POWER OF ATTORNEY



KNOW ALL MEN BY THESE PRESENTS that Hector R. Ortino does hereby make,

constitute and appoint Thomas A. Piraino, Jr., Thomas L. Meyer, Aarti Patel Amin

and Rhoda Minichillo as my true and lawful attorneys-in-fact with full power

and authority to act in my name and on my behalf in the execution and filing

of any Form 3, Form 4 or Form 5 required to be filed with the Securities and

Exchange Commission (the "Commission") pursuant to Section 16 of the

Securities Exchange Act of 1934 (the "Act"), in connection with my status

as a Director of Parker-Hannifin Corporation, hereby ratifying

and confirming all that said attorneys shall lawfully do or cause to be done

by virtue of this document.  I hereby revoke any and all Powers of Attorney

relating to the execution and filing of Forms 3, 4 and 5 on my behalf as a

Director of Parker-Hannifin Corporation previously filed with the Commission.

This Power of Attorney shall remain in effect until such time as the

Commission shall receive from me a written communication terminating the

authority granted hereunder.



Dated this 12th day of August, 2004.





/s/ Hector R. Ortino

Hector R. Ortino