Toro LX420, LX460 manual Troubleshooting, Possible Causes, Corrective Action

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SECTION 13: TROUBLESHOOTING

SECTION 13: TROUBLESHOOTING

Trouble

Possible Cause(s)

Corrective Action

 

 

 

Engine fails to start

PTO (Blade Engage) lever engaged.

Place PTO (Blade Engage) lever in (OFF) position.

 

Parking brake not engaged.

Engage parking brake.

 

Spark plug wire disconnected.

Connect wire to spark plug.

 

Throttle/choke control not in correct

Move Throttle/Choke Control into CHOKE position.

 

starting position.

 

 

Choke not activated

Move Throttle/Choke Control into CHOKE position.

 

Fuel tank empty, or stale fuel.

Fill tank with clean, fresh (less than 30 days old) gas.

 

Blocked fuel line.

Clean fuel line or replace fuel filter.

 

Faulty spark plug.

Clean, adjust gap or replace plug.

 

Engine flooded.

Crank engine with throttle in FAST position.

Engine runs erratic

Unit running with CHOKE activated.

Move Throttle/Choke Control out of CHOKE position.

 

Spark plug wire(s) loose.

Connect and tighten spark plug wire(s).

 

Blocked fuel line or stale fuel.

Clean fuel line; fill tank with clean, fresh (less than 30

 

 

days old) gasoline. Replace fuel filter, if so equipped.

 

Vent in gas cap plugged.

Clear vent or replace cap if damaged.

 

Water or dirt in fuel system.

Drain fuel tank. Refill with clean, fresh (less than 30

 

 

days old) gasoline.

 

Dirty air cleaner.

Replace air cleaner paper element or clean foam

 

 

precleaner.

Engine overheats

Engine oil level low.

Fill crankcase with proper capacity and weight of oil.

 

Air flow restricted.

Clean grass clippings and debris from around the

 

 

engine’s cooling fins and blower housing.

Engine hesitates at high RPM

Spark plug gap too close.

Remove spark plug and reset the gap.

Idles poorly

Spark plug fouled, faulty or gap too

Replace spark plug. Set plug gap.

 

wide.

 

 

Dirty air cleaner.

Replace air cleaner element or clean pre-cleaner.

Excessive vibration

Cutting blade loose or unbalanced.

Tighten blade and spindle. Balance blade.

 

Damaged or bent cutting blade.

Replace blade.

Mower will not mulch grass

Engine speed too low.

Place throttle in FAST (rabbit) position.

 

Wet grass.

Do not mow when grass is wet; wait until later to cut.

 

Excessively high grass.

Mow once at a high cutting height, then mow again at

 

 

desired height or make a narrower cutting swath.

 

Dull blade.

Sharpen or replace blade.

Uneven cut

Deck not balanced properly.

Perform side-to-side deck adjustment.

 

Dull blade.

Sharpen or replace blade.

 

Uneven tire pressure.

Check tire pressure in all four tires.

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Contents ManualOperator’s Form NoLX420 & LX460 Lawn Tractors Model No. 13AX60RG744 Model No. 13AX60RH744TABLE OF CONTENTS ContentFINDING MODEL NUMBER CUSTOMER SUPPORTGENERAL OPERATION SECTION 1 IMPORTANT SAFE OPERATION PRACTICESCalifornia Proposition 65 Warning SLOPE OPERATION DO NOTSERVICE CHILDRENTOWING SAFE HANDLING OF GASOLINEGENERAL SERVICE DANGER SECTION 2 SAFETY LABELSASSEMBLE CHUTE DEFLECTOR TO THIS UNIT BEFORE OPERATING SECTION 3 INSTRUCTIONAL LABELS LX420 LX460SECTION 4 SLOPE GAUGE Attaching the Battery Cables SECTION 5 TRACTOR SET-UPGas and Oil Fill-up Attaching The Steering WheelShipping Brace Removal Tire PressureAttaching The Seat Setting the Gauge Wheels SECTION 6 KNOW YOUR LAWN TRACTOR A G B H C I J DK E FIgnition Switch Module Brake PedalShift Lever Deck Lift LeverSystems Indicator Monitor / Hour Meter BatteryPTO Blade Engage Lever Cruise Control LeverSafety Interlock System SECTION 7 OPERATING YOUR LAWN TRACTORReverse Caution Mode To use the REVERSE CAUTION MODEUsing the Deck Lift Lever Starting the EngineDriving The Tractor Stopping the EngineSetting The Cruise Control Engaging the Parking BrakeEngaging the Blades MowingSeat Adjustment Leveling the DeckFront To Rear SECTION 8 MAKING ADJUSTMENTSParking Brake Adjustment Side to SideSteering Adjustment SECTION 9 MAINTAINING YOUR LAWN TRACTOR EngineEngine Oil Checking the Oil LevelChanging the Engine Oil Draining the OilChanging the Oil Filter Re-filling the Crankcase with OilPrecleaner Service Paper ElementAir Filter Spark PlugCleaning the Engine LubricationFuel Filter EngineSECTION 10 SERVICE TiresFuse Cutting BladesBattery Cutting Deck RemovalJump Starting ChargingChanging the Lower Deck Belt Model LX460 only Changing the Deck BeltChanging The Transmission Drive Belt LX420 LX460Belt Cover Idler PulleysSECTION 11 OFF-SEASON STORAGE SECTION 12 MAINTENANCE CHART SECTION 13 TROUBLESHOOTING TroublePossible Causes Corrective ActionSECTION 14 SPECIFICATIONS DimensionsLX420 LX460Page CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONSMANUFACTURER’S WARRANTY COVERAGE OWNER’S WARRANTY RESPONSIBILITIESMANUFACTURER’S LIMITED WARRANTY FOR LAWN & GARDEN TRACTORSThe Toro Company In the U.S.A. or Canada
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