Repair Life, as you know, is good, but good life is even better. And although popular wisdom claims that the hut is not red in corners, rarely any owner is indifferent to his dwelling. In pre-perestroika times, the Constitution of the USSR clearly stated that “citizens of the USSR must

Aggregate machine

Repair

159. The service station did not accept the car for warranty repair, since the pre-sale preparation was carried out not by the seller, but by another organization. Is the right to warranty repair lost in this case?

159. Station Maintenance did not accept the car in warranty repair, because pre-sale preparation was carried out not by the seller, but by another organization. Has the right to warranty repairs been lost? in this case? The right has not been lost. Legislation does not

Overhaul (CR) of cars, units and assemblies is carried out at specialized repair enterprises, factories, workshops. It provides for the restoration of the operability of cars and units to ensure their mileage until the next major overhaul or write them off, but not less than 80% of their mileage from the mileage norms for new cars and units. During the overhaul of a car or unit, it is completely disassembled into units and parts, which are then repaired or replaced. After completing the parts, the units are assembled, tested and sent to the assembly of the car. With an impersonal repair method, the car is assembled from previously repaired units. Cars and buses are sent for overhaul, if overhaul of its body is necessary. Trucks are sent for overhaul, if overhaul of the frame, cab is necessary, as well as overhaul of at least three main units. As a rule, a complete vehicle undergoes one major overhaul during its service life. The purpose of overhaul diagnostics is to check the quality of the repair. Machine repair production process is a set of actions of people and tools of production, performed in a certain sequence and ensuring the return of working capacity to worn out machines, mechanisms or parts that they lost during operation. Technological process- this is a part of the production process containing actions to sequentially change the state of the repair object or its component parts when restoring their performance. An example of a technological process is disassembly and assembly work, restoration of parts by surfacing, machining, polymer materials and other methods. A technological process refers to a part, unit or machine. It consists of several technological steps. The technological process at repair enterprises is performed in the form typical, routing and operational processes, differing from one another in the following features.Typical technological process groups of parts with common design features are developed to eliminate the same defects. It is characterized by the unity of the content and sequence of most technological operations and transitions, which are equally applied to any part of this group. For example, shafts and axles straightening, vibration arc surfacing, chrome plating or iron plating, etc. Route technological process performed according to the documentation, which indicates only the sequence of technological operations without the content of transitions and processing modes. Operational technological process perform according to the documentation, in which the operations are set out with an indication of transitions and processing modes. The composition of the production process at a repair enterprise largely depends on the name and design features repaired objects. The combination of various assembly units in machines, isolated from one another, makes it possible to dismember the production and technological processes of their repair into separate operations performed simultaneously (in parallel). This division allows you to significantly expand the scope of work and reduce the time spent on the object under repair. The degree of dismemberment of the production process of repairing a machine depends on its design and program, that is, on the type of production. With an increase in the program, the production process is divided into a larger number of operations. If the machine consists of a significant number of easily detachable elements, then the production process is more clearly divided into operations performed in parallel. Despite the large number of brands of cars, types and sizes of repair enterprises, the production process of repairing tractors and cars consists of the following main parts and operations: acceptance for repair, external cleaning and washing; disassembly of machines into assembly units (units, assemblies) and parts; cleaning and flaw detection of parts; restoration of parts and assembly of assembly units; assembly, adjustment, running-in and testing of units, assemblies and the machine as a whole; painting and delivery of the repaired machine (unit) to the customer or to the warehouse. Repair methods... At repair enterprises, the most widespread are impersonal, non-impersonal and aggregate methods of repairing machines. An impersonal repair method: serviceable or refurbished assembly units and parts do not retain their belonging to a specific repair object, and during assembly can be delivered to any similar repaired object. This repair method simplifies the organization of production. Disadvantages: The worn-in fit pairs of parts are uncompleted and, during assembly, they are connected with parts of varying degrees of wear, not worn-in to one another. As a result of the subsequent running-in, there is a rapid increase in wear and the resource of the machine (unit) is significantly reduced. In addition, impersonal repair makes it difficult to organize incentives for the safety of cars, since after each regular repair, assembly units and parts are installed on the car, it is not known how many have worked on others. unknown machines, that is, after such a repair, the whole machine is depersonalized. An impersonal repair method: serviceable or refurbished assembly units and parts retain their belonging to a specific repaired object. This repair method practically eliminates all the disadvantages of impersonal repair, but significantly complicates the organization of production at specialized enterprises with a large volume of work. Advantage: all worn-in fit pairs of parts are not dismantled, but installed in the same body parts and on the same machines, as a result of which the remaining service life of the parts is fully used. Aggregate repair method: defective assembly units and parts are replaced with new ones or pre-repaired. The whole process comes down to performing disassembly and assembly work associated with the replacement of the unit. These works can be carried out in small workshops. Machine downtime for repairs is sharply reduced and its quality is increased. Assembly units can be sent for repair to specialized enterprises. This method has found the widest application in car repairs, since modern cars are easy to dismember into units (engine, front axle, rear axle, etc.). The disadvantages of aggregate repair are the same as in the case of impersonal repair: replacing assembly units with others leads to an impersonalization of the entire machine. Acceptance for repair and out of repair... Cars received for repair must meet the requirements of the technical conditions for handing them over for repair, be complete, have no signs of disassembly and replacement of units and parts that are clearly unusable.

