Troy-Bilt 644H manual Wheel Drive Pins, Forward Reverse Clutch ClutchBailControl Ulator, Freewheel

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FeaturesandControls

WARNING

Before operating your machine, carefully read and understand all safety, controls and operating instructions in this Manual, the separate Engine Owner'sManual, and on the decals on the machine.

Failure to follow these instructions can result in serious personal injury.

Figure3-1: Featuresandcontrols.

Forward Reverse Clutch

ClutchBailControl

ulator

ight

Adjustment

Anti-ReverseStake

Drive Pin (on each wheel)

Introduction

This section describes the locations and functions of the controls on your tiller. Referto the nextsection ("Operation") for detailed operating instructions.

Practice using these controls, with the engineshut off, until you understandthe operation of the controls and feel confident with each of them.

IMPORTANT:Referto the separate engine manufacturer'sEngineOwner's Manual for information about the controls on the engine.

Wheel Drive Pins

WARNING

Never allow either of the

wheels to be in the FREEWHEEL position when the engine is running. Always put both wheels in the WHEEL DRIVE position before starting the engine.

Failure to comply could cause loss of tiller control, property damage, or personal injury.

through the holes in the wheel shaft (not the wheel hubs), thus allowing the wheels to turn freely when the tiller is pushed or pulled by hand.

To Place the Wheels in WHEELDRIVEor

FREEWHEEL:

1.Stop the engine, disconnect the spark plug wire from the spark plug and allow the engineto cool.

2.Raiseonewheel off the ground and place a sturdy support under the transmission.

3.Removethe wheel drive pin (A,

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Eachwheel is equippedwith a Wheel Drive Pin (A, Figures 3-2 and 3-3) that secures the wheel to the wheel shaft (B).

The wheels can be positioned in either a WHEELDRIVEor a FREEWHEELmode.

Before starting the engine, put both

wheels in the WHEELDRIVEposition by

inserting the Wheel Drive Pins through the wheel hubs and the wheel shaft. This

"locks" the wheels to the wheel shaft,

causing the wheelsto turn when either the ForwardClutch Bailor the Reverse

Clutch Control is engaged.

Usethe FREEWHEELmode only when the engine is not running. In FREEWHEEL, the Wheel Drive Pins are placed only

WARNING

Do not place the tiller on its side when changing the wheel drive positions as doing so could result in gasoline leaking from the fuel tank. Failure to follow this instruc- tion could result in personal injury or property damage.

Figures3-2 and 3-3) by removing the hairpin cotter (C).

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Contents TRtlI Bilt Findingmodelnumber Table of ContentsEngineinformation CLEVELAND,OH44136Safety Safety Various symbols shown here, with word OperatingSymbolsStartingStabilization Messageonengine HotSurfaces LooseParts List Qty. Description UnpackingInstructionsMoveTiller OffShipping Platform Attach HandlebarAssembly Install ReverseClutch CableFlatSide CheckLevelof TransmissionGearOilCheckAir Pressurein Tires Tiller is shipped withoutoil in the engineForward Reverse Clutch ClutchBailControl Ulator Wheel Drive PinsAdjustment Anti-ReverseStake Drive Pin on each wheel To Place the Wheels in WHEELDRIVEorTo Operate the ForwardClutchBail ReverseClutchControlForward Clutch Bail To Operate the Reverse ClutchControlDepthRegulatorLever HandlebarHeightAdjustmentTo Adjustthe Handlebars Anti-ReverseStakeInitial Operation Pre-Start ChecklistIntroduction Startingand Stoppingthe EngineOperatingthetiller Starting the EngineTurningthe Tiller Around Stoppingthe Tiller and EngineAvoidmakingfootprints Let the tiller dothe workAvoidtilling soggy,wet soil Tilling depthsTilling on slopes Tilling acrossslopeswithout using terracesClearingthe tines Tilling up and downslopesLoadingand Unloadingthe Tiller Required Maintenance Schedule Procedure Before Eve Each Use Hours Check engineoil level EveryTillerlubrication Transmissiongearoil ServiceCheckhardware Checkforoil LeaksTines Removingand Installing Tine AssembliesRemovingand Installing Individual Tines Tine InspectionPosition Checkingand Adjusting Forwarddrive BelttensionTo CheckForwardBelt Tension ForwardBelt Replacement Information Forwardclutch Bail AdjustmentCheckingand Adjusting Reversedrive Belttension Reverse Belt Replacement InformationEngineoilservice SparkplugserviceTroubleshooting Problem Possiblecause CorrectionList MODELS644H & 645A Partno DescriptionMODELS644H & 645A GW-55042 GW-1224-3 FRONT11 Description Partno RIGHT-HANDTINE LEFT-HANDTINE Engine Wheelshaft Tine ShaftUtchcable Forward Clutchcable MODELS644H & 645A TROY-BILT Tiller Lifetime Limited Warranty