I need some help. I have a roll off trailer with an electric dump that has a really hard time pushing the bin up. I literally need to get the bin back far enough so i can tilt the bin and dump the load.

I wanna convert the electric system to a gas driven hydraulic. any suggestions? anyone know of a place where i can get a self contained system? ive been looking at log spiltter systems because of the presuure the can push and they are basically close enough to what i need. thanks in advance!!

Try the list's from a Google search for:
hydraulic trailer dump+gas powered+kits

This is a common misconception. A larger pump, or one being gas powered, will not make your system any "stronger." That has to do with the size of your actuators, i.e., cylinders and motors. If you want to lift more, get larger cylinders, although with your given electric power unit, it will run a little slower (because larger cylinders have more volume to fill).

quote:

Originally posted by Josh Cosford:
This is a common misconception. A larger pump, or one being gas powered, will not make your system any "stronger." That has to do with the size of your actuators, i.e., cylinders and motors. If you want to lift more, get larger cylinders, although with your given electric power unit, it will run a little slower (because larger cylinders have more volume to fill).

This pic of my trailer is inaccurate. the chylinders are mounted in the other direction and are very big. should i move the cylinder in the opposite direction?

Is this a custom built trailer or an OEM unit? Cylinder's mounted horizontally in the rest position require a very large amount of force to overcome their geometrical disadvantage.

You have three options. Change the lift geometry by changing the effort distance or angle. Install larger cylinders. Increase system pressure.

quote:

Originally posted by Josh Cosford:
Is this a custom built trailer or an OEM unit? Cylinder's mounted horizontally in the rest position require a very large amount of force to overcome their geometrical disadvantage.

You have three options. Change the lift geometry by changing the effort distance or angle. Install larger cylinders. Increase system pressure.

whats the best way to increase system pressure?

That may or may not be an option. There will be a relief valve on the powerpack, but it's probably already adjusted so the system is operating at a safe pressure. If you put a gauge on your working port then dead end the cylinder, you can see what it's set at, and if there's enough room to play with.

Raising PRESSURE will not be safe if the unit, the flow lines, mechanism and/or the cylinder are not rated for the HIGHER PRESSURE.
In my pre-Fluid Power days I raised the pressure on a 40 GPM Vickers Vane Pump and suddenly brought a 50 HP Electric Motor to a very Hard Stop. Fortuanateley nothing blew up or broke. Also, I never tried that method of Trouble Shooting again.

how do i adjust the pressure on the unit?

Most circuits have a Relief Valve and most, not all, when turned CW increase pressure, CCW reduces pressure.

If the system has a Pressure Compensated pump it will have an adjustment that operates similar to the Relief Valve. Pressure Compensated pump circuits often have a Relief Valve also that must be adjusted at the same time.

I have witnessed both of these adjustments to be incapable of raising pressure when there is wear or damage to their internal parts. Usually when the units are faulty you can lower pressure though.