Chapter 1 of the standard manual for the regulation of vehicle maintenance service processes, readable with the obd diagnosis and basic detection code 1. 1 fail-code reading and obd diagnosis system application of 1. 2 engine functionality monitoring and abnormality, chapter 2 maintenance order management and process control 2. 1 maintenance tasking and work-hour calculation of 2. 2 maintenance progress tracking and status updates, chapter 3 maintenance operating standards and operational instruction 3. 1 3. 1. Replacement and calibration of special components of basic maintenance operating process 3. 2Client communicationRegulation 7. 1 of the client communication and information transmission service (cct) process 7. 2 and client confirmation of feedback on chapter viii and continuous improvement of 8. 2 client feedback collection and analysis for optimization and quality enhancement of chapter i vehicle diagnostic and basic detection 1. 1 failure code reading and application of the obd diagnostic system to the car maintenance service process, which is linked to the application of the obd (on-board diagnostics) diagnostic system. The failure code provides a visual reflection of vehicle failure, while the obd system provides real-time vehicle data through standardized interfaces. The reading of the failure code to read the failure code is carried out mainly through the following steps: (1) the obd interface connecting the obd adaptor to the vehicle. (2) activate diagnostic tools to enter the failure code reading mode. (3) select the correct vehicle type and year. (4) read the failure code, including information on id, severity, frequency of occurrence of the failure code. (5) analyse the failure code and determine the cause of the failure. The application of the obd diagnostic system to obd has the following application characteristics: real-time monitoring: the obd system allows real-time monitoring of vehicle performance and timely detection of potential malfunctions. Data sharing: obd data can be shared through wireless networks to facilitate remote diagnosis and troubleshooting. Standard interface: the obd interface uses international standards to facilitate data exchange between different models. The monitoring of engine functionality and abnormally identified engine functionality is a key element in the vehicle maintenance service, allowing timely detection and troubleshooting through the monitoring of engine operation. The monitoring of engine functions includes, inter alia, monitoring of oil pressure: monitoring of engine pressure to ensure that it is within normal limits. Water temperature monitoring: monitoring engine water temperature to ensure that water temperature is within appropriate range. Oxygen sensor monitoring: monitor the working state of the oxygen sensor to ensure engine combustion efficiency. Fueljet system monitoring: monitor the operational status of the fuel jet system to ensure even injection. Abnormal recognition is a key element in engine function monitoring. Common engine anomalies: the causes of symptoms of abnormality are analysed for overheating motor overheating pumps, the failure of the dispersor to contain low engine power under pressure, increased oxygen sensor damage to the abnormal fuel consumption of the oil-routing anaerobic sensor, the increase in abnormal fuel consumption of the fuel-jet system with insufficient engine combustion, the malfunctioning of the engine's vibration jet, chapter 2 maintenance worksheet management and process control 2. 1 task allocation and time calculation of 2. 1. 1 task allocation principles should be guided by the following principles: priority: priority is given to urgent and important maintenance tasks. The principle of matching skills: assign maintenance tasks to maintenance personnel based on their professional skills. The principle of balancing workload: to ensure a balanced workload for each maintenance staff and to avoid overwork. 2. 1. 2 method of calculation of working hours 2. 1. 2 method of calculation of working hours actual working hours: the hours are calculated on the basis of the time required for the maintenance staff to actually complete the maintenance tasks. Formula: (t {}=) where (t {} is the actual working time, (t {} is the start of the maintenance mission and (t {} is the end of the maintenance mission. 2. 2 maintenance progress track and status update 2. 2. 1 maintenance progress track: visual display of the completion of maintenance tasks through maintenance progress track. Real-time update: regular update of maintenance progress to ensure real-time accuracy of maintenance information. 2. 2. 2 status update process maintenance update process (1) maintenance personnel confirm maintenance status upon completion of maintenance tasks. (2) worksheet update: update maintenance status to maintenance list. (3) manager audit: managers review maintenance status. (4) closure of worksheets: maintenance worksheets are closed once the maintenance status review has been completed. The maintenance status description has been assigned and maintenance work is being performed by maintenance staff pending the commencement of maintenance and repair work. The maintenance tasks are completed by the maintenance and inspection staff, which are pending acceptance and acceptance through maintenance tasks and are not accepted and accepted through maintenance tasks. The basic maintenance operation process in chapter iii of the maintenance operating standards and operational instruction 3. 