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Troy-Bilt
643C Tuffy/Bronco, 645A Super Bronco manual
Models:
643C Tuffy/Bronco
645A Super Bronco
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Troubleshooting
Install
Replacement Belt Information
Warranty
Maintenance
Procedure
Handlebar Height Adjustment
Checklist
Engine Cleaning
Safety Alert Symbol
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Image 23
NOTES
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Page 24
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Contents
643C - Tuffy / Bronco CRT
IMPORTANT READ SAFETY RULES AND INSTRUCTIONS
Operator’s Manual
Rear-tineTiller Models
CUSTOMER SUPPORT
TABLE OF CONTENTS
Content
FINDING MODEL NUMBER
Preparation
SECTION 1 SAFETY
Safety Alert Symbol
Training
c.Use slower engine speeds
Maintenance and Storage
TO AVOID SERIOUS INJURY
Operating Symbols
Decals
INTRODUCTION
SECTION 2 ASSEMBLY
Loose Parts List
ASSEMBLY STEPS
M M N
STEP 4 INSTALL FORWARD CLUTCH CABLE
D G F E
Page
Section 3 Features and Controls
STEP 6 CHECK TRANSMISSION OIL LEVEL
STEP 7 ADD MOTOR OIL
STEP 8 CHECK HARDWARE
INTRODUCTION
SECTION 3 FEATURES AND CONTROLS
WARNING Before
WHEEL DRIVE PINS
FORWARD CLUTCH BAIL
HANDLEBAR HEIGHT ADJUSTMENT
Settings
To adjust the handlebars
Pre-StartChecklist
BREAK-INOPERATION
STARTING AND STOPPING
WARNING To help
Stopping the Tiller and Engine
OPERATING THE TILLER
Stopping the Engine and Tiller
Avoid Making Footprints
TILLING TIPS & TECHNIQUES
Tilling Depths
Let the Tiller Do the Work
Clearing the Tines
TILLING TIPS & TECHNIQUES CON’T
Tilling On Slopes
WARNING: Do not
Terrace Gardening continued
TILLING TIPS & TECHNIQUES CON’T
LOADING AND UNLOADING THE TILLER
CHECK HARDWARE
SECTION 5 MAINTENANCE
TRANSMISSION GEAR OIL SERVICE
TILLER LUBRICATION
B B A
BOLO TINES
B. Removing⁄Installing a Single Tine
C. Removing⁄Installing a Tine Assembly
FORWARD DRIVE BELT TENSION
CHECKING AND ADJUSTING
Replacement Belt Information
FORWARD
ENGINE OIL SERVICE
FORWARD CLUTCH BAIL ADJUSTMENT
ENGINE CLEANING
AIR CLEANER SERVICE
THROTTLE LEVER ADJUSTMENT
SPARK PLUG SERVICE
SPARK ARRESTER SCREEN SERVICE
OFF-SEASONSTORAGE
CORRECTION
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
Page
Models 643C, 643B & 645A
DESCRIPTION
MODELS 643C, 643B & 645A
PART NO
DESCRIPTION
DESCRIPTION
MODELS 643C, 643B & 645A
DESCRIPTION
10 9 7 4
FRONT
MODELS 643C, 643B & 645A
DESCRIPTION
13 A
MODELS 643C, 643B & 645A
DESCRIPTION
MODELS 643C, 643B & 645A
DESCRIPTION
Page
Page
TROY-BILTTILLER LIFETIME LIMITED WARRANTY