Troy-Bilt 645AMBRONCO, 644HMBRONCO manual Troubleshooting, Problem Possible Cause Correction

Page 25

Section5: Maintenance

TROUBLESHOOTING

Before performing any corrections, refer to the appropriate information in this Manual, or in the Engine Owner's Manual, for the correct safety precautions and operating or maintenance procedures. Contact your local authorized Engine Service Dealer for engine service. Contact your local authorized equipment dealer or the factory for all other service problems.

PROBLEM

 

POSSIBLE CAUSE

 

CORRECTION

Enginedoes

1.

Sparkplug wire disconnected.

1.

Reconnectwire.

notstart.

2.

EngineThrottle ControlLever incorrectlyset.

2.

Put leverin STARTposition.

 

3.

Fueltank empty.

3.

Addfuel.

 

4.

Chokecontrol (if so equipped)in incorrect position.

4.

SeeEngineOwner'sManual.

 

5.

Stalegasoline.

5.

Drainfuel and addfresh fuel.

 

6.

Dirty air filter(s).

6.

Cleanor replacefilter(s).

 

7.

Defectiveor incorrectlygappedspark plug.

7.

Inspect sparkplug.

 

8.

Carburetorout of adjustment.

8.

SeeEngineServiceDealer.

 

9.

Misadjustedthrottle control cable.

9.

SeeEngineServiceDealer

 

10.Dirt or water in fuel tank.

10. SeeEngineServiceDealer.

Enginerunspoorly.

1.

Defectiveor incorrectlygappedspark plug.

1.

Inspect sparkplug (seeEngineOwner'sManual).

 

2.

Dirty air filter(s).

2.

Cleanor replace(seeEngineOwner'sManual).

 

3.

Carburetorout of adjustment.

3.

SeeEngineServiceDealer.

 

4.

Stalegasoline.

4.

Replacewith fresh gasoline.

 

5.

Dirt or water in fuel tank.

5,

SeeEngineServiceDealer.

 

6.

Enginecooling systemclogged.

6.

Cleanair coolingsystem (seeEngineOwner'sManual).

Engineoverheats.

1.

Enginecooling systemclogged.

1.

Cleanair coolingarea (seeEngineOwner'sManual).

 

2.

Carburetorout of adjustment.

2.

SeeEngineServiceDealer.

 

3.

Oil levelis low.

3.

Checkoil level(seeEngineOwner'sManual).

Enginedoesnot

 

 

 

 

shut off.

1.

Misadjustedthrottle control or ignition switch.

1.

SeeEngineOwner'sManualor EngineServiceDealer.

Wheels andTines

1.

Improper use of controls.

1.

ReviewSections3 and 4.

will notturn.

2.

Worn,broken, or misadjusteddrivebelt(s).

2.

See"CheckingDriveBeltTension," Section5.

 

3.

Internaltransmission wearor damage.

3

Contactlocaldealerorthe factory.

 

4.

Bolt loosein transmission pulley.

4.

Tightenbolt.

Tinesturn, but

1.

WheelDrive Pinsnot in WHEELDRIVE.

1.

See"Wheel DrivePins" in Section3.

wheels don't.

2.

Internaltransmission wearor damage.

2.

ContactlocalDealerorthe Factory.

WheelsTurn, but

1. Tine holdermounting hardwaremissing.

1.

Replacehardware.

Tines Don't.

2.

Internaltransmission wearor damage.

2.

ContactlocalDealerorthe Factory.

Poortilling

1.

Worntines.

1.

See"Tines"(Section5).

performance.

2.

Improper DepthRegulatorsetting.

2.

See"Tilling Tips & Techniques,"Section4.

 

3.

Incorrectthrottle setting.

3.

SeeSection4.

 

4.

ForwardDrive Belt slipping.

4.

See"CheckingForwardDriveBelt Tension,"Section5.

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Contents TRtllcBILT Tableofcontents Safety Safety ÷i I÷1 R LooseParts List Qty. Description Tools/MaterialsNeededfor AssemblyIntroduction InspectunitMove Tiller Off Shipping Platform Attach HandlebarInstall Forward Clutch Cable Install ReverseClutch CableCheckAir Pressurein Tires CheckLevelof TransmissionGearOilAdd Motor Oil to Engine Check Hardware for TightnessTo Placethe Wheels in WHEELDRIVEor Wheel Drive PinsFreewheel To Operatethe Forward ClutchBail Forward Clutch BailTo Operatethe Reverse ClutchControl Travel Position Shallow Deep Settings To Adjustthe HandlebarsInitial Operation IntroductionStartingand Stoppingthe Engine Gasoline is Highly Flammable and ITS Vaporsare ExplosiveStarting the Engine Operatingthe TillerStoppingthe Tiller and Engine Turning the Tiller AroundAvoidtilling soggy,wet soil Let the tiller dothe workAvoidmakingfootprints Tilling depthsTilling on slopes Tilling acrossslopeswithout usingterracesClearing the tines Tilling up and downslopesLoadingand Unloadingthe Tiller Procedure Required Maintenance ScheduleBefore Every Each Use HoursCheckhardware CHECKTIREPRESSUREonMachines equipped with pneumatic tires To Checkthe Transmission Gear Oil LevelRemovingand Installing IndividualTines Removingand Installing Tine AssembliesTines Tine InspectionPosition Checkingand Adjusting Forwarddrive BelttensionTo CheckForwardBelt Tension Checkingand Adjusting Reversedrive Belttension Forwardclutch BailadjustmentForwardBelt Replacement Information Reverse Belt Replacement InformationAIR Cleanerservice Engineoil ServiceSparkplugservice EnginecleaningProblem Possible Cause Correction TroubleshootingPartsList Description PartnoMODELS644H & 645A 1918749 Bumper 710-0395 Partno Description Front Description Partno Wheelshaft MODELS644H & 645AMODELS644H & 645A Partno TROY-BILT LLC, P.O. Box 361131, Cleveland, Ohio 44136-0019 TROY-BILT Tiller Lifetime Limited Warranty