Husqvarna W21K, W21SK, W21SBK, W53SBEK, W53SEK, W21KC, W21SKC, W21SBKC Trouble Shooting Guide

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TROUBLE SHOOTING GUIDE

Trouble Shooting Guide

Problem

Cause

 

 

 

 

 

The engine will not start.

Dirty air filter.

 

 

Out of fuel.

 

 

Stale fuel.

 

 

Water in fuel.

 

 

• Spark plug wire is disconnected.

 

 

Bad spark plug.

 

 

• Loose blade or broken blade adapter.

 

 

• Control bar in released position.

 

 

Control bar defective.

 

 

• Fuel valve lever (if equipped) in OFF position.

 

 

 

 

Loss of Power

Rear of lawn mower housing or cutting blade

 

 

 

dragging in heavy grass.

 

 

• Cutting too much grass.

 

 

Dirty air filter.

 

 

• Buildup of grass, leaves and trash under mower.

 

 

• Too much oil in engine.

 

 

• Walking speed too fast.

 

 

 

 

Poor cut - uneven

Worn, bent, or loose blade.

 

 

Wheel heights uneven.

 

 

• Buildup of grass, leaves and trash under mower.

 

 

 

 

Excessive vibration

Worn, bent or loose blade.

 

 

Bent engine crankshaft.

 

 

 

 

Starter rope hard to pull

Engine flywheel brake is on when control bar is

 

 

 

released.

 

 

Bent engine crankshaft

 

 

Blade adapter broken.

 

 

• Blade dragging in grass.

 

 

 

 

 

English-44

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Contents Operators Manual Safety Instructions OPERATOR’S Manual Push MowerIntroduction Introduction Introduction Good Service Manufacturing NumberSymbols and Decals Symbols and DecalsXxxxxxx xxxx xxxxxxxx xxx Xxxx xxxxxx Distance from Safety Instructions Safety InstructionsGeneral Use Keep children away from the work area Operating on Slopes Do as followsDo not Maintenance ChildrenNever fill the fuel tank indoors Transport Customer responsibilities Controls ControlsEngine Speed Fuel Shut Off ValveOperator Presence Control OPC USE Full Throttle When MOWING, for best mower performance Choke Control All ModelsThrottle Control All Models Blade Brake Control BBC Cutting height Ground Drive BailShut Off Engine To Convert Mower To Empty Grass CatcherEnglish-20 Operation Before Starting EngineTo Start Engine Transmission Selector MowingBlade 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 General Recommendations Before Each UseIgnition System Checking the Engines Cooling Air Intake Checking and Adjusting the Throttle Cable and Choke Cable Replacing Air Filter InspectionReplacing the Fuel Filter Checking TiresDrive Wheels Always use protective gloves when handling the blade Checking the V-beltsChecking the Blade Blade replacement Gear CaseCleaning Clean Under Drive CoverGrass Catcher MufflerAdjusting the Lawn Mower To Adjust HandleRear Deflector To Remove Drive BeltEngine Adjustment Cleaning and WashingHardware English-41 Mower Lubrication Chart LubricationLubrication Engine LubricationTo Change Engine Oil Changing the Oil Filter Trouble Shooting Guide Trouble Shooting GuideProblem Cause English-45 112280 R2 03/06/07