2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16
The job description of a repairman (Belarus and the Russian Federation) establishes the basic requirements for mechanics of mechanical assembly works working on conveyors and stationary stands for the collection of turbogenerators, hydrogenerators, electric machines (direct current, synchronous, asynchronous) using manual, electric, pneumatic tools, pneumatic presses, hydraulic clamps, presses that use lifting equipment in their work.
Technological process of mechanical assembly works
The job description of a repairman establishes the technological process of mechanical assembly work depending on the type of product and includes the following operations:
- collapsible connections;
- non-separable connections (pressing, gluing, welding, soldering);
- testing for dielectric strength, tightness, etc.
The following equipment and tools are used:
- assembly tables and stands;
- conveyorsassembly;
- presses and clamps hydraulic;
- pneumatic presses;
- oil baths;
- furnaces and electric induction heaters;
- electric welding equipment;
- tinning and soldering equipment;
- grinding machines;
- test equipment;
- lifting equipment and mechanisms;
- electrified tools (electric drills, electric screwdrivers, grinders, etc.);
- pneumatic tools (pneumatic wrenches, grinders, pneumatic hammers, etc.);
- hammers, sledgehammers, files, chisels, chisels, awls, screwdrivers, chisels, cores, wrenches, machine vices, needle nose pliers, round nose pliers, etc.
There is a separate job description for stokers. The boiler repairman is required to additionally perform the following duties:
- maintain hot water and steam boilers running on solid fuels;
- toggle feeding lines;
- fill steam lines;
- turn on automatic boiler power equipment;
- perform preventive inspection of devices;
- receive boilers from repair and prepare them for operation.
Precautions
The job description of a repairman establishes the need to take precautions at work and on the territory of enterprises when moving in workshops in the working area, before starting work, when checking readiness forthe action of the conveyor and stands for the compilation of mechanisms and machines, mechanical assembly devices, including:
- machines and mechanisms, moving and rotating parts of mechanisms, technical means, devices, systems, equipment, conveyor, stands;
- products, moving blanks, materials, cargo;
- tools, fixtures, equipment, products, blanks, materials, moving goods, pneumatic tools, power tools;
- fragments and tool parts;
- sharp edges and roughness on the surfaces of blanks, parts, units of mechanisms (assembly units), assemblies, equipment and various technical means (devices), equipment, mechanisms, machines, tools;
- high dust content in the working area of the surfaces of mechanisms, equipment, technical means, devices, systems;
- high levels of static electricity;
- toxic, chemical, carcinogenic and gastrointestinal irritants.
Safety requirements before starting work
Typical job description for a repairman prescribes:
- In the case of continuous operation, accept changes based on the entries made in the shift log, which indicate violations of the operating mode of the technological process, if any. The shift journal must be signed by the shift master.
- Before starting work, tidy up the overalls. Sprinkle the floor with sand or sawdust, then collectthem.
- Check the serviceability of ladders, ladders, stands.
- Ensure that the lighting (general or local) provides a clear view of the graduations on the gauges.
- Check the electrical safety equipment.
- Work with a pneumatic tool that is certified.
- Check the operation of the gripping devices.
- Check the quality of threaded surfaces on rhyme bolts and other devices designed to lift parts during their transportation.
- Check the he alth of the equipment (grinding machines, heating baths, furnaces, presses, etc.).
- Check the presence of fences and their serviceability, reliability of fastening.
- Make sure the exhaust ventilation system is working.
- Ensure safety signs and primary fire fighting equipment are in place.
- Check the protective grounding (zeroing) in order to detect visible damage.
- Check the availability of raw materials, blanks, semi-finished products in accordance with the work order, and their quality - according to the assessment of the technical control department.
Features of handling a mechanical tool
Job description of a 5th grade repairman prescribes:
- Use correct tool.
- Securely hold tools and workpieces while processing them.
- Conclusion of materials, blanks and parts to the workplace to perform in a way that provides themsustainability.
- Do not keep foreign objects in the work area that are not used when processing parts.
- Stop working when the tool becomes dull (sharpen or replace it).
- Remove equipment and portable lamps from sockets if required to leave the workplace.
- Do not stop rotating parts and tools with your hands.
Safety requirements when working with electrified tools
The job description of a repairman when working with an electrified tool sets out to beware of grabbing clothes and injuring hands. When working with such a tool, you can only use proven electrical protective equipment: rubber mats, gloves, galoshes.
Work related to electrical testing with voltages above 42 V should be performed only if you have completed training, attestation and have the appropriate certificate.
Pneumatic tool
The job description of a 6th category repairman requires that the product be removed and installed during pressing and testing of units on pneumatic presses only when the rod is completely stationary.
Details and assemblies should be enclosed in a special container. When stacking on the floor, ensure the stability of the stack. The height of the latter should be no more than 1 m.
Mechanical assembly work
Job description of a repairmanwhen performing mechanical assembly work prohibits:
- work with loose bulky parts;
- unloading work is not to be carried out under the guidance of a responsible person (foreman, foreman, shift engineer, etc.)
Faulty mechanisms, fixtures, inventory and containers cannot be used for loading and unloading and transport operations for securing goods. Rigging and rafter work should be carried out in case of passing special training and with a certificate.
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