rustyshakelford
Veteran Member
I don't know what your talking about. Only that the tools operate at 10,500 psi. It's a bunch and precautions are taken to protect the hoses in the event of a failure....which would be real bad
Brett
Will a Hydraulic pump pump water ?
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I don't know what your talking about. Only that the tools operate at 10,500 psi. It's a bunch and precautions are taken to protect the hoses in the event of a failure....which would be real bad
Brett
CalG
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Brett
Please read the original post. It will give you insight to the topic.
There are no 10ksi systems mentioned here.
In fact, a typical tractor or wood splitter will never see over 3ksi. There are pressure relief valves to limit ultimate pressure.
What are talking about? extremes perhaps...
Redneck in training
Elite Member
I have a friend who used to be a mechnaic on a merchant ship. He told me that when the weather is bad and you lose all oil in the engine you put water in it to keep running.
aczlan
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A system like the jaws of life was mentioned and those do run at 10k psi.
Aaron Z
rustyshakelford
Veteran Member
Apparently I misread the initial post. I was under the assumption that the OP was asking if they could operate on water. I have since been corrected.
Brett
N2DFire
Platinum Member
Warning - thread Hijack in progress.
Hey Brett,
I would get the specifics of that claim in writing.
I was told something similar by the Holmatro dealer years and years ago but his take was that the pickup tube on the Power Units did not go all the way to the bottom of the reservoir (and Holmatro runs on Mineral Oil) so in a pinch we could add water to the PU and float the Mineral Oil up to the pick-up tube. I don't think he was ever advocating actually letting water enter the system.
(Side Note - Hurst uses Phosphate Ester based fluid, not sure what TNT runs but I will be soon after we get some of the new battery hydraulic ones)
While I would never spare any piece of equipment over a persons life & I agree that when life safety is on the line the philosophy of "It will work till it don't" is acceptable risk - you need to be aware of who's going to be on the hook for the destruction of several thousand dollars of extrication equipment.
One of the first things you're taught is "Always have a Plan B", the next thing is "When Plan B becomes Plan A, think up a new Plan B".
I wouldn't take that trick out of my toolbox but I would move it very very far down the list and I would be very sure I understood all the ramifications of that action.
Like I tell the cadets in our academy - I'm not fussin, I'm not preachin, we're just talkin and you have to decide for yourself.
Be safe Brother.
Hey Brett,
I would get the specifics of that claim in writing.
I was told something similar by the Holmatro dealer years and years ago but his take was that the pickup tube on the Power Units did not go all the way to the bottom of the reservoir (and Holmatro runs on Mineral Oil) so in a pinch we could add water to the PU and float the Mineral Oil up to the pick-up tube. I don't think he was ever advocating actually letting water enter the system.
(Side Note - Hurst uses Phosphate Ester based fluid, not sure what TNT runs but I will be soon after we get some of the new battery hydraulic ones)
While I would never spare any piece of equipment over a persons life & I agree that when life safety is on the line the philosophy of "It will work till it don't" is acceptable risk - you need to be aware of who's going to be on the hook for the destruction of several thousand dollars of extrication equipment.
One of the first things you're taught is "Always have a Plan B", the next thing is "When Plan B becomes Plan A, think up a new Plan B".
I wouldn't take that trick out of my toolbox but I would move it very very far down the list and I would be very sure I understood all the ramifications of that action.
Like I tell the cadets in our academy - I'm not fussin, I'm not preachin, we're just talkin and you have to decide for yourself.
Be safe Brother.
currierej
Bronze Member
In WWII there were cases of aircrew peeing in the hydraulic system to get the landing gear down, it will work in an emergency, and only until your mechanic gets his hands on you.
rustyshakelford
Veteran Member
That's some great info. Makes since that the oil would rise above the water added. The way the tech said it, mind you this was 13 years ago was that in a bind it'll run on water. I never asked for more info, just assumed he was boasting his product. He also gets the big money to repair or replace the damage though. At my full time job we run holmotro and always have atleast one extra set of tools coming. As for the one making the call to add water in a bind or anything else that's out of the norm, it falls on me. I get to be in charge of the daycare. Like you said, there's nothing on the truck that I wouldn't risk for a life, just have to be able to justify it and be accountable.
Whip these cadets into shape. My friends that are instructors are telling me there is a class for them about teaching millenials.
Brett
N2DFire
Platinum Member
We're a combination system with Paid & Volunteer - our last academy had everything from 16 to 65 and finding ways to convey the same information to fit everyone's learning style gets to be interesting. I might have to track down some of those classes. LOL
Stay Safe Brother.
rd_macgregor
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I always wondered just the opposite, namely, whether a pressure washer could be converted into a gas-powered hydraulic pump...
