Husqvarna 357XPG and 359 Carb Settings and Adjustment Manual
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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 the T-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 Operator’s manual 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 MufflerCutting equipment designed to reduce kickback BarChain Increases the risk of kickback Sharpening your chain and adjusting depth gauge settingGeneral information on sharpening cutting teeth Sharpening cutting teethTensioning the chain Lubricating cutting equipment Chain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Assembly Fitting the bar and chainWorking with the chain 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 instructionsClutch cover causing the chain to CleaningJam. Always stop the engine before Basic cutting technique TermsLimbing Logs are lying together. SuchOr fatal injury Felling direction Tree felling techniqueSafe distance Clearing the trunk and preparing your retreatDirectional cuts Training we advise you not to fell treesYour saw 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?Maintenance Carburetor adjustmentGeneral Correctly adjusted carburetor High speed jet HChecking the brake trigger Muffler Tensioning the recoil spring Wound up in the starter housing it isChanging a broken or worn starter cord Changing a broken recoil springAir filter Spark plugFitting the starter Lubricating the bar tip sprocket Adjustment of the oil pumpWhen making adjustments Needle bearing lubricationWinter use Air Injection centrifugal cleaningTemperature 0C 32F or colder Heated handlesMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical data Bar and chain combinations 050058 Saw chain filing and file gauges Federal Emission Control Warranty Statement Your Warranty Rights and ObligationsKickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautionsOriginal instructions 1153179-95

1153179-95, 359/G, 359G E-tech, 357XP E-tech, 357XP/XPG specifications

The Husqvarna 357XPG E-tech and its counterparts, the 357XP/XPG, 357XP E-tech, and 359G E-tech, are noteworthy chainsaws designed for both professionals and enthusiasts who demand reliability and performance. These models encompass advanced technologies that enhance their functionality, making them suitable for a variety of cutting tasks.

One of the standout features of the 357XPG and its siblings is the E-tech engine technology. This system is designed to provide high performance while minimizing environmental impact. The E-tech engines are known for delivering efficient fuel consumption and lower emissions, making them compliant with stringent regulations and eco-friendly.

The chainsaw is equipped with an air injection system that pre-cleans the intake air, reducing the amount of debris that enters the engine. This results in longer air filter life and reduces maintenance, allowing users to focus more on their cutting tasks rather than frequent cleanings.

The 357XPG model is also equipped with a heated handle, a valuable feature for those working in colder climates. This ergonomic design ensures comfort and usability, reducing user fatigue during extended periods of operation. The rubberized clutch cover and handle reduce vibration, allowing for smoother handling and less strain on the operator.

In addition, the chainsaws are designed with a lightweight body, which enhances maneuverability. The magnesium and composite materials used in construction contribute to the overall durability without adding excessive weight. This combination makes it easy for users to handle the saw for both horizontal and vertical cuts.

The 357XP/XPG and 359G E-tech series include advanced bar and chain systems, providing superior cutting performance. The chains are designed for fast and efficient cutting, enabling users to tackle tough wood with minimal effort. The automatic oiler ensures that the bar and chain receive adequate lubrication, reducing wear and enhancing longevity.

For ease of use, the chainsaws are equipped with a tool-less chain tensioning system, allowing users to make quick adjustments without the need for additional tools. This feature highlights the user-friendly design that Husqvarna emphasizes in its products.

In summary, the Husqvarna 357XPG E-tech, 357XP, and 359G models stand out due to their advanced engine technologies, ergonomic features, lightweight construction, and practical design elements. These chainsaws offer a blend of performance, ease of use, and environmental responsibility, making them ideal tools for both professional lumberjacks and homeowners looking to accomplish tough cutting tasks efficiently.
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