Earl,
The American Society of Agricultural Engineers (ASAE) has published a standard to be used when designing these hitches. A copy will cost you $28 but will provide all the specifications to make your hitch project a success.Ask for standard: Category 'O' Three-Point Free-Link Attachment for Hitching Implements to Lawn and Garden Ride-On Tractors ASAE S320.1 December 1999 Contact information to order this is: ASAE Order Department E-mail: martin@asae.org
2950 Niles Road
St. Joseph, MI 49085-9659 USA Phone: 616-429-0300 Fax: 616-429-3852
(8 am to 5 pm Eastern Time Zone)
After hours leave voice mail message. I have ordered from them in the past and have gotten great service. Other useful standards are: One-Point Tubular Sleeve Attachment for Hitching Implements to Lawn and Garden Ride-On Tractors ANSI/ASAE *S348.2 December 1995 Agricultural Wheeled Tractors--Front-Mounted Linkage ASAE *S513 December 1999 2000-RPM Power Take-Off for Lawn and Garden Ride-On Tractors ANSI/ASAE S370.3 February 1996 2000-RPM Front and Mid PTO for Lawn and Garden Ride-on Tractors ASAE S431 December 1999 Application of Remote Linear Control Devices to Lawn and Garden Ride-on Tractor Attachments and Implements ANSI/ASAE S377 December 1995 Good Luck,
Ron H.
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