In detail: do-it-yourself gas generators repair from a real master for the site my.housecope.com.
Gasoline generators, even if they are made in China, very reliable with proper care . However, during their operation, small problems can occur, which can usually be quickly fixed by hand. Serious breakdowns, if the owner knows the device and the principle of operation of the generator, will also not be able to disable it for a long time.
If you arrange the possible malfunctions of the gas generator in a kind of rating, you get the following list:
Failure or contamination of the spark plug: difficult or impossible to start, unstable operation.
Clogged carburetor: Difficult starting, excessive fuel consumption, unstable operation under constant load.
Ignition coil failure: no spark, no start.
Starter failures: breakage, cable bite, ratchet destruction.
Violation of valve clearances: difficult start, increased noise during operation.
Brush wear (on synchronous generators) - no output voltage.
Malfunction of the speed controller: floating engine speed, dips when changing the load.
Wear of the bearings of the crankshaft and the rotor of the generator - an increase in the noise of operation, oil leakage.
Wear of the cylinder, piston rings - difficult starting of a cold engine, excessive oil consumption.
It does not take into account breakdowns that are the result of a gross violation of the rules for operating the generator: for example, scuffing on the crankshaft journal due to insufficient oil level, burnout of the generator windings or voltage converter (on inverter gasoline generators) with frequent overloads.
Video (click to play).
In fact, malfunctions of a gasoline generator can be divided into three groups: mechanical, electrical and fuel/ignition system faults .
Difficulty starting the generator, which manifested itself suddenly and is not accompanied by an increase in the noise of the engine, is a clear sign of either deviations in the operation of the carburetor (too lean or rich mixture) or a faulty ignition system (weak or intermittent spark formation). Since the diagnostics of the state of these systems are interconnected, it is combined into one section.
Remove the spark plug and inspect the deposits on its electrodes.
Dense and dry black soot - A sign of a rich mixture (faulty carburetor, clogged air filter);Oily black soot - a sign of severe wear of the piston rings, oil enters the combustion chamber;White soot - a sign of running on a lean mixture, it is necessary to check the carburetor.Brick brown soot - normal for carbureted engines.Red, green-red soot - a consequence of working on low-quality fuel.It is easy to check the performance of the ignition system itself because of its extreme simplicity: turn on the ignition, insert a known-good spark plug into the candle cap and, placing it with a skirt on the nearest metal part of the engine, turn the manual starter sharply. If there is no spark, disconnect the ignition switch and the oil level sensor in turn from the ignition coil: if there is still no spark when both elements are disconnected, replace the ignition coil.
If the spark is present and has sufficient strength (white or blue-white), remove the spark plug after several attempts to start. A spark plug flooded with gasoline is a sign of over-enrichment of the mixture, a dry one is a sign of a lack of fuel.
Sometimes, after long storage, the needle and float of the carburetor stick and do not allow gasoline to flow inside. A few times abruptly, but do not hit the float chamber cover very hard and restart.
The most common carburetor malfunction is its contamination. The ingress of dirt into the air channels leads to a re-enrichment of the mixture, in the fuel jets - to depletion. Dirt on the float shut-off needle leads to loss of tightness and overflow of the float chamber, which will be immediately noticeable by fuel leakage from the carburetor.
Consider the maintenance of a carburetor using the example of a Honda GX installed on engines - its design is typical for a gasoline generator.
Remove the float chamber cover (4). Wash it in gasoline or aerosol carburetor cleaner - dirt and deposits accumulate on its bottom.
Do the same with the gas cock sump (22).
Check if the gas valve is blown in the "open" position.
Remove the float shaft (3), remove the float and locking needle (2). Blow out the channel with air.
Blow out the fuel jet (25), emulsion tube (11) and all carburetor passages with an aerosol cleaner or compressed air.
Turn out the adjusting screw (5), blow through its channel. Then turn it all the way in and loosen it, depending on the type of air filter, by 2 (foam rubber, paper filters) - 2.5 turns (cyclone filters).
