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Adding hydraulics to dump trailer
Ken,
Hoses premade sure do cost less than same hose made at local shops. Of course there are more options with those made in the local shops as they can install an end not normally used and odd lengths. Might save a fitting for you.
You may find the metal you want for the floor at a heating and air conditioning shop. A guage with gal. coating should work fine.
Oneance,
A hose one inch short is a real heart break and can be costly. As you pointed out, those turns and curves add up.
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Adding hydraulics to dump trailer
Ken,
You can use the teflon tape and need to on pipe threads as the threads do the sealing. Be sure not to let the tape extend over the end of the fitting and there should be none getting into the system.
On the fittings with the machined ends that do the sealing you should not use the tape on those as the threads do not do the sealing, rather machined surface on machined surface.
Often the ports on cyls are pipe threads and you will need tape on those fittings but not the hoses to fittings.
Has been a few years since I worked in manf. plant that used anywhere from a dozen to two hyd cyls per machine we used a lot of teflon tape. (we used a lot of everything)
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Adding hydraulics to dump trailer
Ken,
The fittings on the end of the hoses probably are not pipe threads. But they could be. A pipe thread normally does not have the machined beveled end as it does not match to a fitting.
I am sure you know to break the pressure before you try to diconnect a cyl from the remote hyds. Will you want to leave the trailer tilted up when you unhook so water would drain? If so have you taken that into consideration?
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Adding hydraulics to dump trailer
There are hyd cyls with valves to hold the load if the pressure is removed. If the cyls were installed by a factory that possibly/probably is the type of cyl you have. Of the cyls I have seen built this way the valve body shows up the outside of the cyl barrel. There may be another design with them internally but I would doubt it. It might be an OSHA or such regulation cyls on load lifting is to be of this type. There is the only use I have seen of them.
IF you buy the normal hyd cyl from a tractor supply business it does not have that valve.
Be warned, those valves can and do fail and what held last time may not this time. There have been many injuries and deaths from people trusting a hyd cyl to hold a load.
As to holding the bed up for water to drain, you might find just a block of wood between the body and the frame sufficient.
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Adding hydraulics to dump trailer
DRankin,
Your trailer has it own self contain hyd system if I read you last post correctly.
If correct, that is different then using the hyd on the tractor to power the cyl as when you disconnet the trailer from the tractor the system is open and will allow the hyd oil to flow, and the cyl drop. Ken is planning on connecting to his tractor to power the cyl and thus using the tractor's valve to hold the cyl which of course is not there when he disconnects.
If you are able to disconnect from remote hyd connection with a loaded cyl, normally you end up wet with hyd oil spraying and cyl coming down depending on the load on it as to speed.
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Adding hydraulics to dump trailer
ew,
You are so much fun. Maybe you are correct and then you may be wet! I learned a long time ago to be safe and DRY so I cut off my engine and break the hyd pressure before I disconnect my remotes.
On my tractor the remotes are hard to disconnect or connect if the system does not have the pressure released. I have no doubt with a load on the hyd cylinder you might as well close your eyes and mouth for you will get sprayed as even a good SLICK NORTHERNER (wet with hyd oil) is not near as fast as pressurized oil is.
If you are able to do so on your beloved blue toy good for you. Let me know the day just a tiny bit of trash holds the valve open. So I can be ROF
Very serious, it is not my suggestion to never disconnect with a load on the hyd cyl. Failure in any part of that system can DROP a load with no warning and no way to raise it. Always use a mechanical lock or blocking before you (or any part of you) ever get under any load supported by a extend hyd or air cylinder. They can fail with NO notice. If earthwrks is correct and you have the pressure being held by a fitting on the end of hyd hose you have the fitting, hose and cyl each can fail. If the fitting is the pioneer type the ball just getting bumped can provide that release.
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Adding hydraulics to dump trailer
Ken,
Your 4 inch cyl, didn't you recently buy a log splitter? Can you not exchange it for or towards the smaller cyl?
Is the cyl used on dump trucks one way and not powered down? Esp on dump trucks I can see where that could be a problem with the way the load does not clear the bed when dumped.
If the damage done by powering down is if the body or bed is not in alignment, can that vary with the trailer flexing due to ground?
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Adding hydraulics to dump trailer
Ball hitch giving more movement than pin, do you mean pivot action such as tractor on one plane and trailer on another? Or going over hill or through ditch or such?
One other point the ball probably will give some advantage is less up and down free movement when dumping.
Ken, good for you to figure out the problem on the mount. No doubt you will enjoy your trailer.
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