Husqvarna LTH120 owner manual Off

Page 26

TROUBLESHOOTING POINTS

PROBLEM

CAUSE

CORRECTION

 

 

 

 

 

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/sharpen 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.

Switch is “OFF”.

1.

Turn switch “ON”.

(if so equipped)

2.

Bulb(s) burned out.

2.

Replace bulb(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”

1.

Engine throttle control not set at “SLOW”

1. Move throttle control to “SLOW” position and allow

when turning engine

 

position for 30 seconds before stopping engine.

 

to idle for 30 seconds before stopping engine.

“OFF”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

Image 26
Contents LTH120 Safe Operation Practices for Ride-On Mowers Safety Rules Table of Contents Keys Unassembled PartsSteering Wheel Slope Sheet SeatAssembly Install Seat See Fig Check Deck Levelness To Convert to Bagging or DischargingCheck Tire Pressure Check for Proper Position of ALL BeltsOperation Know Your Tractor HOW to USE Your Tractor Towing Carts and Other ATTACH- Ments Before Starting the EngineTo Operate on Hills Purge Transmission ADD GasolineTo Start Engine See Fig Automatic Transmission Warm UPMowing Tips Mulching Mowing TipsGeneral Recommendations Lubrication ChartCustomer Responsibilities Before Each USEBrake Operation BatteryTractor TiresEngine Muffler CleaningAIR Filter See Fig Spark PlugsTo Install Mower Service and AdjustmentsTo Level Mower Housing To Remove Mower See FigTo Replace Mower Blade Drive Belt See Fig To Adjust Brake See FigBelt Installation Belt RemovalTo Adjust Steering Wheel Alignment Transaxle Motion Control Lever Neutral Adjustment See FigTransmission REMOVAL/REPLACEMENT To Replace Motion Drive Belt See FigTo Remove Wheel for Repairs See Fig To Start Engine with a Weak Battery See FigReplacing Battery See To Attach Jumper CablesInterlocks and Relays To Adjust CarburetorTo Replace Headlight Bulb To Replace FuseStorage TractorTroubleshooting Points Problem Cause CorrectionOFF Schematic Tractor Model NO. LTH120 954140106A, Product no 14Electrical KEY Part NO. NO. Description Chassis and Enclosures KEY Part Description 532169630 Chassis StampingDrive CRD Steering Assembly Repair Parts Seat Assembly KEY Part NO. no DescriptionDecals Wheels & TiresEngine KEY Part NO. NO. Description Mower Deck 148 Mower Lift KEY Part Description Service Notes Service Notes Suggested Guide for Sighting Slopes for Safe Operation Sighting GuideWarranty Statement Limited Warranty532171589 10.26.99 RD