Acceptance for repairs is carried out by the inspector of the auto repair enterprise together with the customer's representative and is drawn up with an acceptance certificate. Cars received for repair from the warehouses of the objects of repair are sent to the external wash department.

After the completion of the repair, the car is handed over to the customer. Upon delivery of the car, an acceptance certificate is drawn up. The customer receives a copy of the acceptance certificate of the quality control department, the factory of the repaired machine, a technical and warranty certificate for the machine with instructions on its operation mode, an accompanying sheet and an inventory. The repair company is responsible for the quality of the repair and during warranty period is obliged to eliminate at his own expense all defects that have arisen through his fault. Dismantling and cleaning processes.

Disassembly- this is a set of operations for the separation of all repair objects into parts and assembly units in a certain sequence .. 60 ... 65% of the total labor intensity of these works account for 60 ... 65%.

Disassembly is one of the most important technological processes in auto repair production, which largely determines the efficiency of the functioning of an auto repair enterprise (ARP) and the quality of repairs. When disassembling vehicles and their assemblies, it is necessary to ensure the maximum safety of parts. The number of suitable parts, the laboriousness of restoration requiring repair largely depend on the organization and technology of disassembly work. Dismantling work organically combined with multi-stage cleaning. For this purpose, disassembly is carried out, as a rule, in several stages: preliminary disassembly of the assembly, unit and final disassembly (in one or more stages). Disassembly stages alternate with cleaning operations, which allows to improve the quality of cleaning of vehicle units and assemblies, improve working conditions for dismantlers, and also reduce the loss of small parts and standard fasteners during disassembly. Disassembly depending on the volume of production can be arranged at stationary posts or on production lines. The in-line form of organizing the disassembly process is progressive and allows to improve the quality of disassembly and reduce the cost of disassembly work. Disassembly tools- a set of production tools required for the implementation of the technological process. Disassembly technological equipment includes technological equipment, as well as technological equipment.

Aggregate (overhaul) auto repair- is it complete or partial replacement aggregates vehicle... Such repairs are necessary when the parts of the mechanism are worn out or badly damaged. Unlike current repairs, during the overhaul, faulty units are separated from the car. In their place, new working parts or old parts are installed after complete restoration.

Autotechcenter AVS Motors offers repair and comprehensive service cars of German production. We professionally repair cars related to concern VAG: Volkswagen, Audi and Skoda, as well Mercedes-Benz brands and BMW.

