What to do with a new hydraulic pump on a backhoe?
What to do with a new hydraulic pump on a backhoe?
When installing new pump, fill the pump housing with oil in the top hole before putting the fitting in to provide lubrication until trans pump gets oil to it. You have good advice from jd110 but I’m curious have you cut open the old filters and see what is in the elements.
How big is the hydraulic screen on a backhoe?
Then I pulled out the cylindrical pre-filter screen that is about 1.5 inches in diameter and 8 to 10 inches long that is inside the main fluid reservoir where a short rubber hose connects the reservoir to the main hydraulic filter assembly. The screen was not damaged and it was clean. I reassembled it.
Why did my backhoe stop when my loader stopped working?
There were no signs of any problems at all when the loader stopped working and the backhoe got weak (no jerking or anything else). It was like flipping a switch, now they work, now they don’t. There was no screen in the port on the pump where the shavings were.
When installing new pump, fill the pump housing with oil in the top hole before putting the fitting in to provide lubrication until trans pump gets oil to it. You have good advice from jd110 but I’m curious have you cut open the old filters and see what is in the elements.
Why does my John Deere 410 never go above idle?
New filters, new lift pump, new suction line from tank to lift pump, and even new injectors. I put a kit in the injector pump and once I bled the air from the system it ran like new. About a week later I went out to use it again and the engine would never go above idle.
Is the injection pump on a John Deere 410C?
That looks like a ’78ish 410, definitely not a 410C. I would start with the return fitting on the injection pump. Take the whole fitting off and inspect it for plugging.
There were no signs of any problems at all when the loader stopped working and the backhoe got weak (no jerking or anything else). It was like flipping a switch, now they work, now they don’t. There was no screen in the port on the pump where the shavings were.
New filters, new lift pump, new suction line from tank to lift pump, and even new injectors. I put a kit in the injector pump and once I bled the air from the system it ran like new. About a week later I went out to use it again and the engine would never go above idle.
That looks like a ’78ish 410, definitely not a 410C. I would start with the return fitting on the injection pump. Take the whole fitting off and inspect it for plugging.
What does jerky oil flow on backhoe mean?
If jerky, that is a sign of low oil flow and cavitation. If transmission pump flow is good, then I would remove the pressure control valve (priority valve) to see if any of the metal shavings are trapped there.
