Properly Maintain High Pressure Components and Seals

Dec 17, 2014
High pressure waterjet cutting and cleaning is an erosion process. Maintaining your Hp system is critical so this same erosion process doesn’t destroy the Hp pump components. If you see a leak from a weep hole, repair/replace your seals as soon as reasonably possible. Allowing it to leak will allow the continuing of the erosion process and all mating parts may require replacement in addition to having the system work harder to maintain pressure.
 
waterjet-serviceIf any of the Hp seals indicators begins to indicate leakage, monitor it closely.  Once it reaches the point to where it is dripping several drops each cycle, schedule downtime at the end of that shift to get it changed out. If the seal indicator is squirting a stream of water each cycle, shut the pump down immediately and change the seal(s); failure to do so may result in the Hp cylinder becoming damaged or worse yet, the hydraulic system getting water in it which can lead to hydraulic pump failure. If the intensifier cycles when the unit is in a static state (jet off, intensifier on), check for external leaks as well as internal leaks such as the bleed down needle and seat or the high or low pressure check valves. Often times you’ll find excessive heat. You can monitor this by carefully touching the bleed down valve Hp outlet adapter, Hp poppet body, and the inlet water line near checktube. If you find excessive heat in any of these areas, it indicates internal leakage and those components will need to be replaced or relapped.
 
Refer to the servicing section of your manual for detailed instructions. Be sure to clean the components and follow the torqueing guidelines. Failure to service the unit properly will lead to excessive downtime and increased repair cost.
 
Take care of your equipment and it will take care of you.
 
***Always refer to your Jet Edge service manual .***