INTRODUCTION
2
TABLE OF CONTENTS
THANK YOU
Thank you for purchasing this quality product.
This modern outdoor power tool is designed to
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 entire
manual and follow all of 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 of 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.
Bump Head™ is a trademark of Ryobi Outdoor
Products.
Click-Link
®
is a registered trademark of Ryobi
Outdoor Products.
I.
California Emission Regulations . . . . . . . . 3
II.
Rules for Safe Operation . . . . . . . . . . . 3-8
A. Important Safety Information . . . . . . 4-6
B. Safety and International Symbols . . . 6-7
C. Know Your Unit . . . . . . . . . . . . . . . . . . 8
III. Assembly Instructions . . . . . . . . . . . . 9-12
A. Adjusting the J-Handle . . . . . . . . . . . . 9
B. Installing the Harness . . . . . . . . . . . . . 9
C. Removing and Installing the
Cutting Attachment Shield . . . . . . . . . 10
D. Remove the Cutting Blade and
Install the Cutting Attachment . . . . . . 10
E. Removing the Cutting Attachment
and Installing the Cutting Blade . . . . . 11
IV. Oil and Fuel Information . . . . . . . . . . . . . 13
V.
Starting/Stopping Instructions . . . . . . . . 14
VI. Operating Instructions . . . . . . . . . . . 15-17
A. Operating Click-Link System . . . . . . . 15
B. Adjusting Trimming Line Length . . . . . 16
C. Decorative Trimming . . . . . . . . . . . . . 16
D. Edging . . . . . . . . . . . . . . . . . . . . . . . . 16
E. Using the Cutting Blade . . . . . . . . . . . 16
VII. Maintenance and Repair Instructions .17-23
A. Maintenance Schedule . . . . . . . . . . . 17
B. Line Installation . . . . . . . . . . . . . . . . . .18
C. Installing a Prewound Reel . . . . . . . . . 19
D. Air Filter Maintenance . . . . . . . . . . . . 20
E. Carburetor Adjustment . . . . . . . . . . . 21
F. Checking the Oil Level . . . . . . . . . . . . 21
G. Changing the Oil . . . . . . . . . . . . . . . . 22
H. Checking/Adjusting Valve to
Rocker Arm Clearance . . . . . . . . . . . . 22
I. Replacing the Spark Plug . . . . . . . . . 23
VIII. Cleaning and Storage . . . . . . . . . . . . . . .24
A. Accessories/Replacement Parts . . . . 24
IX. Troubleshooting Chart . . . . . . . . . . . . . . 25
X.
Specifications . . . . . . . . . . . . . . . . . . . . 26
XI. Warranty . . . . . . . . . . . . . . . . . . . . . . 27-28
CONTENTS OF CARTON
This unit should consist of the following:
•
Model 1090r with J-Handle and
4-Tooth Cutting Blade with Cover
•
String Guard and Hardware
•
Bump Head™ String Cutting Attachment
•
Shoulder Harness
•
Locking Rod
•
3.4 oz. Bottle of 4-Cycle Oil (SAE 30)
•
Operator's Manual and Parts Manual
•
Product Registration Card
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
and
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.
THIS PRODUCT IS COVERED BY ONE OR
MORE OF THE US PATENTS LISTED BELOW:
5,241,932; 5,176,116; 4,779,405; 4,651,422;
4,589,742; 4,505,040; 4,463,498; 4,356,605;
4,342,235; 4,223,441; 4,369,742; 5,267,536;
5,243,937; 5,263,454; 5,293,847; 5,558,057;
5,421,292; 5,463,809; 5,564,374; 5,738,062;
Des. 355,198;
OTHER PATENTS PENDING.
Make sure this manual is carefully read and
understood before starting or operating this
equipment.
