Car mechanic 2nd category. Car repairman. Basic Sheet Metal Bending Techniques
Profession – 7231.2 Automotive mechanic
Qualification – 1-2 digits
Qualifications to a locksmith of the 1st category
Mustknow: basic methods for performing work on disassembling individual simple constituent units; purpose and rules for the use of locksmith tools and instrumentation that are used; name and marking of metals, oils, fuel, brake fluid, detergents.
Task and responsibilities: performs dismantling of simple components and assemblies of vehicles, cleaning from dirt, washing after dismantling of components and assemblies of vehicles, deburring, threading, drilling holes, lubricating parts. Participates in repairs under the guidance of a more highly qualified locksmith.
Qualification requirements for a locksmith 2 category
Must know: basic information about the structure of cars; assembly order of simple constituent units; techniques for insulating and soldering wires; ways to perform fastening work and the scope of the first maintenance; purpose and rules for the use of the most common universal and special devices and instrumentation; basic mechanical properties of processed materials; appointment and use of cooling and brake fluids, oils and fuels; rules for the use and use of pneumatic and power tools; basic information about the system of tolerances and landings, qualifications and roughness parameters; fundamentals of electrical engineering and metal technology in the scope of the work performed; legal and organizational bases of labor safety; basics of labor safety in the industry; fire safety, electrical safety, occupational health, industrial sanitation, issues of medical examinations; providing first aid to victims of accidents, environmental protection; classification, physico-chemical, mechanical, technological properties, markings and the branch of application of metals, alloys, dielectrics, fuels and lubricants; basic rules for reading drawings, general concepts about assembly drawings, working drawings for the manufacture of parts, technical measurements, general information about the schemes; fundamentals of electrostatics, D.C., electromagnetism, alternating current, transformers, electrical machines, rules for using electrical measuring instruments; the concept of tolerances and landings, the rules and procedures for using tools and instruments for measuring linear and angular quantities,optical, pneumatic and electrical appliances; fundamentals of mechanical engineering - general information on theoretical mechanics, resistance of materials, machine parts, heat engineering, hydraulics, aerodynamics; modern models economics, goods, money, their functions and properties, material production, the market and the conditions for its functioning, microeconomics, enterprise funds, national profit; the concept and features of the rule of law; Constitutional foundations of Ukraine; civil law and relations that are regulated by it; protection of economic rights and interests; consideration of economic disputes; administrative guilt and administrative responsibility; legal protection of nature; general principles of sectoral economy and enterprise; economic, financial and commercial activities of the enterprise; use of information and computer technologies for production automation; control systems based on computer technology.
Task and responsibilities: performs work on the dismantling of cargo and cars, (except special and diesel), buses with the number seats for passengers up to 22, trailers, semi-trailers and motorcycles. Carries out repair, assembly of simple connections and components of cars with the replacement of individual parts and parts. Removes and installs simple lighting fixtures, insulates and solders wires. Performs fastening work according to the first maintenance work schedule, eliminates the detected minor malfunctions. Performs metalwork processing of parts according to 12 - 14 qualifications using metalwork tools and instrumentation. Carries out works of medium complexity in the repair and assembly of cars under the guidance of a more highly qualified locksmith.
0b general professional requirements
Must:
a) rationally and effectively organize work in the workplace;
b) adhere to the norms of the technological process;
c) prevent marriage at work;
d) know and comply with the requirements of regulatory acts on labor and environmental protection, adhere to the norms, methods and techniques of safe work;
e) use, if necessary, means of preventing and eliminating natural and unforeseen negative phenomena (fires, accidents, floods, etc.);
g) know information technologies.
Requirementsto the educational level of persons who will study in the vocational education system
Basic or incomplete basic general secondary education. No work experience requirements.
Sphere of professional use of the graduate
Maintenance and repair of motor vehicles.
Specific requirements:
Age: at the end of the study period - at least 18 years.
Gender: female, male.
Medical restrictions - according to the conclusion of the VTEC on unsuitability for work in this profession.
Test questions:
What are the main stages in the development of the global automotive industry.
Who owns the palm in creating a car with an internal combustion engine?
name automobile factories in Ukraine.
What is the role and importance of the profession of a car mechanic?
List the basic qualities that a car mechanic should have.
What should a car mechanic of the 1st category know and be able to do?
What should a car mechanic of the 2nd category know and be able to do?
Plan - abstract
conducting a lesson on Special technologies.
Topic #2 « plumbing a business».
The topic of lesson number 3-4. Surface marking.
Purpose of the lesson: to form in students the basic concepts of marking surfaces.
educational goal:
Lesson type- a lesson in presenting new material.
Main part of the lesson– 70 min.
Study questions: 1. The essence of the marking process, tools and devices for marking.
2. Preparation for marking and the sequence of drawing lines. 3. Marriage during marking and labor protection.
1. The concept of markup. In order to obtain a part of the appropriate shapes and sizes during processing, the workpiece is marked out before processing. The markings are applied to the surface of the workpiece with lines (marks) that determine, according to the drawing, the contours of the part or the places to be processed.
Markings are planar and spatial (volumetric).
Planar marking it is used in the processing of parts usually made from sheet material, limited to applying scratches only on one plane.
Spatial markup is used not only for marking individual surfaces of a part located in different planes and at different angles to each other, but also link the marking of these individual surfaces to each other.
Marking devices. On the marking plate, the parts to be marked are installed and all fixtures and tools are placed. The top, working surface and sides of the slab are carefully processed on planers and then scraped.
Before proceeding with the marking, the workpiece is installed and aligned on the marking plate, using various linings, prisms and jacks for this.
Instruments.Scribers are used to apply marks on the surface to be marked using a ruler, square, template. Scribers must be sharply sharpened. To avoid tempering during sharpening, the tip of the scriber is periodically cooled in a liquid.
