ASABE To Revise ISO Power Take-Off Standards

The American Society of Agricultural and Biological Engineers (ASABE) initiated two projects to nationally adopt two recently revised international standards:

ISO 500-1:2014, Agricultural tractors—Rear-mounted power take-off types 1, 2, 3 and 4—Part 1: General specifications, safety requirements, dimensions for master shield and clearance zone

ISO 500-3:2014, Agricultural tractors—Rear-mounted power take-off types 1, 2, 3 and 4—Part 3: Main PTO dimensions and spline dimensions, location of PTO.

ISO revised the standards to include type 4 power take-offs. Once adopted by ASABE, the two standards will replace two corresponding documents that ASABE adopted in 2011: ANSI/ASABE AD500-1:2004 and ASABE/ISO 500-3:2004.

Conformance to ASABE standards is voluntary, except where required by state, provincial, or other governmental requirements, and the documents are developed by consensus in accordance with procedures approved by the American National Standards Institute.

For information on this or any other ASABE standard, contact Scott Cedarquist at 269-932-7031, cedarq@asabe.org. A current listing of all ASABE standards projects can be found on the ASABE web site at asabe.org/projects. S