1925  One hay-wire sawmill, Nice location, Ten mile haul To shipping station.
1942  HAYWIRE. An allusion to the farm practice of repairing machinery with the light wire used to bale hay and straw. Any piece of equipment not up to the peak of operation efficiency is haywire to a logger.
1960  Neither does it [gyppo] denote shoddy equipment. There's another name for that--the haywire outfit.