Troy-Bilt
643C Tuffy/Bronco, 645A Super Bronco
manual
Troubleshooting
Install
Safety Alert Symbol
Assembly
To adjust the handlebars
Replacement Belt Information
Safety
Transmission Gear OIL Service
Page 31
NOTES
31
Page 30
Page 32
Image 31
Page 30
Page 32
Contents
Operator’s Manual
Finding Model Number
Table of Contents
Customer Support
Do not put hands or feet near or under rotating parts
Safety Alert Symbol
Use slower engine speeds
Refer to the Maintenance sections
Keep children and pets away
Starting the engine or engaging
To Avoid Serious Injury
Operating Symbols
Inspect Unit
Assembly
Assembly Steps
Introduction
Use the handlebar to roll the tiller to a flat area
Install Forward Clutch Cable
With the Forward Clutch Bail Y, Fig
While preventing the cable adjuster from turning
Check all nuts and screws for tightness
Safety
Operation
Freewheel
Ature package to identify the controls on your engine
From wheel drive shaft B
Stop all tiller motion by releasing the Forward Clutch Bail
Travel Position Shallow Settings
To adjust the handlebars
To operate the Forward Clutch Bail
Change engine oil
Following steps describe how to start and stop the engine
Introduction BREAK-IN Operation
Starting and Stopping
To move the Model 643C in reverse for short distances
For forward motion of the wheels and power to the tines
Operating the Tiller
Stopping the Engine and Tiller
Tilling Tips & Techniques
Read the following recommendations before tilling on slopes
Tilling Tips & Techniques CON’T
Tilling On Slopes
Clearing the Tines
Terrace Gardening
Loading and Unloading the Tiller
Check Tire Pressure
Transmission Gear OIL Service
Tiller Lubrication
Check Hardware
Tine Inspection
Removing⁄Installing a Single Tine
Removing⁄Installing a Tine Assembly
Bolo Tines
Replacement Belt Information
Checking and Adjusting
To Check Forward Belt Tension
To Check Reverse Belt Tension
Forward Clutch Bail Adjustment
Engine Cleaning AIR Cleaner Service Engine OIL Service
Models 643B & 645A only
To Change the Engine Oil
Spark Plug Service
Spark Arrester Screen Service
OFF-SEASON Storage
Problem Possible Cause Correction
Troubleshooting
Page
Models 643C, 643B & 645A
Description
Models 643C, 643B & 645A
GW-1224-3
Front
Model 643C
Models 643C, 643B & 645A
Page
Page
TROY-BILT Tiller Lifetime Limited Warranty
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