Punch for drawing recesses (cores) on pre-marked lines. Recesses are made so that the lines are clearly visible and not erased during the processing of the part. For center punches for marking the centers of holes to be drilled, the point is sharpened at an angle of 75 ° and checked with a template.
Used to draw straight lines rulers. Rulers with beveled ribs (edges) provide higher marking accuracy.
squares necessary for drawing perpendicular and parallel lines, while the square is moved to the desired distance.
Center finders And center markers used to find the centers of circles. The simplest center finder is a triangle with a ruler attached to it, which is the bisector of a right angle.
Protractors And goniometers used for marking angles and slopes. The specified angle is fixed by fixing the ruler with a hinged screw.
compasses necessary for marking circles and arcs, for dividing segments, circles and for geometric constructions. Compasses are also used to transfer dimensions from measuring rulers to a part.
Reismas- the main tool for spatial marking, drawing parallel vertical and horizontal lines, as well as checking the installation of parts on the plate.
Preparing formarkup. Before marking it is necessary:
Clean the surface of the workpiece from dust and dirt;
Carefully inspect the workpiece for defects and take measures to eliminate them during further processing;
Examine the drawing of the part to be marked, Special attention pay for allowances for processing;
Determine the base surfaces of the workpiece, from which the dimensions should be set aside during the marking process;
Prepare surfaces for painting.
For painting surfaces use:
Chalk, diluted in water, is applied with a paint brush or spray gun;
Dry chalk, which is used to rub marked surfaces;
A solution of copper sulfate, while a thin layer of copper is deposited on the surface of the workpiece. Applies only to steel and cast iron blanks;
A solution of shellac in alcohol with the addition of fuchsin is used only for precise marking of the treated surfaces of small products;
Quick-drying varnishes and paints are used to coat the surfaces of large workpieces.
2. The sequence of drawing marking lines: first, horizontal, then vertical, then inclined, and last - circles, arcs and roundings.
straight lines applied with a scriber, which should be inclined away from the ruler (by 75-80°) and in the direction of movement of the scriber (by 75-80°).
risk lead only once. When drawing lines again, it is impossible to get exactly to the same place. If the line is drawn poorly, it is painted over and drawn again.
Markup examples:
- markup according to the drawing(see the order of the exercises);
- template markup usually used in the manufacture of large batches of parts of the same shape and size, or small batches, but complex products;
- pencil markup produced on billets of aluminum and duralumin.
It is not allowed to mark aluminum and duralumin parts with a scriber, as this destroys the protective layer and creates conditions for the appearance of metal corrosion.
3. Marriage when marking. The most common types of marriage when marking:
Mismatch between the dimensions of the marked workpiece and the drawing data, made due to the inattention of the marker or due to the inaccuracy of the marking tool;
Inaccuracy of setting the thickness gauge to the desired size. The reason is the inattention or inexperience of the marker, the dirty surface of the plate or workpiece;
Careless installation of the workpiece on the slab as a result of inaccurate alignment of the slab;
Installing the workpiece on an unaligned plate.
Safety engineering.
When performing marking work, the following must be observed: labor protection rules:
Installation of blanks (parts) on the stove and removal from the stove must be done only in gloves;
Workpieces (parts), fixtures should not be securely installed on the edge of the plate, but closer to the middle;
Before installing blanks (parts) on the plate, it should be checked;
During operation, it is imperative to put on safety plugs or special caps on the free (unused) sharply sharpened ends of the scribers.
TO control questions:
1. Why do marking lines need to be applied only once?
2. How are the surfaces of the marked workpieces prepared?
3. How to find the center of a circle on a flat workpiece?
4. Name the types and causes of marriage when marking.
5. What is the markup for?
6. What tool is used for marking?
7. Labor protection during marking.
Plan - abstract
conducting classes on Special technologies.
Topic number 2. "Plumbing".
Theme of the lesson number 5 - 6. Metal cutting.
Purpose of the lesson: to form in students the basic concepts of cutting metal.
educational goal: instill in students a conscientious attitude to the study of educational material.
Main part of the lesson– 70 min.
Study questions: 1. The concept of cutting and a tool for cutting. 2. Technique and cutting techniques. 3. Labor protection during felling.
conceptabout wheelhouse. Cutting is used to remove a layer of metal, cutting blanks, separating metal into parts.
The processing accuracy achieved during felling is 0.5-1.0 mm.
Chisel is the simplest cutting tool. The shape of the cutting part (blade) of any metal-cutting tool is a wedge sharpened with certain angles.
The action of a wedge-shaped tool on the metal being processed varies depending on the position of the wedge axis and the direction of the applied force. There are two main types of wedge operation:
The axis of the wedge and the direction of the force are perpendicular to the workpiece surface. In this case, the workpiece is cut;
The axis of the wedge and the direction of action of the force form an angle of less than 90° with the workpiece surface. In this case, chips are removed from the workpiece.
Cutting tool.
Cold chisel is a rod made of tool carbon steel, consisting of three parts:
Working, having a wedge-shaped cutting part at the end, sharpened at a certain angle
Impact, tapering upward and rounded top;
Medium, designed to grasp the tool with a hand.
For hard materials (high carbon steel, bronze, cast iron) 70°;
For medium hard materials (carbon steel) 60°;
For soft materials (copper, brass) 45°;
For aluminum alloys 35°.
Kreuzmeysel differs from a chisel in a narrower cutting edge and is designed for cutting narrow grooves, keyways, etc.
Materials (U7, U8, 4KhS, 6KhS, THF, etc.) for the manufacture of crosscuts and sharpening angles, hardness of the working and impact parts are the same as for the chisel.
For cutting profile grooves - semicircular, dihedral, etc. - special crosscuts are used, called groovers, differing from the cross-meisel only in the shape of the cutting edge.
Sharpening of crosscuts and chisels is carried out on a grinding machine. Strong pressure should not be allowed on the tool being sharpened, as this leads to overheating and, as a result, to the release of the cutting edge.
