Maintenance and repair of the car is on the LLC Otabeksupertrans (LLC Zhizzahavtotransservis) - Дипломная работа

By periodicity, and the complexity of the list of works Car maintenance is divided into the following types: Daily maintenance (DM); The first maintenance (M-1); The second maintenance (M-2); Seasonal maintenance (SM). DM includes oversight aimed at ensuring safety, as well as work to maintain proper appearance, refueling, oil and coolant, and for some types of rolling stock - sanitization body. DM is performed after the work on the motor company (MC) rolling line. M-1 and M-2 include control (diagnostic), fixing, adjusting, lubricating and other activities aimed at the prevention and detection of faults, reducing the intensity of derating technical state of rolling stock, fuel economy and other operating materials, reducing the negative impact of cars on the environment. Failure to comply with regulations governing causes premature wear of the main reasons for which are: non-compliance running car, untimely and poor maintenance, fast driving on bad roads, failure to comply and start the engine warms up, the use of unsuitable varieties of oils and lubricants. Great influence on the wear parts have driving mode, road and weather conditions, fuel quality, lubrication, maintenance and driving skills. When justifying the optimum mode the car is a list of operations is determined by the coefficient of repeatability, the frequency is set by statistical data path of a vehicle to an acceptable parameter value node unit. Since the mileage limit to the node status is random, the large scatter in the data, and therefore to reduce costs to the receiving frequency is more than the minimum, taking into account the confidence level of probability. At the same time a certain portion of vehicles needed at the specified intervals before, and the overwhelming majority - later. To reduce cost and increase reliability maintenance necessary to carry out work, when the parameter reaches the allowable value. And this is only possible with timely and accurate determination of the technical condition of the car without disassembling. Technical control, which is mainly produced the motor company visually insufficiently effective, evaluation of technical condition depends on the skill of the controller. For objective monitoring devices are necessary, that can be used to identify vehicles that pose a risk at the same time avoiding removing serviceable unit. Instrumental determination of the technical state of the node, without disassembling the unit called diagnosing. Technical condition of the car is characterized by structural parameters (clearance, center-distance, deflection, displacement, linear dimensions, surface state of mating parts, etc.). Calculation of annual volumes of activities of maintenance, diagnosis and CR. The annual volume of production activities of maintenance, diagnosis and repair of current determined by the formula: Годовой объём производственных работ определяю по формуле: Calculation of auxiliary labor costs for the enterprise. Annual volume of auxiliary labor costs, which include ongoing care for buildings and facilities, equipment repair, equipment, the enterprise is determined by the formula: Table 2.1 shows the distribution of self-service works by type of activity. Table 2.1 Distribution of self-service works by type of activity types of jobs labor content, % labor content, person-hour mechanical 10,0 2991,259968 Hand 16,0 4786,015949 Forging 2,0 598,2519936 welding 4,0 1196,503987 tinsmith 4,0 1196,503987 coppersmith 1,0 299,1259968 Electrical 25,0 7478,14992 Piping (locksmith) 22,0 6580,77193 Repair and construction and woodworking 16,0 4786,015949 TOTAL 100,0 29912,59968 The complexity of the general production work for a large share of service jobs, as workers have to provide daily production of all necessary. The composition and the approximate distribution of overhead work mix in Table 2.2. Table 2.2 The composition and the approximate distribution of overhead work types of jobs labor content, % labor content, person-hour black gang 12,0 5383,067942 cleaners 12,0 5383,067942 Storekeepers 14,0 6280,245933 Drivers peregonschiki 30,0 13457,66986 general workers 32,0 14354,84785 TOTAL 100,0 44858,89952 The distribution of annual volumes of works on and capital repair (CR) works on industrial zones and areas Volume and CR distributed at his place of execution by technological and organizational characteristics. And TS performed on fasting and production sites. To include guards work and TS performed directly on the car. Checking and repair units, mechanisms, assemblies removed from the vehicle, performing on. The distribution of annual volume of work is presented in Table 2.3. Table 2.3 Annual volume of work on MC DM M-1 M-2 CR Тсам ΣТ guards Cleaning washers wiping diagnostic Fixing Thrust Lubricants, refueling, cleaning Electrical By the system power bus Body Razborochno-assembly 10255,77 7976,71 4558,12 - - - - - - - - - - - - 1212,71 7276,2624 1364,2992 3031,776 909,5328 454,7664 909,5328 - - - - -