Stevessuperduty
New User
i have a john deere 710b backhoe with no charge oil pressure to
main pump at idle but ok flow at operating rpm. hydraulics all
work fine if kept at a high rpm but as soon as you idle it down
hydraulics begin chattering and the pump starves for oil. I have
a manual but honestly it has my head spinning around trying to
check 30 different check valve, relief valves...etc. Clean fluid,
clean filters, clean pick up screen. Put gauges on charge oil port
on pump and 0 at idle and 50-70 at higher rpms. any help would
be greatly appreciated.
main pump at idle but ok flow at operating rpm. hydraulics all
work fine if kept at a high rpm but as soon as you idle it down
hydraulics begin chattering and the pump starves for oil. I have
a manual but honestly it has my head spinning around trying to
check 30 different check valve, relief valves...etc. Clean fluid,
clean filters, clean pick up screen. Put gauges on charge oil port
on pump and 0 at idle and 50-70 at higher rpms. any help would
be greatly appreciated.