Locksmith hammers with a round face:
- No. 1 weighing 200 g are used for tool work, as well as for marking and editing;
- No. 2 weighing 400 g, No. 3 - 500 g and No. 4 - 600 g - for general locksmith work;
- No. 5 weighing 800 g and No. 6-1000 g - are rarely used.
Locksmith hammers with a square face:
- No. 1 weighing 50 g, No. 2 - 100 g and No. 3 - 200 g are used for metalwork and tool work;
- No. 4 weighing 400 g, No. 5 - 500 g and No. 6 - 600 g - for locksmith work: felling, bending, riveting, etc.;
sledge hammers weighing from 4 to 16 kg are used for rough and hard work.
In addition to conventional steel hammers, in some cases, for example when body work, so-called soft hammers with inserts made of red copper, rubber or lead are used.
Cutting technique. For cutting, use the strongest vise possible. The correct position of the body, holding (grip) of the tool during cutting are of great importance.
Cutting methods:
- metal cutting - the chisel is set vertically and the cutting is carried out with a shoulder blow;
- cutting blanks from sheet metal carried out on the plate along the marking lines of the contour of the manufactured part;
- cutting of sheet material, as a rule, lead according to the level of the vise jaws;
- felling by marking risks lead strictly according to marking risks. The first blow is applied with the position of the chisel parallel to the vise jaws. Further felling is performed with the chisel tilted by 25-30°;
- felling wide planes is a time-consuming and inefficient operation, used when it is impossible to plan the workpiece;
3. Labor protection. When cutting metals, the following labor protection rules should be observed:
The handle of a manual machinist's hammer must be well fixed and not cracked; when cutting with a chisel and a cross-cutting tool, it is necessary to use goggles;
When cutting hard and brittle metal, it is imperative to use a fence: mesh, shield;
To protect the hands from damage (in an uncomfortable position, as well as during the training period), a safety rubber washer should be put on the chisel, and a safety visor should be put on the hand.
When working with pneumatic tools:
Before starting work, blow the pneumatic hammer (chisel) with compressed air;
Turn on the pneumatic tool only after setting it to the working position; idling tool is not allowed;
When connecting a hose compressed air must be disabled;
Do not hold a pneumatic hammer (chisel) by the hose or the working part of the tool.
TO control questions.
1. How is a metalwork chisel and a cross cutter sharpened for cutting various materials?
2. How does the taper angle affect the felling process?
3. What mechanized tools are used when cutting metals?
4. List the main techniques for cutting metals.
5. What is metal cutting and what tool is used for cutting.
6. Tell us the rules of labor protection when cutting various metals.
Plan - abstract
conducting a lesson on Special technologies.
Topic #2 "Plumbing".
The topic of lesson 7-8. Editing, straightening and bending of metal.
Purpose of the lesson: to form in students the basic concepts of straightening, straightening and bending metal
educational goal: instill in students a conscientious attitude to the study of the material presented.
The type of lesson is a lesson in presenting new material.
Main part of the lesson– 70 min
Study questions: 1. General information about metal straightening, tools and devices for performing this work, metal straightening techniques of various profiles.
2. General information about metal bending, metal bending techniques of various profiles and labor protection when straightening, straightening and bending metal.
General information. Editing and straightening are operations for straightening metal, blanks and parts that have dents, warping, curvature, etc. Editing and straightening have the same purpose, but differ in the methods of execution and the tools and devices used.
Right Stove must be sufficiently massive (weighing at least 80-150 times the weight of the hammer). The plates are installed on metal and wooden supports, which should provide, in addition to stability, a horizontal position.
Leveling grandmas used for straightening (straightening) hardened parts.
The working part of the surface can be cylindrical or spherical with a radius of 150-200 mm.
Hammers for edits are used with a round smooth polished head (hammers with a square head leave traces in the form of nicks). Hammers with plug-in heads made of soft materials are used when dressing parts with a finished surface and parts made of non-ferrous metals and alloys.
Ironers(wooden or metal bars) are used for straightening thin sheet and strip metal. Editing technique. The curvature of the parts is checked by eye or by the gap between the plate and the part laid on it. When editing, it is important to choose the right places to hit. The impact force should be commensurate with the amount of curvature and gradually decrease as you move from the greatest bend to the smallest.
Editing is carried out on a plate or reliable linings, which exclude the possibility of the part slipping on impact.
Editing of strip metal. The strip is placed on a regular plate so that its plane lies on the plate with a convexity upwards, in contact with it at two points. Impacts are applied to the convex parts, adjusting the impact force depending on the thickness of the strip and the magnitude of the curvature. As the strip is straightened, the impact force is weakened and more often turned over until it is completely straightened. If there are several bulges, then the extreme ones are straightened first, and then the middle ones.
Straightening of bar metal. The rod is placed on the anvil so that the curved part is bulge up. Hammer blows are applied on the convex part from the edges of the bend to the middle part, adjusting the impact force depending on the diameter of the rod and the size of the bend. Finish editing with light strokes and turning the bar around its axis.
Straightening of strip metal with spiral curvature. One end of the workpiece is fixed in a metal vise, and the other is clamped in a hand vise. Then, inserting the lever between the jaws of the hand vise, turn the lever with a uniform force until the spiral curvature is fully straightened.
Sheet metal straightening. It is impossible to strike with a hammer on a convex place, since from this the bulges will not only not decrease, but, on the contrary, will increase. It is necessary to strike with a hammer from the edge of the sheet towards the center of the bulge. Under hammer blows, the material around the bulge will stretch, and the bulge will gradually disappear. As you approach the center of the bulge, the blows are applied more often and weaker. If the workpiece has a waviness along the edges and an even middle, the editing is carried out by striking from the middle towards the waviness.
Thin sheets they rule with light wooden hammers (mallets), copper, brass or lead hammers , and very thin sheets are placed on a flat plate and smoothed with metal trowels or wooden blocks.
