Husqvarna 1153163-95 manual High speed jet H, Correctly adjusted carburetor

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MAINTENANCE

!

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.

High speed jet H

At the factory the engine is adjusted at sea level. When working at a high altitude or in different weather conditions, temperatures and atmospheric humidity, it may be necessary to make minor adjustments to the high speed jet.

CAUTION! If the high speed jet is screwed in too far, it may damage the piston/cylinder.

When test run at the factory, the high speed jet is set so that the engine satisfies the applicable legal requirements at the same time as achieving maximum performance. The carburetor’s high speed jet is then locked using a limiter cap in the fully screwed out position. The limiter cap limits the potential to adjust the high speed jet to at most half a turn.

Correctly adjusted carburetor

When the carburetor is correctly adjusted the machine accelerates without hesitation and the machine 4-cycles a little at max. speed. It is also important that the chain does not rotate at idle. If the L-jet is set too lean it may cause starting difficulties and poor acceleration. If the H-jet is set too lean the machine will have less power, poor acceleration and could suffer damage to the engine.

Checking, maintaining and servicing chain saw safety equipment

Note! All servicing and repair work on the machine requires special training. This is especially true of the machine′s safety equipment. If your machine fails any of the checks described below we recommend you to contact our servicing dealer.

Chain brake and front hand guard

Checking brake band wear

Brush off any wood dust, resin and dirt from the chain brake and clutch drum. Dirt and wear can impair operation of the brake.

Regularly check that the brake band is at least 0.024 inch (0.6 mm) thick at its thinnest point.

Checking the front hand guard

Make sure the front hand guard is not damaged and that there are no visible defects such as cracks.

Move the front hand guard forwards and back to make sure it moves freely and that it is securely anchored to the clutch cover.

Checking the inertia brake release

With the engine turned off, hold the chain saw over a stump or other firm object. Let go of the front handle so that the bar drops towards the stump as the chain saw rotates around the rear handle.

When the bar hits the stump the brake should be applied.

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Contents English 346XP, 346XPG, 346XP Tech 353, 353GSymbols on the machine KEY to SymbolsSymbols in the operator’s manual EPA Contents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsAlways use common sense Personal protective equipment Machine′s safety equipmentChain brake and front hand guard General Safety Precautions Vibration damping system Throttle lockoutChain catcher Right hand guardGeneral rules Stop switchCutting equipment MufflerBar Cutting equipment designed to reduce kickbackChain General information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain Lubricating cutting equipment Checking wear on cutting equipment Needle bearing lubricationFitting the bar and chain AssemblyWorking with the chain Fuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageWarm engine Starting and StoppingStarting and stopping Cold engineStopping General working instructions Basic safety rulesWorking Techniques Before useCleaning Clutch cover causing the chain toJam. Always stop the engine before Terms Basic cutting techniqueLimbing Clearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionFelling cut Directional cuts Cutting trees and branches that are in tension General advice Freeing a tree that has fallen badly Freeing a trapped treeWhat is kickback? How to avoid kickbackCarburetor adjustment MaintenanceGeneral High speed jet H Correctly adjusted carburetorChecking the brake trigger Starter MufflerChanging a broken or worn starter cord Fitting the starter Air filterTensioning the recoil spring Changing a broken recoil springNeedle bearing lubrication Adjustment of the oil pumpSpark plug Lubricating the bar tip sprocketCooling system Air Injection centrifugal cleaningTemperature 0C 32F or colder When making adjustmentsElectrical carburetor heating Heated handles346XPG, 353G Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical Data050 Bar and chain combinationsSaw chain filing and file gauges Recommended cutting equipment for CanadaYour Warranty Rights and Obligations Federal Emission Control Warranty StatementOther safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Kickback safety precautionsPage Original instructions 1153163-95
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