1 for the basic maintenance process is the foundation of the vehicle maintenance service. The following are specific operational specifications: 3. 1. 1 pre-maintenance vehicle preparation inspection: thorough vehicle inspection to ensure safety of the vehicle, including, but not limited to, tire pressure, brake system, light system, etc. Tool preparation: appropriate tools such as wrench, screwdriver, wire clamps, etc. Are prepared for maintenance projects. Spare parts preparation: spare parts, such as spare parts, lubricants, etc., are prepared well in advance. 3. 1. 2 operation step of maintenance to remove old components: in accordance with the order of removal, the old parts are removed from them using specialized tools to protect the parts'surfaces and avoid scratches. Installation of new components: installation of new components in accordance with the sequence of installation to ensure that the components are robustly connected. Inspection and debugging: once installation has been completed, the maintenance area is inspected to ensure that there are no anomalies and that necessary debugging is performed. 3. 1. 3 cleaning of maintenance after repair: cleaning of repair areas and removal of residual oil, dust, etc. Lubrication: lubrication of parts that require lubrication to extend the useful life of components. Inspection: conduct a comprehensive inspection of vehicles after maintenance to ensure that functional indicators are in line with the requirements. 3. 2 the replacement and calibration of special component replacements and calibrations is an important part of vehicle maintenance, as follows: 3. 2. 1 special component replacements are defined as replacement components: special component replacements are identified based on maintenance needs. Disassembly old parts: in accordance with the order of dismantling, the old parts are removed using specialized tools to protect the parts'surfaces from scratch. Installation of new components: installation of new components in accordance with the sequence of installation to ensure that the components are robustly connected. 3. 2. 2 calibration operations determine calibration parameters: parameters that require calibration based on maintenance needs. Implementation calibration: calibration according to operational steps using specialized equipment or tools. Inspections and adjustments: once calibration has been completed, the maintenance areas are inspected to ensure that the calibration parameters are in line with the requirements and adjusted as necessary. Formula: during the calibration process, the following formula may be involved: where the error, the actual value is the value obtained by measurement and the theoretical value is the value determined by design or criteria. 3. 2. 3 maintenance and maintenance cleaning: cleaning of replacement or calibration sites and removal of residual oil, dust, etc. Lubrication: lubrication of parts that require lubrication to extend the useful life of components. Inspection: conduct a comprehensive inspection of vehicles after maintenance to ensure that functional indicators are in line with the requirements. The following table compares the replacement and calibration of special components: the replacement of the operational calibration engine to remove the engine parts; the installation of new components to remove the transformer parts using the special equipment to calibrate the engine parameters; the installation of new components to remove the brake parts using the special equipment to calibrate the transformer parameters to the brakes system; the installation of new components to use the special equipment to calibrate brake system parameters, chapter iv tools and equipment management instruction 4. 1 maintenance tools, and the storage of standard 4. 1. 1 tools for vehicle maintenance, which are classified according to function and range; the diagnostic tools for the main use of specific classification tools to detect vehicle failures, such as the obd (car-mounted auto-diagnosis system) diagnostic devices, decorator decoders, etc., and mobile vehicles, such as milligrams, cranes, which are used for the maintenance of engines, fast-tracking cases, etc.; the storage of precision components, such as the conventional maintenance of commonly used tools, such as wrestlers, sparks, bolts, etc., and testing tools to test vehicle functions, such as fuel pressure (2) placing: the tools must be properly placed and must not be stacked at will to avoid damage or loss. (3) clear identification: the tool should be labelled with information such as the name, model, specification of the tool. (4) periodic inspection: periodic inspection of the integrity of the tool and timely replacement of the damaged tool. (5) safe storage: flammable, explosive, corrosive tools should be stored separately and necessary protective measures should be taken. 4. 2 equipment use and maintenance standard 4. 2. 