here is all i could find:
"By 1961, Wabco entered the market of elevating scrapers by selling models manufactured by Hancock Manufacturing Co. The company promoted elevating scrapers through the following decade. By 1977, the Model 353FT was introduced. With a capacity of 36 cubic yards (28 m3), and a combined horsepower of 1,025 from two engines, this was the most powerful elevating scraper ever made.[2] This type of scraper, however, would eventually lose popularity, as it was not an efficient or cost-effective means of moving materials; contractors preferred to use a fleet of standard scrapers. Wabco sold its last scraper in 1980."
Just do a google search on the model of scraper you are looking to purchase.
It probably came attached to a John Deere 840. It was used by Deere for the first few years until they designed their own. However, if it was, it will not have a front truck.
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These may be of help.
HANCOCK Pull Scrapers
http://www.machinerytrader.com/listingsdetail/detail.aspx?OHID=7586961&
http://images.search.yahoo.com/search/images;_ylt=A0oG7lbPSLpPxS4Ab.5XNyoA?p=hancock+pull+type+scrapers&fr=yfp-t-701-s&fr2=piv-web
http://www.fastline.com/v100/Hancock-BILL-PIGG-TRACTOR-QUITAQUE-TX-equipment-detail-23ff7cbf-90a1-44b9-be82-e5ae8aa0cd81.aspx
http://bakersfield.craigslist.org/grd/2980870611.html
http://www.gordyflemingequipment.com/scrapers.htm
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I even have this catalog for sale on E-Bay !
http://www.ebay.nl/itm/280884485009?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649
Hi HoltSteamer
I farmed in Willcox, AZ. We had a Johnson pto self loading can much the same as what your are looking at. We had a John Deere 4640 @ about 175 hp. We moved a lot of tail water silt back up the hill ever year, also used it to do road work. They are very handle to have on a small job site.
Go luck
Ernieintucson
Thanks for the info, I am hoping to get over there tomorrow to look at, but don't know for sure. I will keep you all posted if it comes home or not. I think it would be neat to pull it behind a cat, seeing the cat and can setups is neat but something like this would be different and unique.
-Robert
Robert (holtstemer)
Try and find a model and SN number if you can. Hancock made six different pull self-loading scrapers back in the day. One even had a rear engine to run the paddles, the sliding bowl pan and the end gate ejector.
Kelly