Assemble the carburetor.
The electrical system of gas generators is quite reliable. Most often, you will encounter two problems: no battery charging on generators with electric start or lack of voltage at the output of the generator .
The lack of battery charging is a consequence of the failure of the rectifier or low-voltage winding. Checking this system with your own hands is simple: connect a 12-volt light bulb in parallel with the low-voltage winding of the generator and start it. A burning light means that the generator itself is working properly, and the rectifier needs to be replaced.
The absence of voltage at the generator output is most often the result of brush wear. Remove them and assess the degree of wear, replace if necessary. If your generator is an inverter type, check if the voltage comes to the input of the converter by connecting a low-power 220 V lamp in parallel with it.
Video about the phased repair of a gas generator
VIDEO One of the routine maintenance provided for in the operating instructions for gas generators is the control and adjustment, if necessary, of valve clearances. An increase in clearances in excess of the norm will lead to a decrease in engine power, an increase in noise during operation. The most dangerous is the decrease in the gap, since it is not audible during operation, but pinched valves, especially the exhaust, begin to burn rapidly. As a result, the engine starts to work unstably and when the plate burns out, it stops starting.
Valve Adjustment Procedure pretty simple:
Remove all components that prevent the removal of the engine valve cover.
Remove the spark plug.
Remove the valve cover.
Set the crankshaft to the top dead center of the compression stroke by the mark on the flywheel (if any) or by controlling the movement of the piston through the spark plug hole. Do not confuse compression TDC (both valves are closed ) with exhaust TDC (exhaust valve closes, intake valve opens ).
Loosen the locknuts of the adjusting screws and use a flat feeler gauge inserted between the rocker arm and the end of the valve to set the clearances by turning the screw. Usually, a gap of 0.2 mm is adopted for the exhaust valve, and 0.15 for the inlet valve (check in the operating instructions).
Tighten the locknuts and rotate the crankshaft twice to TDC. If everything is done correctly, at the next dead center both gaps will go away, after another turn they will take on the set value. The gaps that increased after the first revolution are a sign that they were adjusted at the TDC of the exhaust stroke.
Assemble the generator.
Manual starter malfunctions - perhaps most common mechanical problem . Either the cable breaks, or the starter refuses to reel it in due to a broken return spring, or the ratchet does not turn the crankshaft.
Remove the starter by unscrewing the bolts around the perimeter of its casing. By unscrewing the screw (1), the ratchet mechanism can be removed. Check its cams (4) and return springs (5). Then carefully remove the pulley together with the spring (7). Replace broken cable or broken spring, depending on what caused the repair.
When assembling the starter, care must be taken to ensure that the spring remains engaged with the casing and pulley while it is being reinstalled. The rope must be fully wound on the pulley. With the ratchet in place, check the cable travel and how the starter returns to its original position.
Overview and repair of the Einhell STE800 gas generator
VIDEO
Sometimes it happens that the generator needs to be started urgently, and the manual starter failed at that very moment. If necessary, there are several ways to emergency start.
The ways listed below unsafe !
Remove the starter cover. Below it is a flywheel with a cooling impeller, attracted to the crankshaft with a nut. To make it spin, you can:
After winding the rope around the flywheel, use it in the same way as the rope of a manual starter. Keep in mind that if it catches on the fan blades, when the motor starts, this rope will turn into a whip whipping in all directions, so be careful. Stand so that the rope cannot get on your hands or head.
Low-power engines can also be started manually: turn the crankshaft several times with the ignition off, turning the pulley with your hands in the right direction. In this case, the gas valve must be open, and the damper of the starting device must be closed. After that, turning on the ignition, bring the crankshaft to the compression TDC (you will feel an increase in effort on the flywheel), and then turn the pulley with a sharp jerk so that the spark energy is enough to ignite the mixture.
A powerful cordless drill and a head with an extension cord from the tool kit are a good replacement for an electric starter in a hurry. Clamp the extension in the chuck, put a suitable size head on it and unwind the crankshaft by the flywheel mounting nut. True, in this way it will be possible to start only a low-power generator - for an engine with a large amount of torque, a drill is not enough to turn it on the compression stroke.
