Hydraulic pump for dump trailer?

[Anonymous-0]

Have a cut down 1 ton truck with a twin post hoist under an 8' X 8' steel bed. The PTO driven pump, resovior, and all the plumbing is still in place. I'd like to drive the pump with "something" so it could be used on different tractors without mixing the different hydraulic fluids. What RPM does a truck PTO turn, and what direction as you look forward at the back of the transmission? I've wondered about sprocketing a starter motor to the pump, but I don't know if it would be powerful enough without gearing it real low. I wonder how many HP it takes to run one of those PTO pumps. Kinda leaning toward electric drive so we could also use it behind my son's 1 ton truck. Is this a hair brained idea? A lot of my ideas are. . .

Thanks,
Paul

 

[ericlb]

my 1 ton chevy has a electric over hydraulic dump on it it has a 8 x 12 foot flatbed and will still lift 3 cubic yards of gravel, it uses a starter motor to power the hoist pump, but its enclosed so i dont have any idea what rpm it has it will lift to the fully raised position in about a minute so one should work for you but you'll have to figure out how to hook it to the pump, but a small gas upright engine may be easier to rig up to drive the pump, im not sure what to use to mesh with the starter to get enough rpm , usind a engine flywheel might take forever to raise

 

[504-2]

A Hyd power pack is just a 12v. moter bolted to a hyd pump. I would try a one to one chain drive and use welding cable to the battery. If you only wanted to wire one truck make up a long set of jumper cables and wire the switch through a starter relay.

 

[edj856]

There is no set speed for a truck PTO. They are ordered to provide the proper speed for the device you are driving. You would have to find out the rated speed of the hydraulic pump.

If I remember right, you need 1 HP per GPM for a hydraulic pump. If this is going to be pulled behind a tractor, but you want it self contained, maybe a 5 hp horizontal shaft engine would be better.

 

[thurlow]

The starter (motor) will work; just have to figure direction of travel and gearing. We had a Howle (400 bu) gooseneck grain trailer back in the '80s with the motor/pump as one unit. I built another one for a bob-truck using a (12V) starter/love-joy coupling/hydraulic pump off of an old Gleaner combine. It would only dump about 200 bu. By using a chain and different gear ratios, I'm sure it would have dumped 300 bu or more...........

 

[greygoat]

A friend once made a dump trailer from an old
truck, and was puzzled that a 5 HP gas engine
would stall when he tried to lift it. My answer:
"How much horsepower did that truck engine have?"

 

[caterpillar guy]

It could be run by PTO if you had one on the pickup. We used to run one with a hydrualic motor for a elevator/conveyor for our bagger so we could pull it for hauling manure when it was wet in the spring just hooked it to the end of the PTO shaft and removed the drive shaft for the tractor that was 9' 7' 3'deep. They don't run all that hard. our H now runs it up at an idle with dirt on.