30t hydraulic press brake is the basic equipment of sheet metal processing,
but also the most common one of the general equipment, the use of large, so mechanical equipment in the long-term use of such problems will appear,
small make up for you the 30t hydraulic press brake is the most likely to appear part of the problem, and its solution. For your information.
(1) The damping hole is blocked, and the system has no main pressure relief valve failure.
Improper adjustment, the spring is broken, the valve heart cone seal is not good or the valve heart is stuck.
Clean, grind, adjust, repair or replace relief valves.
The solenoid reversing valve is faulty and its core is stuck. Clean, grind or replace the slide valve.
(2) the slider does not move but can rely on its own weight to downward axial piston pump can not supply pressure oil: the oil rod is short of oil;
Check the start button, the motor fails to start. Ac contactors and thermal relays and motors; The plunger pump itself fault, dismantle or replace the plunger pump.
(3) The overflow valve of the main oil circuit is faulty.
It may be that the damping hole is blocked and adjusted improperly, the spring is broken or the valve heart is rusty and stuck.
The relief valve needs to be adjusted, repaired or replaced.
(4) The slide block does not parallel tighten the release valve handwheel to release air, and there is air in the balance cylinder.
After filling with oil and removing air, loosen the valve.
(5) If the vent valve leaks, remove and check the seal on the cone surface of the vent valve, repair or replace the vent valve.
(6) the check valve has internal leakage, dismantle and check the sealing of the check valve cone,
and grind the sealing surface of the cone to the best line contact or replace the check valve.
Bending machine balance cylinder piston rod head oblique iron fastening screw loose,
check and firm piston rod head oblique iron solid screw.
