2

Electrical system

Drive dogs

Remove the bolts.

Remove the hooks and the springs to replace them.

Mind the washer (A) so as not to lose it. Replace damaged parts.

Assemble in the reverse order.

502 50 18-01

Assembly

Check the key groove in the crankshaft and key in the flywheel. If damaged the components must be replaced.

Attach the ignition module and then the flywheel.

Check the air gap, see page 9.

0.3

502 51 34-02

Drive dogs

The drive dogs can be easily replaced if they are damaged.

Remove the bolts, the hooks and the springs.

Mind the washer (A) so as not to lose it. Replace damaged parts.

Assemble in the reverse order.

Check that the hooks can be turned freely when the bolts are tight.

Assembly

Check that the key groove in the crankshaft is not damaged. If it is, the crankshaft must be replaced.

Attach the ignition module and make sure the short-circuit cable is not trapped.

Check that the key in the flywheel is not damaged. If it is, the flywheel must be replaced.

Attach the flywheel.

Check the air gap, see page 9.

Heated handles

The heating element in the handles consists of ceramic plates. These are self-regulat- ing with regard to temperature. When temperature increases, the resistance in the elements lowers and so does the temperature. So no separate thermostat is needed.

Remove the throttle from the handle.

Remove the throttle from the handle.

In order to have access, the bolt that

See also chapter 3 “Throttle”.

holds the throttle and the cover with the

In order to remove the heating element

circuit breaker must be removed to

the bolt (A) that holds the throttle and

reach the electrical cables.

cover (B) and the heater switch must

 

 

 

 

 

 

 

 

first be removed (2 bolts).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

502 50 18-01

 

 

The heating element in the throttle is

A heating element is placed in the

accessed when the throttle lock is

throttle lock for involuntary throttling.

pushed out of the throttle.

Press the locking catch from the

Pry off the locking catch and lift out the

throttle, making sure not to lose the

spring (A).

heating element.

 

 

 

Pry off the locking catch (B) and lift out

 

 

the heating element (C).

 

 

 

 

 

NOTE!

 

 

Do not pry off the heating element

 

 

before the locking catch has been

 

 

removed. The element can be

 

 

damaged.

 

 

 

12

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Image 13
Husqvarna 343R, 345RX, 343F, 345FX, 345FXT manual Drive dogs, Heated handles
Page 12 Page 14

343R, 345RX, 343F, 345FX, 345FXT specifications

The Husqvarna 343R, 345RX, 343F, 345FX, and 345FXT are designed for efficiency and performance in demanding outdoor tasks. Each model stands out with unique features and technologies tailored to meet various needs, from professional landscaping to residential gardening.

Starting with the Husqvarna 343R, this versatile trimmer is well-known for its lightweight design and powerful performance. It is equipped with a 34 cc engine that delivers a reliable power-to-weight ratio, making it ideal for extended periods of use without excessive fatigue. The 343R features a simple start system, ensuring an easy ignition, while its Tap 'n Go trimmer head permits effortless line feeding, enhancing productivity.

Moving on to the Husqvarna 345RX, this model is favored by professionals for its robust build and advanced technology. Powered by a 45.7 cc engine, it provides superior cutting power suited for heavy-duty tasks. The 345RX comes with an ergonomic handle and a comfortable harness that allows for better weight distribution, which reduces strain during long work sessions. Additionally, the machine's X-Torq engine technology reduces fuel consumption and emissions, making it an environmentally friendly option.

The Husqvarna 343F offers a modest yet efficient powerhouse with its 34 cc engine. It is user-friendly, making it an excellent choice for recreational users or those new to outdoor maintenance. This model features an adjustable handle to accommodate various cutting angles, enhancing versatility according to the user's preference.

Next is the Husqvarna 345FX, an exceptional tool for professional use, boasting a high-performing 45.7 cc engine. The 345FX incorporates advanced vibration dampening technology, resulting in reduced operator fatigue during lengthy operations. Its advanced cutting attachments provide versatility for tackling different vegetation types, enhancing user experience.

Finally, the Husqvarna 345FXT merges performance with functionality. Like the 345FX, it features a 45.7 cc engine with exceptional power, but comes with additional features such as an easy-to-adjust harness and advanced cutting heads. This model is particularly suited for demanding tasks, offering extended run time and increased efficiency.

In summary, Husqvarna’s 343R, 345RX, 343F, 345FX, and 345FXT trimmers are engineered with cutting-edge technologies. Each offers unique features that cater to the distinct needs of both casual users and professionals. These models ensure optimal performance, efficiency, and comfort, making them excellent choices for various outdoor maintenance tasks.
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