Diesel, petrol and gas generators. How to start the generator? Learn how to start a gasoline generator Starting a diesel power plant

Using fuel with the highest octane number does not make sense, because a gasoline power plant works fine on 92 gasoline, and 87 and 95 are not suitable for it.

It is forbidden to use all kinds of additives that serve to increase the octane number, as they are alcohol-containing.

The optimal solution is to purchase 92 gasoline sold at a proven gas station and dispensed into a clean container.

The latest gasoline, diesel and gas generators are reliable devices that are equipped with several levels of protection. Special elements create safe conditions for the operation of powered equipment and prevent the occurrence of breakdowns of the power plants themselves due to any reasons. However, even such high-quality protection of generator sets from various aggressive influences, including those that the person himself exerts on them directly, does not diminish the importance and relevance of a correctly conducted start-up of a gasoline or diesel installation.

The start-up of the device, as well as its correct use, regulated by the manufacturer, reduces the likelihood of breakdowns to zero and guarantees the longest possible service life.

Preparation before launch

After the power plant was released from packaging examine it carefully making sure that the device has not received any damage during transport. Make sure all accessories are present and in the correct location. Please note that all hoses must be securely connected to the corresponding pipe sections.

If you want to purchase a completely new generator, there will certainly be detailed instructions for use in the kit. We strongly recommend that you read the instructions. Even if you have experience in using liquid-fuel or gas-fired power generating devices, this should not be neglected. Such a technique is quite complex, and almost any model has certain characteristic features that must be taken into account when using it.

Initially as preparation for launch fill the unit with the required amount of engine oil. The device does not need its large volume, so saving on the purchase of a high-quality synthetic version is not advisable, because the durability of the device is directly dependent on the reliability of the oil used. When purchasing engine oil, it is recommended to take into account the temperature regime, which is typical for the territory where it is planned to use your power generating unit.

Secondly, choose the right fuel. For refueling gasoline units, it is recommended to use unleaded gasoline, which is of high quality. Since it is possible to fill the tank of an electric generating device not only at a car gas station, but also with the help of intermediate containers, it is necessary to keep the gasoline storage containers clean. They must not contain liquid, dirt or dust particles. Even a small amount of water in the fuel tank of the gas generator can cause the device to fail.

Before starting the instrument make sure the surface on which the unit is placed is really smooth. Under it, the presence of water and any other liquids is unacceptable. In the event that the unit is not equipped with an exhaust system, it is prohibited to start it indoors. Remember about grounding, as without it the safe operation of the device is impossible.

Launching devices of various types

Starting a petrol and diesel generator

The unit is started when there is no load. Thus, when connecting to the power plant units supplied from it with power, disconnect them. This is followed by turning on the ignition and moving the air damper to the “Closed” (or “CLOSED”) position. Next, you need to be guided by what type of starting system the electric generator is equipped with.

Distinguish between auto start, electric start system and mechanical start (manually).

• Mechanical start system

In order to start the operation of a gasoline or diesel power plant, which is equipped with a mechanical start, it is necessary to pull the handle of the starting cord in your direction until resistance appears. After that, the handle is pulled in one sharp movement. You should not release it immediately, as the cord should return to its original position gradually. In the event that it was not possible to start the engine the first time, you need to repeat the procedure. After proper warming up of the internal combustion engine, the opening of the air damper is allowed.

An inverter type generator is started a little differently. Before starting, it is necessary to connect the power supply, after which the handle is set to the “On” position. and opening the air damper. After carrying out the above operations, you can pull the starter cord.



• Electric start

Before starting a gasoline or diesel generating set equipped with an electric starter, you need to make sure that the battery terminals are securely fastened by observing the polarity. In the event that you decide to purchase a device with an electric start type, check whether the battery is included in the package. Not all manufacturers produce devices equipped with a battery. Sometimes you have to buy it extra. It is necessary to start the generator with an electric starter using a special button located on the control panel, or by turning the key, as in cars.



• autostart

Devices with auto-start are switched on immediately after the electricity disappears in the central network. It is undesirable to immediately switch the load to a newly launched unit. It is necessary to let it idle for a period of time, which will ensure sufficient warming up of the engine and stabilization of its functioning.

You can buy generators with auto start, as well as models with manual start and electric start, on our website.

