There are several possibilities for the fuel dispenser not to refuel, and what is the reason why the

The most common ones are motor reversal, computer not working, solenoid valve can not be opened, flowmeter stuck, oil gun, oil pipe, pipeline blockage, air resistance, foot valve opening is not flexible, etc.

The foot valve is composed of the valve body, bonnet, disc, sealing ring and gasket, and the disc of the foot valve has several types such as single lobe, double lobe and multi-valve.

After the foot valve is connected to the pipeline, the liquid medium enters the valve body from the direction of the valve cover, and the pressure of the liquid acts on the valve disc, so that the valve disc is opened to allow the medium to flow through, and when the medium pressure in the valve body changes or disappears, the valve disc closes to prevent the medium from flowing backwards.

Installation method: 1. First of all, remove the wooden support in the valve core before installation, otherwise it cannot be used.

2. It is installed at the bottom of the suction pipe of the water pump, and its vertical state should be ensured during installation.

3. Start: Start the forward diversion pipe for the first time and start it immediately after it is filled with water, resulting in a semi-vacuum state in the suction pipe, and sucking water into the vertical pipe to complete the pumping process.

4. Overhaul: Under normal circumstances, it is not necessary to overhaul. When it is necessary to overhaul, only need to open the middle mouth of the foot valve, replace the rubber pad of the spool, and start it according to the method of starting the pump for the first time after overhaul.

5. If it is used in the fluid with high acid and alkali concentration, you can choose the stainless steel water foot valve, and at the same time, our factory can produce all-plastic water bottom valve or 316L (titanium) water bottom valve according to user requirements.

There are many kinds, the most common ones are motor reversal, computer does not work, solenoid valve can not be opened, flowmeter is stuck, oil gun, oil pipe blockage, pipeline blockage, air resistance, foot valve opening is not flexible, etc., there are too many reasons, and the specific problems are analyzed in detail.

There are many kinds, the most common are motor reversal, motherboard does not work, solenoid valve can not be opened, flowmeter stuck, oil gun, oil pipe blockage, pipeline blockage, air resistance, foot valve opening is not flexible, etc., there are too many reasons, specific problems are analyzed.

Hunan Minxiang Stellar Petrochemical Equipment.

Summary. What is the reason why the gasoline engine can't add the throttle, hello! The reasons why the throttle doesn't add up are:

1. Excessive carbon deposition in vehicles; 2. The quality of the oil is not up to standard; 3. The intake or exhaust system is blocked; 4. Spark plug aging; 5. a lack of cylinder; 6. Insufficient tire pressure; 7. Insufficient engine power; 8. Problems with the combustion chamber, ignition system and valve; 9. The gasoline filter is too dirty, the gasoline pump is damaged, and the three-way catalytic is blocked. The solutions to the car throttle can't be added are: 1. Clean up the carbon deposit; 2. Add regular gasoline; 3. Replace the spark race; 4. Check the tire pressure value regularly; 5. Clean the gasoline filter regularly; 6. Check the gasoline pump.

Hope it helps!

Thank you. What is the reason why the gasoline engine can't add the throttle, hello! The reason why the oil can't be added up:

1. Excessive carbon deposition in vehicles; 2. The quality of the oil is not up to standard; 3. The intake or exhaust system is blocked; 4. Spark plug aging; 5. a lack of cylinder; 6. Insufficient tire pressure; 7. Insufficient engine power; 8. Problems with the combustion chamber, ignition system and valve; 9. The gasoline filter is too dirty, the gasoline pump is damaged, and the three-way catalytic is blocked. The solution to the car throttle is as follows: 1. Clean up the carbon deposit; 2. Add regular gasoline; 3. Replace the spark race; 4. Check the tire pressure value regularly; 5. Clean the gasoline filter regularly; 6. Check the gasoline celery pump.

Hope it helps!

Hello, dear, thank you for your patience, the answer has been found for you, you check it, thank you!

Thank you. You're welcome, if my answer is helpful to you, please give a thumbs up to Yuan Jian (in the lower left corner of the hand-made evaluation), your efforts are very important to me, and your support is also the driving force for my progress. I wish you good health and a happy mood in Hail Potato Pants!

Summary. Hello, I am glad to answer for you that the refueling machine does not take the number of money and liters, but it may be a fault if it can produce oil. When the fault occurs, you observe whether the drive shaft of the meter is still rotating, if it rotates but does not go to the meter, the problem is in the circuit, check the motherboard and sensor.

