St. Clair County Farm Museum
"DOUBLE TREE" TRACTOR PULLS
The drivers of a John Deere "D" and a John Deere 3020 test their teamwork skills on the "Double Tree" hitch.
Home
Harvest Days
Sawmill
Threshing
Steam Engines
Days of Yesteryear
Note how the drivers have to watch each other and the hitch.  A lack of attention can mean the two tractors hitting each other.  Head gestures and hand signals are the only way to communicate over the "music" of the laboring tractor engines.
While many have seen regular tractor pulling, "Double Tree" tractor pulling is not very common.  It involves hooking two tractors to a single beam that is then attached via a chain or cable to a single attachment point on the weight transfer sled.  This hitch set up is similar to the way a team of horses are hitched to a wagon or other equipment with eveners in a double tree fashion.  In this case, each pair of drivers and tractors must work as a team.  The goal is to see which team can pull the sled the farthest.  The pairing of tractors is done by luck of the draw from tractors in the same weight class but not necessarily the same horsepower.  That's what makes this type of pulling even more interesting.  As the tractors reach the end of their ability to move the sled, the drivers must stop their tractors at the same time.  If one delays clutching in the least while his partner clutches, he continues forward sending his partner briskly rearward!  Proper coordination is critical!
Tractor Pulls
Hosted by www.Geocities.ws

1