Sumo versadrill

[jonnyjon]

Just wondering if anyone on here has experience of a 6m drill, machine is slow to lift and lower, pretty certain there are restricters somewhere but I can't find any, sumo guys don't seem to know, I'm thinking there might be a restricter in the rams themselves,sumo says no so I'm lost, maybe someone can shed some light?? Thanks

 

[JD6920s]

Just wondering if anyone on here has experience of a 6m drill, machine is slow to lift and lower, pretty certain there are restricters somewhere but I can't find any, sumo guys don't seem to know, I'm thinking there might be a restricter in the rams themselves,sumo says no so I'm lost, maybe someone can shed some light?? Thanks

Have a look, undo the ram pipes, you’ll soon see, failing that check the coupler end.

 

[jonnyjon]

Have done all of the above, nothing grrrr

 

[Mark C]

Could be na inrernal oil leak in the rams, some oil getting past the piston?