Thank you.


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Posted by David Sherman [24.32.202.83] on Sunday, February 21, 2010 at 15:53:27 :

In Reply to: Re: OT. How much power do hydraulics really take? posted by Franz© [4.156.234.224] on Sunday, February 21, 2010 at 14:12:46 :

That's just the kind of rule-of-thumb info I was hoping for. 20 hp is more than the cheap 1-cylinder motors will put out, so that would be beyond what this project is worth. On the other hand, with what little I know of hydraulics, it seems to me that any pump would put out sufficient pressure, but the flow rate would be low if there wasn't enough HP behind it, which just means the bucket would move more slowly. That might be okay for me.

I'm glad to know some of the designers of these trucks thought about having a pony motor to save fuel and wear on the truck engine. Coupling it to a generator makes perfect sense. My truck was clearly designed so a lineman could connect himself safely to high voltage, since it has a large fiberglass section in the boom, non-metallic hoses (pure plastic with no wire embedded in the hose) and dielectric-rated hydraulic fluid. But since I'll never use it for that, I could run wires up the boom to the bucket to remote-start either the truck engine or a pony motor, and to provide 110 to the bucket for running tools. Not sure how elaborate I want to get with this, but at some point I will use it for cleaning and repainting the cornices around the roofs of both of my buildings (about 30' above the ground) and will need power up there to run tools anyway. I like the rapelling strap idea. I will ask my friend who's in the mountain search & rescue what would be a minimum setup for getting safely down out of the bucket.



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