The pickling-free rust remover is a kind of equipment with high rust removal efficiency in the rust removal equipment. After the equipment is installed and debugged, it must be maintained in strict accordance with its necessary maintenance procedures when it is put into production. 1. All oil filling points of the equipment must be filled with oil, lubricating oil or grease regularly according to their requirements. 2. The seals (vulnerable parts) must be checked daily and replaced immediately if they are damaged. 3. Check the chamber body guard every day, and replace it immediately if it is damaged. 4. Check the guard plate, blade, impeller, directional sleeve, and blast wheel of the shot blasting device twice every shift, and replace it immediately if damaged. 5. The electrical system should be checked twice. 6. All transmission parts are inspected twice a week. 7. The operator should check the cleaning effect at any time. If there is any abnormality, stop the machine immediately and conduct an overall inspection of the equipment.