Troy-Bilt 643B Super Bronco manual Safety Alert Symbol

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SECTION 1: SAFETY

This machine meets voluntary safety stan- dard B71.8 – 1996, which is sponsored by the Outdoor Power Equipment Institute, Inc., and is published by the American National Standards Institute.

WARNING

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproduc- tive harm.

Safety Alert Symbol

This is a safety alert symbol. It is used in this manual and on the unit to alert you to potential hazards. When you see this symbol, read and obey the message that follows it. Failure to obey safety messages could result in personal injury or property damage.

Forward Clutch Bail

Reverse Clutch Control

 

 

(Models 643B & 645A)

 

Depth Regulator

 

Tine Hood Flap

 

Counter-Rotating-Tines

 

(CRT)

 

Wheel Drive Pin

Figure 1-1: Tiller features and controls. See separate Engine Owner’s Manual to identify engine controls.

Training

1. Carefully read this Own- er’s Manual, the separate Engine Owner’s Manual,

and any other literature you may receive. Be thoroughly familiar with the controls and the proper use of the tiller and its en- gine. Know how to stop the unit and disen- gage the controls quickly.

2.Never allow children to operate the tiller. Never allow adults to operate the tiller without proper instruction.

3. Keep the area of operation clear of all persons, particularly children and pets.

4.Keep in mind that the operator or user is responsible for accidents or hazards oc- curring to other people, their property, and themselves.

Preparation

1.Thoroughly inspect the area where the tiller is to be used and remove all foreign objects.

2.Be sure all tiller controls are released and both wheels are in the Wheel Drive po- sition before starting the engine.

3.Do not operate the tiller without wearing adequate outer garments. Avoid loose gar- ments or jewelry that could get caught in moving parts.

4.Do not operate the tiller when barefoot or wearing sandals, sneakers, or light foot- wear. Wear protective footwear that will improve footing on slippery surfaces.

5.Do not till near underground electric ca- bles, telephone lines, pipes or hoses. If in doubt, contact your telephone or utility company.

6.Warning: Handle fuel with care; it is highly flammable and its vapors are explo- sive. Take the following precautions:

a. Store fuel in containers specifically designed for this purpose.

b. The gas cap shall never be removed or fuel added while the engine is running. Allow the engine to cool for several minutes before adding fuel.

c. Keep matches, cigarettes, cigars, pipes, open flames and sparks away from the fuel tank and fuel container.

d. Fill fuel tank outdoors with extreme care. Never fill fuel tank indoors. Use a funnel or spout to prevent spillage.

e. Replace all fuel tank and container caps securely.

f. If fuel is spilled, do not attempt to start the engine, but move the ma- chine away from the area of spillage and avoid creating any source of ig- nition until fuel vapors have dissi- pated.

7.Never make adjustments when engine is running (unless recommended by manu- facturer).

Operation

1. Do not put hands or feet near or under rotating parts.

2.Exercise extreme caution when on or crossing gravel drives, walks, or roads. Stay alert for hidden hazards or traffic.

3. After striking a foreign object, stop the engine, remove the wire from the spark plug wire and prevent it from touching the spark plug. Thoroughly inspect the ma- chine for any damage and repair the dam- age before restarting and operating the machine.

4. Exercise caution to avoid slipping or fall- ing.

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Contents 11/15/06 Form no -02357A.fmTable of Contents Finding Model NumberCustomer Support Do not put hands or feet near or under rotating parts Safety Alert SymbolCheck all nuts, bolts, and screws for Refer to the Maintenance sectionsKeep children and pets away Use slower engine speedsOperating Symbols MaybeusedonthetillerandengineTo Avoid Serious Injury Inspect Unit AssemblyAssembly Steps IntroductionUse the handlebar to roll the tiller to a flat area Install Forward Clutch CableWith the Forward Clutch Bail Y, Fig While preventing the cable adjuster from turningCheck all nuts and screws for tightness Check Transmission OIL LevelFreewheel Ature package to identify the controls on your engineStop all tiller motion by releasing the Forward Clutch Bail Travel Position Shallow SettingsTo adjust the handlebars To operate the Forward Clutch BailChange engine oil Following steps describe how to start and stop the engineIntroduction BREAK-IN Operation Starting and StoppingTo move the Model 643C in reverse for short distances For forward motion of the wheels and power to the tinesOperating the Tiller Stopping the Engine and TillerTilling Tips & Techniques Read the following recommendations before tilling on slopes Tilling Tips & Techniques CON’TTilling On Slopes Clearing the TinesTerrace Gardening Loading and Unloading the TillerCheck Tire Pressure Transmission Gear OIL ServiceTiller Lubrication Check HardwareTine Inspection Removing⁄Installing a Single TineRemoving⁄Installing a Tine Assembly Bolo TinesChecking and Adjusting Replacement Belt InformationTo Check Forward Belt Tension To Check Reverse Belt Tension Forward Clutch Bail AdjustmentEngine Cleaning AIR Cleaner Service Engine OIL Service Models 643B & 645A onlyTo Change the Engine Oil Spark Plug ServiceSpark Arrester Screen Service OFF-SEASON StorageProblem Possible Cause Correction TroubleshootingPage 643C, 643D 645A Description Models 643B, 643C, 643D & 645AGW-1224-3 Models 643B, 643C, 643D & 645A Models 643B, 643C, 643D & 645A 634-43203 Page Page TROY-BILT Tiller Lifetime Limited Warranty

643B Super Bronco specifications

The Troy-Bilt 643B Super Bronco represents a robust and versatile addition to the world of outdoor power equipment, designed with the needs of gardeners and landscapers in mind. This rear-tine tiller is a notable choice for those looking to cultivate their gardens efficiently and effectively.

One of the standout features of the Troy-Bilt 643B is its powerful 306cc OHV engine, which provides ample torque and ensures that the tiller can tackle tough soil conditions with ease. This engine is specifically designed for superior performance and reliability, allowing users to till effectively in a variety of soil types, from sandy loam to clay.

The tiller boasts a 12-inch tilling width and a tilling depth of up to 8 inches, making it ideal for preparing garden beds and landscaping areas. The adjustable tilling depth allows gardeners to customize their cultivation process, enabling them to penetrate deeper for planting larger crops or more shallow for seedbed preparation.

Equipped with a rear-tine design, the Super Bronco brings several advantages. The rear-tine configuration provides better control and stability while working, making it easier to maneuver in tight spaces. Furthermore, the counter-rotating tines help to break up compact soil while reducing the chances of soil clumping, resulting in a finer tilled surface.

Another remarkable feature is the Troy-Bilt patented "Smart Till" technology, which allows users to select the most suitable tilling method for their specific soil conditions. This innovative technology enhances efficiency, saves time, and ensures that the tiller delivers optimal results with every pass.

For ease of use, the tiller is equipped with large, easy-grip controls and a comfortable handlebar design that reduces fatigue during extended use. Additionally, the rugged construction and all-terrain tires enable the Troy-Bilt 643B to navigate challenging landscapes without issue.

The maintenance of the Super Bronco is user-friendly, with features that facilitate easy access to essential components for tune-ups and repairs. Overall, the Troy-Bilt 643B Super Bronco combines power, technology, and practicality, making it an excellent choice for both novice and experienced gardeners seeking to enhance their outdoor projects.