Mechanical Press Daily Maintenance Guide: Before, During and After Operation

## Introduction To extend the service life of mechanical presses and ensure precision, operators must properly perform daily maintenance. Well-maintained equipment ensures stamping quality, reduces equipment failures, and most importantly, protects operator safety by preventing accidents. ## Phase 1: Before Starting Work ### 1. Workplace Organization - Clear the press table and surrounding area of all unrelated objects. - Position workpieces and blanks in designated locations. - Ensure proper lighting and ventilation in the work area. ### 2. Mechanical Inspection - Check friction surfaces and lubrication points for signs of wear. - Fill all oil cups with lubricant. - Verify die installation is accurate and secure. - Inspect die cutting edges for cracks, dents, or gaps. ### 3. System Checks - Ensure clutch is disengaged before starting the motor. - Test brake, clutch, and control mechanism actions for flexibility, accuracy, and reliability. - Perform several dry-run cycles to confirm normal operation before starting actual work. ## Phase 2: During Operation ### Ongoing Maintenance Tasks 1. **Waste Removal**: Regularly clear stamped parts and scrap from the work table using hooks or brushes. Never use bare hands. 2. **Lubrication**: Periodically rotate and refill all oil cups. Maintain adequate lubrication at all friction points. 3. **Deep Drawing Operations**: Apply lubricant during deep drawing processes and ensure material cleanliness. 4. **Abnormality Response**: Stop immediately and cut power if you notice:/n - Abnormal slider descent - Unusual impact sounds - Consecutive stamping - Burrs on finished products Locate the fault and resolve before resuming work. ## Phase 3: After Work Completion 1. Disengage the clutch mechanism. 2. Turn off the main power supply. 3. Clear all debris from the work table. 4. Wipe oil stains from the press and dies. 5. Apply anti-rust oil to presses and dies. ## Lubrication System Management Mechanical presses rely on proper lubrication at all moving parts. Lubrication reduces friction resistance and wear between metal surfaces. ### Lubrication Methods - **Distributed Lubrication**: Small crank presses typically use oil guns, oil cups, or hand-operated hydraulic pumps to supply individual lubrication points. - **Centralized Lubrication**: Medium to large presses and high-speed forming presses use hand-press or motor-driven hydraulic pumps for centralized oil distribution. ### Recommended Lubricants - **Lubricating Oils**: L-AN68, L-AN100 total-loss system oils - **Greases**: No. 1, No. 2, No. 3 calcium-based grease; No. 2, No. 3 sodium-based grease Always consult the press operation manual for specific lubrication points, lubricant types, and lubrication intervals for your particular model.