A number of malfunctions, alas, are quite difficult to fix with your own hands without having sufficient qualifications: for example, a faulty inverter converter or voltage regulator can only be repaired if you have a good understanding of the principle of operation and circuitry of such devices. Not every owner of a gas generator will take on the engine overhaul, although this is not as difficult as it might seem.
In this case, you should contact a specialized repair shop. The coordinates of workshops in your city can be found on the Internet or in stores selling gas tools.
In large cities like many workshops Here are just a few of them:
Written on January 2, 2018 by generator-prosto . No comments yet
Gasoline generators, even if they are made in China, very reliable with proper care . However, during their operation, small problems can occur, which can usually be quickly fixed by hand. Serious breakdowns, if the owner knows the device and the principle of operation of the generator, will also not be able to disable it for a long time.
If you arrange the possible malfunctions of the gas generator in a kind of rating, you get the following list:
Failure or contamination of the spark plug: difficult or impossible to start, unstable operation.
Clogged carburetor: Difficult starting, excessive fuel consumption, unstable operation under constant load.
Ignition coil failure: no spark, no start.
Breakdowns of a manual starter: breakage, biting of the cable, destruction of the ratchet.
Violation of valve clearances: difficult start, increased noise during operation.
Brush wear (on synchronous generators) - no output voltage.
Malfunction of the speed controller: floating engine speed, dips when changing the load.
Wear of the bearings of the crankshaft and the rotor of the generator - an increase in the noise of operation, oil leakage.
Wear of the cylinder, piston rings - difficult starting of a cold engine, excessive oil consumption.
It does not take into account breakdowns that are the result of a gross violation of the rules for operating the generator: for example, scuffing on the crankshaft journal due to insufficient oil level, burnout of the generator windings or voltage converter (on inverter gasoline generators) with frequent overloads.
In fact, malfunctions of a gasoline generator can be divided into three groups: mechanical, electrical and fuel/ignition system faults .
Difficulty starting the generator, which manifested itself suddenly and is not accompanied by an increase in the noise of the engine, is a clear sign of either deviations in the operation of the carburetor (too lean or rich mixture) or a faulty ignition system (weak or intermittent spark formation). Since the diagnostics of the state of these systems are interconnected, it is combined into one section.
Remove the spark plug and inspect the deposits on its electrodes.
Dense and dry black soot - A sign of a rich mixture (faulty carburetor, clogged air filter);Oily black soot - a sign of severe wear of the piston rings, oil enters the combustion chamber;White soot - a sign of running on a lean mixture, it is necessary to check the carburetor.Brick brown soot - normal for carbureted engines.Red, green-red soot - a consequence of working on low-quality fuel.It is easy to check the performance of the ignition system itself because of its extreme simplicity: turn on the ignition, insert a known-good spark plug into the candle cap and, placing it with a skirt on the nearest metal part of the engine, turn the manual starter sharply. If there is no spark, disconnect the ignition switch and the oil level sensor in turn from the ignition coil: if there is still no spark when both elements are disconnected, replace the ignition coil.
If the spark is present and has sufficient strength (white or blue-white), remove the spark plug after several attempts to start. A spark plug flooded with gasoline is a sign of over-enrichment of the mixture, a dry one is a sign of a lack of fuel.
Sometimes, after long storage, the needle and float of the carburetor stick and do not allow gasoline to flow inside. A few times abruptly, but do not hit the float chamber cover very hard and restart.
The most common carburetor malfunction is its contamination. The ingress of dirt into the air channels leads to a re-enrichment of the mixture, in the fuel jets - to depletion. Dirt on the float shut-off needle leads to loss of tightness and overflow of the float chamber, which will be immediately noticeable by fuel leakage from the carburetor.
Consider the maintenance of a carburetor using the example of a Honda GX installed on engines - its design is typical for a gasoline generator.