On the prisms perform editing of short strip material, striking with a hammer on convex places and curvatures. Strongly resilient, as well as very thick workpieces are corrected on two prisms, striking through a soft pad to avoid nicks on the product.
If the forces developed by the hammer are insufficient for straightening, manual or mechanical presses are used.
Straightening called straightening hardened parts. Straightening accuracy can be achieved within 0.01-0.05 mm.
Editing a hardened square. If the angle as a result of the curvature has become less than 90 °, then hammer blows are applied at the top of the inner corner, if the angle has become more than 90 ° - the top of the outer corner.
In the case of warpage of the product along the plane and along a narrow rib, straightening is performed separately - first along the plane, and then along the rib.
Shaft dressing performed on manual or mechanical presses. The deflection value is determined here, in the centers, using an indicator.
To eliminate residual stresses in the places of straightening, the critical shafts are slowly heated for 30-60 minutes. to a temperature of 400-500°C and then slowly cooled.
Hardening is made by laying a curved shaft on a flat plate with a bulge down and applying frequent and light blows to the surface of the shaft with a small hammer.
Heated edit. Profile metal (corners, channels, tees, I-beams), hollow shafts rule with heating of a curved place (bulge) blowtorch or gas welding torch until cherry red; the parts of the product surrounding the bulge are cooled with raw asbestos or wet ends.
Features of straightening welded products. During cold straightening of welded products, a section of the product that has warping or a leash is subjected to impacts, as a result of which the metal in this area is brought into a state of fluidity and the product begins to gradually take on the desired shape.
The rules for applying hammer blows during cold straightening of welded products are the same as for straightening strip and sheet material.
Labor protection when straightening metal:
Work with gloves;
Work only with a serviceable tool (correctly mounted hammers, no cracks on the handles And chips on hammers).
3. General concepts of metal bending. In the process of bending, on the outside of the part, at the place of bending, the metal fibers are stretched, their length increases; on the inside, on the contrary, the fibers are compressed, their length decreases.
Receipt the right sizes parts after bending is ensured by the correct determination of the length of the workpiece, which is found by counting the length of the center line according to the drawing of the part. To do this, determine the dimensions of the straight sections, calculate the lengths of the curves and summarize the results.
The total length of the workpiece when bending with rounding is calculated by the formula:
Basic sheet metal bending techniques:
Bending of a rectangular bracket;
Bending a double square in a vice;
Clamp bending;
Eye bending with round-nose pliers;
Bending of a cylindrical sleeve along the mandrel: first, one side of the part is bent along the mandrel, and then blows are applied to the second, then both ends are connected;
Bending in fixtures: a hole of the required loop diameter is drilled in a steel cube, and a groove is sawn through the thickness of the sheet material. Having inserted the workpiece into the groove, it is bent into the hole with hammer blows, forming a loop.
Hot pipe bending. During hot bending with filler, the pipe is annealed, marked, and then one end is closed with a wooden cork. To prevent collapse and cracking during bending, the pipe is filled with fine dry sand. After filling with sand, the second end of the pipe is clogged with a plug, which should have holes for the exit of gases formed during heating of the pipe bends. The radius of curvature when bending pipes is taken not less than three pipe diameters, and the length of the heated part depends on the bending angle and pipe diameter. Thin-walled pipes with a diameter of more than 30 mm are bent only in a heated state with fillers. After the bending is completed, the corks are knocked out and sand is poured out. Poor, loose filling of the pipe with sand, insufficient or uneven heating before bending leads to the formation of folds or ruptures.
Cold bending of pipes performed using various devices. The simplest device for bending pipes with a diameter of up to 10-15 mm in a free state is a plate with holes, in which pins are installed in appropriate places, which serve as stops during bending.
Pipes of small diameters (up to 40 mm) with large radii of curvature are bent in a cold state using simple hand tools with a fixed mandrel. The bending mandrel is attached to the workbench on both sides with brackets. The bending tube is inserted between the bending mandrel and the clamp, clamped and bent by hand along the groove-like recess of the bending mandrel.
Bending copper and brass pipes. Copper or brass pipes to be cold-bent are filled with molten rosin. After bending, rosin is smelted starting from the ends of the pipe to avoid rupture.
Copper pipes to be cold-bent are annealed at 600-700°C and cooled in water. The filler for bending copper pipes in a cold state is rosin, and in a heated state - sand.
Brass pipes to be cold-bent are annealed at 600-700°C and cooled in air. Fillers are the same as for bending copper pipes.
Duralumin pipes are annealed before bending at 350-400°C and cooled in air.
bending pipe ring produced on a three-roll bending machine without filler.
Pipes that do not have dents, bulges and folds are considered correctly bent.
When bending pipes, the following conditions must be observed:
Carefully monitor the uniformity of the stretching of the outer wall and the fit of the inner wall of the pipe;
Keep in mind that the outer wall of the pipe is easier to pull out than the landing of the inner wall;
Bending the pipe smoothly, without jerks: the folds that appear are ruled by a hammer.
Expanding (rolling) pipes consists in expanding (rolling out) the ends of the pipes from the inside with a special tool (rolling). To do this, the rolling device is clamped in a bench vise. The pipe is inserted into a hole corresponding in diameter, and then the end of the pipe is flared to the required dimensions with hammer blows on the mandrel.
Types and causes of marriage during bending.
When bending metal, marriage most often appears in oblique bends and mechanical damage to the machined surface as a result of incorrect marking or fastening of the part in a vice above or below the marking line, as well as improper impact.
Labor protection during bending:
Workpieces must be firmly fixed in a vice or other devices;
Work only on serviceable equipment and serviceable tools;
Before starting work on bending machines, read the operating instructions and safe working practices on this machine;
Work in mittens and buttoned robes.
Test questions.
