Troy-Bilt 644H-Bronco, 645A-Bronco manual Operator’s Manual

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Operator’s Manual

Rear-tine Tiller Models

644H—BroncoTM645A—BroncoTM

Model 644H Shown (bumper syles vary)

IMPORTANT:READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brush- covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available by contacting the service department at Troy-Bilt LLC, P.O. Box 361131 Cleveland, Ohio 44136-0019.

TROY-BILT LLC, P.O. BOX 361131, CLEVELAND, OH 44136-0019

PRINTED IN USA	FROM NO. 769-00585B
	(11/2003)

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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