Connection and Accessory Locations for Towing Multiple Trailers--Truck and Bus
This SAE Recommended Practice establishes the recommended locations for the air brake and electrical connections for towing multiple trailers. It applies to all commercial trailers except drop frame and car haul types.
Rationale: As part of the periodic review this document has been modified to conform to the new J Document Format. The
references section was updated to reflect the title change of SAE J560 and to identify ANSI as the source for ISO
Also known as: SAE J 849
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