Repair instructions

Hand grip heater on model 346XPG, 351G, 353G – removal

No heating or heating only in front hand grip

Front hand grip – troubleshooting

1

Remove the three bolts that secure the cover over the front hand grip. Disconnect the leads from the switch and generator and measure the resistance of the hand grip heater, which should be 3–4 ohm. Replace the front hand grip if the resistance is higher.

2

Reconnect the leads and refit the cover.

3

Push the switch back into place and reconnect the leads.

4

Bolt the cover back onto the hand grip.

Generator – troubleshooting

1

Remove the cylinder cover and cover from the front hand grip. Disconnect the black lead from the generator and connect a multimeter between it and a clean area on the cylinder. The multimeter should show a resistance of 0.9–1.3 ohm. If the reading is higher or lower, replace the generator, see “Re- placing the generator”.

2

Reconnect the lead and refit the hand grip cover and cylinder cover.

Switch – troubleshooting

1

Carefully free the switch and frame from the front hand grip using a screwdriver.

2

Disconnect the leads from the switch and connect a multimeter to it. The meter should read over

1000 ohm when the switch is in the “0” position. The meter should read no higher than 0.1 ohm with the switch in the “1” position. Replace the meter if the readings are outside these limits.

Rear hand grip heater not working

Rear hand grip heater – troubleshooting

1

Remove the cylinder cover, air filter and cover from the rear hand grip.

2

Disconnect the red lead from the heater and connect a multimeter between it and the black earth lead that is bolted to the bottom of the carburettor on the clutch side of the saw. The meter should read 0.7–1.2 ohm. If the reading is higher replace the heater element.

3

Remove the air filter, throttle pushrod, rubber diaphragm and carburettor, see “Carburettor – removal”.

4

Remove the bolt from the plate at the base of the carburettor to release the lead for the heater element.

5

Unscrew the three bolts from the front hand grip and remove the cover to reveal the leads. Discon- nect the red lead.

18 – English

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Husqvarna 340, 345, 346XP,350, 351, 353 Hand grip heater on model 346XPG, 351G, 353G removal, Generator troubleshooting

340, 345, 346XP,350, 351, 353 specifications

Husqvarna is renowned for its high-quality chainsaws, and the Husqvarna 340, 345, 346XP, 350, 351, and 353 models are no exceptions. These models have garnered a reputation among both professional and amateur users for their reliability, durability, and cutting performance.

The Husqvarna 340 is an entry-level model designed for homeowners and light-duty tasks. It features a 40cc engine that provides a good balance of power and weight, making it easy to handle during extended use. The 340 is equipped with low-vibration technology, significantly reducing operator fatigue and making it suitable for less experienced users.

The Husqvarna 345 is slightly more powerful than the 340, boasting a 45.7cc engine. This model is ideal for users who require a bit more power for medium-duty tasks. It incorporates the air injection system, which helps to separate larger debris before it reaches the air filter, prolonging the life of the filter and maintaining optimal performance.

Moving up the range, the Husqvarna 346XP is a powerful professional chainsaw tailored for demanding tasks. With a 50.2cc engine and the X-Torq engine technology, it provides high cutting performance while reducing fuel consumption and emissions. The 346XP features an adjustable oil pump that allows for precise lubrication, making it an excellent choice for commercial users.

The Husqvarna 350 shares similarities with the 346XP but is designed for users who need a well-rounded saw for various applications. Its 50.2cc engine delivers ample power, and the ergonomically designed handle provides comfort during prolonged use. The chainsaw's advanced starting system ensures easy ignition, even in challenging conditions.

The 351 is another versatile option, equipped with a 50cc engine, designed for both professional and home use. It emphasizes user comfort and ease of handling. The compact design combined with features such as an efficient air filtration system makes the 351 suitable for long hours of work.

Lastly, the Husqvarna 353 is a heavy-duty model that excels in performance and longevity. It has a 50cc engine and incorporates various safety features, including a chain brake and throttle lock, to ensure safe operation. The saw also utilizes the unique anti-vibration system, minimizing vibrations that can lead to user fatigue.

In summary, the Husqvarna 340, 345, 346XP, 350, 351, and 353 models each offer distinct features catering to a wide range of users. From homeowners tackling light tasks to professionals requiring rugged performance, these chainsaws showcase Husqvarna's commitment to quality, innovation, and user-centric design.