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Model 634B Shown
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
WARNING:
This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-
covered, brush-covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrester meeting applicable
local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of
California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws.
Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized service dealer or
contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.
TROY-BILT LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
PRINTED IN U.S.A.
Operator's Manual
Rear-tine Tiller Models
630C — Tuffy
634F — Bronco
634B — Super Bronco
®
TM
770-10594C.fm
FORM NO.
11/25/02
TM
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Summarization of Contents
Getting Started and Support
Finding Model Number
Locate and record your tiller's model and serial number for support.
Engine Information Source
Engine manufacturer handles performance, warranty, and service issues.
Contacting Customer Support
Contact support for assembly or operation questions.
Safety and Initial Training
Operator Training and Safety
Read manuals, understand controls, and know how to stop the unit quickly.
Pre-Operation Preparation Steps
Inspect area, release controls, and ensure wheels are in drive position before starting.
Tiller Features and Identification
Safety and Operational Decals
Keep decals clean and legible for user guidance and safety.
Understanding Operating Symbols
Learn the meaning of various symbols used on the tiller and engine.
Assembly and Component Installation
Unpacking and Part Verification
Remove packaging, verify parts against the list, and inspect for damage.
Handlebar Assembly and Adjustment
Attach and adjust the handlebar for user comfort and control.
Wheel Drive Pin Configuration
Set wheel drive pins for freewheel or drive mode.
Clutch Cable Installation and Adjustment
Connect and adjust forward/reverse clutch cables for proper function.
Controls and Operation Overview
Engine Control Identification
Refer to the engine manual for control identification and operation.
Clutch Controls for Tiller Motion
Engage forward/reverse drive to wheels and tines using clutch controls.
Depth and Handlebar Height Adjustments
Adjust tines depth and handlebar height for optimal use and comfort.
Operating Your Tiller Safely
Break-In Procedure and Initial Maintenance
Perform initial maintenance after the first two hours of operation.
Starting and Stopping the Engine
Learn pre-start checks and engine start/stop sequences.
Tiller Operation Guidelines
Safe and effective use of the tiller, including forward, reverse, and turning.
Tilling Tips and Techniques
Optimal Tilling Depths and Soil Prep
Adjust depth settings and prepare soil for optimal tilling results.
Power Composting for Soil Health
Burying organic matter to enrich soil and promote decomposition.
Safe Tilling on Slopes
Recommendations for safe tilling on slopes and terrace creation.
Tine Clearing and Tiller Transport
Procedures for clearing debris and safe transport of the tiller.
Scheduled Maintenance
Tiller Lubrication and Hardware Checks
Lubricate specific points and check hardware tightness regularly.
Tire Pressure and Gear Oil Levels
Check tire pressure and maintain transmission gear oil level.
Drive Belt Tension Adjustment
Check and adjust forward drive belt tension for proper performance.
Engine Care and Off-Season Storage
Maintain engine, air filter, oil, and prepare for off-season storage.
Troubleshooting Common Problems
Engine Performance Issues
Solutions for engine starting, running, or overheating issues.
Tiller Operational Faults
Addresses problems with wheels, tines, or overall tilling effectiveness.
Parts Identification
Parts List for Model 630C
Comprehensive list of parts for the Model 630C tiller.
Parts List for Models 634F/634B
Comprehensive list of parts for Models 634F and 634B tillers.
Warranty and Service Information
Understanding Your Limited Warranty
Details on what is covered, not covered, and commercial use limitations.
How to Obtain Service and Support
Instructions on how to find a dealer and obtain warranty service.
Need help?
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Questions and answers