If the drive shaft of the gauge does not rotate, but the gun is still oiling, and the display does not go digital, so that the gauge is damaged, check the bearing and piston of the gauge, the simple way is to replace the gauge.

Hello, I am glad to answer for you that the refueling machine does not take the number of money and liters, but it may be a fault if it can produce oil. When the accompaniment fails, you observe whether the drive shaft of the meter is still rotating, if it rotates but does not go to the meter, the problem is in the circuit, check the motherboard and sensor. If the drive shaft of the gauge does not rotate, but the gun is still oiling, and the display does not go digital, so that the gauge is damaged and trapped, check the bearing and piston of the gauge, and the simple way is to replace the gauge.

It is also possible that the pipeline and foot valve are faulty: check the exhaust condition of the air-resistant pipe in the oil-gas separator section in the power-on state, if the exhaust does not stop, it can be preliminarily determined that it is a leakage fault of the fuel dispenser pipeline or foot valve. The way to remove it is to infiltrate and dismantle the chip to clear or change the grip of the motherboard.

It may be that the oil-air separator is faulty, or the vane pump is faulty.

The refueling truck is equivalent to a small mobile refueling station, and the mold wax provides services for the vehicles and construction machinery that need to be refueled, so if the refueling machine does not produce oil in the process of refueling truck operation, it may be the failure of the oil and gas separator, the failure of the vane pump, the flow meter is stuck, the solenoid valve of the refueling machine can not be opened, the bottom valve and the pipeline are faulty, and the oil gun is faulty. The reason why the fuel dispenser of the fuel truck does not produce oil is roughly these, if your fuel truck does not produce oil, you can eliminate it one by one according to the above points.

1.Failure of the oil-gas separator: when the oil valve of the oil-gas separator of the fuel truck is stuck, it will cause the fuel dispenser to fail without oil; The blockage of the filter screen of the fuel dispenser will also cause the oil dispenser to fail; If the cone valve of the oil-gas separator is not closed tightly, it will also cause the oil failure of the refueling car machine; The small float of the oil-gas separator enters or falls off, resulting in the inability to form high pressure in the high-pressure chamber, and also causing the fuel dispenser to not produce oil.

2.Vane pump failure: the vane pump relief valve cannot be closed (foreign matter is stuck between the valve core and the valve seat of the relief valve); The shrapnel of the blades in the pump runs with the rotor at high speed for a long time, which will wear and break due to fatigue, resulting in increased blade leakage, and in serious cases, it will cause the fuel dispenser to produce oil; The pump pad on the joint surface of the vane pump and the oil-gas separator breaks down or is reversed, causing the high-pressure cavity of the vane pump to communicate with the low-pressure cavity, causing the vane to lose its oil discharge function, thus causing the fuel dispenser to not produce oil.

3.The flowmeter is stuck: Generally, because impurities enter the copper sleeve of the flowmeter and the piston, causing the flowmeter to be stuck, and the fuel dispenser will not be able to produce oil at this time; The oil quality is poor, and if there are impurities, it is easy to cause the flowmeter to get stuck, and the fuel dispenser will not produce oil.

5.Failure of the foot valve and pipeline: If the oil-gas separator does not stop venting in the boot state, it will cause the fuel dispenser pipeline or foot valve to leak, and eventually the fuel dispenser will not be able to slide out of the oil.

Hello, dear, the fuel dispenser pin starts up normally, but the oil gun does not produce oil. a. The motor is reversed or the conveyor V-belt is loose or broken. The phase sequence of the power supply should be adjusted, the tensioner should be adjusted or the V-belt should be replaced; b. Failure of oil-gas separator; The dispenser filters, including the conical ones, are severely clogged.

The filter screen should be cleaned to remove debris; The oil outlet valve of the oil-gas separator is stuck and does not lose money, causing the oil dispenser to not produce oil. During maintenance, the oil outlet valve should be removed, and the debris should be removed and reinstalled, so that it can move up and down freely; The small float of the oil-gas separator enters or falls off, resulting in the inability to form high pressure in the high-pressure chamber, and also causing the fuel dispenser to not produce oil. The damage of the pressure pad of the upper cover of the oil-gas separator causes the high-pressure chamber to communicate with the atmospheric chamber, resulting in the formation of the high-pressure chamber without high pressure.

