Troy-Bilt 644H Tiller User Manual


 
Section3: FeaturesandControls
DepthRegulatorLever
This lever(G,Figure3-5) controls the
tilling depthof the tines. Pull the lever
straight backand slide it up or down to
engagethe notched height settings.
The highest notch (lever all the way
down) raisesthe tines approximately 1-
1/2"off the ground. This "travel" setting
allows the tiller to be movedwithout the
tines digging into the ground. Also use
this setting when starting the engine.
Movethe leverupwardto increasethe
tilling depth. Thelowest notch allows a
tilling depthof approximately 6"-8",
dependingon soil conditions.
Forbest results, begin tilling at the
deepestdepth possiblewithout causing
the tiller to bog down. Increasethe tilling
depthfrom one pass overthe soil to the
next.
Travel
Position
Figure3-5."Depthregulatorlever,
WARNING
Place the Depth Regulator
Lever in the "travel"
position before starting the
engine. This position
prevents the tines from
touching the ground until you
are ready to begin tilling.
Failure to follow this warning
HandlebarHeightAdjustment
Thehandlebarheight is adjustableto
three different settings (seeFigure3-6).
Asa general rule,adjust the handlebars
sothey areat waist levelwhen thetines
are3"-4" into thesoil.
ToAdjustthe Handlebars:
1. Stopthe engine,disconnect the spark
plug wire from the spark plug and allow
the engineto cool.
2. Removethe screws, Iockwashersand
nuts, reposition the handlebars,and
reinstall the hardware.
Figure3-6."Handlebarheightadjustment.
Anti-ReverseStake
This stake is locatedat the rear of the
transmission, under the tine hood (seeH,
Figure3-7). Its purposeis to automati-
cally help preventthe counter-rotating
tines from letting thetiller backup in the
direction of the operator if the tiller
wheels had beeninadvertently left in the
FREEWHEELposition. In this situation,
the Anti-ReverseStakewill beforced
down into theground, lifting the tines
upward out of the soil and helping
prevent backward motion of the tiller.
TheAnti-ReverseStakerequiresno adjust-
ment, but should be inspectedbefore
eachtiller useto verify that it swivels
freely. Removeanyclogged materials
(dirt, roots, rocks, etc.) that preventthe
Anti-ReverseStakefrom swinging freely.
H
Figure3-7:Anti-ReverseStake.
ENGINECONTROLS
could result in personal injury Referto theengine manufacturer'sEngine
or propertydamage. Owner's Manual(included in thetiller lit-
eraturepackage)to identify the controls
on your engine.
IMPORTANT:Thecontrol for stopping the
engine is located on the engine.
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