Husqvarna 1153183-26 manual High speed jet H, Correctly adjusted carburettor

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MAINTENANCE

High speed jet H

This chain saw is equipped with a carburettor that has a built-in fixed high speed jet.

CAUTION! There is an integrated speed governor in the ignition that limits the maximum speed to 12,000 rpm. Adjusting the jet therefore has no effect on the maximum speed. The high speed jet affects the chain saw’s power.

CAUTION! Setting the high speed jet too lean reduces the engine’s power and causes overheating. This results in engine damage.

Correctly adjusted carburettor

When the carburettor is correctly adjusted the machine accelerates without hesitation and burbles a little at full throttle. 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. If the L and H-jets are set too rich it will lead to acceleration problems or too low a working speed.

Checking, maintaining and servicing chain saw safety equipment

Note! All service and repair work on the machine demands special training. This is especially true of the machine’s safety equipment. If your machine fails any of the checks described below we recommend that you take it to your service workshop.

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 0.6 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

Place the chain saw, with the engine switched off, on a stump or other stable surface. Release the front handle and let the saw fall by its own weight, rotating around the rear handle towards the stump.

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

30 – English

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Contents 3120XP KEY to Symbols Symbols on the machineSymbols in the operator’s manual 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 rulesChain Sharpening your chain and adjusting depth gauge settingBar General information on sharpening cutting teethIncreased if the depth gauge setting is Adjustment of depth gauge settingToo large Cause serious or even fatal injury Tensioning the chainLubricating cutting equipment Filling with chain oilNeedle bearing lubrication Checking chain lubricationChain drive sprocket Checking wear on cutting equipmentBar Assembly Fitting the bar and chainWorking with the chain Fuel Handling FuelFuel safety FuellingExtra chain oil Transport and storage Long-term storageCold engine Starting and StoppingStarting and stopping Warm engineStopping Before use Basic safety rulesWorking Techniques General working instructionsWorking Techniques Basic cutting technique TermsLimbing Tree felling technique Safe distanceFelling direction Clearing the trunk and preparing your retreat Felling cutDirectional cuts Freeing 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 CarburettorCorrectly adjusted carburettor High speed jet HChecking the brake trigger Muffler StarterChanging a broken or worn starter cord Tensioning the recoil spring Changing a broken recoil springFitting the starter Air filter Spark plugLubricating the bar tip sprocket Needle bearing lubrication Adjustment of the oil pumpRunning when making adjustments Cooling systemMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations Saw chain filing and file gaugesEN ISO 12100-22003, Cispr 122005, EN ISO EC-declaration of conformityApplies to Europe only 0404/09/2119Page Page Page Page Original instructions 1153183-26
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