Husqvarna 3120XP manual Fuel Handling, Gasoline, Two-strokeoil, Mixing, Chain oil

Page 25
FUEL HANDLING

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, litre

Two-stroke oil, 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.

Chain oil

The chain lubrication system is automatic and we recommend the use of special oil (chain oil) with good adhesion characteristics.

In countries where no special chain oil is available, EP90 transmission oil can be used.

Never use waste oil. This results in damage to the oil pump, the bar and the chain.

It is important to use oil of the right grade (suitable viscosity range) to suit the air temperature.

In temperatures below 0°C (32°F) some oils become too viscous. This can overload the oil pump and result in damage to the oil pump components.

Contact your service agent when choosing chain oil.

English – 25

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Contents Operator’s manual EPA 3120XPEnglish Key to symbols KEY TO SYMBOLSContents CONTENTSBefore using a new chain saw Machine′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 MufflerSome terms that describe the bar and chain ChainSharpening cutting teeth General information on sharpening cutting teethWARNING! The following faults will increase WARNING! The risk of kickback is increasedSetting the raker clearance General advice on setting raker clearanceTensioning the chain Chain oil Lubricating cutting equipmentFilling with chain oil Checking chain lubricationChain drive sprocket Checking wear on cutting equipmentWhat is kickback? How to avoid kickbackStarting General safety precautionsBasic safety rules Fuel safetyGeneral working instructions Transport and storageGeneral Basic cutting techniqueTerms Cutting 12 3Limbing Safe distance Tree felling techniqueFelling direction Clearing the trunk and preparing your retreatWARNING! Unless you have special training Felling cutFreeing a tree that has fallen badly General adviceCutting the trunk into logs Freeing a ”trapped tree”What is what on the chain saw? WHAT IS WHAT?Fitting the bar and chain ASSEMBLYFuel FUEL HANDLINGGasoline Two-strokeoilFuelling Starting and stopping STARTING AND STOPPINGCold engine Warm engine28 – English StoppingFunction, Basic settings, Fine adjustment MAINTENANCEBasic settings and running in Fine adjustmentStarter Correctly adjusted carburettorHigh speed jet H Changing a broken or worn starter cordSpark plug Air filterFitting the starter Muffler Adjustment of the oil pumpNeedle bearing lubrication Extra chain oilMonthly maintenance Weekly maintenanceDaily maintenance Cooling systemTechnical data TECHNICAL DATALength, inches ChainPitch, inch Max nose radiusYOUR WARRANTY RIGHTS AND OBLIGATIONS FEDERAL EMISSION CONTROL WARRANTY STATEMENTMANUFACTURER′S WARRANTY COVERAGE OWNER′S WARRANTY RESPONSIBILITIESPage ´z+H7=¶5y¨ ´z+H7=¶5y¨ Page 1140232-95 ´z+H7=¶5y¨ ´z+H7=¶5y¨
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