Husqvarna 345e EPA II, 346XP EPA I, 353 EPA II manual Adjustment of the oil pump, Cooling system

Page 36

MAINTENANCE

Adjustment of the oil pump

(346XP/353)

The oil pump is adjustable. Adjustments are made by turning the screw using a screwdriver or combination spanner. The machine is supplied from the factory with the screw set to position 2. Turning the screw clockwise will reduce the oil flow and turning the screw anti-clockwise will increase the oil flow.

”Air Injection” centrifugal cleaning

Centrifugal cleaning means the following: All air to the carburetor passes through the starter. Dirt and dust is pushed out by the cooling fan.

2 1

3

+ –

IMPORTANT! In order to maintain operation of the centrifugal cleaning system it must be regularly maintained. Clean the air intake to the starter, the fins on the flywheel, the space around the flywheel, inlet pipe and carburetor compartment.

Recommended settings:

Bar 13"-15": Position 1

Bar 15"-18": Position 2

Bar 18"-20": Position 3

WARNING! The engine must be stopped

!when making adjustments.

Cooling system

To keep the working temperature as low as possible the machine is equipped with a cooling system.

The cooling system consists of:

1Air intake on the starter.

2Air guide plate.

3Fins on the flywheel.

4Cooling fins on the cylinder.

5Cylinder cover (directs cold air over the cylinder).

5

4

3

2

1

Clean the cooling system with a brush once a week, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder.

Note! The cooling system on a chain saw with catalytic converter must be cleaned daily. This is particularly important on chain saws with catalytic converters, because the higher exhaust temperature requires efficient cooling of the engine and the catalytic converter unit.

Heated handles

(346XPG, 353G)

On models with the model code XPG/G both the front handle bar and the rear handle are equipped with electrical heating coils. These are supplied with electricity from a generator built into the chain saw.

When the switch is pushed upwards, the heat is switched on. When the switch is pushed downwards, the heat is switched off.

Electrical carburetor heating

(346XPG, 353G)

If this chain saw is marked with Carburetor Heating then it is equipped with an electrically heated carburettor. The electrical heating prevents icing in the carburettor. A thermostat regulates heating so that the carburettor always has the correct working temperature.

Winter use

Running problems can occur when using the machine in the cold and snowy conditions caused by:

•Too low engine temperature.

•Icing of the air filter and carburetor. Special measures are therefore often required:

•Partly mask the air inlet on the starter to increase the working temperature of the engine.

•Preheat the intake air to the carburetor by using the heat from the cylinder.

36 – English

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Contents TrioBrake 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 Throttle lockout Chain catcherRight hand guard Vibration damping systemStop switch Cutting equipmentMuffler General rulesSharpening your chain and adjusting depth gauge setting Cutting equipment designed to reduce kickbackGeneral advice on adjusting depth gauge setting Adjustment of depth gauge settingSharpening cutting teeth Tensioning the chain 346XP TrioBrake, 353 TrioBrake345e TrioBrake Lubricating cutting equipment Chain oilFilling with chain oil Checking chain lubricationChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Assembly Fitting the bar and chain346XP TrioBrake, 353 TrioBrake 345e TrioBrakeAssembly Fuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingCold engine Warm engineStopping Basic safety rules Working TechniquesBefore use General working instructionsGeneral rules Basic cutting technique GeneralTerms Limbing CuttingTree felling technique Safe distanceFelling direction Clearing the trunk and preparing your retreatFelling Directional cutsGeneral advice Freeing a tree that has fallen badlyFreeing a trapped tree Cutting trees and branches that are in tensionHow to avoid kickback What is kickback?Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral Correctly adjusted carburetor High speed jet HChecking the brake trigger Muffler StarterChanging a broken or worn starter cord Replacement of broken recoil and drive disc springs Tensioning the recoil springFitting the starter Air filter Spark plugLubricating the bar tip sprocket Needle bearing lubricationAdjustment of the oil pump Air Injection centrifugal cleaningCooling system Heated handlesTemperature 0C 32F or colder Maintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations Saw chain filing and file gaugesFederal Emission Control Warranty Statement Your Warranty Rights and ObligationsAmerican Standard Safety Precautions Safety precautions for chain saw usersKickback safety precautions Other safety precautionsPage 1150389-95 ´z+RF¶5&¨ ´z+RF¶5&¨

345e EPA II, 346XP EPA I, 353 EPA II specifications

Husqvarna is a renowned name in outdoor power equipment, and its chainsaws exemplify performance, durability, and advanced technology. Among their impressive lineup, the Husqvarna 345e EPA II, 346XP EPA I, and 353 EPA II stand out due to their unique features and capabilities tailored for both professional and casual users.

The Husqvarna 345e EPA II is designed for optimal power-to-weight ratio, making it a favorite for professionals who need mobility without sacrificing performance. This model is powered by a 50.1 cc engine that delivers a robust 3.2 horsepower, providing ample power for demanding cutting tasks. The 345e features a lightweight design, which reduces fatigue during extended use. It also incorporates the X-Torq engine technology, which reduces fuel consumption and emissions, ensuring compliance with EPA regulations. Additionally, the chainsaw comes equipped with an inertia-activated chain brake for enhanced safety and a tool-less chain tensioning system for quick adjustments.

Next is the Husqvarna 346XP EPA I, a top choice for professional loggers and tree care specialists. This chainsaw features a 50.1 cc engine as well, but its unique design focuses on high performance and exceptional ergonomics. The 346XP is renowned for its rapid acceleration and high chain speed, which allow it to tackle tough cutting jobs with ease. Its Air Injection technology separates larger dust and debris, ensuring the air filter remains clean for longer periods, thereby reducing maintenance. This model is also equipped with the LowVib system that minimizes vibrations, enhancing user comfort during prolonged use.

Finally, the Husqvarna 353 EPA II is tailored for those seeking a middle ground between professional and casual use. This chainsaw features a 49.5 cc engine and balances power with user-friendly features. It is equipped with the same X-Torq engine technology found in the 345e, ensuring efficient fuel consumption and lower emissions. The 353 also boasts a well-designed handle for improved grip and control, making it ideal for various cutting tasks from firewood to felling trees. Its quick-release air filter makes maintenance straightforward, allowing users to focus more on their work.

Together, the Husqvarna 345e EPA II, 346XP EPA I, and 353 EPA II represent a blend of cutting-edge technology and user-oriented design, delivering reliability and performance, whether for professional use or home maintenance. Each model offers unique strengths, ensuring there is a perfect fit for every chainsaw user’s needs.
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