Starting a diesel power plant in winter conditions

In winter, during severe frosts, there may be problems with starting a diesel generator. There are several solutions to this issue, designed to facilitate winter starting.

First decision is to install a pre-heater. This element is mounted on the engine cooling circuit. With its help, the cooling system fluid and the oil in the crankcase are heated. There are diesel (for electric generators serving as the main power source) and electric (for generator sets intended for backup power supply) preheaters. Electric models need to be connected to the central power supply, they are always ready for use.

Second decision It is represented by the placement of diesel generators in a special container, due to which they can be repeatedly moved and transported by all modes of transport. When the device is in such a container, the engine is guaranteed to start under any temperature conditions, and the additional equipment that the diesel generator is equipped with will function efficiently. In addition to creating favorable climatic conditions for work, containers significantly reduce noise levels.

Expert advice

Launch of a gas power plant

When using gas generators, it is especially important to check the oil level before starting, as well as completely disconnect the load. Next, you should perform the following actions:

• Open the gas supply valve.
• Move the motor switch to the "ON" position.
• Move the air damper to the "CLOSED" (or "CLOSED") position.
• Then proceed in the same way as with other types of devices.

Running in the electric motor

The engine needs to be run in for the first time. Such a procedure will allow you to correctly put the device into operation, as well as have a positive effect on its durability. The break-in begins with a 120-minute operation at 50% load. Initially, it is necessary to regularly (every 240 minutes) control the amount of oil. During the break-in, it must be changed after the first 20 hours of operation.

Power station stop:

1. Carry out a complete shutdown of the load.
2. Let the engine idle for several minutes.
3. Switch off the ignition.
4. Shut off the fuel supply valve.

Tips for regular use:

• The equipment should not be idle for a long time, because this leads to a noticeable decrease in the duration of its uninterrupted operation. Any brand device must be used for at least 120 minutes per month.
• It is highly undesirable to start and stop the device every now and then.
• Models that are equipped with an air cooling system require access to fresh air, especially when used at elevated temperatures.

Before starting a diesel power plant (DPP), it is necessary to carefully check and prepare this unit for operation. It is necessary to inspect the generator, diesel, panels, shields and auxiliary units, and if necessary, eliminate all visible faults. Using a megameter, check the insulation resistance of the apparatus circuit, while the switches must be turned on. The resistance should not be less than 0.5 mΩ.

In the event that the insulation resistance of the DES and the rest of the circuit dropped below 0.5 mOhm, it is necessary to clean the exposed electrical insulating parts from dust, wipe or dry. It may be necessary to dry the entire generator. Also, when preparing the generator for operation, it is necessary to check the level of discharge of the batteries and the serviceability of the ignition system.

The fuel tank must be filled with fuel, while the valve of this tank must be installed in the "Open" position.

You should make sure that there is no air in the fuel system, after that you need to fill all service and additional tanks, it is also necessary to fill with water and the internal circuit of the cooling system (if any) and check the water circulation in the external circuit of the cooling system.

Lubrication, cooling and fuel supply systems must be free of fluid leakage. Tighten clamps, clamps and packing nuts if required.

Before the start itself, it is necessary to check the air damper mechanism and the tightness of absolutely all air cleaner connections.

The position of all switches and switches on the panels, diesel automatics, as well as on the generator control panels, must comply with the operating instructions for the diesel power plant.

The circuit breaker in the mains must be turned off, and the control circuit switch must be set to the "Automatic start" or "Manual control" position.

And only after carrying out all these actions, the DES apparatus is prepared for start-up and subsequent operation. Remember, whether you took or purchased, you must follow these rules before starting this device.

It is possible to start or stop the DPP both manually using the local diesel control panel, and remotely - using the remote control. It is also possible to automatically start and stop the diesel power plant using an automation signal when changes in the control parameters occur in the network or on another device.

Manual start and stop should be carried out in accordance with the instructions. After the unit is started, and the diesel engine is warmed up at idle, its speed should be gradually increased to a maximum. Next, the generator is awakened, and with the help of a frequency meter, the current frequency is set to 50 Hz, when the engine speed changes. Then, turning the resistance knob for setting the voltage, using a voltmeter, the maximum voltage of the generator is set, and after that the generator machine and the load to the generator are turned on. After start-up, the normal operation of the oil and water cooling system is checked. In order to stop the diesel power plant, it is necessary to turn off the circuit breaker, reduce the voltage on the generator itself and reduce the rotational speed, which leads to a complete stop of the diesel power plant.

