2

1

 

3

 

 

badly eroded.

IMPORTANT! Always use the recommended spark plug type. An incorrect spark plug can severely damage the piston/cylinder.

!WARNING! The engine must not be running when making adjustments.

Recommended settings:

Bar 13"-15": Position 1

Bar 15"-18": Position 2

Bar 18"-20": Position 3

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Husqvarna 340 EPA II, 345 EPA II, 350 EPAI manual Air filter, Muffler, Needle bearing maintenance, Spark plug
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345 EPA II, 340 EPA II, 345 EPA II, 350 EPAI specifications

Husqvarna, a renowned leader in the outdoor power equipment industry, offers a range of chainsaws designed for various needs and applications. Among their impressive lineup, the Husqvarna 340 EPA II, 345 EPA II, and 350 EPA I chainsaws stand out for their robust performance and innovative features.

The Husqvarna 340 EPA II is designed to cater to both homeowners and professionals. Its lightweight design, weighing only 4.9 kg, ensures maneuverability without sacrificing power. The chainsaw is powered by a 40.9 cc engine, providing ample power for tasks such as pruning, cutting firewood, and light felling. One key feature is its X-Torq engine technology, which optimizes fuel efficiency while reducing harmful emissions, ensuring compliance with environmental regulations. The ergonomic handle and low vibration design enhance user comfort during extended use.

Next, the Husqvarna 345 EPA II takes the essentials of the 340 and amps them up. With a slightly larger 45.7 cc engine, this chainsaw offers increased cutting power, making it ideal for homeowners who require more robust performance. The chainsaw features an automatic oiler for consistent lubrication of the chain, which prolongs the lifespan of the chain and bar. Additionally, the 345 EPA II incorporates an easy start system, allowing users to start the machine with minimal effort, making it a practical choice for all skill levels.

Finally, the Husqvarna 350 EPA I is built for seasoned professionals who demand high performance. Equipped with a powerful 50.1 cc engine, it delivers exhilarating cutting speeds for demanding applications. The chainsaw features advanced ignition systems that ensure quick starts and reliable performance in various conditions. One of the standout characteristics of the 350 EPA I is its Air Injection technology, which centrifugal forces remove dust and debris from the air intake. This filtration system helps maintain engine efficiency and prolongs service intervals.

All three models are equipped with Husqvarna's signature features, including easy access to air filters for maintenance and a chain brake for added safety. Their durable construction and advanced ergonomics make them versatile tools, whether for occasional use in residential settings or for tackling rigorous tasks in commercial environments. With a commitment to innovation and sustainability, Husqvarna's EPA II chainsaws continue to set the standard for performance and reliability in the outdoor power equipment industry.
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