1. How strip, bar and sheet material is corrected.
2. What are the features of flame straightening of metals.
3. Tell us about the features of straightening welded products.
4. Tell us about the features of straightening hardened products.
5. What and how pipes are bent in a cold state?
6. What and how hot pipes are bent.
7. How to bend pipes into a ring?
8. What are the features of non-ferrous pipe bending?
Plan - abstract
conducting classes on Special technologies.
| Instructions for the position " Car mechanic of the 2nd category", presented on the site, complies with the requirements of the document - "DIRECTORY qualification characteristics occupations of workers. Issue 69. Automobile transport", which is approved by the order of the Ministry of Transport and Communications of Ukraine dated February 14, 2006 N 136. With changes approved by the order of the Ministry of Transport and Communications of Ukraine dated September 4, 2008 N 1097. The status of the document is "valid". |
|
Preface to job description
0.1. The document comes into force from the moment of its approval.
0.2. Document developer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
0.3. Document approved: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
0.4. Periodic verification of this document is carried out at intervals not exceeding 3 years.
1. General Provisions
1.1. The position "Mechanic for the repair of cars of the 2nd category" belongs to the category "Workers".
1.2. Qualification requirements - complete general secondary education and vocational training at work. Advanced training and work experience in the profession of a car repairman of the 1st category - at least 0.5 years.
1.3. Knows and applies:
- basic information about the structure of cars;
- the procedure for compiling simple constituent units;
- techniques for insulating and soldering wires;
- ways to perform fastening work and the scope of the first maintenance;
- purpose and rules for the use of the most common universal and special devices and instrumentation;
- basic mechanical properties of processed materials;
- appointment and use of cooling and brake fluids, oils and fuels;
- rules for the use and use of pneumatic and power tools;
- basic information about the system of tolerances and landings, qualifications and roughness parameters;
- fundamentals of electrical engineering and metal technology in the scope of the work performed.
1.4. A car repairman of the 2nd category is appointed to the position and dismissed by order of the organization (enterprise / institution).
1.5. A car mechanic of the 2nd category reports directly to _ _ _ _ _ _ _ _ _ _ .
1.6. A car repairman of the 2nd category directs the work of _ _ _ _ _ _ _ _ _ _ .
1.7. A car repairman of the 2nd category during his absence is replaced by a duly appointed person who acquires the appropriate rights and is responsible for the proper performance of the duties assigned to him.
2. Description of work, tasks and job responsibilities
2.1. Performs dismantling of trucks and cars (except special and diesel), buses with seats up to 22 passengers, trailers, semi-trailers and motorcycles.
2.2. Carries out repair, compilation of simple connections and constituent units of cars with the replacement of individual parts and details.
2.3. Removes and installs simple lighting fittings, insulates and solders wires.
2.4. Performs fastening work according to the rules of the first maintenance work, eliminates the identified minor malfunctions.
2.5. Performs metalwork processing of parts according to 12-14 qualifications using metalwork tools and instrumentation.
2.6. Performs work of medium complexity in the repair and assembly of vehicles under the guidance of a more highly qualified locksmith.
2.7. Knows, understands and applies the current regulatory documents relating to its activities.
2.8. Knows and fulfills the requirements of regulatory acts on labor and environmental protection, complies with the norms, methods and techniques for the safe performance of work.
3. Rights
3.1. The Tier 2 Automotive Repairman has the authority to take action to prevent and remedy any irregularities or non-conformities.
3.2. A car repairman of the 2nd category has the right to receive all social guarantees provided for by law.
3.3. A car repairman of the 2nd category has the right to demand assistance in the performance of his official duties and exercise of rights.
3.4. A car repairman of the 2nd category has the right to demand the creation of organizational and technical conditions necessary for the performance of official duties and the provision of the necessary equipment and inventory.
3.5. A car repairman of the 2nd category has the right to get acquainted with the draft documents relating to his activities.
3.6. A car repairman of the 2nd category has the right to request and receive documents, materials and information necessary for the performance of his duties and orders of the management.
3.7. A car mechanic of the 2nd category has the right to improve his professional qualifications.
3.8. A car repairman of the 2nd category has the right to report all violations and inconsistencies identified in the course of his activities and make proposals for their elimination.
3.9. A car repairman of the 2nd category has the right to get acquainted with the documents defining the rights and obligations for the position held, the criteria for assessing the quality of the performance of official duties.
4. Responsibility
4.1. A car mechanic of the 2nd category is responsible for non-fulfillment or untimely fulfillment of the duties assigned by this job description and (or) non-use of the rights granted.
4.2. A car mechanic of the 2nd category is responsible for non-compliance with the rules of internal labor regulations, labor protection, safety, industrial sanitation and fire protection.
4.3. A car repairman of the 2nd category is responsible for disclosing information about an organization (enterprise / institution) that is a trade secret.
4.4. A car mechanic of the 2nd category is responsible for non-fulfillment or improper fulfillment of the requirements of the internal regulatory documents of the organization (enterprise / institution) and the legal orders of the management.
4.5. A car repairman of the 2nd category is responsible for offenses committed in the course of his activities, within the limits established by the current administrative, criminal and civil legislation.
4.6. A car repairman of the 2nd category is responsible for causing material damage to an organization (enterprise / institution) within the limits established by the current administrative, criminal and civil legislation.
4.7. A car mechanic of the 2nd category is responsible for the misuse of the granted official powers, as well as their use for personal purposes.
5. Examples of work
5.1. Cars - removal and installation of doors, mudguards, steps, buffers, clamps, side brackets, fenders trucks, towing devices, license plates.
