The function of the stone washing machine is complete, reliable and can reach the factory level. Specific problems and potential problems must be registered. Diagnostic operation Diagnostic operation is mainly to diagnose the key problems in the use of stone washer equipment through no-load operation and load operation. In the diagnosis, it should be combined with the operator's situation report, daily operation record, maintenance parts replacement table, accident analysis and daily maintenance files to focus on fault diagnosis.

1. The diagnosis process of the no-load operation of the stone washing machine is mainly caused by the human sensory hearing device fault through listening, sighting and touching. The main contents are as follows:
(1) Diagnose the abnormal noise of the transmission gear in the gear box of the stone washer equipment.
(2) Diagnose the cause of heat generation between the rotating part of the bearing or the sliding part.
(3) The main reason for determining the vibration of the stone washer.
(4) Find the oil leakage of the lubrication and hydraulic system.
(5) Judging the cause of the movement disorder of the stone washer component.

2. Washing machine equipment load operation diagnosis.
(1) By washing the stones to judge the wear parts of the stone washer, such as the washing wheel, bearings and other parts, as well as the cause of the accuracy failure caused by improper assembly.

3. In the experimental operation diagnosis operation of the stone washer manufacturer, in order to accurately determine the position and the main cause of the failure from many possible estimations caused by the failure, it is easy to use the experimental method for diagnosis. In practice, the commonly used experimental diagnostic methods are as follows. 1 isolation method; 2 replacement method; 3 comparison method; 4 heuristic method; 5 measurement method; 6 comprehensive method. Formulation of modification scheme (1) According to fault diagnosis, failure analysis and wear of parts, determine the parts to be disassembled and The scope of repair, to determine the main components that the equipment needs to be replaced, especially castings, outsourcing parts and purchased parts.
(2) Develop the main part repair process that needs to be repaired.
(3) Formulate the assembly and adjustment process plans and requirements for components.
(4) Determine the quality standards for equipment repair according to the current status and repair conditions of the stone washing machine equipment.