Remove the float chamber cover (4). Wash it in gasoline or aerosol carburetor cleaner - dirt and deposits accumulate on its bottom.
Do the same with the gas cock sump (22).
Check if the gas valve is blown in the "open" position.
Remove the float shaft (3), remove the float and locking needle (2). Blow out the channel with air.
Blow out the fuel jet (25), emulsion tube (11) and all carburetor passages with an aerosol cleaner or compressed air.
Turn out the adjusting screw (5), blow through its channel. Then turn it all the way in and loosen it, depending on the type of air filter, by 2 (foam rubber, paper filters) - 2.5 turns (cyclone filters).
Assemble the carburetor.
The electrical system of gas generators is quite reliable. Most often, you will encounter two problems: no battery charging on generators with electric start or lack of voltage at the output of the generator .
The lack of battery charging is a consequence of the failure of the rectifier or low-voltage winding. Checking this system with your own hands is simple: connect a 12-volt light bulb in parallel with the low-voltage winding of the generator and start it. A burning light means that the generator itself is working properly, and the rectifier needs to be replaced.
The absence of voltage at the generator output is most often the result of brush wear. Remove them and assess the degree of wear, replace if necessary. If your generator is an inverter type, check if the voltage comes to the input of the converter by connecting a low-power 220 V lamp in parallel with it.
Video about the phased repair of a gas generator
VIDEO
One of the routine maintenance provided for in the operating instructions for gas generators is the control and adjustment, if necessary, of valve clearances. An increase in clearances in excess of the norm will lead to a decrease in engine power, an increase in noise during operation. The most dangerous is the decrease in the gap, since it is not audible during operation, but pinched valves, especially the exhaust, begin to burn rapidly. As a result, the engine starts to work unstably and when the plate burns out, it stops starting.
Valve Adjustment Procedure pretty simple:
Remove all components that prevent the removal of the engine valve cover.
Remove the spark plug.
Remove the valve cover.
Set the crankshaft to the top dead center of the compression stroke by the mark on the flywheel (if any) or by controlling the movement of the piston through the spark plug hole. Do not confuse compression TDC (both valves are closed ) with exhaust TDC (exhaust valve closes, intake valve opens ).
Loosen the locknuts of the adjusting screws and use a flat feeler gauge inserted between the rocker arm and the end of the valve to set the clearances by turning the screw. Usually, a gap of 0.2 mm is adopted for the exhaust valve, and 0.15 for the inlet valve (check in the operating instructions).
Tighten the locknuts and rotate the crankshaft twice to TDC. If everything is done correctly, at the next dead center both gaps will go away, after another turn they will take on the set value. The gaps that increased after the first revolution are a sign that they were adjusted at the TDC of the exhaust stroke.
Assemble the generator.
Manual starter malfunctions - perhaps most common mechanical problem . Either the cable breaks, or the starter refuses to reel it in due to a broken return spring, or the ratchet does not turn the crankshaft.
Remove the starter by unscrewing the bolts around the perimeter of its casing. By unscrewing the screw (1), the ratchet mechanism can be removed. Check its cams (4) and return springs (5). Then carefully remove the pulley together with the spring (7). Replace broken cable or broken spring, depending on what caused the repair.
When assembling the starter, care must be taken to ensure that the spring remains engaged with the casing and pulley while it is being reinstalled. The rope must be fully wound on the pulley. With the ratchet in place, check the cable travel and how the starter returns to its original position.
Overview and repair of the Einhell STE800 gas generator
VIDEO Sometimes it happens that the generator needs to be started urgently, and the manual starter failed at that very moment. If necessary, there are several ways to emergency start.
The ways listed below unsafe !
Remove the starter cover.Below it is a flywheel with a cooling impeller, attracted to the crankshaft with a nut. To make it spin, you can:
After winding the rope around the flywheel, use it in the same way as the rope of a manual starter. Keep in mind that if it catches on the fan blades, when the motor starts, this rope will turn into a whip whipping in all directions, so be careful. Stand so that the rope cannot get on your hands or head.
