7

Crankshaft and crankcase

 

Inspecting the

Inspecting the

 

crankshaft

crankshaft

 

Inspect the large end of the connecting

The crankshaft cannot be reconditioned

 

rod.

but must be replaced if it is worn or

 

 

damaged.

 

 

Inspect the large end of the connecting

 

 

rod. If seizure marks, discolouration on

 

 

the sides or damaged needle holders

 

 

are found the crankshaft must be

 

 

replaced.

Inspect the small end of the connecting

Inspect the small end of the connecting

rod.

rod.

If seizure marks or discolouration are found in the bearing track the crank- shaft must be replaced.

Check the crank bearing.

Check the crank bearing. The connect-

 

ing rod shall not have any radial play

 

(up and down).

It should, however, have axial play, in order to ensure good lubrication of the crank bearing among other things.

Inspect the crankshaft bearing and

Check for wear in the crankshaft

sealing rings.

bearing and sealing rings.

Clean the bearings and rotate the outer ring. If movement is “jerky” the bearing track is probably damaged. If so, replace the bearing.

Also check that the gap is not too great.

Inspect the sealing rings. The seal edge shall be sharp or slightly ground.

54

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Husqvarna 343R, 345RX, 343F, 345FX, 345FXT manual Inspecting Crankshaft

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.