Husqvarna 346XP EPA II, 353 EPA I manual Fuel Handling

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FUEL HANDLING

Fuel

CAUTION! The machine is equipped with a two-stroke engine and must always been run using a mixture of gasoline and two-stroke engine oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained. When mixing small amounts of fuel, even small inaccuracies can drastically affect the ratio of the mixture.

WARNING! Always ensure there is adequate

!ventilation when handling fuel.

Gasoline

This engine is certified to operate on unleaded gasoline.

Use good quality unleaded gasoline.

The lowest octane recommended is 87. If you run the engine on a lower octane than 87 it can result in knocking. This gives rise to a high engine temperature, which can result in serious engine damage.

When working with continuous high revs (e.g. limbing) a higher octane is recommended.

Two-stroke oil

For best results and performance use HUSQVARNA two- stroke oil, which is specially formulated for our two-stroke engines. Mixture 1:50 (2%).

Never use two-stroke oil intended for water-cooled outboard engines, sometimes referred to as outboard oil.

Never use oil intended for four-stroke engines.

Gasoline,

Two-stroke

oil, litre

litre

2% (1:50)

 

5

0,10

10

0,20

15

0,30

20

0,40

US gallon

US fl. oz.

1

2 1/2

2 1/2

6 1/2

5

12 7/8

Mixing

Always mix the gasoline and oil in a clean container intended for fuel.

Always start by filling half the amount of the gasoline to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture. Add the remaining amount of gasoline.

Mix (shake) the fuel mixture thoroughly before filling the machine’s fuel tank.

Do not mix more than one month’s supply of fuel at a time.

If the machine is not used for some time the fuel tank should be emptied and cleaned.

This engine is certified to operate on unleaded gasoline.

The following applies to chain saws with catalytic converters:

Gasoline

Always use high grade unleaded gasoline (minimum 95 ROZ). Leaded gasoline will destroy the catalytic converter and it will no longer serve its purpose. The green fuel cap on saws fitted with catalytic converters means that only unleaded gasoline can be used.

Two-stroke oil

For best results and performance use HUSQVARNA two- stroke oil, which is specially formulated for our two-stroke engines. Mixture 1:50 (2%).

WARNING! The catalytic converter muffler

!gets very hot during and after use. This also applies during idling. Be aware of the fire hazard, especially when working near flammable substances and/or vapours.

For additional information about fuels, see above.

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Contents Operator’s manual EPA Key to symbols KEY to SymbolsContents Please read the operator’s manual carefully Before using a new chain sawMachine′s safety equipment Safety InstructionsPersonal protective equipment Chain brake and front hand guard Throttle lock Stop switchChain catcher Right hand guardChecking brake band wear MufflerChecking the front hand guard Checking the inertia brake releaseThrottle lock Stop switchChain catcher Right hand guardGeneral rules Cutting equipmentCutting equipment designed to minimise kickback BarSome terms that describe the bar and chain Sharpening your chain and adjusting raker clearanceGeneral information on sharpening cutting teeth Setting the raker clearance General advice on setting raker clearanceSharpening cutting teeth Lubricating cutting equipment Tensioning the chainChain oil Filling with chain oilLubricating the bar tip sprocket Checking chain lubricationNeedle bearing lubrication Checking wear on cutting equipmentWhat is kickback? How to avoid kickbackGeneral safety precautions Starting Fuel safetyTransport and storage General working instructions Basic safety rulesBasic cutting technique GeneralCutting Limbing Tree felling techniqueSafe distance Felling directionDirectional cuts Felling Freeing a tree that has fallen badly General advice Cutting the trunk into logs Freeing a trapped treeWhat is what on the chain saw? What is WHAT?Fitting the bar and chain AssemblyFuel Fuel HandlingFollowing applies to chain saws with catalytic converters Fuelling Chain oilFuel Handling Starting and stopping Starting and StoppingCold engine Warm engineStopping Carburettor MaintenanceStarter Correctly adjusted carburettorChanging a broken or worn starter cord Tensioning the recoil springSpark plug Air filterMuffler Fitting the starterAir Injection centrifugal cleaning Adjustment of the oil pumpNeedle bearing lubrication Cooling systemTemperature -5C 23 F or colder Temperature 0 C 32 F or colderHeated handles Electrical carburettor heatingWeekly maintenance Daily maintenanceMonthly maintenance Below you will find some general maintenance instructionsTechnical data Technical DataBar Chain Length, inches Pitch, inch Max nose radius Your Warranty Rights and Obligations Federal Emission Control Warranty StatementEmission Control Warranty Parts List 1140204-95