Forward Clutch Bail; To Operate The Reverse Clutch Control; Handlebar Height Adjustment; Depth Regulator Lever - Troy-Bilt TUFFY 634BM Operator's Manual

Figure3-3: FREEWHEEL position.
,_ WARNING: Use extreme
caution when reversing or
pulling the machine towards
you. Look behind to avoid
obstacles.
Neverattempt to till in reverse.
Failureto follow this warning
could result in personal injury
or property damage.
To operatethe Reverse ClutchControl:
1. Put wheels in WHEELDRIVEposition
(see "WARNING" statement at the left).
2. Stop all tiller motion by releasingthe
Forward Clutch Bail.
_, WARNING: Beforestarting 3. Lift the handlebar until the tines clear
engine, be sure that both the ground, look behind you to avoid any
wheels are in WHEELDRIVE obstacles, and then pull the control knob
position. See Whesl Drive Pins (F, Figure3-4) out. The wheels and tines
for instructions, will rotate in a reverse direction.
Engagingthe Forward Clutch 4. Releasethe control knob to disengage
Bail or ReverseClutch Control (stop) the wheelsand tines (the engine will
(if equipped) when the wheels continue to run).
are not in WHEELDRIVEcould
allow the tines to rapidly propel
the tiller forward or backward.
Failureto comply could cause
loss of tiller control, property
damage, or personal injury.
FORWARD CLUTCHBAIL
Th ForwardClutch Bail (E, Figure3-4) con-
trols the engagement of forward drive to
the wheelsand tines.
To operatethe ForwardClutch Bail:
1. Put wheelsin WHEELDRIVEposition Figure3-4:AIImodels havea Forward Clutch
(see "WARNING"statement above).
Bail (E). Only
Models634F/g34B havea Re,
verseClutchControl(F).
2. Lift and hold the clutch bail (E, Figure 3-
4)againstthehandlebartostartthewheels DEPTH REGULATOR LEVER
and tines rotating in a forward direction.
This lever (G, Figure3-5) controls the till-
3. Releasethe clutch bail to disengage ing depth of the tines. Pull the lever back
(stop) the wheels and tines (the engine will and slide it up or down to engagethe
continue to run). notched height settings.
REVERSE CLUTCHCONTROL The"travel position" (highest notch) raises
(Models 634F/634B only) the tines approximately 1-1/2" off the
ground, allowing the tiller to be moved
The ReverseClutch Control (F,Figure 3-4) without the tines contacting the ground.
controls the engagement of reverse drive This setting should also be used when
to the wheels and tines. The reversing starting the engine.
feature is usedfor maneuveringthe tiller
only-- never engage the tines in the Moving the lever upward will increase the
groundwhile operating in reverse, tilling depth. Thelowest notch allows a till-
ing depth of approximately 6", depending
on soil conditions. For best results, always
begin tilling at a very shallow depth setting
and gradually increasethe tilling depth.
WARNING: Do not attempt
to till too deeply too quickly.
Graduallywork down to deeper
tilling depths.
Placethe Depth Regulator
Lever in the "travel" position
before starting the engine. This
position preventsthe tines from
touching the ground until you
are ready to begin tilling.
Failureto follow this warning
could result in personal injury
or property damage.
Figure 3-5: DepthRegulator L ever(GJ.
HANDLEBAR HEIGHT ADJUSTMENT
Thehandlebar height is adjustable to three
different settings (Figure 3-6). In general,
adjust the handlebars so they are at waist
level when the tines are 3"-4" in the soil.
Toadjust the handlebars:
1. Stop engine, disconnect spark plug
wire from spark plug and allow engine to
cool.
2. Remove hardware, reposition handle-
bars, and reinstall hardware securely.
Figure3-6: Handlebar h eight adjustment.
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