CNC Tube Bender Cooling System Troubleshooting — How to Solve Over High Oil Temperature
Target Keywords：tube bender overheat, CNC bender cooling system, hydraulic bender high oil temperature
Long time continuous operation of hydraulic CNC tube benders may trigger over temperature alarms. Excessive oil temperature causes pressure drop, precision drift, seal degradation and protective shutdown.
Common causes: Radiator clogged with metal chips and dust; faulty cooling fan; over filled or degraded hydraulic oil; continuous over load operation. Poor workshop ventilation worsens overheating in summer.
Troubleshooting steps: Clean radiator surface; check cooling fan function; replace degraded hydraulic oil; avoid operation beyond rated load. For emergency relief, reduce cycle rate and pause production for cooling. Repeated over heat alarms must be addressed promptly; prolonged high temperature shortens hydraulic component lifespan. Fully electric servo machines have no hydraulic oil but servo motors still need dust proof heat dissipation.