V8Druid
do it as well as you can,but learn to do it better
there may also be a filter in the servo control solenoid block/valve too (which is operated/controlled by the deadman switch)Have you checked servo filters in the hose line to the levers P ports on the underside of the levers
My 'Drema has a sizeable filter in this location



this filter housing screws into the valve block body which the servo cut off solenoid is mounted in, in mine ... may well be a separate filter housing in the servo circuit somewhere ?
don't have a pic of the valve block, sorry