Changing the Oil for Press Brake Maintenance
Hydraulic press brakes require the hydraulic fluid to be changed in accordance with their use. After the first 1000 hours of operation, a complete draining of the system with replacement of all filters is recommended for KAAST HPBs before continuing use. Hydraulic fluid can break down, therefore, becoming dirty over time and through regular use (or extended storage). After the initial fluid change, most machines can be put on to a schedule for changing hydraulic fluid after every 2500 hours of operation.
It is important to fully lower the top tool to the lower tool before draining the fluid from the machine, as a sudden loss of hydraulic pressure may cause the upper ram to drop unexpectedly. Also, if excessive sediment or blurring is observed, it may be necessary to clean the tank by filling 25% with clean hydraulic fluid, stirring, and draining again, to remove any remaining particles in the tank. Finally, in order to resume operations, make sure the tank is refilled to the correct level.
Over time vibrations may loosen connection bolts which need to be tight for safe operation. Weekly checks of the cylinder foot connection bolts, top tool adjustment bolts, and safety guard connection bolts will help to be sure any looseness can be remedied before it becomes a problem.
In conclusion, by following these press brake maintenance guidelines, you can overall extend the life of your press brake and keep it operating at its best, ensuring safety, accuracy, and efficiency in your bending operations.
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