Manuals / Husqvarna / Lawn and Garden / Chainsaw

Husqvarna 455 RANCHER Lubricating the bar tip sprocket, Needle bearing lubrication, Maintenance

Models: 455 RANCHER

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Lubricating the bar tip sprocket

MAINTENANCE

that the electrode gap is 0.5 mm. The spark plug should be replaced after about a month in operation or earlier if necessary.

Note! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/cylinder. Check that the spark plug is ﬁtted with a suppressor.

Lubricating the bar tip sprocket

Lubricate the bar tip sprocket each time you refuel. Use the special grease gun and a good quality bearing grease.

Needle bearing lubrication

The clutch drum has a needle bearing on the output shaft. This needle bearing must be lubricated regularly (once a week).

When lubricating, remove the clutch cover by loosening the two bar nuts. Lay the saw on its side with the clutch drum upwards.

Lubrication involves engine oil dripping into the centre of the clutch drum as it rotates.

Adjustment of the oil pump

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.

Recommended settings:

Bar 13"-15": Position 1

Bar 15"-18": Position 2

Bar 18"-20": Position 3

These recommendations apply to Husqvarna’s chain oil, for other chain oils increase the oil ﬂow by one step.

WARNING! The engine must not be running

!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).

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.

34 – English

Image 34

Husqvarna 455 RANCHER manual Lubricating the bar tip sprocket, Needle bearing lubrication, Adjustment of the oil pump

Contents

Operator′s manual 455 RancherEnglish Symbols on the machine KEY TO SYMBOLSSymbols in the operator’s manual KEY TO SYMBOLS CONTENTSContents CONTENTSINTRODUCTION Dear CustomerWhat is what on the chain saw? WHAT IS WHAT?20 19 WARNING! Faulty cutting equipment or the GENERAL SAFETY PRECAUTIONSBefore using a new chain saw Always use common senseChain brake and front hand guard Machine′s safety equipmentPersonal protective equipment WARNING! Most chain saw accidentsGENERAL SAFETY PRECAUTIONS 8 - EnglishChain catcher Will my hand always activate the chain brake during a kickback?Throttle lock Right hand guardMufﬂer Stop switchCutting equipment General rulesSome terms that describe the bar and chain Cutting equipment designed to reduce kickbackChain WARNING! Any contact with a rotating sawif the depth gauge setting is too large Sharpening your chain and adjusting depth gauge settingGeneral advice on adjusting depth gauge setting General information on sharpening cutting teethLubricating cutting equipment Adjustment of depth gauge settingTensioning the chain Chain oilNeedle bearing lubrication Checking chain lubricationChain drive sprocket Checking wear on cutting equipmentCheck regularly happen when the chain touches the operatorGENERAL SAFETY PRECAUTIONS WARNING! Most chain saw accidentsFitting the bar and chain ASSEMBLYWARNING! Always wear gloves, when working with the chain Fitting a spike bumperFuel ventilation when handling fuelFUEL HANDLING PetrolFuelling Fuel safetyWARNING! Taking the following precautions will lessen the risk of ﬁre Transport and storageCold engine STARTING AND STOPPINGStarting and stopping Warm engineSTARTING AND STOPPING StoppingWARNING! Long term inhalation of the Before use Basic safety rulesWORKING TECHNIQUES General working instructionsGeneral rules WORKING TECHNIQUESHave control over the workpiece Terms Basic cutting techniqueGeneral WARNING! Never use a chain saw by holdingWARNING! Never attempt to cut logs while LimbingCutting The log is supported at one end. There is a high risk that itFelling direction Tree felling techniqueSafe distance Clearing the trunk and preparing your retreatDirectional cuts FellingWARNING! Unless you have special training Felling cutFreeing a ”trapped tree” General adviceFreeing a tree that has fallen badly Cutting trees and branches that are in tensionCutting the trunk into logs How to avoid kickbackWhat is kickback? WARNING! Kickback can happen veryBasic settings and running in MAINTENANCECarburettor adjustment Fine adjustmentHigh speed jet H Correctly adjusted carburettorWhen the bar hits the stump the brake should be applied Checking brake band wearThrottle lock MAINTENANCEStop switch Chain catcherStarter WARNING! When the recoil spring is woundMufﬂer Changing a broken or worn starter cordTensioning the recoil spring Air ﬁlterSpark plug Changing a broken recoil springLubricating the bar tip sprocket Adjustment of the oil pumpWARNING! The engine must not be running when making adjustments Needle bearing lubricationTemperature -5C or colder ”Air Injection” centrifugal cleaningTemperature 0C or colder Winter useWeekly maintenance Maintenance scheduleDaily maintenance Monthly maintenanceWeight TECHNICAL DATATechnical data EngineLength, inches Bar and chain combinationsChain Pitch, inchEN ISO 12100-22003, CISPR 122001, EN ISO EC-declaration of conformityApplies to Europe only TECHNICAL DATA1140247-26 ´z+H8h¶6S¨ ´z+H8h¶6S¨