Husqvarna LTH1538 owner manual Engine dies when

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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/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.

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.

 

 

 

 

 

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.

 

 

 

 

 

27

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Contents LTH1538 II. Slope Operation Safety RulesSafe Operation Practices for Ride-On Mowers General OperationIV. Towing ServiceGeneral Service III. ChildrenTable of Contents Unpack Carton AssemblyTo Remove Tractor from Carton Before Removing Tractor from SkidInstall Seat See Figs Check Battery See FigAdjust Seat See Fig Steps 1, 2 Attach Hood Scoop See FigCheck Brake System Check Tire PressureCheck Deck Levelness Check for Proper Position of ALL BeltsOperation Know Your Tractor To USE Throttle Control D See Fig HOW to USE Your TractorTo SET Parking Brake See Fig Stopping See FigsTo Move Forward and Backward See Fig To Adjust Gauge Wheels See FigTo Adjust Mower Cutting Height See Fig Using the Reverse Operation SystemBefore Starting the Engine Mowing Tips To Start EngineAutomatic Transmission Warm UP Lubrication Chart MaintenanceBattery TractorBlade Removal See Fig Engine Cleaning Into the Cable Guide on Front Edge of Lower Dash Service and AdjustmentsTo Install Mower See Fig To Remove Mower See FigInstall belt on engine pulley M, in belt keepers G To Level Mower To Replace Mower Drive Belt See Fig To Replace Motion Drive Belt See FigTo Check Brake To Attach Jumper Cables To Start Engine with a Weak Battery See FigFront Wheel TOE-IN/CAMBER To Remove Wheel for Repairs See FigTo Replace Headlight Bulb To Adjust Throttle Control CableTo Adjust Choke Control To Adjust CarburetorEngine OIL StorageOther Fuel SystemProblem Cause Correction Troubleshooting PointsEngine dies when Tractor - Model Number LTH1538 96043003800, Product no 43 SchematicDecals Wheels and TiresKEY Part Description Electrical Socket Asm Bulb Twistlock Chassis 238 532 41 Trim 239 532 40 Clip Tinnerman Drive 167 532 40 52-57 Latch Brake Parking UNCEngine Engine Power Rating Information KEY Part Seat AssemblySteering Assembly Mower Deck 532 40 30-12 Handle Clutch Cable Mower Lift Suggested Guide for Sighting Slopes for Safe Operation 532 41 07-13 REV1 12.07.06 TB