With remote automatic start or stop, all operations must be carried out in a given technological sequence. If the start is successful, then the "Normal operation" light should light up. In the event that an emergency mode occurs, an alarm or protection is triggered, after which the DPP stops.

With automatic start or stop, everything is much easier. It does not require the intervention of personnel, everything happens with the help of automated well-established processes.

Here, perhaps, are a few basic rules for the operation of DPP. The preparation, start-up and operation of the unit must comply with the factory instructions, whether purchased or leased. But it should be noted that it is much lower than the price of this unit. And renting is the best way out at the initial stage of building your business, or just in everyday life for a while.

At first glance, it seems that there is nothing complicated in this matter. Pulled the cord and the work went. But no, there are some nuances, and to save your time, read this short article, which details the instructions for starting a diesel generator.

What is a decompressor

The compression of a diesel engine is always higher than a gasoline engine. This significantly complicates the rotation of the crankshaft with both manual and electric starters.

A decompressor is a device that simplifies the process of starting a diesel generator set. Pressing the decompressor lever slightly opens the exhaust valve, thereby violating the tightness of the combustion chamber. It is impossible to use this device to stop the engine, this can lead to the destruction of parts of the gas distribution mechanism.

Launch preparation

First of all, unpack the unit and inspect it for external damage. Make sure there are no foreign objects inside.

Locate the oil pressure indicator on the instrument panel of the power plant. This indicator informs us about the presence of oil pressure in the internal combustion engine system. Attention, as long as there is no pressure in the oil system, the unit will not start. Before bleeding the generator fuel system at the first start, make sure that the indicator is off!

Always ground the generator. Grounding provides reliable protection against electric shock.

The diesel generators are supplied with ready-to-use batteries. Connect the power wires to the battery terminals, remembering to observe the polarity.

Next, you need to fill in the required amount of oil. Look in the instructions for your model and find out the brand of oil that suits your particular engine. We recommend using SAE 10W30 engine oils. Unscrew the oil filler plug, measure the required amount and fill the engine crankcase through the oil filler neck.

The operating instructions for each diesel power plant indicate exactly how much to fill. The diesel device is lubricated under pressure, so it is necessary to distribute the oil through the engine oil tolerance system. To do this, squeeze the decompressor and turn the engine crankshaft with an electric starter until the emergency oil pressure lamp goes out.

Further, according to the instructions, it is necessary to fill the tank with fuel and prepare the fuel system for operation. The fuel equipment of a diesel unit is a complex and precise mechanism, therefore it is sensitive to the quality of the fuel. To avoid costly repairs, purchase fuel only at trusted gas stations.

Unlike gasoline, which loses its properties within two months, diesel fuel retains its performance up to six months.
After filling the tank with fuel, open the generator fuel cock. It takes several minutes to fill the fuel system and the filters. Then you need to remove air from the fuel system.

First loosen the high pressure fuel line nut on the fuel pump a couple of turns. While holding the decompression device, turn the engine crankshaft. We do this until the fuel evenly flows out from under the nut without air bubbles. After tightening the nut, do the same operation with the nut on the fuel injector. Now the generator is ready to work.

Detailed instructions for starting the DGU:

Types of starting diesel generators

There are two types of starting in diesel power plants:

Manual start of the diesel generator.

Manual start is redundant and allows you to start the power plant in case of a malfunction of the engine electric start system. This type of start is used in low-power diesel generator sets. Follow the instructions and make sure that the fuel valve is open, turn on the ignition.

We pull the starter handle until a noticeable resistance appears, this corresponds to the top dead center of the engine, return the starter handle to its place. Squeeze out the decompressor and pull the starter handle. It is not the sharpness that is important, but the amplitude and strength of the jerk. Then follow the instructions.



Starting the power plant with an electric starter.

Make sure that the fuel supply valve is open, turn the ignition switch to the ON position. We keep the decompressor pressed, turn the engine crankshaft with the electric starter until it picks up maximum speed, release the decompressor, continuing to rotate the crankshaft.

Unfortunately, it is almost impossible to completely remove the air from the fuel line, so the diesel generator may operate unstably for some time. You can speed up the process of removing air, for this you need to connect a small load after warming up the engine, approximately one third of the rated power.