Low-power engines can also be started manually: turn the crankshaft several times with the ignition off, turning the pulley with your hands in the right direction. In this case, the gas valve must be open, and the damper of the starting device must be closed. After that, turning on the ignition, bring the crankshaft to the compression TDC (you will feel an increase in effort on the flywheel), and then turn the pulley with a sharp jerk so that the spark energy is enough to ignite the mixture.
A powerful cordless drill and a head with an extension cord from the tool kit are a good replacement for an electric starter in a hurry. Clamp the extension in the chuck, put a suitable size head on it and unwind the crankshaft by the flywheel mounting nut. True, in this way it will be possible to start only a low-power generator - for an engine with a large amount of torque, a drill is not enough to turn it on the compression stroke.
A number of malfunctions, alas, are quite difficult to fix with your own hands without having sufficient qualifications: for example, a faulty inverter converter or voltage regulator can only be repaired if you have a good understanding of the principle of operation and circuitry of such devices. Not every owner of a gas generator will take on the engine overhaul, although this is not as difficult as it might seem.
In this case, you should contact a specialized repair shop. The coordinates of workshops in your city can be found on the Internet or in stores selling gas tools.
In large cities like many workshops Here are just a few of them:
A portable power generator is an indispensable source of energy in conditions where there is no possibility of connecting to electrical mains or the supply of electricity through them stops. They use regular motor gasoline as fuel.
A portable power generator will be useful wherever there is no permanent power supply, for example, on a trip to nature.
Diesel generators have a large mass, so they are installed permanently as a backup source of electricity. Their gasoline analogue is much lighter, therefore it is quite mobile and is often taken with them to remote hard-to-reach places. Therefore, in the event of a breakdown of the gas generator, it is extremely problematic to call repair specialists; it becomes necessary to repair it yourself, with your own hands.
Portable gasoline power generator.
Such a machine is a mechanism for generating alternating current based on the synchronous rotation of its elements. Moreover, such a current, depending on its model and power, can be either single-phase or three-phase. The first has the ability to generate a voltage of 220 V and supply current to a single-phase load, which is necessary for electric lighting and the operation of most household electrical appliances. The second one can give a load in three phases and provide a voltage of 380 V, which makes it possible to connect welding machines in the first place.
The gas generator consists of an electric generator and a gasoline engine that supplies it with energy. They are connected to each other by a special elastic coupling. A metal box is installed at the electric generator, where a device for turning it on, devices for measuring operation parameters and automatic fuses in case of short circuits are mounted.A gasoline engine can have from 1 to 8 cylinders, depending on the required power, and can also be two- or four-stroke. The latter are used more often because they are more economical and have greater efficiency. The switching method can either be from a spark obtained mechanically using a manual drive, or from a battery.
The main causes of failures in the operation of a portable gas generator can be either a breakdown of the engine or a failure of the electric generator. To find out the specific cause of the malfunction, one by one, you will have to check all the nodes that can cause a failure.
Scheme of the internal structure of the generator: 1. Fuel filters. 2. Crankshaft. 3. Air filter. 4. Part of the ignition system. 5. Cylinder. 6. Valve. 7. Crankshaft bearing.
In addition, the load on the generator may exceed its capacity. Then you need to turn it off and check the work. If, during the operation of the unit, smoke begins to rise from it and a burning smell appears, it means that a short circuit has occurred in the winding, then self-repair is extremely problematic, a complete rewinding of the windings is needed.
VIDEO
In general, repairing a gas generator on your own is quite affordable even in the field.
Carrying out the repair of a gas generator begins with identifying the cause of the breakdown and eliminating it. The main cause of failures in the operation of gasoline generators is the failure of the gasoline engine or electric generator. To carry out repair work, you should independently study the design and principle of operation of the equipment.
Gasoline generators are needed to power the network or various devices.
