Husqvarna 343R, 345RX, 343F, 345FX, 345FXT guide

3	Fuel system
	Check for wear on pins (A) and (B).
	Replace the throttle control (C) and
	lever arm (D) if necessary.
	Check that the cables are properly
	pressed into the cut-outs (E) and that
	the throttle cable (F) is in the right
	groove.
	If necessary, attach it with silicon
	adhesive in order to facilitate assembly.
	Check that the protective bellows (G)
	are whole and that they are correctly
	mounted over the ball on the cable.
	G

Remove the bolt (A) and remove the
throttle from the handle.	Remove the bolt (A) that attaches the
	Remove the bolt (A) that attaches the
Remove bolts (B) and (C).	throttle to the handle.
Separate the halves of the throttle.	Be careful not to lose the nut.
	Remove the throttle and remove bolts
	(B) and (C).
	Carefully separate the two halves of the
	throttle.

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Husqvarna 343R, 345RX, 343F, 345FX, 345FXT manual Check for wear on pins a and B

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.

Contents

343R 345RX 343F 345FX 345FXT Workshop Manual Brushcutter, Trimmer Model 343R, 345RX, 343F, 345FX, 345FXT Contents General recommendations Starter Contents Dismantling 1Starter Starter Assembly Replacing the drive dogs Electrical system 502 71 Electrical systemChecking the ignition spark Tip 502 50 Replacing the spark Plug cover 502 54 Heated handles Drive dogs Wiring diagram Electrical system Fuel system Air filter Fuel system Fuel filter Tank venting Dismantling Fuel pumpCarburettor Blending unit Carburettor’s designMetering unit Dismantling the carburettor Pump unit Fuel system Little shorter than the L-needle PositionedFor example, the H-needle is a Assembling the carburettor Than the L-needle H-needle is a little shorterCheck carefully that the fuel hoses Are not bent or pinched when Fine adjustment Carburettor settingsBasic setting Correctly adjusted carburettor Setting Recommended max. speed must not be exceededTachometer should always be used to find the optimal Idling speed T-screw Adjusting the L-needle Adjusting the H Needle Carburettor adjustment 345RX/FX Adjustment 345RX/FXThrottle Rotating Check for wear on pins a and B Tip Page Centrifugal clutch 502 21 Centrifugal clutch Do not lose the sleeve bearings found in the clutch shoes Centrifugal clutch 502 11 Clutch drum Change the bearings in the clutch housing if necessary Page Angle gear Let the small circlip around the axle remain Angle gear Input axle with pinion must be dismantled first 503 97 503 80 Shaft Cylinder and piston Cylinder and piston Decompression valve Turn the valve the right way when fittingWhen the valve is fitted the small hole must face outwards Inlet manifold Cleaning, inspection Cause Action Analysis and actionsInsufficient lubrication Piston scoring caused by heavy carbon deposits Piston ring breakage Piston damage caused by a too high engine speed Cause Foreign objects Defect Action Service tips Wear tolerances Crankshaft and crankcase Crankshaft and crankcase 502 52 Crankshaft and crankcase Inspecting Crankshaft Assembly Press down the sealing plates as Leakage testing CrankcaseFar as possible between the bolts To ensure a proper seal 503 55 Husqvarna E-TechPage Tools List of tools 503 97 502 50 505 38 502 50 502 52503 80 502 50 503 84 503 55 114 01 2003W24

Fuel system

Check for wear on pins (A) and (B).

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