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

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MAINTENANCE

Engine Adjustment

Engine Speed

Your engine speed has been factory set. Do not attempt to increase engine speed or it may result in personal injury. If you believe that the engine is running too fast or too slow, take your lawn mower to an authorized service center for repair and adjustment.

Carburetor

Your carburetor is not adjustable. If your engine does not operate properly due to suspected carburetor problems, take your lawn mower to an authorized service center for repair and/or adjustment.

IMPORTANT: NEVER TAMPER WITH THE

ENGINE GOVERNOR, WHICH IS FACTORY

SET FOR PROPER ENGINE SPEED.

OVERSPEEDING THE ENGINE ABOVE

THE FACTORY HIGH SPEED SETTING

CAN BE DANGEROUS. IF YOU THINK THE

ENGINE-GOVERNED HIGH SPEED NEEDS

ADJUSTING, CONTACT YOUR NEAREST

AUTHORIZED SERVICE CENTER, WHICH

HAS PROPER EQUIPMENT AND

EXPERIENCE TO MAKE ANY NECESSARY

ADJUSTMENTS.

Cleaning and Washing

Regular cleaning and washing, especially under the mower deck, will increase the machine’s lifespan. Make it a habit to clean the machine directly after use (after it is cooled), before the dirt sticks.

Do not spray water on the top of the mower deck. Use compressed air to clean the top side of mower deck.

Use protective glasses when cleaning and washing.

Hardware

Check daily. Inspect the entire machine for loose or missing hardware.

English-40

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Contents Operators Manual OPERATOR’S Manual Push Mower Safety InstructionsIntroduction Introduction Introduction Manufacturing Number Good ServiceSymbols and Decals Symbols and DecalsXxxxxxx xxxx xxxxxxxx xxx Xxxx xxxxxx Distance from Safety Instructions Safety InstructionsGeneral Use Keep children away from the work area Do as follows Operating on SlopesDo not Children MaintenanceNever fill the fuel tank indoors Transport Customer responsibilities Controls ControlsFuel Shut Off Valve Engine SpeedOperator Presence Control OPC Choke Control All Models USE Full Throttle When MOWING, for best mower performanceThrottle 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 MaintenanceMaintenance Schedule Before Each Use General RecommendationsIgnition System Checking the Engines Cooling Air Intake Checking and Adjusting the Throttle Cable and Choke Cable Inspection Replacing Air FilterChecking Tires Replacing the Fuel FilterDrive Wheels Checking the V-belts Always use protective gloves when handling the bladeChecking the Blade Gear Case Blade replacementMuffler CleaningClean Under Drive Cover Grass CatcherTo Remove Drive Belt Adjusting the Lawn MowerTo Adjust Handle Rear DeflectorCleaning and Washing Engine AdjustmentHardware English-41 Engine Lubrication Mower Lubrication ChartLubrication LubricationTo Change Engine Oil Changing the Oil Filter Trouble Shooting Guide Trouble Shooting GuideProblem Cause English-45 112280 R2 03/06/07