Troy-Bilt 643B Super Bronco manual Loading and Unloading the Tiller, Terrace Gardening

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TILLING TIPS & TECHNIQUES (CON’T)

Terrace Gardening (continued)

• To create a terrace, start at the top of the slope and work down. Go back and forth across the first row as shown in Fig. 4-10.

• Each succeeding lower terrace is started by walking below the terrace you’re preparing. For added stability of the tiller, always keep the uphill wheel in the soft, newly tilled soil. Do not till the last 12" or more of the downhill outside edge of each terrace. This untilled strip helps prevents the terraces from breaking apart and washing downhill. It also provides a walking path between rows.

Fig. 4-10

LOADING AND UNLOADING THE TILLER

WARNING: Loading and unloading the tiller into a vehicle is potentially hazardous and we don’t recommend doing so unless absolutely necessary, as this could result in personal injury or property damage. However, if you must load or unload the tiller, follow the guidelines given next.

•Before loading or unloading, stop the en- gine, wait for all parts to stop moving, disconnect the spark plug wire and let the engine and muffler cool.

•The tiller is too heavy and bulky to lift safely by one person. Two or more people should share the load.

•Use sturdy ramps and manually (engine shut off) roll the tiller into and out of the vehicle. Two or more people are needed to do this.

•The ramps must be strong enough to support the combined weight of the tiller and any handlers. The ramps should pro- vide good traction to prevent slipping; they should have side rails to guide the tiller along the ramps; and they should have a locking device to secure them to the vehicle.

•The handlers should wear sturdy footwear that will help to prevent slipping.

•Position the loading vehicle so that the ramp angle is as flat as possible (the less incline to the ramp, the better). Turn the vehicle’s engine off and apply its parking brake.

•When going up ramps, stand in the normal operating position and push the tiller ahead of you. Have a person at each side to turn the wheels.

•When going down ramps, walk backward with the tiller following you. Keep alert for any obstacles behind you. Position a per- son at each wheel to control the speed of the tiller. Never go down ramps tiller-first, as the tiller could tip forward.

•Place wooden blocks on the downhill side of the wheels if you need to stop the tiller from rolling down the ramp. Also, use the blocks to temporarily keep the tiller in place on the ramps (if necessary), and to chock the wheels in place after the tiller is in the vehicle.

•After loading the tiller, prevent it from rolling by engaging the wheels in the WHEEL DRIVE position. Chock the wheels with blocks and securely tie the tiller down.

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Contents Form no -02357A.fm 11/15/06Finding Model Number Table of ContentsCustomer Support Safety Alert Symbol Do not put hands or feet near or under rotating partsRefer to the Maintenance sections Keep children and pets awayUse slower engine speeds Check all nuts, bolts, and screws forMaybeusedonthetillerandengine Operating SymbolsTo Avoid Serious Injury Assembly Assembly StepsIntroduction Inspect UnitInstall Forward Clutch Cable Use the handlebar to roll the tiller to a flat areaWhile preventing the cable adjuster from turning With the Forward Clutch Bail Y, FigCheck Transmission OIL Level Check all nuts and screws for tightnessAture package to identify the controls on your engine FreewheelTravel Position Shallow Settings To adjust the handlebarsTo operate the Forward Clutch Bail Stop all tiller motion by releasing the Forward Clutch BailFollowing steps describe how to start and stop the engine Introduction BREAK-IN OperationStarting and Stopping Change engine oilFor forward motion of the wheels and power to the tines Operating the TillerStopping the Engine and Tiller To move the Model 643C in reverse for short distancesTilling Tips & Techniques Tilling Tips & Techniques CON’T Tilling On SlopesClearing the Tines Read the following recommendations before tilling on slopesLoading and Unloading the Tiller Terrace GardeningTransmission Gear OIL Service Tiller LubricationCheck Hardware Check Tire PressureRemoving⁄Installing a Single Tine Removing⁄Installing a Tine AssemblyBolo Tines Tine InspectionReplacement Belt Information Checking and AdjustingTo Check Forward Belt Tension Forward Clutch Bail Adjustment Engine Cleaning AIR Cleaner Service Engine OIL ServiceModels 643B & 645A only To Check Reverse Belt TensionSpark Plug Service Spark Arrester Screen ServiceOFF-SEASON Storage To Change the Engine OilTroubleshooting Problem Possible Cause CorrectionPage 643C, 643D 645A Models 643B, 643C, 643D & 645A DescriptionGW-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.
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