640C-Tuffy Manuals


Operator’s Manual
Rear-tine Tiller Models 
640C — Tuffy® CRT
644A — Super BroncoTM CRT
Model 644A Shown
IMPORTANT: Read safety rules and instructions carefully before operating equipment.
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brush-
covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if 
any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required 
by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark 
arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 
Cleveland, Ohio 44136-0019.
Troy-Bilt LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
PRINTED IN U.S.A.
FORM NO.
769-00585C OM.fm
9/15/04

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