A portable gas generator is an indispensable device for generating electricity in conditions where there is no possibility of connecting to centralized power supply lines. The industry offers consumers a choice of gasoline and diesel generators. As a fuel in gasoline installations, ordinary motor gasoline is used. Gasoline generators are small in size, which is their advantage if the device needs to be transported.
A gasoline generator is an installation for generating alternating current. The generation of electric current is carried out on the basis of synchronous rotation of the installation elements. Depending on the design and purpose of the device, the generated current can be either single-phase or three-phase. Depending on the purpose of the installation, they may differ not only in the parameters of the electric current, but also in the power of the installation itself. Devices that produce a single-phase current with a voltage of 220 V are designed to power a household consumer network. Generators that produce a three-phase current with a voltage of 380 V are most often used to power various devices, such as welding machines.
Scheme of a gasoline generator.
The design of the gasoline generator consists of two blocks. One of the units is a generator that generates electricity, and the second unit of the installation is a gasoline engine that supplies the electric generator with energy. Structural blocks are interconnected by means of an elastic coupling. The electric generator in its design has a unit with devices designed to turn on the generator, devices for monitoring the operation parameters of the device and automatic machines that protect the installation from accidental short circuits.
The propulsion system running on gasoline can include from one to eight cylinders. The number of cylinders in a gasoline engine depends on the power of the engine. These engines can be either two-stroke or four-stroke. Four-stroke engines are more fuel efficient and more efficient than two-stroke engines.
The task of the installation is to convert mechanical energy generated by an internal combustion engine into electrical energy generated by an electric generator. Repair of a gas generator is associated with the replacement of engine and generator elements that fail during operation.
The propulsion system is equipped with a whole range of systems that ensure its operation. Such systems are:
The principle of operation of a portable gas generator.
launch system;
engine shaft speed stabilization system;
propulsion system cooling system;
system for ensuring the removal of exhaust gases;
system for cleaning and supplying air to create a combustible mixture.
The propulsion system is started using a manual start or an electric starter.
Autostart systems are used in modern installations. You can independently repair only those installations that are equipped with a mechanical start system. If it is necessary to carry out repairs of propulsion systems equipped with automation, it is impossible to do without the use of specialized equipment.
Power from the internal combustion engine is transmitted to the generator shaft through a flexible coupling. This flexible connection, in addition to power transmission, provides vibration damping.
Scheme of connecting a portable gas generator.
The main breakdowns during the operation of a portable gasoline generator set occur in the engine or generator set.
The following systems can most often fail in a propulsion system:
fuel supply system;
combustible mixture preparation system;
gas distribution system;
gas distribution mechanism drive;
engine start system.
To identify the specific cause of the malfunction, it is necessary to check all the nodes that may be the cause of the installation failure.
The main breakdown and malfunction of the fuel supply system is a clogged fuel line from the gas tank to the carburetor. The system is capable of becoming clogged as a result of the use of low-quality fuel during the operation of the installation. To repair the gas generator with your own hands, you need to dismantle the fuel supply system and clean the tap and the supply pipe. During operation, the fuel level sensor in the fuel tank can fail. If a sensor breakage is detected, it should be dismantled and replaced with a new one.
An engine stop may be due to the failure of the carburetor due to clogging and sticking of moving structural elements. To eliminate clogging of the needle channel responsible for fuel injection, it is required to blow the channel with compressed air. As a result of using low-quality fuel, sticking of the float mechanism that supplies fuel may occur. To eliminate sticking, it is necessary, using a special liquid for cleaning carburetors, to moisten the float and its needle and move the float manually.
VIDEO
If you suspect a malfunction in the engine gas distribution system, remove the cover from the valve block and try to move the rocker arms. If during the movement the valves of the gas distribution mechanism do not open, then sticking or burning of the valves has occurred. Such phenomena are observed in the case of using low quality fuel during the operation of the plant. To clean the valve, moisten it with special liquid for cleaning carburetors, then turn the rocker and hammer the valve to the end with a hammer. After that, by turning the shaft, push the valve back. This procedure should be repeated several times until the valve moves freely in the seat.