1 equipment use standard (1) operating instruction: operating strictly in accordance with the equipment operations manual to ensure safety. (2) training requirements: operators should receive professional training in equipment functionality and operating processes. (3) maintenance: regular cleaning, lubrication and inspection of equipment to ensure that it is in good condition. (4) unusual handling: in case of equipment failure, the use should be stopped immediately and the person concerned reported for processing. 4. 2. 2 maintenance standards for equipment (1) are clean: equipment should be cleaned in a timely manner and kept clean and dry. (2) lubrication: periodically adding lubricants to reduce wear and tear in accordance with equipment requirements. (3) inspection: periodic inspection of wear and tear of the various components of the equipment and detection of timely replacement. (4) replacement: new parts shall be replaced in a timely manner when the parts of the equipment have reached the end of their useful life or have severe wear and tear. (5) recording: maintaining equipment records, including information on maintenance time, replacement parts, etc. Formula: the relationship between the time of use of the equipment (t) and the number of maintenance (n) may be expressed by the following formula: t, where (t) is the average lifetime of the equipment。the formula indicates that the time of use of equipment is proportional to the number of maintenances, and the longer the equipment is maintained. Parameters: (t) time used (n) maintenance of equipment (t) averaged the following storage area recommendations for different types of tools: the tool category contains a special tool kit for regional diagnostic tools, a tool kit dedicated to lifting tools, a tool kit dedicated to precision tools, a tool kit dedicated to common tools for testing tools, chapter v quality control and test standard 5. 1 maintenance quality check process maintenance quality check processes are key elements for quality assurance of maintenance services, and the following are specific processes for maintenance quality check: (1) pre-maintension inspection: vehicular information verification: checking vehicle information, including vehicle models, licence plate numbers, owner's name, etc. The malfunction description confirms that the breakdown described by the client is recorded in detail and that maintenance engineers are clearly aware of the failure. Maintenance project analysis: analysis of potential maintenance projects and required spare parts based on vehicle information and failure description. (2) maintenance process monitoring: maintenance worksheet review: maintenance worksheets should contain detailed information on maintenance projects, spare parts requirements, projected hours, etc. Maintenance process tracking: maintenance engineers are required to follow standard operating procedures to ensure maintenance quality during maintenance. Spare parts management: strict control over the quality of the spare parts and ensuring that they are used in accordance with the requirements. (3) post-maintenance inspection: functional testing: functional testing of vehicles after maintenance to ensure that failure is eliminated and functional indicators are in line. Appearance inspection: inspection of vehicle appearance after maintenance, guarantees of no scratches, stains, etc. Client satisfaction surveys: client satisfaction with maintenance services is known and client feedback is collected. 5. 2 monitoring reports and records specifications are important records of maintenance quality, and the following are specific specifications for testing reports and records: (1) detection report content: report number: unique marking report, easy to search and manage. Vehicle information: vehicle model, licence plate number, owner's name, etc. Description of failure: a detailed description of the phenomenon, including time, location, frequency, etc. Maintenance projects: details of maintenance projects, including replacement of spare parts, maintenance operations, etc. Test data: record data during testing, such as failure codes, sensor data, etc. Results: analysis of causes of failure and recommendations for maintenance programmes. Maintenance staff signature: maintenance staff signature confirming maintenance results. (2) record-keeping norms: record-formatting: a uniform record-keeping format that is easily accessible and managed. Record keeping: archiving of detection reports and records for a period of not less than five years. Information security: ensure the security of record-keeping information and prevent disclosure. Chapter vi, safety and environmental standard 6. 1, safety in maintenance operations, maintenance and safety in operation, is a key element in ensuring the safety of maintenance personnel and vehicles. The following are the specific elements of the maintenance operation safety code: 6. 1. 1 safety protocol (1) before entering the work area: maintenance personnel should wear personal protective equipment such as helmets, work clothes, protective glasses, gloves, etc. (2) power management: all power switches should be clearly marked to ensure a second confirmation after the power outage to avoid error. (3) vehicle support: when lifting vehicles for maintenance, reliable vehicle support shall be used to ensure their stability. (4) high-altitude operations: safety belts shall be worn while conducting high-altitude operations and shall be secured at secure fixed points. (5) flammable and explosive articles: when dealing with flammable and explosive articles, they shall be carried out strictly in accordance with operational protocols and shall ensure good ventilation. 