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THANK YOU
Thank you for buying this quality product. This modern
outdoor power tool will provide many hours of useful
service. You will find it to be a great labor-saving device.
This operator’s manual provides you with easy-to-
understand operating instructions. Read the whole
manual and follow all the instructions to keep your new
outdoor power tool in top operating condition.
PRODUCT REFERENCES, ILLUSTRATIONS AND
SPECIFICATIONS
All information, illustrations and specifications in this
manual are based on the latest product information
available at the time of printing. We reserve the right to
make changes at any time without notice.
Copyright
©
2002 MTD SOUTHWEST INC
All Rights Reserved.
SERVICE INFORMATION
Service on this unit both within and after the warranty
period should be performed only by an authorized and
approved service dealer.
• Call 1-800-345-8746 in the United States, or
1-800-668-1238 in Canada, to obtain a list of
authorized service dealers near you
Or
• Go to www.RyobiOutdoor.com on the World Wide
Web for a list of authorized service dealers
DO NOT RETURN THE UNIT TO THE RETAILER.
NOTE: PROOF OF PURCHASE WILL BE REQUIRED
FOR WARRANTY SERVICE.
Make sure this manual is carefully read and understood
before starting or operating this equipment.
THIS PRODUCT IS COVERED BY ONE OR MORE
US PATENTS, OTHER PATENTS PENDING.
To view and print a complete parts list, go to our
web site, www.RyobiOutdoor.com. Or, you can
request a copy by calling 1-800-345-TRIM
(1-800-345-8746). Please have the unit model and
serial number when calling.
INTRODUCTION
2
TABLE OF CONTENTS
I. California Emission Regulations . . . . . . . . . . . . . . . . . 3
II. Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . 4-7
A. Important Safety Information . . . . . . . . . . . . . . . . . 4
B. Safety and International Symbols . . . . . . . . . . . . . 5
C. Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
III. Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . 8
A. Assembling the Unit . . . . . . . . . . . . . . . . . . . . . . . . 8
B. Positioning the Handlebars . . . . . . . . . . . . . . . . . . 8
C. Installing the Wheel Bracket Assembly . . . . . . . . . 8
IV. Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . 9-10
V. Starting/Stopping Instructions . . . . . . . . . . . . . . 10-11
VI. Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . 12
A. Operating Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
B. Adjusting Tine Depth . . . . . . . . . . . . . . . . . . . . . . 12
VII. Maintenance and Repair Instructions . . . . . . . . . 13-18
A. Maintenance Schedule . . . . . . . . . . . . . . . . . . . . 13
B. Tine Removal and Replacement . . . . . . . . . . . . . 13
C. Checking the Oil Level . . . . . . . . . . . . . . . . . . . . . 14
D. Changing the Oil . . . . . . . . . . . . . . . . . . . . . . . . . 14
E. Air Filter Maintenance . . . . . . . . . . . . . . . . . . . . . 15
F. Carburetor Adjustment . . . . . . . . . . . . . . . . . . . . 16
G. Rocker Arm Clearance . . . . . . . . . . . . . . . . . . . . . 16
H. Replacing the Spark Plug . . . . . . . . . . . . . . . . . . 18
I. Spark Arrestor Maintenance . . . . . . . . . . . . . . . . 18
J. Accessories/Replacement parts . . . . . . . . . . . . . 18
VIII. Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . 19
A. Cleaning the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 19
B. Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
C. Long Term Storage . . . . . . . . . . . . . . . . . . . . . . . 19
D. Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
IX. Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . 20
X. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
XI. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-24
CONTENTS OF CARTON
This unit includes the following:
• Model 510r Garden Cultivator with Handlebars
•Wheel Bracket Assembly (located in top insert)
• Hardware Pack
• Bottle of 4-Cycle Oil
•Operator's Manual
• Product Registration Card
Examine all parts to make certain that nothing is missing
and no breakage has occurred during shipping. Any
damaged or missing part must be replaced before using
this product.