After warming up the motor, you can connect the load with the circuit breaker turned off.
To make it easier to start the diesel generator in winter, use the preheating button. With its help, the glow plug is turned on, which heats up the air entering the combustion chamber. Keep the button pressed for no more than 8 seconds so that the candle does not burn out.

A diesel generator is a rather complex mechanism. Suppose you have purchased a DGU diesel engine, then a lot of questions arise, how to start the unit for the first time, how to work when the load is connected, what to do in case of equipment breakdown, where to carry out maintenance. Our service center “Rem Tech Service” can help you with all these questions.

Our experienced specialists know almost everything about diesel generators. We will be happy to help you with all the above questions. We do everything professionally, quickly, and most importantly inexpensively. Call by phones:063 202-90-70 097 023-42-42.

Today, using the example of the SKAT installation, we will analyze how to make the first start-up of a diesel generator step by step, connect the load to it, and stop the unit accordingly. So, let's begin.

• We unpack the generator, carefully inspect for external damage.
• We check the complete set indicated in the manual, be sure to make sure that there is nothing inside the installation.
• It is advisable to first of all install the chassis, in the future this will be a huge plus, as this will facilitate the movement of the installation.
• Let us carefully consider the instrument panel, in the upper part there are control and management devices, in particular: the ignition switch, an indicator of an emergency drop in oil pressure and an overload of the unit. What is the top indicator? Upper indicator- this is an oil drop indicator, it tells us about the presence of oil pressure in the internal combustion engine system.

On a note! As long as there is no pressure in the oil system, you will not be able to start the unit. Before pumping the fuel system of the unit, you need to make sure that the oil pressure indicator is off.

Overload indicator, lights up when consumers are connected that exceed the capacity of the diesel generator. Also, on this panel you can see a voltmeter and an hour meter. The latter is very important, as it is able to tell in a timely manner when maintenance is necessary.

• In this option, which we are considering, ready-to-use batteries are supplied. We connect the power wires to the battery terminals, while observing an important condition - we take into account the polarity.
• The next step is filling the crankcase engine (the capacity of which can be found in the technical specifications). We unscrew the oil filler dipstick, measure the amount of oil we need and fill the crankcase (it is advisable to do this through the oil filler neck). Next, install the probe button in place and tighten it well.

Advice! Whether the oil level is sufficient can be determined using the marks on the dipstick. Manipulation to check the oil level should be carried out before each start of the engine.

• The diesel engine is lubricated under pressure, so you need to distribute the oil through the oil system before starting the engine. To do this, squeeze the compressor, and then turn the engine crankshaft with an electric starter. This must be done until the emergency oil pressure lamp goes out.
• Using a decompressor to stop the engine is absolutely not worth it. This can lead to the destruction of parts of the gas distribution mechanism.
• Then, we fill the fuel tank, and prepare the fuel system for operation. To avoid premature repair of the unit, purchase only high-quality diesel fuel. To fill the tank, it is better to use a funnel, which helps not to spill diesel fuel past the filler neck. After filling the tank with fuel, open the filler valve. It is necessary to wait for some time (2-3 minutes) to fill the fuel system and filters.
• The next step is to remove air from the fuel system. First, loosen the high pressure wire fuel nut on the fuel pump for a couple of turns. While holding the decompressor, turn the engine crankshaft. This should be done evenly, until the fuel flows out from under the nut (and it is important to ensure that it is free of air bubbles).
• We do the same manipulation with the nut on the fuel injector. Tighten both nuts.
• After the above operations, your DGU is ready for operation.
• SKAT generators are equipped with both manual and electric starters. Manual start is used when the electric start system of the motor is faulty.
• So, electric start. To begin with, we make sure that the fuel valve is open, we switch the igniter switch to the "on" mode, hold the compressor pressed, turn the engine crankshaft with an electric starter until it picks up maximum speed, release the decompressor, while not forgetting to rotate the crankshaft. It is practically impossible to completely remove air from the fuel line, so the generator engine may operate unstably for some time.
• Consider how to start the unit using a manual starter. We make sure that the fuel valve is in the open state, then turn on the ignition, pull the starter handle until resistance appears, this corresponds to the dead center of the motor, return the starter handle to its place. Then, squeeze the decompressor and pull the starter handle.