Independent repair of heat guns with diesel fuel

These products are used for heating private garages, workshops, service stations, outbuildings and storage facilities, construction sites - where people do not live. In the event of a breakdown of diesel heat guns, it is quite possible to independently diagnose, determine the cause of the breakdown and repair the unit.

Operating principle

Such guns are often called fan heaters because of the similarity of the principle of operation, but they have certain differences. They act in the same way as other similar products: air flows around the casing of the combustion chamber with a fan and heats the room.

The principle of operation of the heat gun

The design of modern guns includes a special sensor that turns off the device when it reaches a predetermined temperature, thus achieving significant fuel savings.Garage craftsmen make guns that can work on waste oil of different varieties.

Factory or home-made, heaters have some very vulnerabilitiestherefore they need frequent repairs. This is cleaning nozzles and filters, fan replacement and much more. To find out all the vulnerabilities, it is necessary to study the design of such guns.

Important advice! After using the gun and putting it for long-term storage, it is necessary to drain the remaining fuel, and thoroughly flush the tank from diesel residue. Use of long stored fuel is not safe for the product.

Product design

Products with indirect heating method the rooms have chimneys through which all the combustion products are removed, so in practice they can be used to heat residential premises. They are much safer, but use oxygen for combustion, therefore ventilation or periodic airing is necessary. Their power is lower because losses occur through the exhaust system.

Device of diesel heat guns

At the product direct heating all products of combustion remain in the room, so they can not be applied where people constantly live.They are used for heating construction sites and warehouses where there is a natural flow of air, because the lack of ventilation can lead to carbon monoxide poisoning.

All products are equipped powerful body from metal: it eliminates the ingress of foreign objects that may cause damage or become a source of fire. Required fusethat turns off the device when the case is very hot.

For circulation use a compressor or pump of a small size, for discharge into the room - fan, which experts considered one of the vulnerabilities of these products. Inside the case there is a burner and a pipeline that supplies fuel.

The main elements of a diesel heat gun:

• for exhaust smoke there is an exhaust pipe;
• fuel tank located at the bottom of the product;
• pump or compressor driven by an electric motor.

Types of repair

Repair of a diesel installation can cost the user a round sum, because only diagnostics cost from 1000 rubles, depending on the model. Many motorists cope on their own,diagnosing empirically or in a standard way from a simple refusal to a difficult case. Sometimes there are options when the product does not work normally just because it jumped off. valve spring, it remains permanently closed - there is no air flow into the combustion chamber. As a result, and the gun stalls.

Fan motor

This breakdown is determined simply - there is no movement of warm air. We begin a visual inspection of the motor: first we clean the terminals, then call the motor winding using an analog tester. Check and winding insulation. In some cases, in order not to waste time, it is easier to install new enginethan to test the old.

Replacing nozzles

This is a very important detail: the functionality of the whole product depends on its high-quality work, because it sprays diesel in the combustion chamber, thereby ensuring complete combustion of the fuel. Nozzles rarely fail, and you can buy these spare parts for diesel devices in any store selling heat guns.

Fuel filter

Sometimes the diesel gun stops working because there is no fuel supply to the injectors due to clogged filter.Open the device, unscrew the plug, take out the filter element and wash it in clean kerosene. Then it can be blown off with compressed air and set in place.

Fan

According to the statistics of all faults, a fan failure often occurs - it is it that is subjected to intensive wear during the operation of the product. There is a reflow insulation wiring or its burnout: in this case it is easy to change the wires, but if mechanical stress or wear is detected, then the fan must be replaced.

Mostly heat guns are equipped with fans low powerTherefore, finding a replacement for them is not difficult - just visit a specialized store and choose a product based on the performance of your device.

The user needs to remember that all encountered failures require an individual approach, but there is nothing supercomplex in the details of the diesel gun. Therefore, repairing a heat gun with your own hands is subject to any home craftsman - you just need to have the desire and some free time.

Security measures when using guns

To ensure fire safety measures, the tank with the fuel reserve for the product must be at a distance of 8 meters from heating appliances or any sources of open flame.

Remember! You cannot use gasoline of any brand instead of diesel: the probability of an explosion increases many times because it is more volatile.

Security measures when using guns are quite simple - you must immediately leave the premises if you feel:

• sudden and severe dryness in the mouth;
• pain in the throat, nose, or eye area;
• sudden headaches;
• the urge to nausea.

Many people react very painfully to carbon monoxide indoors: for example, people with lung diseases or cardiac patients suffering from anemia, pregnant women. They are contraindicated to be where used diesel heat gun with direct heating.