Operator’s Manual
Electric Start Capable
4-Cycle Gas Trimmer
TB525 EC
TABLE OF CONTENTS
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Starting and Stopping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Maintenance and Repair Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Optional Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
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© 2011 MTD SOUTHWEST INC, All Rights Reserved.
DO NOT RETURN THIS UNIT TO THE RETAILER. PROOF OF PURCHASE
WILL BE REQUIRED FOR WARRANTY SERVICE.
For assistance regarding the assembly, controls, operation or maintenance of
the unit, please call the Customer Support Department at 1-800-828-5500 in
the United States or 1-800-668-1238 in Canada. Additional information about
the unit can be found on our website at www.troybilt.com or www.troybilt.ca.
For service, please call the Customer Support Department to obtain a list of
authorized service dealers near you. Service on this unit, both within and after
the warranty period, should only be performed by an authorized and approved
service dealer. When servicing, use only identical replacement parts.
769-07280 P00 10/11
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SERVICE INFORMATION