5.2. Crankcases, brackets, clamps - checking fastening, tightening.
5.3. Wheels - removal and installation.
5.4. Dump truck body lifting mechanisms - removal, installation.
5.5. Water pumps, fans, compressors - removal, installation.
5.6. Breakers-distributors - stripping contacts.
5.7. Plafonds, rear lights, candles, sound signals - removal, installation.
5.8. Instruments and assemblies of electrical equipment - checking fastening when maintenance.
5.9. Wires - replacement, soldering, insulation.
5.10. Gaskets - manufacturing.
5.11. Springs - lubrication of leaf springs.
5.12. Air filters, oil filters for fine and coarse cleaning - replacement.
§ 99. Car repairman of the 1st category
Job Description. Disassembly of simple car components. Chisel cutting, hacksaw cutting, filing, deburring, washing, threading, drilling holes on the jig in the car, cleaning from dirt, washing after disassembly and lubricating parts. Participation in repairs under the supervision of a highly qualified locksmith.
Must know: basic techniques for disassembling individual simple units; the purpose and rules for the use of the locksmith and measuring instruments used; name and marking of metals, oils, fuel, brake fluid, detergent compositions.
Work examples
1. Cars - draining water from the cooling system, fuel from tanks, brake fluid from the hydraulic brake system.
2. Air and oil filters for fine and coarse cleaning - disassembly.
§ 100. Car mechanic of the 2nd category
Job Description. Dismantling of trucks, except for special and diesel engines, cars, buses up to 9.5 m long and motorcycles. Repair, assembly of simple connections and components of cars. Removal and installation of simple lighting fittings. Cutting, splicing, insulating and soldering wires. Performing fixing work during the first and second maintenance, elimination of identified minor faults. Locksmith processing of parts according to 12 - 14 qualifications using fixtures, locksmith and control and measuring tools. Performing work of medium complexity in the repair and assembly of vehicles under the guidance of a more highly qualified locksmith.
Must know: basic information about the structure of cars and motorcycles; assembly order of simple nodes; techniques and methods for cutting, splicing, insulating and soldering electrical wires; main types of electrical and insulating materials, their properties and purpose; ways to perform fastening work and the scope of the first and second maintenance; purpose and rules for the use of the most common universal and special devices and instrumentation; basic mechanical properties of processed materials; appointment and use of cooling and brake fluids, oils and fuels; rules for the use of pneumatic and power tools; system of admissions and landings; quality and roughness parameters; fundamentals of electrical engineering and metal technology in the scope of the work performed.
Work examples
1. Cars - removal and installation of wheels, doors, mudguards, steps, buffers, clamps, side brackets, fenders of trucks, tow hooks, license plates.
2. Crankcases, wheels - check, fastening.
3. Valves - disassembly of guides.
4. Brackets, clamps - manufacturing.
5. Tipper mechanisms - removal.
6. Water pumps, fans, compressors - removal and installation.
7. Plafonds, rear lights, ignition coils, candles, sound signals - removal and installation.
8. Devices and units of electrical equipment - checking, fastening during maintenance.
9. Wires - replacement, soldering, insulation.
10. Gaskets - manufacturing.
11. Springs - lubrication of leaf springs with their unloading.
12. Candles, breakers-distributors - stripping contacts.
13. Air filters, oil filters for fine and coarse cleaning - disassembly, repair, assembly.
§ 101. Car mechanic of the 3rd category
Job Description. Dismantling of diesel and special trucks and buses over 9.5 m in length. Repair, assembly of trucks, except for special and diesel ones, cars, buses up to 9.5 m in length. Repair and assembly of motorcycles, scooters and other motor vehicles. Performing fastening work on threaded connections during maintenance with the replacement of worn parts. Maintenance: cutting, repair, assembly, adjustment and testing of aggregates, assemblies and devices of medium complexity. Dismantling of aggregates and electrical equipment of vehicles. Identification and elimination of malfunctions in the operation of units, mechanisms, devices of cars and buses. Connection and soldering of wires with devices and electrical equipment. Locksmith processing of parts according to 11 - 12 qualifications using universal devices. Repair and installation of complex units and assemblies under the guidance of a highly qualified locksmith.
Must know: device and purpose of nodes, assemblies and devices of medium complexity; rules for assembling cars and motorcycles, repair of parts, assemblies, assemblies and devices; basic techniques for disassembling, assembling, removing and installing devices and electrical equipment; adjustment and fixing works; typical faults electrical equipment systems, methods for their detection and elimination, purpose and basic properties of materials used in the repair of electrical equipment; basic properties of metals; purpose of heat treatment of parts; the device of universal special adaptations and control and measuring tools; system of admissions and landings; quality and roughness parameters.
Work examples
1. Passenger cars, trucks, buses of all brands and types - removal and installation of gas tanks, crankcases, radiators, brake pedals, mufflers, replacement of springs.
2. Cardan shafts, brake drum trunnions - adjustment during assembly.
3. Fans - disassembly, repair, assembly.
4. Cylinder heads, cardan joints - check, fastening.
5. Cylinder heads of the dumping mechanism - removal, repair, installation.
6. Engines of all types, rear, front axles, gearboxes, except for automatic ones, clutches, cardan shafts - disassembly.
7. Contacts - soldering.
8. Wings of passenger cars - removal, installation.
9. Water pumps, oil pumps, fans, compressors - disassembly, repair, assembly.
10. Windings of insulating devices and electrical equipment - impregnation, drying.
11. Relay-regulators, ignition distributors - disassembly.
12. Valve seats - cone processing, lapping.
13. Headlights, ignition locks, signals - disassembly, repair, assembly.
§ 102. Car mechanic of the 4th category
Job Description. Repair and assembly of diesel, special trucks, buses, motorcycles, imported cars, pickup trucks and minibuses. Dismantling, repair, assembly of complex units, units and devices and their replacement during maintenance. Running in cars and buses of all types at the stand. Identification and elimination of defects, malfunctions in the process of adjustment and testing of units, assemblies and devices. Disassembly of parts after disassembly and washing. Locksmith processing of parts according to 7 - 10 qualifications using universal devices. Static and dynamic balancing of parts and assemblies of complex configuration, drawing up defective lists.
