Husqvarna W21K, W21SK, W21SBK, W53SBEK, W53SEK, W21KC, W21SKC, W21SBKC manual Replacing Air Filter

Page 37

MAINTENANCE

Replacing Air Filter

If the engine seems weak or runs unevenly, the air filter may be clogged. If run with a dirty air filter, the spark plugs can become fouled, disturbing operation.

For this reason, it is important to replace the air filter regularly (see the heading Maintenance Schedule for the proper service interval).

To clean/replace the air filter:

WARNING!

Allow the exhaust system to cool before performing service. Risk for burns.

IMPORTANT INFORMATION

Operating the engine without an air filter, or with a damaged air filter, will allow dirt to enter the engine, causing rapid engine wear. This type of damage is not covered by the Distributor’s Limited Warranty.

Inspection

Push up latches on the sides of the air cleaner case. Remove the air cleaner cover and inspect the filter elements. Clean or replace dirty filter elements. Always replace damaged filter elements.

1.Remove the paper and foam elements.

2.Inspect both air filter elements and replace them if they are damaged. Always replace the paper filter element at the scheduled interval (200 hours).

3.To clean the foam element wash in detergent and warm water, and let the element air-dry thoroughly before installing it.

4.To clean the paper element, tap it gently on a flat surface to remove dust.

5.Clean the housing with detergent and water and dry thoroughly.

1

2

3

Air Filter Assembly

8019-019

 

1.Air filter cover

2.Paper filter

3.Foam filter

IMPORTANT INFORMATION

Do not use compressed air to clean the paper element. Do not oil the paper or foam elements

English-34

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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 replacementClean Under Drive Cover CleaningGrass Catcher MufflerTo Adjust Handle Adjusting the Lawn MowerRear Deflector To Remove Drive BeltCleaning and Washing Engine AdjustmentHardware English-41 Lubrication Mower Lubrication ChartLubrication Engine LubricationTo Change Engine Oil Changing the Oil Filter Trouble Shooting Guide Trouble Shooting GuideProblem Cause English-45 112280 R2 03/06/07
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