I have just got hold of a lathe fitted with a power collet chuck. It's badged Burnerd but it's the same chuck sold previously by Crawford (CPC series). It uses hydraulics to unclamp and this in this case the hydraulic power is provided by an air over oil intensifier. I want/need to replace the hydraulic hose between intensifier and chuck but before I randomly unscrew it I really want to know if there's any static pressure in the system? Has anyone ever done any maintenance on this kind of chuck?
Thanks in advance
Thanks in advance