Must know: arrangement and purpose of diesel and special trucks and buses; electrical and wiring diagrams cars; technical conditions for the assembly, repair and adjustment of units, components and devices; methods for identifying and ways to eliminate complex defects found in the process of repair, assembly and testing of units, assemblies and devices; rules and test regimes, specifications for testing and delivery of units and assemblies; purpose and rules for the use of complex test facilities; device, purpose and rules for the use of control and measuring instruments; design of universal and special devices; the frequency and volume of maintenance of electrical equipment and the main components and assemblies of vehicles; system of admissions and landings; qualifications and roughness parameters.
Work examples
1. Engine cylinder blocks - repair and assembly with a crank mechanism.
2. Camshafts - installation in the block.
3. Generators, stators, speedometers - disassembly.
4. Hydraulic lifts of the dumping mechanism - test.
5. Torque converters - inspection and disassembly.
6. Cylinder head diesel engine- assembly, repair, leak test, installation and fastening.
7. Engines of all types - repair, assembly.
8. Front wheels - adjustment of the angle of convergence.
9. Pads brake drums, shock absorbers, differentials - repair and assembly.
10. Compressors, brake valves - dismantling, repair, assembly, testing.
11. Automatic transmissions - disassembly.
12. Mechanical gearboxes - assembly, bench testing.
13. Dump truck bodies, dump truck mechanisms - installation, adjustment of lifting and lowering.
14. Front and rear clutch axles, cardan shafts - repair, assembly and adjustment.
15. Axles forward - check and editing under a press in a cold state.
16. Main bearings - replacement of liners, scraping, adjustment.
17. Pistons - selection by cylinders, assembly with connecting rods, change of piston rings.
18. Instruments and assemblies of electrical equipment are complex - check and adjustment during maintenance.
19. Reducers, differentials - repair, assembly, testing and installation in the rear axle housing.
20. Relay-regulators, ignition distributors - dismantling, repair.
21. Oil seal crankshafts, clutch hubs, steering ball pins, rotary cams - replacement.
22. Hydraulic and pneumatic brakes - disassembly.
23. Steering - repair, assembly, adjustment.
24. Connecting rods with pistons - check on the device.
25. Connecting rods - change of bushings in the upper head of the connecting rod with adjustment to the piston pin; final fit on the crankshaft journals on a plumb line in four positions.
26. Car electrical wires - installation according to the scheme.
§ 103. Car mechanic of the 5th category
Job Description. Adjustment and testing on stands and chassis of complex units, components and devices of vehicles and their replacement during maintenance. Checking parts and assemblies of electrical equipment on test equipment and test fixtures. Installation of devices and units of electrical equipment according to the scheme, including them in the network. Identification and elimination of complex defects and malfunctions in the process of repair, assembly and testing of units, components of vehicles and electrical equipment. Complicated locksmith processing, fine-tuning of parts according to 6 - 7 qualifications. Static and dynamic balancing of parts and assemblies of complex configuration. Diagnostics and adjustment of systems and units of trucks, cars and buses that ensure traffic safety.
Must know: constructive arrangement of serviced cars and buses; technical conditions for the repair, assembly, testing and adjustment of complex units and electrical equipment; electrical and wiring diagrams of any complexity and the interaction of devices and units in them; causes of wear of mating parts and ways to identify and eliminate them; test bench setup.
Work examples
1. Units and appliances of electrical equipment - installation according to the full scheme, connection to the network, checking and adjusting them during maintenance.
2. Crankshafts with flywheels - balancing.
3. Generators, stators, speedometers - repair, assembly, testing, elimination of defects.
4. Hydraulic lifts of the dumping mechanism - assembly and testing.
5. Torque converters - repair, assembly.
6. Engines of all types and brands - bench testing, adjustment, diagnostics.
7. Devices for checking transmission, steering, flow meters and gas analyzers - maintenance, calibration, repair.
8. Front and rear axles - replacement and adjustment of bearings; brakes, steering controls, lighting and signaling systems - diagnostics.
9. Ignition distributors, relay-regulators - testing on the stand, adjustment, elimination of defects.
10. Hydraulic and pneumatic brakes - repair, assembly, installation and adjustment.
11. Cylinders, main and connecting rod bearings - check after testing on the stand, troubleshooting and final fastening of all connections.
§ 104. Car mechanic of the 6th category
Job Description. Repair, assembly, adjustment, testing on the stand and chassis and delivery in accordance with the technological conditions of complex units and components of cars of various brands. Checking the correct assembly with removal performance characteristics. Diagnostics and adjustment of all systems and units of cars, trucks and buses. Registration of acceptance documentation.
Must know: design features cars and buses of various brands; technical conditions for the repair, testing and delivery of complex units and assemblies; methods of complete restoration and hardening of worn parts; procedure for registration of acceptance documentation; repair rules and methods for adjusting and calibrating diagnostic equipment.
Work examples
1. Automatic transmissions - assembly, adjustment, testing.
2. Stands for checking the traction, economic and braking qualities of vehicles - maintenance, repair, calibration.
3. Devices for checking electrical systems, ignition, pneumatic brakes systems, power steering - maintenance, repair, calibration and adjustment.
§ 104a. Car mechanic 7th grade
(introduced by the Order of the Ministry of Health and Social Development of the Russian Federation of November 13, 2008 N 645)
Job Description. Regulation and testing on stands and chassis of especially complex units, components and devices of cars, auto-hydraulic lifts, special vehicles intended for the transport of dangerous goods. Repair of knots and units of hydraulic systems of elevators. Checking the correct assembly of components and assemblies with the removal of operational characteristics. Diagnostics and regulation of all systems and units that ensure the safety of the movement of vehicles of various brands and purposes.
Must know: features of the arrangement of serviced vehicles of various brands and purposes; technical conditions for the repair, testing, regulation and delivery of complex units, assemblies and electrical equipment; electrical and wiring diagrams of varying complexity; ways to restore worn parts of mechanisms; arrangement of test benches; types of repair and methods of calibration of diagnostic equipment.
