Husqvarna 965168601, 965167936, 965167501 manual Fuel Handling

Page 19

FUEL HANDLING

Fuel

Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of petrol and two- stroke 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.

Petrol

Use good quality unleaded or leaded petrol.

CAUTION! Engines equipped with catalytic converters must be run on unleaded fuel mixtures. 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.

The lowest recommended octane grade is 90 (RON). If you run the engine on a lower octane grade than 90 so-called knocking can occur.This gives rise to a high engine temperature and increased bearing load, which can result in serious engine damage.

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

Environment fuel

HUSQVARNA recommends the use of alkylate fuel, either Aspen two-stroke fuel or environmental fuel for four-stroke engines blended with two-stroke oil as set out below. Note that carburettor adjustment may be necessary when changing the type of fuel (see the instructions under the heading Carburettor).

Running-in

Avoid running at a too high speed for extended periods during the first 10 hours.

Two-stroke oil

For best results and performance use HUSQVARNA two-stroke engine oil, which is specially formulated for our air-cooled two-stroke engines.

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

Never use oil intended for four-stroke engines.

A poor oil quality and/or too high oil/fuel ratio may jeopardise function and decrease the life time of catalytic converters.

115 10 82-26 Rev.2 2008-06-03

Mixing ratio

1:50 (2%) with HUSQVARNA two-stroke oil.

1:33 (3%) with oils class JASO FB or ISO EGB formulated for air-cooled, two-stroke engines.

Petrol, litre

Two-stroke oil, litre

 

 

 

 

2% (1:50)

3% (1:33)

 

 

 

5

0,10

0,15

 

 

 

10

0,20

0,30

 

 

 

15

0,30

0,45

 

 

 

20

0,40

0,60

 

 

 

Mixing

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

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

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.

Chain oil

We recommend the use of special oil (chain oil) with good adhesion characteristics.

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 19

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Contents English 435 435e 440eSymbols on the machine KEY to SymbolsSymbols in the operator’s manual Contents Dear Customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsChain brake and front hand guard Machine′s safety equipmentAlways use common sense Personal protective equipmentGeneral Safety Precautions Chain catcher Throttle lockoutMuffler Stop switchRight hand guard Vibration damping systemGeneral rules Cutting equipmentCutting equipment designed to reduce kickback General information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain 435e, 440e 435Checking chain lubrication Lubricating cutting equipmentWhich could lead to serious, even fatal injuries Chain oil Filling with chain oilNeedle bearing lubrication Chain drive sprocketChecking wear on cutting equipment 435e, 440e AssemblyFitting the bar and chain 435Fitting a spike bumper Fuel Fuel HandlingLong-term storage Fuel safetyFuelling Transport and storageStarting and stopping Starting and StoppingStarting Stopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Terms Basic cutting techniqueLimbing Tree felling techniqueSafe distance Clearing the trunk and preparing your retreat Felling directionDirectional cuts Felling cut Cutting trees and branches that are in tension General adviceFreeing a tree that has fallen badly Freeing a trapped treeWhat is kickback? How to avoid kickbackCutting the trunk into logs Carburettor adjustment MaintenanceGeneral Immediately Checking the inertia brake releaseMuffler Replacing the starter cord StarterTensioning the recoil spring Replacing the return and drive springs Air filterFitting the starter Cooling system Spark plugLubricating the bar tip sprocket Needle bearing lubricationTemperature -5C or colder Air Injection centrifugal cleaningWinter use Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinationsApplies to Europe only EC-declaration of conformityEN ISO 12100-22003, Cispr 122005, EN ISO ´z+S6¶68¨ Page 1151082-26