Husqvarna 1150901-95 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.

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 Operator’s manual 357XP EPA I 359 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 sawAlways use common sense Machine′s safety equipment Personal protective equipmentChain brake and front hand guard General Safety Precautions Right hand guard Throttle lockoutChain catcher Vibration damping systemMuffler Stop switchCutting equipment General rulesCutting equipment designed to reduce kickback BarChain Sharpening 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 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 instructionsGeneral rules Basic cutting technique TermsLimbing Felling direction Tree felling techniqueSafe distance Clearing the trunk and preparing your retreatFelling Directional cutsFelling cut Freeing a tree that has fallen badly Freeing a trapped treeCutting trees and branches that are in tension General advice How to avoid kickbackWhat is kickback? Cutting the trunk into logsMaintenance Carburetor adjustmentGeneral Correctly adjusted carburetor High speed jet HChecking the brake trigger ImmediatelyMuffler Tensioning the recoil spring StarterChanging a broken or worn starter cord Changing a broken recoil springLubricating the bar tip sprocket Air filterSpark plug Fitting the starterWhen making adjustments Adjustment of the oil pumpAir Injection centrifugal cleaning Needle bearing lubricationHeated handles Temperature 0C 32F or colderWinter use Electrical carburetor heatingMaintenance 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 orKickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautions1150901-95

1150901-95 specifications

The Husqvarna 1150901-95 is a powerful and versatile chainsaw designed for both professional and home use. Known for its reliability and high-performance capabilities, this model stands out in the market for its advanced features and user-friendly design.

One of the main features of the Husqvarna 1150901-95 is its lightweight design. Weighing in at just 10.8 pounds, it provides excellent maneuverability, allowing users to handle various cutting tasks with ease. This makes it an ideal choice for homeowners who need a saw for occasional yard work as well as for professionals who require a tool that won’t fatigue them during long hours of operation.

Powering this chainsaw is a robust 40.9 cc X-Torq engine, which delivers a strong power-to-weight ratio. This engine technology ensures that users receive excellent fuel efficiency, helping reduce emissions while maximizing performance and cutting speed. The X-Torq technology provides significant torque at lower RPMs, allowing for smooth cutting through tough wood without bogging down the engine.

The Husqvarna 1150901-95 also features a revolutionary Air Injection system, which is designed to remove larger dust and debris particles before they reach the air filter. This innovation ensures that the engine maintains optimal performance even in challenging conditions, reducing the frequency of air filter cleaning and extending the lifespan of the saw.

Another key characteristic is the chainsaw's ergonomic design. It comes with an adjustable handle for enhanced comfort, allowing users to maintain a secure grip and better control over the saw while performing various cuts. The anti-vibration technology further minimizes fatigue, making it easier to handle for extended periods.

Safety is a priority with the Husqvarna 1150901-95, which includes features such as a chain brake that helps prevent injuries by stopping the chain instantly in the event of kickback. The saw also boasts a low kickback chain, which provides added protection during use.

In summary, the Husqvarna 1150901-95 is a well-rounded chainsaw that combines lightweight design, powerful performance, and innovative technologies. With its user-friendly features and commitment to safety, it is a reliable tool for anyone looking to tackle cutting tasks efficiently and confidently. Whether you are a seasoned professional or a weekend warrior, this chainsaw is built to meet your needs.
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