Just bought a B2150 HST with 4,000 hours on it.
Raising the loader or 3pt there is "shudder" or intermittent action. It goes up a couple inches stops, wait 3 seconds goes up again, stops etc.
I have changed the fluid, cleaned the screen, replaced the spin on filter. I replaced the o-rings at the screen, and replaced the first rubber hose on the suction line. It sounds like intermittent hydraulic flow at the diverter valve, when you can hear the flow the loader or 3pt moves, when it stops the flow sound stops. I’m going to change the spin on & the fluid again tonight/ tomorrow because it is still not super clean fluid (no water just kinda nasty still from what got mixed in from cylinders in loader etc.)
Also notable when you first start the tractor after sitting overnight everything works perfectly smooth for amount 1-2 minutes. Draining the fluid it seems bubbly/ cavitation? What am I missing here?
Is it still sucking air somewhere? Is the pump bad itself? HST seems to work fine/ smooth etc.
Raising the loader or 3pt there is "shudder" or intermittent action. It goes up a couple inches stops, wait 3 seconds goes up again, stops etc.
I have changed the fluid, cleaned the screen, replaced the spin on filter. I replaced the o-rings at the screen, and replaced the first rubber hose on the suction line. It sounds like intermittent hydraulic flow at the diverter valve, when you can hear the flow the loader or 3pt moves, when it stops the flow sound stops. I’m going to change the spin on & the fluid again tonight/ tomorrow because it is still not super clean fluid (no water just kinda nasty still from what got mixed in from cylinders in loader etc.)
Also notable when you first start the tractor after sitting overnight everything works perfectly smooth for amount 1-2 minutes. Draining the fluid it seems bubbly/ cavitation? What am I missing here?
Is it still sucking air somewhere? Is the pump bad itself? HST seems to work fine/ smooth etc.
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