Husqvarna 338XPT EPA III, 1151375-95 manual High speed jet H, Correctly adjusted carburetor

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MAINTENANCE

High speed jet H

•The high speed jet H affects the power and speed of the machine. If the high speed jet is set too lean (screwed in too far) it will cause the machine to over- rev and damage the engine. Turn the high speed jet H anticlockwise until it stops. If the engine runs unevenly, turn the high speed jet clockwise until the engine runs evenly.

•The high speed jet H is correctly adjusted when the machine burbles slightly. If the machine ”screams”, the setting is too lean. If the muffler emits a lot of smoke and the machine burbles a lot, the setting is too rich. Turn the high speed jet H clockwise to achieve a setting that sounds right.

CAUTION! To adjust the carburetor correctly you should contact a mechanic with access to a rev counter.

Correctly adjusted carburetor

When the carburetor is correctly adjusted the machine accelerates without hesitation and the machine 4-cycles a little at maximum 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. 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 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 brake trigger

Place the chain saw on firm ground and start it. Make sure the chain does not touch the ground or any other object. See the instructions under the heading Start and stop.

Grasp the chain saw firmly, wrapping your fingers and thumbs around the handles.

Apply full throttle and activate the chain brake by tilting your left wrist forward onto the front hand guard. Do not let

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Contents 334T 338XPT EPA III, Carb Symbols in the operator’s manual KEY to SymbolsSymbols on the machine You will find the following labels on your chain sawContents 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 Sharpening your chain and adjusting depth gauge settingCutting equipment designed to reduce kickback ChainGeneral advice on adjusting depth gauge setting Increased if the depth gauge setting isToo large Lubricating cutting equipment Adjustment of depth gauge settingTensioning the chain Bar and cause serious or even fatal injuryFilling with chain oil Checking chain lubricationChain drive sprocket Checking 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 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 Felling technique for tree tops Log is supported at both ends. There is a high riskLimbing Felling direction Directional cutsFelling cut General advice Freeing a tree that has fallen badlyCutting trees and branches that are in tension How to avoid kickback What is kickback?Cutting the trunk into logs Maintenance CarburetorChecking brake band wear Correctly adjusted carburetorHigh speed jet H Checking the front hand guardImmediately 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 Your Warranty Rights and Obligations What is not Covered Kickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautionsPage ´z+SE¶5j¨ Page 1151375-95

1151375-95, 338XPT EPA III specifications

The Husqvarna 338XPT is a powerful chainsaw designed specifically for professionals who require reliability and performance in demanding environments. One of its standout features is the lightweight design, making it easy to maneuver while still delivering impressive power. Weighing in at just over 10 pounds, the 338XPT allows users to work for extended periods without fatigue, making it an ideal choice for arborists and forestry workers.

At the heart of the Husqvarna 338XPT is its efficient engine, which not only provides robust cutting performance but is also designed with EPA III compliance in mind. This means the machine adheres to strict environmental regulations, producing lower emissions while ensuring a high power output. The X-Torq engine technology is one of the key innovations that contribute to its efficiency. This technology reduces fuel consumption by up to 20% while also decreasing harmful exhaust emissions. This dual benefit makes the 338XPT a viable option for users who prioritize both performance and environmental responsibility.

Another notable characteristic of the Husqvarna 338XPT is its advanced air filtration system, which enhances the durability of the engine by ensuring that only clean air reaches it. The centrifuge air cleaning system significantly prolongs the time between filter cleanings, allowing users to focus more on their work and less on maintenance. This feature is particularly beneficial in dusty or dirty job sites, ensuring optimal performance in various conditions.

Comfort and usability are also central to the design of the 338XPT. The chainsaw includes an ergonomic handle that allows for better control during operation, reducing vibrations and enhancing user comfort. Additionally, the chainsaw's easy-access chain tensioning system makes adjusting the chain as simple as possible, ensuring that users can quickly get back to their tasks at hand without unnecessary delays.

For safety-conscious users, the Husqvarna 338XPT is equipped with features like a combined choke/stop control that allows for easy starting and reduces the risk of engine flooding. Furthermore, the chainsaw's inherent balance and lightweight structure contribute to safer handling and operation.

In summary, the Husqvarna 338XPT EPA III is a top-of-the-line chainsaw that combines power, efficiency, and user-friendly features, making it a prime choice for professionals in the forestry and arborist fields. Its robust engine technology, advanced air filtration, and ergonomic design ensure that you can tackle any job with confidence and ease.
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