Troy-Bilt 644H manual CheckLevelof TransmissionGearOil, CheckAir Pressurein Tires, FlatSide

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4.Insert the cable up through the slot in the cable bracket and position the

threaded assembly as shown in Fig. 2-8. Makesure that the flat side of the

threaded assembly is aligned with the flat side of the mounting hole. Slidethe large hex nut (DD) up the cableand tighten it securely.

5.Usea cabletie (EE,Fig. 2-9) to fasten the reverseclutch cableto the left side

handlebar.

6.Test the function of the reverseclutch cable by pulling the knob out and releasing it. The knob should return to its neutral position (resting against bracket) when it is released. If it doesn't,contact

your local dealer or the factory for technical assistance.

AA_

I

STEP6: CheckLevelof

TransmissionGearOil

The transmission was filled with gear oil at the factory. However,you should check the gear oil level to make certain it is correct.

IMPORTANT:Do not operatethe tiller if the gear oil level is low. Doing so will result in severedamageto the transmis- sion components.

1.Put the tiller on level ground. Pull the Depth RegulatorLever (FF,Fig. 2-10) backand then adjust it up or down to the notch that makesthe tiller level.

2.Removethe oil fill plug (GG, Fig. 2-11) from the transmission housing and look into the oil fill hole. You will see the main drive shaft on one side of the hole.

8.The gearoil level is correct if the gear

oil is approximately halfway up the side of the drive shaft.

4.If the gear oil level is low, add gear oil by referring to "A. To Checkthe Transmis- sion GearOil Level" in Section 5.

Section2: Assembly

Fig, 2-10: Adjust DepthRegulator Lever.

Fig.2-11: Removegearoil fillplug.

DD

FlatSide

Fig.2-8: Installreversecablemounting bracketandthereverseclutchcable.

STEP 7: Add Motor Oil to Engine

The tiller is shipped withoutoil in the engine.

IMPORTANT: Do not start the engine without first adding motor oil. Severe engine damagewill result if the engine is run without oil.

1.Referto the EngineOwner'sManual

(supplied with tiller) for engine oil specifi- cations and capacities.

2.With the tiller on level ground, pull the Depth RegulatorLever (FF,Fig. 2-10) backand then slide it up or down as necessaryuntil the engine is level.

3.Add motor oil as described in the EngineOwner'sManual.

4.Move the Depth Regulator Leverall the way down until the highest notch is engaged. This placesthe tines in the "travel" position.

STEP9: CheckAir Pressurein

Tires)

Usea tire pressuregauge to check the air pressure in both tires. Deflateor inflate both tires equally to 15-to-20 PSi (pounds persquare inch). Be sure that both tires are inflated equally or the unit will pull to one side.

IMPORTANT: This completes the assembly steps. Before operating your tiller, make sure you readthe following Sections in this Manual, as well as the separateEngineOwner'sManual:

Section 1: "Safety"

Section 3: "Featuresand Controls"

Section 4: "Operation"

Fig. 2-9."Route reverseclutch cable (CC) as shown. Attachto handlebarwith cable tie

STEP 8: Check Hardware for

Tightness

Checkall nutsandscrewsfor tightness.

(EE).

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Contents TRtlI Bilt Engineinformation Table of ContentsFindingmodelnumber CLEVELAND,OH44136Safety Safety OperatingSymbols Various symbols shown here, with wordStartingStabilization Messageonengine HotSurfaces UnpackingInstructions LooseParts List Qty. DescriptionAttach Handlebar MoveTiller OffShipping PlatformInstall ReverseClutch Cable AssemblyCheckAir Pressurein Tires CheckLevelof TransmissionGearOilFlatSide Tiller is shipped withoutoil in the engineAdjustment Anti-ReverseStake Drive Pin on each wheel Wheel Drive PinsForward Reverse Clutch ClutchBailControl Ulator To Place the Wheels in WHEELDRIVEorForward Clutch Bail ReverseClutchControlTo Operate the ForwardClutchBail To Operate the Reverse ClutchControlTo Adjustthe Handlebars HandlebarHeightAdjustmentDepthRegulatorLever Anti-ReverseStakeIntroduction Pre-Start ChecklistInitial Operation Startingand Stoppingthe EngineStarting the Engine OperatingthetillerStoppingthe Tiller and Engine Turningthe Tiller AroundAvoidtilling soggy,wet soil Let the tiller dothe workAvoidmakingfootprints Tilling depthsClearingthe tines Tilling acrossslopeswithout using terracesTilling on slopes Tilling up and downslopesLoadingand Unloadingthe Tiller Before Eve Each Use Hours Check engineoil level Every Required Maintenance Schedule ProcedureCheckhardware Transmissiongearoil ServiceTillerlubrication Checkforoil LeaksRemovingand Installing Individual Tines Removingand Installing Tine AssembliesTines Tine InspectionCheckingand Adjusting Forwarddrive Belttension PositionTo CheckForwardBelt Tension Checkingand Adjusting Reversedrive Belttension Forwardclutch Bail AdjustmentForwardBelt Replacement Information Reverse Belt Replacement InformationSparkplugservice EngineoilserviceProblem Possiblecause Correction TroubleshootingList Partno Description MODELS644H & 645AMODELS644H & 645A GW-55042 GW-1224-3 FRONT11 Description Partno Wheelshaft Tine Shaft RIGHT-HANDTINE LEFT-HANDTINE EngineUtchcable Forward Clutchcable MODELS644H & 645A TROY-BILT Tiller Lifetime Limited Warranty