Troy-Bilt 644H-Bronco, 645A-Bronco manual Forward Clutch Bail, Reverse Clutch Control

Section 3: Features and Controls

4.FOR WHEEL DRIVE mode (Figure 3-2): Slide the wheel outward and align the holes in the wheel hub (D, Figure 3-2)) and the wheel shaft (B). Insert the wheel drive pin (A) through the wheel hub and the wheel shaft. Secure the wheel drive pin with the hairpin cotter (C) by pushing the hairpin cotter in as far as it will go. Repeat for the other wheel and then remove the support from beneath the transmission.

5.FOR FREEWHEEL 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. Repeat for the other wheel and then remove the support from beneath the transmission.

Forward Clutch Bail

The Forward Clutch Bail (E, Figure 3-4) 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 (backward toward the operator).

To Operate the Forward Clutch Bail:

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.Release the bail to disengage (stop) the wheels and tines. Forward tiller motion will stop (the engine will continue to run).

Reverse Clutch Control

The Reverse Clutch Control (F, Figure 3-4) controls the engagement of reverse drive to the wheels and tines. This powered reversing feature is used for maneuvering the tiller only – never engage the tines in the ground while going in the reverse direction.

To Operate the Reverse Clutch Control:

1. Operate only when the wheels are in

the WHEEL DRIVE position (see the

“WARNING” statement at the left).

2. Stop all tiller motion by releasing the

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.

A

D

B

C

Figure 3-2: WHEEL DRIVE position.

A

D

B

C

Figure 3-3: FREEWHEEL position.

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.

EF

4. Release the 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.

Figure 3-4: Forward Clutch Bail (E) and Reverse Clutch Control (F).

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