Husqvarna 1153158-95 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.

Function, Basic settings, Fine adjustment

WARNING! Do not start the chain saw

! unless the bar, chain and clutch cover (chain brake) are fitted, otherwise the clutch may 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

H L

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. 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 chain rotates while idling the T-screw must be turned anti-clockwise until the chain stops.

Rec. idle speed:

2800 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.

Fine tuning may be required if the chain saw, after changing the type of fuel, performs differently with regard to starting, acceleration, maximum speed, etc.

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.

•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 chain rotates while idling the T- screw must be turned anti-clockwise until the chain stops.

•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.

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

Final setting 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.

WARNING! Contact your servicing

! dealer, if the idle speed setting cannot be adjusted so that the chain stops at idle. Do not use the chain saw until it has been properly adjusted or repaired.

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Contents 334T 338XPT 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 sawAlways use common sense Machine′s safety equipment Personal protective equipmentChain brake and front hand guard Throttle lockout Chain catcherVibration damping system Muffler Stop switchCutting equipment General rulesBar ChainSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipment Filling with chain oilChecking chain lubrication Chain drive sprocket Checking wear on cutting equipmentAssembly 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 instructionsDo not let go of the handles Preparing to use the saw in the tree Using the chainsaw in the treeGeneral requirements working at height Securing the work position for two-handed useBasic cutting technique Limbing Felling technique for tree tops Felling directionDirectional cuts Felling cut 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 CarburetorCorrectly adjusted carburetor High speed jet HThrottle lockout Muffler StarterChanging a broken or worn starter cord Changing a broken recoil spring Air filterTensioning the recoil spring Fitting the starterSpark plug Adjustment of the oil pumpWhen making adjustments Lubricating the bar tip sprocketMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations, model 334T Bar and chain combinations, model 338XPTSaw chain filing and file gauges Federal and California Emissions Control Warranty Your Warranty Rights and ObligationsEmission Warranty Parts List Kickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautionsPage Page Original instructions 1153158-95

1153158-95 specifications

The Husqvarna 1153158-95, known for its robust performance and innovative features, is a standout product in the realm of outdoor power equipment. As part of Husqvarna's reputable lineup, this model showcases advanced technology designed to enhance user experience, efficiency, and safety.

One of the most remarkable features of the Husqvarna 1153158-95 is its powerful engine. Designed for optimal performance, the engine delivers enough power for a variety of tasks, from trimming grass to tackling more demanding landscaping jobs. This reliability ensures that users can complete their tasks efficiently without frequent interruptions.

Another key characteristic of the Husqvarna 1153158-95 is its ergonomic design. The handle is crafted to provide comfort during extended periods of use, reducing fatigue and enhancing control. This attention to user comfort demonstrates Husqvarna's commitment to creating products that cater to the needs of both casual users and professionals alike.

The innovation extends to the cutting technology used in the Husqvarna 1153158-95. Equipped with advanced cutting systems, this model promises clean and precise cuts, which minimizes damage to the grass and promotes healthier lawn growth. The adjustable cutting height feature allows users to customize their mowing experience to suit different types of grass and landscaping needs.

Additionally, the Husqvarna 1153158-95 incorporates safety features that significantly enhance user protection. The auto return stop switch is a standard feature that ensures the engine turns off automatically once the job is done, preventing any accidental activation. Furthermore, the machine's design includes safety guards to protect users from potential hazards while operating.

The technological aspects of the Husqvarna 1153158-95 do not stop with its physical features. Many models in the Husqvarna range also include Bluetooth connectivity for smart device integration, allowing users to track performance metrics and manage maintenance schedules conveniently. This tech-savvy approach positions the Husqvarna 1153158-95 as a forward-thinking choice for environmentally conscious consumers.

In conclusion, the Husqvarna 1153158-95 exemplifies the fusion of power, ergonomics, safety, and technology. With its range of advanced features, this model stands out as an excellent choice for those looking to enhance their outdoor maintenance activities. Husqvarna's dedication to quality and innovation ensures that users will not only meet their landscaping goals but also enjoy a safer and more comfortable experience.
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