Lawn-Boy 520R - Table of Contents; Introduction

2003 by Lawn-Boy, Inc.
All Rights Reserved
Printed in USA 2
The engine exhaust from this product contains
chemicals known to the State of California to
cause cancer, birth defects, or other reproductive
harm.
Warning
Important This engine is not equipped with a spark
arrester muffler. It is a violation of California Public
Resource Code Section 4442 to use or operate this engine
on any forest-covered, brush-covered, or grass-covered
land. Other states or federal areas may have similar laws.
This spark ignition system complies with Canadian
ICES-002.
Ce système d’allumage par étincelle de véhicule est
conforme à la norme NMB-002 du Canada.
Contents
Page
Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safe Operating Practices 3. . . . . . . . . . . . . . . . . . .
Lawn-Boy Snowthrower Safety 4. . . . . . . . . . . . . .
Safety and Instruction Decals 5. . . . . . . . . . . . . . .
Assembly 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loose Parts 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unfolding the Handle 7. . . . . . . . . . . . . . . . . . . . . .
Installing the Discharge Chute 8. . . . . . . . . . . . . . .
Installing the Chute Crank 8. . . . . . . . . . . . . . . . . .
Before Starting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mixing Gasoline and Oil 9. . . . . . . . . . . . . . . . . . .
Filling the Fuel Tank 10. . . . . . . . . . . . . . . . . . . . . .
Reviewing the Maintenance Schedule 10. . . . . . . . .
Operation 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Controls 10. . . . . . . . . . . . . . . . . . . . . . . .
Starting the Engine 10. . . . . . . . . . . . . . . . . . . . . . . .
Stopping the Engine 11. . . . . . . . . . . . . . . . . . . . . . .
Starting the Rotor Blades 11. . . . . . . . . . . . . . . . . . .
Stopping the Rotor Blades 11. . . . . . . . . . . . . . . . . .
Adjusting the Discharge Chute 11. . . . . . . . . . . . . .
Snowthrowing Tips 11. . . . . . . . . . . . . . . . . . . . . . .
Maintenance 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Maintenance Schedule 12. . . . . . . .
Adjusting the Control Cable 12. . . . . . . . . . . . . . . .
Replacing the Scraper 13. . . . . . . . . . . . . . . . . . . . .
Replacing the Rotor Blades 14. . . . . . . . . . . . . . . . .
Page
Replacing the Spark Plug 15. . . . . . . . . . . . . . . . . . .
Replacing the Drive Belt 16. . . . . . . . . . . . . . . . . . .
Emptying the Fuel Tank 16. . . . . . . . . . . . . . . . . . . .
Storage 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing the Fuel System 17. . . . . . . . . . . . . . . . . .
Preparing the Engine 17. . . . . . . . . . . . . . . . . . . . . .
Preparing the Snowthrower 17. . . . . . . . . . . . . . . . .
Folding the Handle 17. . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Lawn-Boy Worry Free Five-Year Starting
Guarantee 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal Emission Control Warranty Statement 22. . . . .
A Two-Year Full Warranty 24. . . . . . . . . . . . . . . . . . . .
Warning
The engine exhaust from this product contains
chemicals known to the State of California to
cause cancer, birth defects, or other reproductive
harm.
Introduction
Read this manual carefully to learn how to operate and
maintain your product properly. The information in this
manual can help you and others avoid injury and product
damage. Although Lawn-Boy designs and produces safe
products, you are responsible for operating the product
properly and safely.
Whenever you need service, genuine Lawn-Boy parts, or
additional information, contact an Authorized Service
Dealer or Lawn-Boy Customer Service and have the
model and serial numbers of your product ready. Figure 1
illustrates the location of the model and serial numbers on
the product.
637
1
Figure 1
1. Model number and serial number decal