Husqvarna 1150901-95 manual Fuel Handling

Page 18

FUEL HANDLING

Fuel

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

 

 

 

 

 

Gasoline

•Use good quality unleaded gasoline.

•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 87 ((RON+MON)/2). If you run the engine on a lower octane grade than 87 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 or environmental fuel for four-stroke engines blended with two-stroke oil as set out below. Note that carburetor adjustment may be necessary when changing the type of fuel (see instructions under the heading Carburetor).

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.

Mixing ratio

1:50 (2%) for all engines.

Gasoline, litre

Two-stroke oil, litre

 

 

 

2% (1:50)

 

 

5

0,10

 

 

10

0,43/0,20

 

 

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.

Chain oil

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

18 – English

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Contents
Operator’s manual 357XP EPA I 359 EPA KEY to Symbols Symbols on the machineSymbols in the operator’s manual EPA 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 Right hand guard Throttle lockoutChain catcher Vibration damping systemMuffler Stop switchCutting equipment General rulesCutting equipment designed to reduce kickback BarChain Sharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipment Filling with chain oilChecking chain lubrication Chain drive sprocket Needle bearing lubricationChecking 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 instructionsGeneral rules Basic cutting technique TermsLimbing Felling direction Tree felling techniqueSafe distance Clearing the trunk and preparing your retreatFelling Directional cutsFelling cut Freeing a tree that has fallen badly Freeing a trapped treeCutting trees and branches that are in tension General advice How to avoid kickbackWhat is kickback? Cutting the trunk into logsMaintenance Carburetor adjustmentGeneral Correctly adjusted carburetor High speed jet HChecking the brake trigger ImmediatelyMuffler Tensioning the recoil spring StarterChanging a broken or worn starter cord Changing a broken recoil springLubricating the bar tip sprocket Air filterSpark plug Fitting the starterWhen making adjustments Adjustment of the oil pumpAir Injection centrifugal cleaning Needle bearing lubricationHeated handles Temperature 0C 32F or colderWinter use Electrical carburetor heatingMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations 050058 Saw chain filing and file gauges Federal Emission Control Warranty Statement Repair or Replacement of Parts Repair orKickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautions1150901-95