Can't be any air. Wouldn't pumping both ways eject any air?
Yes jmc it's an EZ-Dump. I like it a lot. It's the same width as my truck, easy to reverse it straight in the mirrors. I bet it's 30 years old. I got it on craigslist. It's been great, I've worn out/replaced 2 good tires since. I cannot believe how much work this trailer has done.
I thought $4500 was a lot for a used trailer 20+ years old when new ones were costing $6000 & nice tractors could be had for $10k. But it's been a great $4500 purchase. I never could have got the work done renting. It's arguably worth more than $4500 today - which is no help cuz I can't do without it.
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oldnslo here's pics of the pump.
There's a little box with a wire on the left side.
On the right jammed up against the battery is a hex-shaped item.
I don't see any other components or what might look like a check-valve.
The two hoses leave the pump and go directly to the cylinder ends.
My knowledge of hydraulics is simple and basic.....
I can't imagine what a check valve would do in a system that pumps both ways.
Doesn't the pump motor simply turn the direction you want the fluid to go?
Anyway if you can help me stop it from bouncing I will be happy.
It seems like it might pop a hose or wear out the pump or something bad will happen from the violent motion.
