Daily Maintenance Guide for Scrap Metal Shredder

December 23 , 2025

I. Daily Pre-Start Inspection

1. Appearance and Structural Inspection

Inspect the main components such as the machine body, cutter box, and frame for obvious deformation, cracks, or corrosion.

Confirm that all bolts and nuts (especially the bolts securing the cutter shaft, blades, and motor) are tight.

Check that safety devices such as the protective cover and safety doors are intact and reliably closed.

2. Blade Condition Inspection

Inspect the blades through the inspection port for wear, chipping, or looseness.

If severely worn blades are found (decreased cutting efficiency, larger output size), adjust or replace them promptly.

3. Electrical System Inspection

Inspect the control cabinet wiring for looseness or aging.

Confirm that the emergency stop button, limit switches, and other safety functions are working properly.

Check the motor and reducer for abnormal noise or signs of overheating.

4. Lubrication System Inspection

Check that the oil levels at bearings, gears, hydraulic system, and other lubrication points are normal.

Check that the lubricating oil is clean; replace it immediately if contaminated or deteriorated.

5. Hydraulic System Inspection

Check the hydraulic oil level and quality, and confirm there are no leaks in the pipelines.

Test the smoothness of the hydraulic cylinder's pushing and pressing functions.

II. Monitoring During Operation

1. Monitoring Operating Status

Pay attention to whether the equipment's operating sound is stable. If abnormal vibrations or impact sounds are heard, stop the machine immediately for inspection.

Monitor the temperature rise of the motor, reducer, and bearings to ensure it is within the normal range (generally ≤60℃).

2. Observing Output Quality

Periodically check the size of the shredded material. Uneven size may indicate blade wear or the need to adjust the gap.

3. Feeding Monitoring

It is strictly forbidden to allow oversized materials (such as those that are too thick or too long) or non-metallic debris (such as concrete blocks or flammable materials) into the machine to avoid jamming or damaging the equipment.