Hi there,No i did not check pump pressure but i will do it.We bought this machine,machine was about 21000hrs.It worked perfectly about 10 days.But one day pilot pump stopped working.We opened the main hydraulic pump,we saw that some broken teeths of shaft drive ,shaft pinion,and gear.The broken teeths entered to pilot pump(pilot pump sucks oil from main pump) and stopped the pilot pump.We put new pilot pump and new parts of main hydraulic pump,we replaced,(bearing,shaft drive,shaft pinion,pilot pump,gear).After the replacement machine worked about 2 hours weak/slow and during working engine were not run under load.After 2 hours machine began to vibrate and noisy pump. Again we opened main hydraulic pump.We saw that broken plate retaining.Yes we did a mistake we put plate retainig reverse side.One piston was free from plate retainig and caused to vibrate whole machine. We removed broken particles from main pump and pilot pump..Some particles entered to pilot pump but pilot pump is working.WE replaced shaft drive,shaft pinion,pistons,plate retainings,pin centers,cylinders and gear.If i do any hydraulic function Engine runs under load but The machine was too weak/too slow.Why? If displacement between cylinder and valve plate is high machine would be weak/slow and engine can not run under load.I think pump pressure is good because engine runs under load. thanks for input.
