Husqvarna 545, 550XPG manual Air Injection centrifugal cleaning, Winter use, Heated handles

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MAINTENANCE

”Air Injection” centrifugal cleaning

Centrifugal cleaning means the following: All air to the carburettor passes through the starter. Dirt and dust is centrifuged out by the cooling fan.

IMPORTANT! In order to maintain operation of the centrifugal cleaning system it must be regularly maintained. Clean the air intake to the starter, the fins on the flywheel, the space around the flywheel, inlet pipe and carburettor compartment.

Winter use

Running problems can occur when using the machine in the cold and snowy conditions caused by:

•Too low engine temperature.

•Icing of the air filter and carburettor. Special measures are therefore often required:

•Partly mask the air inlet on the starter to increase the working temperature of the engine.

•Preheat the intake air to the carburettor by using the heat from the cylinder.

Temperature 0°C or colder:

The intermediate wall is designed so it can be adjusted for running in cold weather, so that preheated air from the cylinder can pass into the carburettor space preventing icing of the air filter, etc. Lift off the air filter to obtain better access. Use a screwdriver to carefully knock away the plug in the partition.

For temperatures below -5°C and/or in snow conditions a special cover is available, which is mounted on the starter housing.

Part number: 522 98 66-01.

These reduce the flow of cooling air and prevent large amounts of snow from being sucked into the carburettor space.

IMPORTANT! If the temperature rises above -5°C or 0°C respectively, the starter housing cover MUST be removed and the accompanying plug, art. no. 503 40 59-01 fitted in the hole in the partition wall. Otherwise there is a risk of overheating, resulting in severe damage to the engine.

Heated handles

550XPG, 550XPG TrioBrake

On models with the model code XPG both the front handle bar and the rear handle are equipped with electrical heating coils. These are supplied with electricity from a generator built into the chain saw.

When the switch is pushed upwards, the heat is switched on. When the switch is pushed downwards, the heat is switched off.

Electrical carburettor heating

550XPG, 550XPG TrioBrake

On models with the designation XPG there is an electrically heated carburettor. Electrically powered heating prevents ice formation in the carburettor. A thermostat regulates the heating so that the carburettor always has the right working temperature.

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Contents Operator′s manual Decompression valve KEY to SymbolsSymbols on the machine Symbols 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 Vibration damping system Throttle lockoutChain catcher Right hand guardGeneral rules Stop switchCutting equipment MufflerCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge setting Cause serious or even fatal injury Adjustment of depth gauge settingTensioning the chain Lubricating cutting equipmentNeedle bearing lubrication Filling with chain oilChecking chain lubrication Chain drive sprocketChecking wear on cutting equipment Working with the chain AssemblyFitting the bar and chain Fitting a spike bumperFuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageCold engine Starting and StoppingStarting and stopping StartingStopping General working instructions Basic safety rulesWorking Techniques Before useWorking Techniques Limbing Basic cutting techniqueTerms Felling direction Tree felling techniqueSafe distance Your saw Clearing the trunk and preparing your retreatFelling cut Felling Training we advise you not to fell treesCutting trees and branches that are in tension General adviceFreeing a tree that has fallen badly Freeing a trapped treeCutting the trunk into logs How to avoid kickbackWhat is kickback? General MaintenanceCarburettor adjustment Immediately Checking the inertia brake releaseChecking the brake trigger Muffler Tensioning the recoil spring StarterChanging a broken or worn starter cord Fitting the starter Air filterSpark plug Changing a broken recoil springNeedle bearing lubrication Adjustment of the oil pumpRunning when making adjustments Lubricating the bar tip sprocketHeated handles Air Injection centrifugal cleaningTemperature 0C or colder Winter useDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical Data550XP TrioBrake 550XPG Saw chain filing and file gauges Guide bar and chain combinationsEN ISO 12100-2/A12009, Cispr 122007, EN ISO EC-declaration of conformityApplies to Europe only Page Page
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