Manual
SECTION4: OPERATION
_ ARNING: Before
operating your machine,
carefully readand understand
all safety (Section 1), controls
(Section 3) and operating
instructions (Section4) inthis
Manual,the separateEngine
Owner's Manual,and on the
decalson the machine.
Failureto follow these
instructions can result in
serious personal injury.
INTRODUCTION
Readthis OperationSection andthe sepa-
rate EngineOwner'sManualbeforeyou
start the engine. Then,take thetime to fa-
miliarize yourself with the basic operation
of the tiller before using it in the garden.
Findan open, levelareaand practice using
the tiller controls without the tines engag-
ing the soil (put tines in "travel" setting).
Only after you've becomecompletely fa-
miliar with the tiller should you beginusing
it in the garden.
BREAK-INOPERATION
Perform the following maintenance after
the first two (2) hours of new operation
(see MaintenanceSection in this manual
and in the Engine Owner's Manual).
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.
STARTINGANDSTOPPING
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's Manualprovidedwith 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's Manual.
ReverseClutchControl
(Mode/s643B&
ClutchBail
DepthRegulator
DrivePin
Fig. 4-1
5. Checkthat all safety guards andcovers
are in place.
6. Checkair cleanerand engine cooling
system. SeeEngineOwner's Manual.
_ WARNING: GASOLINEIS
HIGHLYFLAMMABLEAND ITS
VAPORSAREEXPLOSIVE.
Followgasoline safety rules in
this Manual(seeSection 1)and
in the separateEngineOwner's
Manual.
Failureto follow gasolinesafety
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's Manual.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.
_ WARNING: Donotattempt
to engagethe tines or wheels
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.
1. Completethe Pre-StartChecklistonthis
page.
2. Putthe wheels inthe WHEELDRIVEpo-
sition (see WheelDrivePinsin Section3 of
this manual).
,_ WARNING: Tohelp
preventserious personalinjury
or damageto equipment:
• Before starting engine, put both
wheels in the WHEELDRIVEposition.
Never have wheels in FREEWHEELpo-
sition when engine is running. When
thewheels arein FREEWHEEL,they do
not hold back the tiller and the tines
couldpropelthetiller rapidly
forwardor backward.
• Before starting engine, put Forward
Clutch Bail (all models) and Reverse
Clutch Control (Models 643B & 645A
only)in neutral (disengaged)positions
by releasinglevers.
• Never run engine indoors or in en-
closed,poorlyventilatedareas. Engine
exhaustcontainscarbonmonoxide,an
odorlessanddeadlygas.
• Avoidenginemufflerandnearbyareas.
Temperaturesin these areas may ex-
ceed 150° F.
3. Movethe Depth RegulatorLever all the
way down to the "travel" position, sothat
the tines clear the ground.
4. Releaseall controls on the tiller.
5. Onengine's with 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, asin-
structed in the EngineOwner's Manual.
7. Chokeor prime engine,as instructed in
EngineOwner's Manual.
8. Put one hand on fueltank to stabilize
unit when pulling starter ropehandle.Then
use recoil starter to start engine,as in-
structed in the EngineOwner's Manual.
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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