Work examples
1. Hydraulic couplings for turning on the fan - replacement, repair.
2. Hydro-, pneumatic amplifiers - repair, assembly and regulation.
3. Injectors - diagnostics, repair.
4. Power take-off - repair, assembly, testing.
5. Couplings for advancing the angle of fuel supply, speed controller - replacement.
6. Increasing gears - repair, assembly, testing.
7. Air conditioning systems for domestic and foreign cars - refueling, maintenance, repair.
8. Brake systems with anti-blocking system of various types of cars of domestic and foreign production - diagnostics, repair, regulation.
9. Turbochargers - dismantling, repair, assembly, testing.
10. Control rods fuel pump high pressure - regulation.
11. Units and assemblies of transmissions of domestic and foreign cars - repair, assembly and regulation.
12. Electronic systems management - diagnostics, repair.
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Job description
car repairman of the 2nd category [name of organization, enterprise, etc.]
real job description developed and approved in accordance with the provisions of the Labor Code Russian Federation, Unified Tariff and Qualification Directory of Works and Professions of Workers Issue 2, approved. Decree of the Ministry of Labor of the Russian Federation of November 15, 1999 N 45, List of industries, workshops, professions and positions with harmful working conditions, work in which gives the right to additional leave and a shorter working day, approved. Decree of the USSR State Committee for Labor and the Presidium of the All-Union Central Council of Trade Unions of October 25, 1974 N 298 / P-22, Model norms for the free issue of certified special clothing, special footwear and other personal protective equipment to workers in cross-cutting professions and positions in all sectors of the economy, employed in work with harmful and ( or) dangerous working conditions, as well as work performed in special temperature conditions or associated with pollution, approved. by order of the Ministry of Health and Social Development of the Russian Federation of October 1, 2008 N 541n, and other regulatory legal acts regulating labor relations.
1. General Provisions
1.1. A car repairman of the 2nd category belongs to the category of workers and reports directly to [name of the position of the immediate supervisor].
1.2. A person with a secondary vocational education is accepted for the position of a car repairman of the 2nd category, without presenting requirements for work experience.
1.3. A car repairman of the 2nd category is accepted and dismissed from work by order [the position of the head of the organization].
1.4. A car mechanic of the 2nd category must know:
Basic techniques for disassembling individual simple units;
Purpose and rules for the use of locksmith and instrumentation tools;
Name and marking of metals, oils, fuel, brake fluid, detergent compositions;
Basic information about the structure of cars and motorcycles;
Assembly order of simple knots;
Techniques and methods for cutting, splicing, insulating and soldering electrical wires;
The main types of electrical and insulating materials, their properties and purpose;
Methods for performing fastening work and the scope of the first and second maintenance;
Purpose and rules for the use of the most common universal and special devices and instrumentation;
Basic mechanical properties of processed materials;
Appointment and use of cooling and brake fluids, oils and fuels;
Rules for the use of pneumatic and power tools;
The system of tolerances and landings;
Roughness grades and parameters;
Fundamentals of electrical engineering and metal technology in the scope of the work performed;
Rules and norms for labor protection, industrial sanitation and fire safety;
Rules for the use of personal protective equipment;
Requirements for the quality of work performed;
Types of marriage and ways to prevent and eliminate it;
Industrial alarm;
Requirements for the rational organization of labor in the workplace.
2. Job responsibilities
2.1. Disassembly of simple car components.
2.2. Chisel cutting, hacksaw cutting, filing, deburring, washing, threading, drilling holes on the jig in the car, cleaning from dirt, washing after disassembly and lubricating parts.
2.3. Participation in repairs under the supervision of a highly qualified locksmith.
2.4. Dismantling of trucks, except for special and diesel engines, cars, buses up to 9.5 m long and motorcycles.
2.5. Repair, assembly of simple connections and components of cars.
2.6. Removal and installation of simple lighting fittings.
2.7. Cutting, splicing, insulating and soldering wires.
2.8. Performing fixing work during the first and second maintenance, elimination of identified minor faults.
2.9. Locksmith processing of parts according to 12-14 qualifications using fixtures, locksmith and control and measuring tools.
2.10. Performing work of medium complexity in the repair and assembly of vehicles under the guidance of a more highly qualified locksmith.
3. Types of work
A car mechanic of the 2nd category performs the following types of work:
3.1. Removal and installation of wheels, doors, mud flaps, steps, buffers, clamps, side brackets, fenders of trucks, tow hooks, license plates.
3.2. Checking and fastening crankcases, wheels.
3.3. Disassembly of valve guides.
3.4. Production of brackets, collars.
3.5. Removal of dumping mechanisms.
3.6. Removal and installation of water pumps, fans, compressors.
3.7. Removal and installation of plafonds, rear lights, ignition coils, spark plugs, horns.
3.8. Checking and fastening during maintenance of devices and electrical equipment
3.9. Replacement, soldering, insulation of wires.
3.10. Gasket manufacturing.
3.11. Lubrication of leaf springs with their unloading.
3.12. Cleaning contacts in candles, breakers-distributors.
3.13. Disassembly, repair, assembly of air filters, oil filters for fine and coarse cleaning.
4. Rights
A car repairman of the 2nd category has the right to:
4.1. For all social guarantees provided for by law.
4.2. Require the management of the enterprise to provide assistance in the performance of their professional duties and the exercise of rights.
4.3. Demand the creation of conditions for the performance of professional duties, including the provision of the necessary equipment, inventory, a workplace that meets sanitary and hygienic rules and regulations, etc.
4.4. To receive special clothing, special footwear and other personal protective equipment.
4.5. For extra leave.
4.6. To pay additional expenses for medical, social and professional rehabilitation in cases of damage to health due to an accident at work and occupational disease.
4.7. Get acquainted with the draft decisions of the management of the enterprise relating to its activities.