Husqvarna 335RJ manual Maintenance, Carburetor

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MAINTENANCE

Carburetor

Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. After the engine has used 8-10 tanks of fuel the engine will be run-in.To ensure that it continues to run at peak performance and to minimise harmful exhaust emissions after the running-in period, ask your dealer/service workshop (who will have a rev counter at their disposal) to adjust your carburettor.

WARNING! The complete clutch cover and

!shaft must be fitted before the machine is started, otherwise the clutch can come loose and cause personal injury.

Function

•The carburetor governs the engine’s speed via the throttle control. Air and fuel are mixed in the carburetor. The air/ fuel mixture is adjustable. Correct adjustment is essential to get the best performance from the machine.

•The setting of the carburetor means that the engine is adapted to local conditions, for example, the climate, altitude, fuel and the type of 2-stroke oil.

•The carburetor has three adjustment controls: L = Low speed jet

H = High speed jet

T = Idle adjustment screw

L

H

T

•The L and H-jets are used to adjust the supply of fuel to match the rate that air is admitted, which is controlled with the throttle. If they are screwed clockwise the air/fuel ratio becomes leaner (less fuel) and if they are turned anti- clockwise the ratio becomes richer (more fuel). A lean mixture gives a higher engine speed and a rich mixture gives a lower engine speed.

•The T-screw regulates the throttle setting at idle speed. If the T-screw is turned clockwise this gives a higher idle speed; turning it anti-clockwise gives a lower idle speed.

Basic setting

•The basic carburetor settings are adjusted during testing at the factory. The basic setting is richer than the optimal setting and should be maintained for the first few hours the machine is in use. The carburettor should then be finely adjusted. Fine adjustment should be carried out by a skilled technician.

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti- clockwise until the cutting attachment stops.

Rec. idle speed See the Technical data section.

Recommended max. speed: See the Technical data section.

WARNING! If the idle speed cannot be

!adjusted so that the cutting attachment stops, contact your dealer/service workshop. Do not use the machine until it has been correctly adjusted or repaired.

Fine adjustment

•When the machine has been ”run-in” the carburetor should be finely adjusted. The fine adjustment should be carried out by a qualified person. First adjust the L- jet, then the idling screw T and then the H-jet.

Conditions

•Before any adjustments are made, make sure that the air filter is clean and the air filter cover is fitted. If you adjust the carburettor when the air filter is dirty it will result in a leaner mixture when the filter is finally cleaned. This can lead to serious engine damage.

•Carefully turn both jets, L and H, so that they are midway between fully screwed in and fully screwed out.

•Do not attempt to adjust the L and H jets beyond either stop as this could cause damage.

•Now start the machine according to the starting instructions and let it warm up for 10 minutes.

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti-clockwise until the cutting attachment stops.

Low speed jet L

Try to find the highest idling speed, turning the low speed needle L clockwise respectively counter-clockwise. When the highest speed has been found, turn the low speed needle L 1/ 4 turn counter-clockwise.

L

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti- clockwise until the cutting attachment stops.

20 – English

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Contents 333RJ 335RJX-series KEY to Symbols SymbolsContents Introduction Dear customerWhat is WHAT? What is what on the clearing saw?General Safety Precautions Personal protective equipmentThrottle lockout Machine′s safety equipmentStop switch Muffler Cutting attachment guardVibration damping system Cutting equipment Cutting equipmentLocking nut Sharpening grass cutters and grass blades Trimmer headAssembly Fitting the J-handleAssembling the cutting equipment Fitting the guard extensionHook the blade guard/combination guard a onto Fuel Fuel safetyFuel Handling Fueling MixingStarting and Stopping Check before startingStarting and stopping StartingStopping General working instructions Basic safety rulesWorking Techniques Grass trimming with a trimmer head Grass clearing using a grass bladeBasic working techniques Cutting Maintenance CarburetorFine adjustment of the idle speed T Correctly adjusted carburetorMuffler High speed jet HCleaning the air filter Cooling systemBevel gear Air filterSpark plug Maintenance schedule Maintenance Daily Weekly MonthlyTechnical Data Technical dataMANUFACTURER′S Warranty Coverage Federal and California Emissions Control Warranty Statement Page S35 095-.106 T35 T45 Page ´z+RCG¶5K¨ Page 1150353-95 ´z+RCG¶5K¨ ´z+RCG¶5K¨

335RJ specifications

The Husqvarna 335RJ is a versatile and efficient gas-powered string trimmer designed for both professionals and homeowners seeking a reliable tool for maintaining their outdoor spaces. This machine combines power, ergonomics, and user-friendly features, making it suitable for tackling various lawn and garden tasks.

One of the standout features of the Husqvarna 335RJ is its powerful 34 cc engine. This advanced engine technology delivers excellent cutting performance while ensuring lower emissions and fuel consumption. With the X-Torq engine, users benefit from increased torque over a wide RPM range, giving the trimmer the ability to tackle thick grass and weeds effortlessly. The engine's design also reduces vibration, allowing for more comfortable extended use.

The trimmer features a lightweight and well-balanced design, which enhances maneuverability and ease of use. Weighing only 10.1 pounds, users can handle the trimmer for longer periods without experiencing fatigue. The adjustable handle provides additional comfort, while the ergonomic design helps reduce strain on the user's body.

Another notable characteristic of the Husqvarna 335RJ is its efficient cutting system. The trimmer is equipped with a Tap 'n Go dual line cutting head, which allows users to easily advance the line with a simple tap on the ground. This feature minimizes downtime and ensures continuous operation, making the trimmer ideal for large areas or complex landscapes.

Additionally, the 335RJ utilizes a unique air filtration system that enhances the engine’s performance and lifespan. The centrifugal air cleaning system pre-filters large debris from the air intake, reducing the frequency of filter cleanings and extending the time between maintenance. This technology, combined with the tool's easy-start feature, ensures that users can quickly get to work with minimal hassle.

The Husqvarna 335RJ is also designed with safety in mind. It includes features such as a protective guard and a large shield that offer safety while trimming along paths and flower beds. Overall, the Husqvarna 335RJ is an excellent choice for anyone looking for a reliable, powerful, and easy-to-use string trimmer that delivers exceptional results in yard maintenance and landscaping. With its combination of advanced technology, ergonomic design, and efficient performance, it stands out as a valuable investment for keeping outdoor spaces looking their best.
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