Troy-Bilt 644H-Bronco, 645A-Bronco manual Troubleshooting

Page 25

Section 5: 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

 

 

 

 

 

 

Engine does

1. Spark plug wire disconnected.

1.

Reconnect wire.

not start.

2. Engine Throttle Control Lever incorrectly set.

2.

Put lever in START position.

 

3.

Fuel tank empty.

3.

Add fuel.

 

4.

Choke control (if so equipped) in incorrect position.

4.

See Engine Owner’s Manual.

 

5.

Stale gasoline.

5.

Drain fuel and add fresh fuel.

 

6.

Dirty air filter(s).

6.

Clean or replace filter(s).

 

7.

Defective or incorrectly gapped spark plug.

7.

Inspect spark plug.

 

8.

Carburetor out of adjustment.

8.

See Engine Service Dealer.

 

9.

Misadjusted throttle control cable.

9.

See Engine Service Dealer

 

10.Dirt or water in fuel tank.

10. See Engine Service Dealer.

 

 

 

 

Engine runs poorly.

1. Defective or incorrectly gapped spark plug.

1.

Inspect spark plug (see Engine Owner’s Manual).

 

2.

Dirty air filter(s).

2.

Clean or replace (see Engine Owner’s Manual).

 

3.

Carburetor out of adjustment.

3.

See Engine Service Dealer.

 

4.

Stale gasoline.

4.

Replace with fresh gasoline.

 

5.

Dirt or water in fuel tank.

5.

See Engine Service Dealer.

 

6.

Engine cooling system clogged.

6.

Clean air cooling system (see Engine Owner’s Manual).

 

 

 

 

Engine overheats.

1. Engine cooling system clogged.

1.

Clean air cooling area (see Engine Owner’s Manual).

 

2.

Carburetor out of adjustment.

2.

See Engine Service Dealer.

 

3.

Oil level is low.

3.

Check oil level (see Engine Owner’s Manual).

 

 

 

 

 

Engine does not

 

 

 

 

shut off.

1. Misadjusted throttle control or ignition switch.

1.

See Engine Owner’s Manual or Engine Service Dealer.

 

 

 

 

Wheels and Tines

1. Improper use of controls.

1.

Review Sections 3 and 4.

will not turn.

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

2.

See “Checking Drive Belt Tension,” Section 5.

 

3.

Internal transmission wear or damage.

3

Contact local dealer or the factory.

 

4.

Bolt loose in transmission pulley.

4.

Tighten bolt.

 

 

 

 

Tines turn, but

1. Wheel Drive Pins not in WHEEL DRIVE.

1.

See “Wheel Drive Pins” in Section 3.

wheels don’t.

2. Internal transmission wear or damage.

2.

Contact local Dealer or the Factory.

 

 

 

 

Wheels Turn, but

1. Tine holder mounting hardware missing.

1.

Replace hardware.

Tines Don’t.

2. Internal transmission wear or damage.

2.

Contact local Dealer or the Factory.

 

 

 

 

Poor tilling

1. Worn tines.

1.

See “Tines” (Section 5).

performance.

2. Improper Depth Regulator setting.

2.

See “Tilling Tips & Techniques,” Section 4.

 

3.

Incorrect throttle setting.

3.

See Section 4.

 

4.

Forward Drive Belt slipping.

4.

See “Checking Forward Drive Belt Tension,” Section 5.

 

 

 

 

 

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Contents Operator’s Manual Table of Contents Ments or inspections SafetyUse a deep depth regulator setting Use slower engine speeds SafetyKeep children and pets away Never operate the tiller underDecals Operating SymbolsTools/Materials Needed for Assembly AssemblyLoose Parts List Qty. Description IntroductionAttach Handlebar AssemblyMove Tiller Off Shipping Platform Install Forward Clutch Cable Install Reverse Clutch CableCheck Hardware for Tightness Check Level Transmission Gear OilCheck Air Pressure in Tires Tiller is shipped without oil in the engineWheel Drive Pins Features and ControlsForward Clutch Bail Depth Regulator Reverse Clutch Control Anti-Reverse StakeReverse Clutch Control Forward Clutch BailTo Operate the Forward Clutch Bail To Operate the Reverse Clutch ControlHandlebar Height Adjustment Features and ControlsDepth Regulator Lever Anti-Reverse StakeIntroduction OperationInitial Operation Starting and Stopping the EngineOperation Use the Fast throttle speed setting when tillingOperating the Tiller Starting the EngineFor reverse motion of the wheels and tines Turning the Tiller AroundStopping the Tiller and Engine Tilling depths Let the tiller do the workAvoid tilling soggy, wet soil Avoid making footprintsClearing the tines Tilling across slopes without using terracesTilling on slopes Tilling up and down slopesLoading and Unloading the Tiller Required Maintenance Schedule MaintenanceEvery HoursTransmission Gear OIL Service MaintenanceTiller Lubrication Check for OIL LeaksRemoving and Installing Individual Tines Removing and Installing Tine AssembliesTines Tine InspectionTo Check Forward Belt Tension PositionReverse Belt Replacement Information Forward Clutch Bail AdjustmentTo Check Reverse Belt Tension AIR Cleaner Service Engine OIL ServiceSpark Plug Service Engine CleaningTroubleshooting TROY-BILT LLC, P.O. Box 361131, Cleveland, Ohio 44136-0019 TROY-BILT Tiller Lifetime Limited Warranty