Checking the oil level of the generator.
If a belt is used as a drive for the engine timing mechanism, it can stretch and tear during operation. In case of failure, it must be replaced with a new one.
With an electric starter, the gas generator may not start due to the fact that the battery is dead or uncharged.
In the event of a malfunction in the generator unit, it is better to invite a specialist for repairs, as this requires special knowledge.
The main signs of a breakdown of the generator are the absence of voltage in the network during operation and the instability of the voltage.
The most common cause of generator failure and breakdown is damage to the stator or rotor windings. The first sign of a malfunction during operation is the appearance of burning and smoke from the generator unit. The appearance of these signs may indicate the occurrence of an interturn short circuit or a short circuit of the output ends of the windings.
VIDEO Repairing a breakdown of this type is an expensive operation, since the procedure for rewinding the windings is quite expensive and is carried out using special equipment.
In the event of voltage drops generated by the generator of the installation, in the absence of the smell of burning and smoke, you should check the stability of the voltage regulator, which prevents the appearance of drops. In the event of a malfunction, this structural element should be repaired and the condition of the brushes of the generator set should be checked.
There are two main types of generators: industrial and domestic. They have different power, dimensions, fuel costs and so on. The principle of operation is identical. Main differences:
The household model does not have a large resource, therefore it is intended only for short-term use. Power does not exceed 2-3 kW. They produce a single-phase current of 220 V.
Industrial models are designed to run smoothly for a long time. The power can be incredibly high, depending on the system being served. They produce a three-phase current of 380 V.
When buying, the choice should be based on the conditions in which the equipment will be operated. It is important to understand that a homemade gas generator is not as efficient as a model from the manufacturer.
The main mechanism is a gasoline engine, the principles of operation of a gasoline generator are based on it. Currently, two-stroke and four-stroke versions are used. The first type has a simple design, is lighter and cheaper, but it has a minimal resource and is not intended for long-term use, although it is usually suitable for home purposes. But more often choose four-stroke models, they fulfill their purpose in full.
VIDEO
VIDEO
The generator is the main working unit of the equipment that generates electric current. When the rotor moves, the current is excited on the stationary stator, due to the alternating magnetic field. In fact, the presented aspects of physical strength and theory are not of great importance. To eliminate the malfunction, it is enough to change some parts, since they cannot be repaired, but only replaced. You may need a gas generator electrical circuit, where you can more thoroughly study the main aspects. There are differences in power:
Low-power power plants with indicators up to 2 kW. Used for short run. Most often they serve small refrigerators or to illuminate the territory with several light bulbs.
Medium type models with power up to 6.5 kW. The equipment is used to provide electric current to small houses, garages or shops. These are professional systems that work exclusively on gasoline engines.
Powerful electric generator up to 15 kW. Unique systems where not only a gasoline engine, but also a diesel engine can be used, it all depends on the manufacturer. All models are only three-phase and are used to supply power to huge buildings, enterprises or industrial facilities.
Consumers have the opportunity to replace a generator or engine in any segment, but this should be done only after considering all further technical indicators in advance. That is, it is possible to make one out of two gas generators if some parts are damaged and unsuitable for further operation.
VIDEO
Gasoline engines are installed on generators most often, of course, there are models that run on diesel fuel, gas, but they are less popular. A variety of breakdowns occur during operation, and sometimes their elimination requires urgent intervention. Only in this way, it will be possible to achieve the required indicator. Considering the main types of breakdowns and defects, it all comes down to the fact that they are always identical. The design of the motors is the same, and they differ only in technical characteristics, so it will be much easier to eliminate engine breakdowns than a generator. Main faults:
The engine does not start. There is no fuel or a spark on the candles, the integrity of the crank mechanism is broken. There are defects or foreign elements preventing this.
The operation of the equipment is uneven with interruptions. The fuel has foreign impurities, the operation of the spark plugs is disrupted.
Breakdowns associated with the crank mechanism. Most often, this leads to the fact that there is a fuel supply, as well as a spark, but the engine does not start. There may be no compression due to worn rings.
