Husqvarna 353 EPA III, 1151435-95 manual Maintenance, General, Carburetor adjustment

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MAINTENANCE

General

The user must only carry out the maintenance and service work described in this manual.

IMPORTANT! Any maintenance other than that described in this manual must be carried out by your servicing dealer (retailer).

Carburetor adjustment

Due to existing environmental and emissions legislation your chain saw is equipped with movement limiters on the carburetor adjuster screws. These limit the adjustment possibilities to a maximum of a 1/2 turn.

1/2

1/2

Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions.

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 satisfactory operation of a catalytic converter depends, among other factors, on the correct adjustment of the carburetor. Carefully follow the instructions below, using a tachometer as an aid.

•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 settings and running in

The basic carburetor settings are adjusted during testing at the factory. Avoid running at a too high speed for extended periods during the first 10 hours.

CAUTION! If the chain rotates while idling theT-screw must be turned anti-clockwise until the chain stops.

Rec. idle speed: 2700 rpm

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 the air filter should be clean and the cylinder cover fitted. Adjusting the carburetor while a dirty air filter is in use will result in a leaner mixture next time the filter is cleaned. This can give rise to serious engine damage.

•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.

•Place the machine on a flat surface so that the bar points away from you and so that the bar and chain do not come into contact with the surface or other objects.

Low speed jet L

Turn the low speed jet L clockwise until it stops. If the engine accelerates poorly or idles unevenly, turn the low speed jet L anticlockwise until good acceleration and idling are achieved.

Fine adjustment of the idling speed T

Adjust the idle speed with the T-screw. If it is necessary to re-adjust, turn the T-screw clockwise while the engine is running, until the chain starts to rotate. Then turn counter- clockwise until the chain stops. A correctly adjusted idle speed setting occurs when the engine runs smoothly in every position. It should also be good margin to the rpm when the chain starts to rotate.

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Contents 346XP EPA I 353 EPA KEY to Symbols Symbols on the machineSymbols in the operator’s manual EPA Contents Introduction Dear customerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawPersonal protective equipment Machine′s safety equipmentAlways use common sense Chain brake and front hand guardGeneral Safety Precautions Throttle lockout Chain catcherRight hand guard Vibration damping system Stop switchCutting equipment MufflerChain Cutting equipment designed to reduce kickbackBar Injuries Some terms that describe the bar and chainSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Filling with chain oil Lubricating cutting equipmentWhich could lead to serious, even fatal injuries Chain oil Checking chain lubricationChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Assembly Fitting the bar and chainProtect your hands from injury Fuel Handling FuelTransport and storage Fuel safetyFueling Long-term storageCold engine Starting and StoppingStarting and stopping Warm engineStopping Before use Basic safety rulesWorking Techniques General working instructionsGeneral rules Basic cutting technique TermsLimbing Felling direction Tree felling techniqueSafe distance Clearing the trunk and preparing your retreatDirectional cuts Felling cutFreeing a trapped tree General adviceFreeing a tree that has fallen badly Cutting trees and branches that are in tensionHow to avoid kickback What is kickback?Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral Checking brake band wear Correctly adjusted carburetorHigh speed jet H Checking the front hand guardChecking the inertia brake release ImmediatelyMuffler Tensioning the recoil spring StarterChanging a broken or worn starter cord Changing a broken recoil springLubricating the bar tip sprocket Air filterSpark plug Needle bearing lubricationTemperature 0C 32F or colder Adjustment of the oil pumpAir Injection centrifugal cleaning Cooling systemHeated handles Electrical carburetor heating346XPG, 353G Maintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations 050058 Saw chain filing and file gauges Federal Emission Control Warranty Statement Repair or Replacement of Parts Repair orConsequential Damages Husqvarna Forest Kickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautions1151435-95

353 EPA III, 1151435-95 specifications

The Husqvarna 1151435-95,353 EPA III is a notable addition to the world of outdoor power equipment, catering specifically to those who demand efficiency, power, and sustainability. This quality product is designed for both homeowners and professionals, striking an impeccable balance between high performance and user-friendly operation.

One of the standout features of the Husqvarna 1151435-95,353 EPA III is its cutting-edge 2-stroke engine technology. With a focus on reducing emissions, this engine complies with the stringent EPA III regulations, making it an environmentally responsible choice. It utilizes advanced combustion processes that not only enhance fuel efficiency but also minimize harmful exhaust pollutants, ensuring a cleaner atmosphere while delivering the power needed for demanding tasks.

Another remarkable characteristic of this model is its ergonomic design. The machine is built for comfort during prolonged use, featuring an adjustable handle, anti-vibration technology, and a lightweight structure that significantly reduces user fatigue. These ergonomics allow for better control and maneuverability, ensuring users can navigate varied terrains with ease.

The Husqvarna 1151435-95,353 EPA III also comes equipped with Smart Start technology, which simplifies the starting process. This feature minimizes resistance in the starter cord, making it easier to start the machine with minimal effort. This is especially beneficial for those who might struggle with traditional starting systems.

Additionally, this model showcases a well-designed cutting system. Its sharp, durable blades provide precision cutting, whether you're tackling thick grass or dense brush. The adjustable cutting height allows for customized performance to suit different types of landscaping needs, making it versatile in various scenarios.

Durability is another hallmark of the Husqvarna 1151435-95,353 EPA III. Constructed with high-quality materials, this machine is designed to withstand the rigors of outdoor work. Its robust build quality ensures longevity, reducing the need for frequent repairs or replacements.

Overall, the Husqvarna 1151435-95,353 EPA III represents a significant step in modern outdoor equipment. With its environmentally friendly engine, ergonomic design, easy starting capabilities, and robust cutting performance, it is well-suited for both professional landscapers and avid gardeners alike. This model epitomizes Husqvarna's commitment to innovation and quality, making it a reliable choice for anyone in need of efficient outdoor power tools.
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