Recent content by MartinmMc

TBH, I'm assuming the new pump is creating pressure & the issue is something else, what's the chances of a new pump not working, giving the same symptoms of no pressure as previous, hence me looking at the distribution block/relief valve. I suppose I should confirm pressure at the pump, as my...

That's why I'm asking you tbh. I'm looking at the relief valve at the moment, it's the B type. The valve head has has ridge on it, I don't know if that's significant? I'm also looking at distribution block for clues

Yes, quite good

With an adapter, didn't show that

I got this made up, i connected it directly from the pump outlet and straight into the the tank, to bypass any restrictions, I got zero pressure, so I replaced the pump. The new pump created pressure, but didn't check what pressure, then after 5mins lost pressure.

Hi Everyone, It's been a while, but I have been busy, but parts can take a while to arrive. Anyway, this the situation at the moment, I rechecked the the pump & re-assembled it correctly, fixed the broken casting (brazed the crack & machined it back) no leaks. Put everything back together & got...

Is it possible a relief valve is stuck open, is there more than one?

So when the actuator opens, it closes the open circuit back to the tank and creates direct pressure from the pump to the cylinder, until the relief valve opens? (in simple terms)

Just out of curiosity, does the return to the transmission have a restrictor to create pressure or how does it hold pressure in the system, I'm trying to get head around it's workings.

I'll get a gauge ordered

If this is the correct position, still no pressure

I've painted where roll pins should be & the pointer

Sorry, I've been away working. I've checked the valve base & there is evidence of 2 pins. I have set the pointer on the stops & it's made no difference, no hydraulics, the 3pt link does not have much power either, but it does lift. I've also checked the filter which is ok.

It's 10.30 here in the UK, so I'll update you tomorrow. Many thanks for your patience 🙏🙏 Martin

Hi Dan I owe you an apology about schematic for the hydraulics, see amended sketch. Also another pic of the outlet block , the bolt with the roll pin in just rotates, is it meant to be threaded, what should it do?