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INTRODUCTION
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.
The other manual that came with your power
tool, the parts manual, contains all the
information that you need to order parts.
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© 1998 Ryobi Outdoor Products, Inc.
All Rights Reserved.
Click-Link® is a registered trademark of Ryobi
Outdoor Products.
Bump Head™ is a trademark of Ryobi Outdoor
Products.
SERVICE INFORMATION
Service on this unit both within and after the
warranty period should be performed only by
an authorized and approved service dealer.
Dial:
1-800-345-8746
in the United States or
1-800-265-6778
in Canada
to obtain the listing of the authorized service
dealer nearest you.
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 OF THE US PATENTS LISTED BELOW:
5,076,149; 4,901,682; 4,779,405; 4,651,422;
4,505,040; 4,463,498; 4,369,742; 4,342,236;
4,223,441; 2,125,688; D-249,012; D-239,329;
OTHER PATENTS PENDING.
2
TABLE OF CONTENTS
I.
California Emission Regulations . . . . . . . . 3
II.
Rules for Safe Operation . . . . . . . . . . . 4-9
A. Important Safety Information . . . . . . .4-6
B. Safety and International Symbols . . .7-8
C. Know Your Unit . . . . . . . . . . . . . . . . . .9
III. Assembly Instructions . . . . . . . . . . . 10-14
A. Installing and Adjusting J-Handle . . . .10
B. Installing the Harness . . . . . . . . . . . . .11
C. Removing and Installing Cutting . . . . . .
Attachment Shield . . . . . . . . . . . . . . 11
E. Remove the Cutting Blade and . . . . . . .
IV. Oil and Fuel Information . . . . . . . . . . . . . 15
V.
Starting/Stopping Instructions . . . . . . . . 16
VI. Operating Instructions . . . . . . . . . . . 17-20
B. Holding the Trimmer . . . . . . . . . . . . . .18
C. Adjusting Trimming Line Length . . . . .18
D. Tips for Best Trimming Results . . . . . .19
E. Decorative Trimming . . . . . . . . . . . . . .19
F. Cutting Blade Operating Tips . . . . .19-20
A. Maintenance Schedule . . . . . . . . . . . 20
B. Line Installation . . . . . . . . . . . . . . 21-22
C. Installing a Prewound Reel . . . . . . . . . 23
D. Air Filter Maintenance . . . . . . . . . . 23-24
F. Cleaning the Air Filter . . . . . . . . . . . . 24
H. Carburetor Adjustment . . . . . . . . . . . 25
I. Replacing the Spark Plug . . . . . . . . . 26
J. Accessories/Replacement parts . . . . . 26
VIII. Cleaning and Storage . . . . . . . . . . . . . . 27
X. Troubleshooting Chart . . . . . . . . . . . . . . 28
XI. Specifications . . . . . . . . . . . . . . . . . . . . 29
XII. Warranty . . . . . . . . . . . . . . . . . . . . . .31-32
CONTENTS OF CARTON
This unit should consist of the following:
• Model 780r or Model 790r
Trimmer/Brushcutter
J-Handle and Hardware
Cutting Attachment Shield and Hardware
Blade with Cover and Hardware
• Bottle of 2-Cycle Oil
• Operator's Manual
• Parts Manual
• Product Registration Card
• Locking Rod
• Shoulder Strap
These items may be in the hardware bag or
assembled on your unit.
. . . .23
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