Operator’s
Manual
4-Cycle Gas Commercial Trimmer
ST425
PART NO. 769-04614 P00 (1/09)
TABLE OF CONTENTS
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Maintenance & Repair Instructions . . . . . . . . . . . . . . . . . . . . . . . . .5
Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
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© 2009 MTD SOUTHWEST INC, All Rights Reserved.
SAVE THESE INSTRUCTIONS
For service call 1-877-282-8684, or 1-800-668-1238 in Canada to obtain
a list of authorized service dealers near you. For more details about your
unit, visit our website at www.cubcadet.com or www.cubcadet.ca.
If you have difficulty assembling this product or have any questions
regarding the controls, operation or maintenance of this unit, please
call the Customer Support Department.
DO NOT RETURN THE UNIT TO THE RETAILER. PROOF OF
PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE.
THIS PRODUCT IS COVERED BY ONE OR MORE U.S. PATENTS.
OTHER PATENTS PENDING.
Service on this unit both within and after the warranty period should
be performed only by an authorized and approved service dealer.
Copy the serial number here:
Copy the model and parent part number here:
Before beginning, locate the unit’s model plate. It lists the model and
serial numbers of your unit. Refer to the sample plate below and copy
the information for future reference.
SPARK ARRESTOR NOTE
NOTE: For users on U.S. Forest Land and in the states of California,
Maine, Oregon and Washington. All U.S. Forest Land and the state of
California (Public Resources Codes 4442 and 4443), Oregon and
Washington require, by law that certain internal combustion engines
operated on forest brush and/or grass-covered areas be equipped with a
spark arrestor, maintained in effective working order, or the engine be
constructed, equipped and maintained for the prevention of fire. Check
with your state or local authorities for regulations pertaining to these
requirements. Failure to follow these requirements could subject you to
liability or a fine. This unit is factory equipped with a spark arrestor. If
it requires replacement, ask your LOCAL SERVICE DEALER to install the
Accessory Part #753-06080 Muffler Assembly.
CALIFORNIA PROPOSITION 65
WARNING
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS
CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE
CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
In an effort to reduce the impact on the forests, and
reduce carbon and greenhouse gas emissions, MTD
is using less paper by reducing the text size of this
manual.
To Next Page
General
