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Stopping the Engineand Tiller
1. Tostop thewheelsandtines, releasethe
Forward ClutchBail (all models) orthe Re-
verse ClutchControl (Model 644A) --
whichevercontrol is in use.
2. Tostop the engine,put the ignition
switch and/or thethrottle control leverin
the "OFF"or "STOP"position.
OPERATINGTHE TILLER
Thefollowing operatinginstructions pro-
videguidelinesto usingyour tiller effec-
tively and safely. Besure to read Tilling
Tips & Techniquesin this Section before
actually putting the tines into the soil.
This is a "Counter-Rotating-Tine" (CRT)
tiller. It operatesdifferently from "Stan-
dard-Rotating-Tine" (SRT)tillers. As the
wheels pull forward, the tines rotate back-
ward, creating an "uppercut" action which
digs deeply, uprooting soil and weeds.
1. Followthe Pre-Start Checklistat the be-
ginning of this Section. Besure that the
wheelsare in theWHEELDRIVEposition.
2. Movethe DepthRegulator Leverall the
way down, so that thetines clearthe
ground. Usethis position when practicing
with thetiller and when traveling between
tilling sites. Beforeactuallytilling, move
the leverto the desireddepth setting (see
Tilling Tips & Techniques).
Fig.4-2:Useonehandtoguidetillerwhen
movingforward.
3. Start engineand allow it to warm up.
Thenput throttle in "FAST"setting.
4. Forforwardmotion ofthe wheels and
powerto thetines:
(a) Pull Forward Clutch Bail (Fig.4-1) up
against handlebar.Releasebailto stop for-
ward motion of wheels and tines.
(b) Whentilling, relaxand letthe wheels
pull the unit while the tines dig.Walk be-
hind anda little to onesideof the unit. Use
one hand,yet keepa light--but secure--
grip on the handlebar (while keepingyour
arm loose). SeeFig.4-2. Letthe unit move
at its own paceand do not push down on
the handlebarsto try and forcethe tines to
dig deeper-- this takesweight off the
wheels and reducestraction.
,_ WARNING: Donotpush
down onthe handlebarsto try
to makethetiller till more
deeply.This preventsthe
wheelsfrom holding the tiller
backand canallowthe tines to
rapidly propelthe tiller forward,
which could resultin loss of
control, property damage,or
personalinjury.
5. Forreverse motion of the wheelsand
tines (Model644A only):
(a) Lookbehindand exercisecaution when
operating in reverse.Do not till while in
reverse.
(b) Stopall forward motion. Lift handlebar
with one handuntiltines areoff the ground
andthen pull ReverseClutchControl knob
out (seeFig.4-3). Tostop reversing,letgo
of ReverseClutch Control knob.
(b) Swingthe handlebarto theleft so the
right wheeltakesa "step" backward.Next
swing the handlebarto the right so theleft
wheel"steps" backward.Repeatasneeded.
(c) If longer distances needto becovered
in reverse,shut off the engine,then place
the two wheels in FREEWHEEL.
7. ToTurnthe Tiller Around:
(a) Practiceturning the tiller in a level,
openarea. Beverycarefulto keepyour feet
and legsaway from the tines.
(b) Tobeginaturn, lift thehandlebarsuntil
thetinesareoutofthe groundandtheengine
andtinesarebalancedoverthewheels(Fig.
4-4).
(c) With tiller balanced,push sideways on
handlebarto steer in direction of turn (Fig.
4-5). After turning, slowly lower tines into
soil to resumetilling.
Fig.4-3:Raisetinesoffgreundandlook
behindwhenmovinginreverse.
6. Tomovethe Model640Cin reversefor
short distances:
(a) Releaseforward ClutchBail.Thenlift
handlebaruntil tines are off theground.
13
Fig. 4-4: Tobegin turn, lift handlebarsuntil
tines are outof groundand unit is balanced.
Fig.4-5: Withtinesoutofgreund,pushhan-
dlebarssidewaysto turntiller.
StoppingtheTillerandEngine
1. Tostop thewheelsandtines, releasethe
Forward ClutchBail (all models) orthe Re-
verse ClutchControl (Model 644A) --
whichevercontrol is in use.
2. Tostop the engine,put the ignition
switch and/orthe throttle control leverin
the "OFF"or "STOP"position.