Husqvarna W21K, W21SK, W21SBK, W53SBEK, W53SEK, W21KC, W21SKC, W21SBKC manual

Page 35

MAINTENANCE

using a spark plug wrench so that the washer is compressed. A used spark plug should be turned 1/8 of a turn from the seated position. A new spark plug should be turned 1/4 a turn from the seated position.

Replace the ignition cable.

Checking the Engine's Cooling Air Intake

Check that the engine’s cooling air intake is free from leaves, grass, and dirt.

If the cooling air intake is clogged, engine cooling deteriorates, which can lead to engine damage.

8011-719

Check and clean the cooling air intake

English-32

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Contents Operators Manual Introduction Safety InstructionsOPERATOR’S Manual Push Mower Introduction Introduction Manufacturing Number Good ServiceXxxxxxx xxxx xxxxxxxx xxx Xxxx xxxxxx Symbols and DecalsSymbols and Decals Distance from General Use Safety InstructionsSafety Instructions Keep children away from the work area Do not Operating on SlopesDo as follows Children MaintenanceNever fill the fuel tank indoors Transport Customer responsibilities Controls ControlsOperator Presence Control OPC Engine SpeedFuel Shut Off Valve Throttle Control All Models USE Full Throttle When MOWING, for best mower performanceChoke Control All Models Blade Brake Control BBC Ground Drive Bail Cutting heightShut Off Engine To Empty Grass Catcher To Convert MowerEnglish-20 Before Starting Engine OperationTo Start Engine Mowing Transmission SelectorBlade in short cut grass or over a hard level Release OPC bail Self Propelled Models Only Set throttle control to high speed Push Models Only Mowing Tips Mulching Mowing Tips Maintenance Schedule MaintenanceMaintenance Ignition System General RecommendationsBefore Each Use Checking the Engines Cooling Air Intake Checking and Adjusting the Throttle Cable and Choke Cable Inspection Replacing Air FilterDrive Wheels Replacing the Fuel FilterChecking Tires Checking the Blade Always use protective gloves when handling the bladeChecking the V-belts Gear Case Blade replacementMuffler CleaningClean Under Drive Cover Grass CatcherTo Remove Drive Belt Adjusting the Lawn MowerTo Adjust Handle Rear DeflectorHardware Engine AdjustmentCleaning and Washing English-41 Engine Lubrication Mower Lubrication ChartLubrication LubricationTo Change Engine Oil Changing the Oil Filter Problem Cause Trouble Shooting GuideTrouble Shooting Guide English-45 112280 R2 03/06/07