Nova Scotia | jimmycpet - 12/28/2013 15:34
Hi there ,has anyone out there converted a highway dump trailer to be pulled behind a farm tractor , I'm guessing I need a Joe dog converter dolly , and a pto pump to provide enough hydraulic fluid to lift the dump , the dump is the lead pup off a trains unit about 20ft long , anyone attempt this?
thanx in advance for any comments , also how much did this cost for pump / converter dolly , will I need a single or tandem dolly
appreciate any input
i run three now , all set up on air with air supply by tractor ( we ordered tractors with this option as we replaced fleet) but when i geared up first trailer we ran it on 7820 JD with no brakes , put 20 ton loads on it, you had to mind your stops , but got along fine, we just backed off brakes so it free rolled.
dolly , we find old single axle trucks , cut them off behind cab , you want at least 15 ft of frame, use large steel tube for reach pole , the proper tounge weight is important so that you have enough weight on rear tires of tractor so they stop you , not slide and be pushed , yet not to much so that you feel that the front of the tractor is light for steering. the first one i built i put a sliding fifth wheel on so i could fine tune where i wanted it , i have found that you want the king pin of the trailer to be 28 inch's in front of the center of the axle, this will give you roughly 3 ton on drawbar and 7 ton on single axle, ( assuming 20 ton load) with other half of load on rear axles
there is not enough oil in tractor to put hoist up , maybe short 21 ft dumper but not anything over 25 ft, my first one i made thing to go on 3pt to hold old truck pump and valve but found that having 3 lines from trailer to run hoist was a mess with the double turning pivot of the dolly, ( hydro resivor has to be mounted on the trailer somewhere) so on the next 3 trailers i have setup i took an 8 inch by 8 inch steel tube 1 ft long , put a 30 hp hydro motor on one side turning a universal truck pump valve combo on the other side , ( made little power pack) which i mounted on trailer by the hydro resivior , now all i have is 2 nice small hydro lines to run hydro motor , ( normal tractor hydro lines) this is much cleaner, you put the tractor in continious flow then get out and run valve to unload grain .
i can take a bunch of pics tomorrow if you would like , to give you some idea's , just let me know. |
highway dump trailer convert to use farm tractor to pull grain