TYPES OF REPAIR OF VEHICLE UNITS AND UNITS

Service specialists will quickly and efficiently perform the following types of work:

• Engine repair. May include repairing the cylinder block, oil pump, gas distribution and cooling systems. In the process of aggregate repair of a car engine, some of the elements are replaced, the channels are cleaned and welding works.
• Gearbox repair (manual transmission, automatic transmission). Prerequisites for the overhaul of the gearbox may be a violation of the integrity of the housing, wear of bearings, couplings, gears, synchronizers and other parts. After the gearbox is restored, the transmission oil is replaced.
• Starter repair. Aggregate car repair allows you to eliminate starter problems such as sticking traction relay, breaks / short-circuits in the stator and armature winding, hanging of brushes, breakage of the coupling drive ring, weakening of the drive buffer spring, burning and shorting of the collector plates.
• Generator repair. Overhaul of the generator is necessary in case of significant defects in bearings, fasteners, pulley, charging circuit wires, voltage regulator, collector, diode bridge and other elements. Most common reasons unit repair: long-term operation car, corrosion, excessive loads.
• Transfer case repair. Typically performed when oil is leaking. May include changing oil and worn parts: oil seal, flange, bearings. After repair, the unit is installed on the vehicle, adjusted and centered.
• Steering rack repair. Aimed at eliminating problems such as leakage of the boot and rack housing; play, seizure or hard movement of the steering wheel; tapping the reiki. During the aggregate repair, the steering rack elements (shaft, pistons, bushings, rings, bolts, etc.) are changed or the entire unit is replaced.
• Suspension parts repair: transverse and trailing arms, stabilizers, shock absorbers, silent blocks, steering knuckles, ball bearings. AVS Motors Technical Center specializes in the aggregate repair of suspensions for VAG cars of various model years.

STAGES OF REGULATORY REPAIR OF THE CAR

Routine car repairs are carried out by means of a car fleet, and overhaul, as a rule, at repair enterprises - factories or workshops.

Troubleshooting current repair a car in a car fleet is carried out by means of simple repair operations associated with partial or complete disassembly of units and assemblies of a car or replacement of units that require overhaul.

Routine repair of the unit or assembly consists in replacing or repairing worn or damaged parts, except for the basic ones.

Typical work during current repairs are:

• on the engine - lapping and adjusting the thermal clearances of the valves, replacing piston rings, pistons, thin-walled liners, gaskets between the head and the cylinder block, repair of cracks and holes in the cooling jacket, etc.
• on the chassis - replacement brake linings on the brake pads, groove brake drums and brake linings on pads, replacing pins, pivot pivot bushings, springs, clutch discs, friction linings, gears in gearboxes, sliders and gearshift clamps, straightening and welding frame cracks, replacing springs, repairing and restoring body paint, repair devices for electrical equipment and engine power supply, etc.

Car repairs are performed using one of two methods:

• aggregate
• individual

With an individual repair method faulty units are removed from the car, repaired and installed again on the same car. With this method of repair, the units are not depersonalized, and the downtime of the car is determined by the duration of the repair of the most labor-intensive unit.

With the individual method, there is a significant duration of vehicle downtime for repair, as a result of which this method is used only in extreme cases when there is no stock of replacement units in the fleet.

Aggregate method of car repair consists in replacing faulty units with serviceable, previously repaired or new ones from the working capital. The unit (assembly) is replaced in the case when it takes more time to eliminate faults directly on the car than to replace it, and when the repair cannot be carried out between shifts. The faulty unit removed from the car is repaired, after which it enters the revolving fund.

The main advantage of the aggregate method is the reduction of the vehicle downtime for repairs, which is determined only by the time required to replace one or more faulty units or assemblies. Reducing the downtime for repairs leads to an increase in the technical readiness ratio of the fleet, and, consequently, an increase in its productivity and a decrease in the cost of transportation. Therefore, the Regulation on the maintenance and repair of rolling stock road transport Provides, as a rule, the aggregate method of car repair.

With the aggregate method of repair, the car is sent for overhaul in the event that its frame, cab ( truck), body ( passenger car) and most of the main units installed on it need this repair.

To carry out repairs by the aggregate method, it is necessary to have an irreducible fund of circulating units that satisfies the daily needs of the motor vehicle fleet. This fund is created both by the receipt of new units and fit units from decommissioned vehicles.

The scope of repairs carried out in the vehicle fleet using the aggregate method includes the current repair of the car, including the replacement and current repair of the main units. V bus fleets perform also medium repair the bus, determined by the need to restore the body.

Defective units requiring overhaul are sent to repair companies.

