Troy-Bilt PRO LINE 644HMBRONCO Operator's Manual page 11

Section 3: Features a ndControls
4. FORWHEELDRIVEmode (Figure3-2):
Slide the wheel outward and align the
holes in the wheel hub (D, Figure3-2))
and the wheel shaft (B). Insert the wheel
drive pin (A) through the wheel hub and
the wheel shaft. Securethe wheel drive
pin with the hairpin cotter (C) by pushing
the hairpin cotter in as far as it will go.
Repeatfor the other wheel and then
remove the support from beneaththe
transmission.
5. FORFREEWHEEL mode (Figure 3-3):
Slide the wheel inward and insert the
wheel drive pin (A, Figure 3-3) only
through the hole in the wheel shaft (B).
Secure the wheel drive pin with the
hairpin cotter (C) by pushing the hairpin
cotter in as far as it will go. Repeatfor the
other wheel and then remove the support
from beneaththe transmission.
I
Figure3-2: WHEEL DRIVEposition.
I
D
B
Figure3-3: FREEWHEEL position.
Forward Clutch Bail
The Forward Clutch Bail (E, Figure3-4)
controls the engagement of forward drive
to the wheels and power to the tines.
NOTE: The wheels will rotate in a forward
direction; the tines will rotate counter-
clockwise (backwardtoward the operator).
To Operatethe Forward ClutchBail:
1. Put the wheels in the WHEEL DRIVE
position (see the following "WARNING"
statement).
2. Lift and hold the bail against the
handlebar. The wheels and tines will
rotate- and the tiller will move in a
forward direction.
3. Releasethe bail to disengage(stop)
the wheels and tines. Forwardtiller motion
will stop (the engine will continue to run).
WARNING
Before starting the engine, be
sure that both wheels are in
the WHEEL DRIVE position.
See "Wheel Drive Pins" for
instructions.
Engaging the Forward Clutch
Bail or the Reverse Clutch
Control when the wheels are
not in the WHEEL DRIVE
position could allow the tines
to rapidly propel the tiller
forward or backward.
Failure to comply could cause
loss of tiller control, property
damage, or personal injury.
ReverseClutchControl
The ReverseClutch Control (F, Figure3-4)
controls the engagement of reverse drive
to the wheels and tines. This powered
reversing feature is used for maneuvering
the tiller only - never engagethe tines in
the ground while going in the reverse
direction.
To Operatethe Reverse ClutchControl:
1. Operateonly when the wheels are in
the WHEEL DRIVEposition (seethe
"WARNING" statement at the left).
2. Stop all tiller motion by releasingthe
Forward Clutch Bail.
3. Lift up the handlebar until the tines
clear the ground, look behind you to avoid
any obstacles, and then pull the reverse
clutch control knob toward you. The
wheels will rotate in a reverse direction.
4. Releasethe reverse clutch control
knob to disengage (stop) the wheels and
tines. All reverse motion will stop (the
engine will continue to run).
WARNING
• Use extreme caution when
reversing or pulling the
machine towards you. Look
behind to avoid obstacles.
• Never attempt to till in
reverse.
Failure to follow this warning
could result in personal injury
or property damage.
Figure34: Fonvard Clutch Bail (E)andReverse
Clutch Control ( F).
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