6. 1. 2 security training and education (1) training for new staff: new staff should receive comprehensive security training, including safety protocols, contingency plans, etc., prior to induction. (2) periodic security checks: periodic security knowledge checks of maintenance personnel to ensure their proficiency in safety protocols. (3) case analysis: regular case analysis is organized to improve safety awareness and preparedness of maintenance personnel. 6. 2 waste disposal and environmental protection require that waste disposal and environmental requirements be an integral part of auto maintenance service processes. Specific elements of waste disposal and environmental protection requirements are as follows: 6. 2. 1 classification of waste (1) organic waste: e. G. Oil, gasoline, brake oil, etc. (2) inorganic waste: e. G. Screws, bolts, metal fragments, etc. (3) hazardous waste: e. G. Lead batteries, fluorescent lamps, etc. 6. 2. 2 waste disposal (1) organic waste: treatment through specialized institutions in accordance with relevant provisions. (2) inorganic waste: when collected, recovered or buried as required. (iii) hazardous waste: to be treated by specialized institutions to ensure that the environment is not contaminated. 6. 2. 3 environmental requirements (1) energy efficiency reduction: in the maintenance process, energy-saving equipment is used to minimize energy consumption. (2) waste recycling: encourage repairers to recycle waste and reduce environmental pollution. (3) green maintenance: promote green maintenance technologies to reduce environmental impacts. Chapter vii service flow and client communication code 7. 1 client communication and information transmission is an important component of the vehicle maintenance service to ensure quality of service and client satisfaction. The following is a standardized customer communication and information transfer process: initial communication: maintenance staff communicates with clients by telephone or on-line platform, is aware of the basics of the vehicle and the needs of clients, and defines the scope of maintenance and the projected costs. Information records: maintenance personnel are required to keep detailed records of customer information, vehicle information, maintenance projects, projected maintenance time, etc., to ensure that the information is accurate. Maintenance update: during the maintenance process, maintenance staff should regularly provide feedback to clients on maintenance progress, including completed maintenance projects, pending maintenance projects, expected completion time, etc. Maintenance results confirm that, upon completion of maintenance, maintenance staff are required to communicate with clients face-to-face or by telephone to confirm maintenance results and to answer client questions. 7. 2 service flow and client recognition is the normative and client satisfaction assurance of the service flow, as follows: maintenance of appointments: clients can make appointments for maintenance by telephone, online platform, etc., and maintenance staff are required to complete confirmation of appointments within the time of appointment. On-site reception: maintenance staff must receive clients and direct them to the maintenance area within the agreed time frame. Maintenance inspection: maintenance staff are required to conduct a full inspection of vehicles, confirm maintenance items and inform clients. Maintenance confirms that maintenance personnel are required to confirm maintenance projects, projected costs, maintenance time, etc. With clients to ensure that the information is accurate. Maintenance implementation: maintenance personnel are required to perform maintenance in accordance with standard procedures to ensure maintenance quality. Maintenance and inspection: upon completion of maintenance, maintenance staff are required to invite clients for inspection and inspection to confirm the maintenance results. After-sale services: after-sales services, including quality assurance periods, complaint channels, etc., are provided to safeguard customer interests. Form: maintenance service flow and customer confirmation point serial number flow operating point 1 make an appointment for maintenance assurance appointment, maintenance project, projected cost, etc. In order to ensure client satisfaction and to continuously upgrade the quality of services, details of client feedback collection and analysis are provided below in the standard manual for the regulation of car maintenance services. 8. 1. 1 flow of feedback (1) on-site feedback: in the maintenance process, maintenance technicians should be proactive in asking clients about their satisfaction with services and recording feedback. (2) client service centres: a dedicated client service centre is established to collect feedback from clients and regularly collate analyses. (3) online feedback: the online feedback function is provided through the official website, the public number and on-line platform to facilitate the ready submission of comments by clients。8. 1. 2 feedback (1)
