bcarwell
Gold Member
I just bought a big old PTO winch made by the Silent Hoist & Crane Company, S/N 7958 (no apparent model number). See picture #1
I am using it to pull a 4x8 trailer up and down a 40 degree incline cliff about 80 feet. Trailer weighs maybe 400 pounds total when loaded with tools, quickrete, etc.
which I am pulling up and down the cliff to and from a river bank
I have several questions about how to use and power it. I had intended to use my tractor PTO but also would like to consider an electric motor drive.
Questions are:
1) Any guess what the gear ratio might be ? I think they were used on wreckers to move cars around in a dumpyard.
2) What are the two ports in the gear casing for on one side in picture #2 ? They are holes about 3/4 inch in diameter and have seals but are open now. I'm guessing it was to
circulate gear oil into and out of the gearbox for cooling but not sure. But if so why are the similar ones on the other side of the winch sealed up ? And for my application wouldn't
I just seal them up ? My duty cycle is way low: one trip up the hill 80 feet, then stop for 10 minutes to load/unload. Rinse, wash, repeat.
3) For the above indicated 400 pound load rolling up the hill, what horsepower electric motor would you guess would be required to drive the thing up and down the
hillside ? Any additional gearing needed or just direct chain drive from motor to winch gear ?
4) If I used my tractor PTO how would you hook it up to the gears in picture #3 ?
5) Why are their two drive gears separated by about an inch by a smooth cyliindrical surface ? Almost looks like the smooth surface was for an optional
belt drive with the belt between the two gears. Are you supposed to use BOTH gears with ONE chain spanning them and if so where do you get a chain that wide
that spans the 1 inch gap to engage both gears ? For my 400 pound max load couldn't I use just one of the gears and a smaller width chain ?
6) How would you rig it so it could go in both directions to pull the load up and down the hill ? My PTO only goes in one direction.
7) Ditto if I used an electric motor. A reversible one ? What HP ? And I would assume starting torque would not be sufficient so would I need a clutch of some sort ?
If so what kind and where can I find one ?
8) There appears to be a band brake. Would I need to refurb and use it presumably when reversing direction and lowering a load down the hill ?
I am using it to pull a 4x8 trailer up and down a 40 degree incline cliff about 80 feet. Trailer weighs maybe 400 pounds total when loaded with tools, quickrete, etc.
which I am pulling up and down the cliff to and from a river bank
I have several questions about how to use and power it. I had intended to use my tractor PTO but also would like to consider an electric motor drive.
Questions are:
1) Any guess what the gear ratio might be ? I think they were used on wreckers to move cars around in a dumpyard.
2) What are the two ports in the gear casing for on one side in picture #2 ? They are holes about 3/4 inch in diameter and have seals but are open now. I'm guessing it was to
circulate gear oil into and out of the gearbox for cooling but not sure. But if so why are the similar ones on the other side of the winch sealed up ? And for my application wouldn't
I just seal them up ? My duty cycle is way low: one trip up the hill 80 feet, then stop for 10 minutes to load/unload. Rinse, wash, repeat.
3) For the above indicated 400 pound load rolling up the hill, what horsepower electric motor would you guess would be required to drive the thing up and down the
hillside ? Any additional gearing needed or just direct chain drive from motor to winch gear ?
4) If I used my tractor PTO how would you hook it up to the gears in picture #3 ?
5) Why are their two drive gears separated by about an inch by a smooth cyliindrical surface ? Almost looks like the smooth surface was for an optional
belt drive with the belt between the two gears. Are you supposed to use BOTH gears with ONE chain spanning them and if so where do you get a chain that wide
that spans the 1 inch gap to engage both gears ? For my 400 pound max load couldn't I use just one of the gears and a smaller width chain ?
6) How would you rig it so it could go in both directions to pull the load up and down the hill ? My PTO only goes in one direction.
7) Ditto if I used an electric motor. A reversible one ? What HP ? And I would assume starting torque would not be sufficient so would I need a clutch of some sort ?
If so what kind and where can I find one ?
8) There appears to be a band brake. Would I need to refurb and use it presumably when reversing direction and lowering a load down the hill ?