Troy-Bilt 644A Operation, Break-Inoperation, Starting And Stopping, WARNING Donot attempt, Arning

SECTION4: OPERATION

ReverseClutchControl

1. Completethe Pre-Start Checkliston this

_	operating your machine,
	ARNING:	Before

carefully readand understand all safety (Section 1), controls (Section 3) and operating instructions (Section4) inthis Manual,the separateEngine

(Model644A)

page.

2.Putthe wheels inthe WHEELDRIVEpo- sition (see WheelDrive Pinsin Section3 of this manual).

Owner'sManual,and on the decalson the machine.

Failureto follow these instructions can result in serious personal injury.

INTRODUCTION

Readthis OperationSection andthe sepa- rate EngineOwner'sManual before you start the engine. Then,take the time to fa- miliarize yourself with the basic operation of the tiller before using it in the garden. Findan open, level areaand practice using the tiller controls without the tines engag- ing the soil (put tines in "travel" setting). Only after you'vebecomecompletely fa- miliar with the tiller should you beginusing it in the garden.

BREAK-INOPERATION

Perform the following maintenanceafter the first two (2) hours of new operation (see MaintenanceSection in this manual and in the Engine Owner'sManual).

1.Changeengine oil.

2.Checkfor loose or missing hardware on unit. Tighten or replaceas needed.

3.Checktension on forward drive belt.

4.Checktransmission gear oil level.

STARTING AND STOPPING

Pre-StartChecklist

With the spark plug wire disconnected

from the sparkplug, perform the following checksand services before each use:

1.Readthe Safetyand Controls Sections in this manual. Readthe separateEngine Owner'sManual provided with the unit.

2.Putthe wheels inthe WHEELDRIVEpo- sition (wheel pins must be through holes in wheel hubs and wheel shaft).

3.Checkunit for loose or missing hard- ware. Serviceas required.

4.Checkengineoil level. SeeEngineOwn- er'sManual.

Clutch Bail

,epthRegulator

/

DrivePin

Fig. 4-1

5.Checkthat all safety guards andcovers are in place.

6.Checkair cleanerand engine cooling system. SeeEngineOwner'sManual.

HIGHLYFLAMMABLEAND ITS

,_ WARNING: GASOLINEIS VAPORSAREEXPLOSIVE.

Followgasoline safety rules in this Manual (seeSection 1)and in the separateEngineOwner's Manual.

Failureto follow gasoline safety instructions can result in serious personal injury and property damage.

7.Fill the fuel tank with gasoline according to the directions inthe separate Engine Owner'sManual. Follow all instructions and safety rules carefully.

8.Attach spark plug wire to spark plug.

Startingthe Engine

The following steps describe how to start and stop the engine.

,_	to engagethe tines or wheels
	WARNING: Donot attempt
	until you have readall of the
	operating instructions in this
	Section. Also, reviewthe safety
	rules in Section 1: Safety, and
	the tiller and enginecontrols
	information in Section3:
	Featuresand Controls.

preventserious personal injury

,_ WARNING: To help

or damageto equipment:

•Before starting engine, put both wheels in the WHEELDRIVE position. Never have wheels in FREEWHEELpo- sition when engine is running. When

the wheels are in FREEWHEEL,they do not hold back the tiller and the tines

could propel the tiller rapidly forward or backward.

•Before starting engine, put Forward Clutch Bail (all models) and Reverse Clutch Control (Model 644A only) in neutral (disengaged) positions by re- leasing levers.

•Never run engine indoors or in en- closed, poorlyventilatedareas. Engine exhaust containscarbonmonoxide,an odorlessand deadlygas.

•Avoidengine muffler and nearbyareas. Temperaturesin these areas may ex- ceed 150° F.

3.Movethe Depth RegulatorLever all the way down to the "travel" position, so that the tines clear the ground.

4.Releaseall controls on the tiller.

5.Onengine'swith a fuel shut-off valve, turn valve to openposition, as instructed in the separateEngine Owner'sManual.

6.Put ignition switch and/or throttle con- trol lever located on engine in the "ON", "RUN", "FAST"or "START"position, as in- structed in the EngineOwner'sManual.

7.Chokeor prime engine,as instructed in EngineOwner'sManual.

8.Put one hand on fuel tank to stabilize unitwhen pulling starter ropehandle.Then use recoil starter to start engine, as in- structed in the EngineOwner'sManual. Whenenginestarts, gradually move choke lever (if so equipped) to "NO CHOKE", "CHOKEOFF"or "RUN" position.

9.Usethe "FAST"throttle speed setting when tilling.

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