Repair in auto-maintenance enterprises can be organized on the basis of the use of ready-made spare parts, partial production and restoration of worn-out parts, and delivery of units and mechanisms for repair on the side. Repair of the car and units, as mentioned earlier, is performed exclusively on demand.

The need for maintenance can be determined:

• during the operation of the car and the subsequent request of the driver
• when inspecting the car by the duty mechanic at the checkpoint upon returning the car from the line
• during the first or second maintenance of cars - by a mechanic or foreman

The need for overhaul of a car that has passed the established mileage is determined by a special commission chaired by the chief engineer; the composition of the commission is approved by the head of the vehicle fleet.

After inspecting the car, the commission draws up an act on its technical condition and gives an opinion on putting it into overhaul or on further operation. At the same time, the approximate mileage is determined, after which the car must be inspected again. The results of the inspection of the commission are recorded in the appropriate section of the vehicle registration sheet. Defective units, assemblies and devices removed from the car are transferred (through an intermediate warehouse) to the appropriate production sites, where they are exchanged for serviceable ones. The site manager determines the nature and scope of the repair. The unit is sent for overhaul to a car repair plant by the decision of the head of production at the conclusion of the head of the production site, which is formalized in an act approved by the chief engineer.

The units are handed over for overhaul in accordance with the current technical conditions for cars and units handed over for repair. Units are accepted from the overhaul after being tested at the stands in accordance with the technical specifications for cars and units taken from the repair.

Each unit must have a passport issued by a repair company, and in the auto service, a “unit repair card” is issued for the unit, where data is entered characterizing its condition (new, repaired, etc.).

UNIT REPAIR

form of organization of repair of machines, with a cut, instead of eliminating defects in wear. parts are replaced entirely by units and assemblies using a revolving fund. Units and assemblies are restored at repair shops. A. r. speeds up the commissioning of machines.

Big Encyclopedic Polytechnic Dictionary. 2004 .

See what "AGGREGATE REPAIR" is in other dictionaries:

aggregate repair- A repair method in which defective components are replaced with new or previously repaired ones and in which the belonging of the restored components to a specific object is not preserved. [OST 45.152 99] aggregate repair Replacement … Technical translator's guide

Replacement of faulty ship machines, mechanisms, etc. devices with new or pre-repaired. On ships, aggregate repairs are electric generators, compressors, diesels, electric motors and steam boilers. Aggregate ... ... Marine Dictionary

Aggregate plant Type of JSC Foundation year 1967 Location ... Wikipedia

Aggregate repair method- 22. Aggregate repair method D. Aggregatorverfahren der Reparatur E. Unit ship repair method F. Methode de la reparatation en groupe According to GOST 18322 78 Source ...

REPAIR OF EQUIPMENT- in agriculture, a set of organizers. and technical measures taken to restore the serviceability or operability of technical. funds. Depending on the design features, the nature of the damage and the degree of wear ... ... Agricultural encyclopedic dictionary

equipment repair- in agriculture, a set of organizational and technical measures carried out in order to restore serviceability or working capacity technical means... Depending on the design features, the nature of the damage and ... ... Agriculture... Big encyclopedic dictionary

Repair of military equipment- a set of works to maintain and restore the serviceability or performance of samples (systems, complexes) of weapons, military and special equipment, and the restoration of the resources of products or their components; essential element technical ... ... Frontier vocabulary

REPAIR OF THE SHIP- a set of works to restore the ship's working condition. R. perform according to a planned warning. sist. (PPP), providing scheduled repairs define. species produced with a given sequence and frequency. To main. species ... ... Marine encyclopedic reference

GOST 24166-80: System of maintenance and repair of ships. Ship repair. Terms and Definitions- Terminology GOST 24166 80: System of maintenance and repair of ships. Ship repair. Terms and definitions original document: 15. Emergency ship repair D. Havarie Reparatur des Schiffs E. Damage ship repair F. Réparation (du navire) ... ... Dictionary-reference book of terms of normative and technical documentation

exploitation- 3.2 operation: The stage of the life cycle of a product (slide), at which its quality (operable state) is implemented, maintained and restored.