Troy-Bilt 644A, 640C manual Problem, Correction

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moving partsto come to a complete stop, disconnectspark plug wire and move wire awayfrom WARNING: Beforeinspecting, cleaning or servicing the machine,shut off engine, wait for all

spark plug. Failureto follow these instructions can result in serious personal injury or property damage.

TROUBLESHOOTING

PROBLEM

 

POSSIBLECAUSE

Enginedoes not start

1.

Spark plug wire disconnected

 

2.

Engine Throttle Control Lever incorrectly set.

 

3.

Fueltank empty.

 

4.

Choke control (if so equipped) in incorrect position.

 

5.

Stale gasoline.

 

6.

Dirty air filter.

 

7.

Defective or incorrectly gapped spark plug.

 

8.

Carburetor out of adjustment.

 

9.

Misadjusted throttle control.

 

10.

Dirt or water in fuel tank.

Enginerunspoorly.

1.

Defective or incorrectly gapped spark plug.

 

2.

Dirty air filter(s).

 

3.

Carburetor out of adjustment.

 

4.

Stale gasoline.

 

5.

Dirt or water in fuel tank.

 

6.

Engine cooling system clogged.

Engineoverheats.

1.

Engine cooling system clogged.

 

2.

Carburetor out of adjustment.

 

3.

Oil level is low.

CORRECTION

Reconnectwire.

2.Put lever in STARTposition.

3.Add fuel.

4.See Engine Owner'sManual.

5.Drain fuel and add fresh fuel.

6.Clean or replace filter.

7.Inspect spark plug.

8.See Engine Service Dealer.

9.See Engine Service Dealer

10.See Engine Service Dealer.

Inspect spark plug (see Engine Owner'sManual).

2.Clean or replace (see Engine Owner'sManual).

3.See Engine Service Dealer.

4.Replacewith fresh gasoline.

5.See Engine Service Dealer.

6.Cleanair cooling system (see Engine Owner'sManual). Cleanair cooling area (see Engine Owner'sManual).

2.See Engine Service Dealer.

3.Check oil level (see Engine Owner'sManual).

Enginedoesnotshotoff WheelsandTineswill notturn

Tinesturn,butwheelsdon't,

WheelsTurn,butTinesDon't,

Poortillingperformance.

1.Misadjusted throttle control or ignition switch.

1.Improper useof controls.

2.Worn, broken, or misadjusted drive belt(s).

3.Internal transmission wear or damage.

4.Bolt loose in transmission pulley.

1.Wheel Drive Pins not in WHEEL DRIVE.

2.Bolt loose in transmission pulley.

3.Internal transmission wear or damage.

1.Tine holder mounting hardware missing.

2.Bolt loose in transmission pulley.

3.Internal transmission wear or damage.

1.Worn tines.

2.Improper Depth Regulator setting.

3.Incorrectthrottle setting.

4.Forward Drive Belt slipping.

1.See Engine Owner'sManual or Engine Service Dealer.

1.Review Sections 3 and 4.

2.See "Checking Drive Belt Tension," Section 5.

3.Contact local dealer or the factory.

4.Tighten bolt.

1.See "Wheel Drive Pins" in Section 3.

2.Tighten bolt.

3.Contact local Dealer or the Factory.

1.Replacehardware.

2.Tighten bolt.

3.Contact local Dealer or the Factory.

1.See "Bolo Tines" (Section 5).

2.See "Tilling Tips & Techniques," Section 4.

3.See Section 4.

4.See "Checking Forward Drive Belt Tension," Section 5.

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Contents Formno -00585C Troy-Bilt LLC, P.O. BOX361131CLEVELAND,OHIO44136-001915/04 Findingmodelnumber ForwardClutchBailReverseClutchControl SafetySafetyAlert Symbol Models644APowerif thewheels are in the Freewheel Tiller, usingone handon the handleAvoidusing downwardpressureon TillerMayheusedontedllerandengine OperatingSymbolsHotSurfacesWarning Bail Engaged DisengagedInspectunit AssemblyAssemblysteps TOOLS/ MaterialsneededInstall Forward Clutch CableInstall Reverse Clutch Cable Model 644A only While preventingthe cable adjuster from turningAdjuster SpringandEl-/ AUU IVlUI UH UIL OIL LevelTires unitswithpneumatictires Thetiller is shipped withoutoil in the en- gineIntroduction FeaturesandcontrolsWheel Drive Pins Engine ControlsReverseclutchcontrol Handlebar Height AdjustmentForwardclutchbail BailE. OnlyMode1644Ahavea ReverseBREAK-INOPERATION OperationStarting and Stopping Dlebarssidewaysto turntiller Operatingthe TillerStoppingthe Tillerand Engine AvoidTilling Soggy,Wet Soil Tilling DepthsLet the Tiller Dothe Work AvoidMaking Footprints Thoroughlypulverizethe soilRead the followingrecommendationsbeforetilling on slopes Clearingthe TinesLoading and UnloadingtheTiller Tilling Up and DownSlopesVertical Tilling Wahning Do notTerraceGardening Loading and Unloading TillerUnloading the tiller into a Maintenance Drain the oil from the engine BolotinesTo Drain theTransmissionGear Oil Removethe left-side wheelSqueezetheForwardClutch Bailagainst Checkingand AdjustingForwarddrive Belt Tension Handlebarsee -4 and reForwardclutch Bail Adjustment EnginecleaningAircleanerservice Engine OIL ServiceStore unit in aclean, dry area SparkplugserviceThrottleleveradjustment OFF-SEASONSTORAGEProblem CorrectionM13 AForModel640C BForModel644A Description1418 Partno 749-04193 Bumper B 710-0395Partno Description Front I11 AForModel640C BForModel644A DescriptionTine Shaft Hold TinesWith Blunt EndTowardYouPage TROY-BILT Tiller Lifetime Limited Warranty TROY-BILT LLC, P.O. Box 361131, Cleveland, Ohio 44136-0019