Oil pump failure: The oil pump of the fuel dispenser is a key component that pumps the oil out of the oil tank and feeds it into the oil gun, if the oil pump fails, it will cause the fuel dispenser to fail to refuel normally. At this time, it is necessary to check whether the oil pump is working properly, and if the oil pump needs to be replaced, it is recommended to find professional technicians for maintenance.

At this time, it is necessary to check whether the oil gun is working normally, and if the oil gun needs to be replaced, it is recommended to find a professional technician for maintenance. 3.Clogged tubing:

The oil pipe is the pipe that transports oil from the oil pump to the oil gun, and if the oil pipe is blocked, it will cause the fuel dispenser to fail to refuel normally. At this time, it is necessary to check whether the oil pipe is normal and smooth, and if the oil pipe needs to be cleaned or replaced, it is recommended to find professional technicians for maintenance. 4.

The oil pump of the fuel dispenser is a key component that draws the oil out of the fuel tank and feeds it into the oil gun, if the oil pump fails, it will cause the fuel dispenser to fail to refuel properly. At this time, it is necessary to check whether the oil pump is working normally, and if the oil pump needs to be replaced, it is recommended to find a professional technician with Mu Xin for maintenance. 2.

Fuel Gun Failure: The oil gun is the part that transports the oil from the fuel dispenser to the fuel tank of the vehicle, if the fuel gun fails, it will cause the fuel dispenser to fail to refuel normally. At this time, it is necessary to check whether the oil gun is working normally, and if the oil gun needs to be replaced, it is recommended to find a professional technician for maintenance.

At this time, it is necessary to check whether the oil pipe is normal and smooth, and if the oil pipe needs to be cleaned or replaced, it is recommended to find professional technicians for maintenance. 4.The fuel tank level is too low:

If the refueling machine can sometimes be refueled and sometimes cannot be refueled, it is necessary to check the problems of the oil pump, oil gun, oil pipe and fuel tank oil level, etc., if you can't solve it yourself, it is recommended to find professional and technical personnel for maintenance. I hope I can help Qi and your <>

Summary. Hello dear <>

The reason why the fuel dispenser can sometimes refuel and sometimes cannot be refueled is as follows, the oil pump of the refueling machine is faulty or damaged, resulting in the inability to properly refuel. This may require repairs or replacement of the oil pump. Filters or other components in the inlet line may become clogged, preventing fuel from flowing to the dispenser.

Hello dear [Flowers and Flowers]: The fuel dispenser can sometimes be refueled and sometimes cannot be refueled for the following reasons, the oil pump of the refueling machine is faulty or damaged, resulting in the inability to normal** fuel. This may require repairs or replacement of the oil pump.

Filters or other components in the inlet line may become clogged, preventing fuel from flowing to the fuel dispenser. The fuel storage container of the dispenser does not have enough fuel**, or sediment or impurities in the fuel storage container are causing clogging.

The basic principle of the lead car of the fuel dispenser is to pump the fuel out of the storage tank through the fuel pump and accurately measure the amount of fuel filled through the metering device. The refueling gun is connected to a metering device that allows the user to inject fuel into the vehicle's tank. I wish you a happy life!

Xi Qingji hopes that I will be helpful to you.

If the oil gun is faulty, the oil gun filter or joint is blocked, and the oil gun filter and joint should be disassembled during maintenance, and the impurities should be removed and reinstalledThe oil gun is frequently self-sealed, resulting in the oil gun not being oiled. The self-sealing mechanism of the oil gun should be overhauled, such as whether the air inlet nozzle is blocked, etc. 3.

Check and clean the float valve, filter, connecting flange and V-belt in the pump in turn.

Excuse me, but please go into more detail

1.The filter screen of the fuel dispenser is clogged (including the conical filter screen and the oil gun filter screen) 2If the oil gun is faulty, the oil gun filter or joint is blocked, and the oil gun filter and joint should be disassembled during maintenance, and the impurities should be removed and reinstalledThe oil gun is frequently self-sealed, resulting in the oil gun not being oiled.

The self-sealing mechanism of the oil gun should be overhauled, such as whether the air inlet nozzle is blocked, etc. 3.Solenoid valve attendant failure 4

Gear pump failure Pump stuck: check whether there is any foreign matter in the pump, and then clean the relevant parts with oil;The pump does not produce oil: the bridge hand inspects and cleans the float valve, filter, connecting flange and triangular sensitive belt in the pump in turn.