What is the core task of automobile maintenance?

Automobile I repair can be divided into the following major items: 1. Machine maintenance, repair of various mechanical failures of automobiles; 2. Four-wheel positioning; 3. Dynamic balance; 4. Body painting; 5. Automotive electrician; 6. Automobile maintenance equipment in oil changing center can be generally divided into: automobile diagnosis equipment, detection and analysis equipment, maintenance and cleaning equipment, body painting equipment, maintenance supplies, maintenance tools and tire equipment. Automobile diagnostic equipment mainly includes automobile decoder, code reading card, data flow analysis, special computer and so on. Detection and analysis equipment mainly includes test bench, detection line, locator, detector, leak detector, oscilloscope, smoke meter and other detection equipment. Maintenance and cleaning equipment mainly includes automatic gearbox cleaning oil changer, power steering oil changer, butter filling machine, refrigerant recovery filling machine, nozzle cleaning detection equipment, polishing machine, waxing machine, dust suction machine and water suction machine. Sheet metal painting equipment mainly includes painting room, painting lamp, painting mixing room, girder correction, ground gossip, spray gun, etc. Tire equipment mainly refers to balancing machine, tire dismounting machine, nitrogen charging machine, tire patching machine, etc. Maintenance tools mainly refer to various maintenance tools used for manual operation, such as wrenches, screwdrivers, work tables, etc.