Husqvarna 96045000408, 532 42 20-50_R1 owner manual Troubleshooting Points, Engine dies when

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Engine dies when

TROUBLESHOOTING POINTS

PROBLEM

CAUSE

CORRECTION

 

 

 

 

 

Engine dies when

1.

Reverse operation system

1.

Turn ignition key to

tractor is shifted

 

(ROS) is not "ON" while

 

ROS "ON" position.

into reverse

 

mower or other attachment

 

See Operation section.

 

 

is engaged.

 

 

 

 

 

 

 

Engine continues to run

1.

Faulty operator-safety presence control system.

1.

Check wiring, switches and connections. If not

when operator leaves

 

 

 

corrected, contact an authorized service center/

seat with attachment

 

 

 

department.

clutch engaged

 

 

 

 

 

 

 

 

 

Poor cut - uneven

1.

Worn, bent or loose blade.

1.

Replace blade. Tighten blade bolt.

 

2.

Mower deck not level.

2.

Level mower deck.

 

3.

Buildup of grass, leaves, and trash under mower.

3.

Clean underside of mower housing.

 

4.

Bent blade mandrel.

4.

Replace blade mandrel.

 

5.

Clogged mower deck vent holes from buildup of

5.

Clean around mandrels to open vent holes.

 

 

grass, leaves, and trash around mandrels.

 

 

 

 

 

 

 

Mower blades will not

1.

Obstruction in clutch mechanism.

1.

Remove obstruction.

rotate

2.

Worn/damaged mower drive belt.

2.

Replace mower drive belt.

 

3.

Frozen idler pulley.

3.

Replace idler pulley.

 

4.

Frozen blade mandrel.

4.

Replace blade mandrel.

 

 

 

 

 

Poor grass discharge

1.

Engine speed too slow.

1.

Place throttle control in “FAST” position.

 

2.

Travel speed too fast.

2.

Shift to slower speed.

 

3.

Wet grass.

3.

Allow grass to dry before mowing.

 

4.

Mower deck not level.

4.

Level mower deck.

 

5.

Low/uneven tire air pressure.

5.

Check tires for proper air pressure.

 

6.

Worn, bent or loose blade.

6.

Replace blade. Tighten blade bolt.

 

7.

Buildup of grass, leaves and trash under mower.

7.

Clean underside of mower housing.

 

8.

Mower drive belt worn.

8.

Replace mower drive belt.

 

9.

Blades improperly installed.

9.

Reinstall blades sharp edge down.

 

10.

Improper blades used.

10.

Replace with blades listed in this manual.

 

11.

Clogged mower deck vent holes from buildup of

11.

Clean around mandrels to open vent holes.

 

 

grass, leaves, and trash around mandrels.

 

 

 

 

 

 

 

Headlight(s) not working

1.

Light switch is “OFF”.

1.

Turn light switch “ON”.

(if so equipped)

2.

Bulb(s) or lamp(s) burned out.

2.

Replace bulb(s) or lamp(s).

 

3.

Faulty light switch.

3.

Check/replace light switch.

 

4.

Loose or damaged wiring.

4.

Check wiring and connections.

 

5.

Blown fuse.

5.

Replace fuse.

 

 

 

 

 

Battery will not charge

1.

Bad battery cell(s).

1.

Replace battery.

 

2.

Poor cable connections.

2.

Check/clean all connections.

 

3.

Faulty regulator (if so equipped).

3.

Replace regulator.

 

4.

Faulty alternator.

4.

Replace alternator.

 

 

 

 

 

Loss of drive

1.

Freewheel control in “disengaged” position.

1.

Place freewheel control in “engaged” position.

 

2.

Motion drive belt worn, damaged, or broken.

2.

Replace motion drive belt.

 

3.

Air trapped in transmission during shipment

3.

Purge transmission.

 

 

or servicing.

 

 

 

 

 

 

 

Engine “backfires” when

1.

Engine throttle control not set between half and

1.

Move throttle control between half and full speed

turning engine “OFF”

 

full speed (fast) position before stopping engine.

 

(fast) position before stopping engine.

