Troubleshooting — Why?

My Rosin Press Hydraulic Hand Pump Will Not Maintain Pressure Well, Why? To help prevent personal injury, always release pump pressure and disconnect hoses(s) from pump before making repairs.Refer to the appropriate pump parts list during trouble-shooting. Please check these problems yourself first, and then make clear what happened to your pump: Problem Cause Solution  Pump losing pressure System components leakingDirectional control valve leaks ornot adjusted properlyFluid leaking past outlet checkseat(s) Repair or replace as necessaryReseat, repair, or replace directional control assembly and correctly adjustCheck for dirt. Reseat pump body and/or replace poppet(s) or ball(s) Pump not delivering fluid Low fluid level...

My Bottle Jack Rosin Press Does Not Hold Pressure, Why?There are many factors that may cause the jack to not hold pressure, much apprecaited if you could check it out by yourself:  Symptom Possible Causes Corrective Action Jack will not lift load Release valve not tightly closedOverload conditionAir pressure inadequate Ensure release valve tightly closedRemedy overload conditionEnsure adequate air pressure Jack will lift, but not hold pressure Release valve not tightly closedOverload conditionHydraulic unit malfunction Ensure release valve tightly closedRemedy overload condition Jack will not lower after unloading Reservoir overfilled Ensure load is removed, then drain fluid to proper level...