Press brake maintenance is essential to ensure its optimal performance, safety, and longevity. Regular press brake maintenance can prevent breakdowns, minimize downtime, and improve the overall efficiency of the machine. Here are some key steps to maintain any press brake.

Read the Press Brake Manufacturer’s Manual

Always start your press brake maintenance by thoroughly reading and understanding the manufacturer’s manual for your specific press brake model. It contains important information about maintenance schedules, recommended lubricants, safety precautions, and troubleshooting tips.

Press Brake Maintenance manual

Daily Inspection for Press Brake Maintenance

Conduct a daily visual inspection of the press brake before starting work. Check for any loose or damaged parts, leaks, or abnormal noises. Address any issues earlier than later to prevent them from escalating.


Follow the manufacturer’s guidelines accordingly for lubricating various parts of the press brake, such as guides, bearings, screws, and hydraulic components. Lubricate the machine regularly to reduce friction, prevent wear, and ensure smooth operation.

hydraulic cylinder press brake
electrical cabinet

Hydraulic System Maintenance

Part of press brake maintenance is checking the hydraulic system for leaks and ensure that fluid levels are within the recommended range. Regularly replace hydraulic filters and keep the reservoir clean to maintain proper pressure and avoid contamination.

Electrical System

Inspect the electrical components, wires, and connections regularly. Keep them clean and free from dust or debris. Address any loose connections promptly to prevent electrical issues.

Backgauge and Tooling

Check the backgauge for proper alignment and functionality. Ensure that the tooling is in good condition and properly fastened. In any event needed, replace any damaged or worn-out tooling as necessary.

Ram and Bed Parallelism

Verify the parallelism between the ram and the bed. Adjust in the case of needing to maintain accurate bending results.

Press Brake Maintenance Safety Features

Test all safety features in detail, such as emergency stop buttons and safety guards, in order to ensure they are functioning correctly.


Regularly clean the machine, removing dust, chips, and debris that may accumulate over time. Generally, keep the work area clean and organized.

Press Brake emergency stop

Preventive Maintenance Schedule

Create a press brake preventive maintenance schedule based on the manufacturer’s recommendations and the machine’s usage. This schedule should include routine inspections, lubrication, and part replacements.

Operator Training

Ensure that operators are properly trained in using and maintaining the press brake. Especially encourage them to report any abnormalities or concerns immediately.

Professional Servicing

For more complex maintenance tasks or repairs, rely on qualified service technicians. Regularly schedule professional inspections and servicing in order to catch potential issues early.

KAAST HPB Press Brake

To keep your HPB hydraulic press brake in top operational performance, it is important to keep up with preventative maintenance. While you should always follow your machine manufacturer PM guidelines, here is what we recommend for maintaining KAAST hydraulic press brakes!

HPB 31135 CNC Press Brake


Weekly additions of grease for your KAAST HPB press brakes will help to keep everything running smoothly. As long as grease coats the moving parts, it will help to protect them from wear and tear. As the machine runs, the grease accumulates dust and debris and breaks down from heat and other environmental factors. It is important to apply high-quality grease to the guideway buffers and the R-Axis slide (if applicable).


Daily lubricating the tools of your press brake is an important part of press brake maintenance, thus helping to prevent rust and extend tool life. Apply protective lubricant to a clean rag and use to wipe down all raw metal surfaces at the beginning of each day.

press brake grease points
Press Brake Maintenance guard check
hydraulic press brake system

Guarding Checking

At the start of each day, it is important to take a few moments to check for possible damage that may have occurred to the safely systems. Confirm all guarding is correctly positioned and secure. Light curtain transmitters and receivers should be gently wiped with a clean lint-free cloth and wiring should be checked for loose connections.

Hydraulic System Checking

Equally important is to inspect the cylinders regularly to be sure there are no leaks on your hydraulic press brake. While the cylinders should have a light sheen of oil on them, any dripping, pooling, or puddling should be investigated asap to avoid potential further damage.

Adequate levels of hydraulic fluid must be maintained for your press brake to function properly. All KAAST hydraulic brakes feature a site glass allowing the operator to monitor hydraulic fluid levels. While the fluid level will slowly need to be topped off, dramatic changes to hydraulic fluid levels may indicate leaking. It is important that leaks are identified and corrected as quickly as possible because damage can be caused to surfaces not intended for hydraulic fluid.

Use a shop vac fitted with a soft brush on the hydraulic circuits (hoses, connections, etc) when needed and ensure they are clean, and no leaks are visible.

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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