Husqvarna Complete Troubleshooting Guide for Lawn Mowers

Page 26

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 seat

 

 

 

corrected, contact an authorized service center/

with attachment clutch

 

 

 

department.

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.

 

 

 

 

 

26

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Contents 2042 LS General Operation Safety RulesSafe Operation Practices for Ride-On Mowers II. Slope OperationIV. Towing ServiceIII. Children Table of Contents To Remove Tractor from Carton AssemblyUnassembled Parts Unpack CartonCheck for Proper Position of ALL Belts Check Tire PressureCheck Deck Levelness Check Brake SystemOperation Know Your Tractor Stopping See Fig HOW to USE Your TractorTo SET Parking BRAKESee Fig To USE Throttle Control D See FigSystem Characteristics To Adjust Mower Cutting Height See FigTo Adjust Gauge Wheels See Fig To Move Forward and Backward See FigReverse Operation System ROS Using the Reverse Operation SystemTo Operate Mower See Fig To Operate on HillsCheck Engine OIL Level Service REMINDER/HOUR MeterBefore Starting the Engine ADD GasolineMowing Tips Purge TransmissionMaintenance Lubrication ChartTires TractorBrake Operation Blade CareEngine Cleaning To Remove Mower See Fig Service and AdjustmentsTo Install Mower See Fig Service and Adjustments To Level Mower To Replace Mower Drive Belt See Fig To Replace Motion Drive Belt See FigFront Wheel TOE-IN/CAMBER To Start Engine with a Weak Battery See FigTo Check Brake To Remove Wheel for Repairs See FigTo Adjust Carburetor To Adjust Throttle Control CableTo Adjust Choke Control To Replace Headlight BulbFuel System StorageOther Engine OILTroubleshooting Points Engine dies when Schematic SCH12Electrical KEY Part Description Chassis Tractor - Model Number 2042LS 96043004200, Product no 43 Drive 532 40 53-84 Transaxle, Tufftorq K46BT 171 872 11 Spark Arrester KIT EngineEngine Power Rating Information Steering Assembly 532 41 Wheel, Steering 532 18 Seat Assembly Decals Wheels and Tires116 Mower Deck116 117 119 118 188 189 145 Tractor - Model Number 2042LS 96043004200, Product no 43 Mower Lift 100Warranty Statement Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Degrees MAX532 41 81-29 Rev 12.03.07 AP