 

 

 

 

 

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Contents YTH20K46 Owners Manual / 96045000408I. GENERAL OPERATION SAFETY RULESSafe Operation Practices for Ride-On Mowers II. SLOPE OPERATIONIV. TOWING V. SERVICEIII. CHILDREN CUSTOMER RESPONSIBILITIES TABLE OF CONTENTSPRODUCT SPECIFICATIONS ADJUST SEAT See Fig ASSEMBLYTO CHECK BATTERY See Fig UNASSEMBLED PARTSCHECK FOR PROPER POSITION OF ALL BELTS CHECK TIRE PRESSURECHECK DECK LEVELNESS CHECK BRAKE SYSTEMOPERATION KNOW YOUR TRACTOR PH DG ESTOPPING See Fig. 5A HOW TO USE YOUR TRACTORTO SET PARKING BRAKE See Fig TO USE THROTTLE CONTROL D See Fig. BTO MOVE FORWARD AND BACKWARD See Fig TO ADJUST MOWER CUTTING HEIGHT See FigTO ADJUST GAUGE WHEELS See Fig TO USE CRUISE CONTROL J See FigTO OPERATE ON HILLS TO OPERATE MOWER See FigREVERSE OPERATION SYSTEM ROS See Fig TO TRANSPORT See Figs. 3 andCHECK ENGINE OIL LEVEL SERVICE REMINDER/HOUR METERBEFORE STARTING THE ENGINE ADD GASOLINEMOWING TIPS PURGE TRANSMISSIONMAINTENANCE LUBRICATION CHARTBLADE CARE BATTERYTRACTOR BLADE REMOVAL See FigTRANSAXLE COOLING ENGINEV-BELTS TRANSAXLE PUMP FLUIDCLEAN AIR SCREEN CLEANINGCLEAN AIR INTAKE/COOLING AREAS AIR FILTERTO REMOVE MOWER See Fig SERVICE AND ADJUSTMENTSTO INSTALL MOWER See Figs Q R AEE FJ H TO LEVEL MOWER TO REPLACE MOTION DRIVE BELT See Fig TO REPLACE MOWER BLADE DRIVE BELT See FigTO CHECK BRAKE FRONT WHEEL TOE-IN/CAMBER TO ADJUST STEERING WHEEL ALIGNMENTTO START ENGINE WITH A WEAK BATTERY See Fig TO REMOVE WHEEL FOR REPAIRS See FigTO ADJUST THROTTLE CONTROL CABLE REPLACING BATTERY See FigTO REMOVE HOOD AND GRILL ASSEMBLY See Fig TO ADJUST CARBURETORFUEL SYSTEM STORAGEOTHER ENGINE OILCAUSE TROUBLESHOOTING POINTSPROBLEM CORRECTIONEngine dies when IGNITION SWITCH SCHEMATICTRACTOR - - MODEL NUMBER YTH20K46 96045000408, PRODUCT NO. 960 45 SCH10TRACTOR - - MODEL NUMBER YTH20K46 96045000408, PRODUCT NO. 960 45 ELECTRICALWith Service Minder Option T04STRACTOR - - MODEL NUMBER YTH20K46 96045000408, PRODUCT NO. 960 45 CHASSIS TRACTOR - - MODEL NUMBER YTH20K46 96045000408, PRODUCT NO. 960 45 DRIVE drive-texT2pedal10DRIVE engine-texKohl7 ENGINESPARK ARRESTER KIT TRACTOR - - MODEL NUMBER YTH20K46 96045000408, PRODUCT NO. 960 45 STEERING ASSEMBLY steering-texLEGND216STEERING ASSEMBLY wheelart1-tex DECALSWHEELS AND TIRES SEAT ASSEMBLY seat-tex6.5SL3MOWER DECK 46texltpred3r6TRACTOR - - MODEL NUMBER YTH20K46 96045000408, PRODUCT NO. 960 45 MOWER LIFT lift-tex6HUSQVARNA PRODUCT REGISTRATION INFORMATION & WARRANTY STATEMENT SECTION 6 PROCEDURE TO OBTAIN WARRANTY CONSIDERATION SECTION 2 HUSQVARNAS OBLIGATIONS UNDER THE WARRANTYSECTION 3 ITEMS NOT COVERED BY THIS WARRANTY SECTION 4 EXCEPTIONS AND LIMITATIONS532 42 20-50R1 07.30.08 AP Printed in the U.S.A