Sometimes pistons break on Chinese models, as low-grade metal is used.
Poor quality oil can also cause clogging of the channels, which will lead to overheating of the motor.
Carburetor clogging occurs due to poor-quality fuel, foreign impurities, or prolonged non-use of equipment.
Technical issues are resolved only through specialized service stations. If there is a guarantee and service in the city, then the choice is completely obvious. In this situation, nothing can be disassembled, since specialists will refuse free repairs, due to a violation of the integrity of the structure. Therefore, you need to check the warranty period first.
The equipment has many different additional parts and mechanisms that perform their technical tasks. The installed inverter muffler is part of the sound insulation. When using a gas generator, a large amount of noise is emitted, so it must be minimized. Developers are trying their best to create better systems for these devices.
Regarding the presented aspect of the repair work, it is recommended to contact specialized service stations. You can buy a new generator for a gas generator and install it yourself, otherwise you can’t do without the help of specialists. The main types of breakdowns and methods of elimination:
The generator does not produce electricity or works intermittently. Violation of the integrity of the electrical circuit, the winding is damaged, the motor does not transmit torque.
There was a burning smell. The generator burned out, there was a short circuit.
In case of any type of violation, it is recommended to immediately turn off the engine. Next, an external inspection is carried out or a master is called. The second option will be more rational and efficient.
A starter is required to start the engine. Most often, manual is used, but more powerful models are equipped with electric starters like automobile ones. Repair and maintenance of these technical elements is carried out by complete replacement. The problem is that most of them are non-repairable. Standard disassembly can lead to the fact that you simply cannot put everything back together.
The main condition for carrying out repair work is to refer first of all to technical aids. This will allow you to deal with all breakdowns and other restrictions in advance. Your hand will become the main assistant in carrying out repairs and maintenance. Checking of electronic units is carried out using specialized stands. That is, it is computer software that will allow you to identify all the shortcomings of the equipment in the early stages.
Regardless of type or brand, all gasoline generators are serviced identically. For the convenience of consumers, special manuals and recommendations are attached to the equipment, so as not to forget about the planned maintenance. You should always start with an external inspection so as not to miss damage to external parts. Of course, if you have a Chinese inverter generator, then you may have problems finding components. The main types of work included in TO:
The inspection should consist of viewing all work items.
It is necessary to remove the air, fuel filter and replace with a new one. The term of the change depends on the duration and regularity of use of the equipment.
It is recommended to replace belts, candles.
A standard off-grid generator needs regular oil changes.
Based on the presented aspects, it will be possible to increase the service life of equipment to the maximum.
You can replace the wheel on mobile equipment without any special problems.
It is recommended to pay attention to the Fubag technique, this is a German brand that produces a new generation of electric generators. This option will be able to fully satisfy all the individual wishes of customers. The company produces various types of equipment models, with different technical characteristics. That is why you can easily pick up everything you need without any restrictions.
Of course, in order to properly carry out maintenance and repairs, you need to know the device of the gas generator, then you can not only change parts, but also assemble it back. This is not so easy to do, since there are a large number of various nuances that are recommended to be studied at the preliminary stage.
Any equipment requires professional care. Therefore, it is recommended to adhere to the rules that the manufacturer provides customers. These are very important aspects that will not only improve the start-up of equipment, but also increase the overhaul period. Key recommendations:
For long-term storage, be sure to drain all the fuel from the tank. Gasoline oxidizes carburetor parts, which can lead to clogged passages.
It is recommended to use polyethylene to cover the equipment during long-term storage, to protect against corrosion and moisture ingress.
It is best to carry out maintenance before storage.
In no case should the generator be left disassembled for a long time, as foreign elements may get inside.
Store in a dry and cool place.
Do not start equipment in severe frost unless it is designed to operate in such conditions.
Thus, you can protect not only your money, but also your equipment. Currently, manufacturing companies provide customers with special technical instructions that go into all the details in detail.
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