How does the fuel dispenser maintain? Users who frequently use fuel dispensers will find, for a long time, that the fuel dispenser has no oil or the flow is too slow. What caused these? The following Wenzhou Bluesky Energy Tech Co., Ltd, manufacturers of fuel dispensers, teach you how to solve the problem of not fuelling the fuel pump.
Cause of the issue
- If the fuel nozzle is seriously blocked or the switch is faulty, the fuel nozzle should be cleaned to remove debris or replaced.
- The filter screen of the fuel dispenser (including the cone filter screen) is severely clogged. The filter should be cleaned to remove debris.
- The overflow valve cannot be closed. Foreign matter (broken shrapnel, etc.) is stuck between the valve core and the valve seat of the overflow valve. As a result, the oil always circulates in the pump and tank and cannot flow out. The valve core should be taken out during maintenance to remove foreign objects on the valve seat.
- When the solenoid valve of the fuel dispenser cannot be opened, and the machine does not deliver oil, First, check the control circuit part of the solenoid valve, For example, whether the light valve board, relay board, or mainboard is damaged, whether the neutral line is connected properly, and then check the solenoid valve itself for failure, Such as whether the coil in the valve is open, whether the valve membrane hole is blocked, etc. Check the exhaust condition of the exhaust pipe of the oil and gas separator under the power-on state. If the exhaust does not stop, it can be preliminarily determined to be a leakage fault in the dispenser pipeline or bottom valve.
Approach
There is debris, iron filings, and other debris in the pipeline of the fuel dispenser. When the oil pump of the fuel dispenser is pumping, the debris, iron filings, and other debris in the pipeline will block the filter of the separator, which will cause the pump to run with no oil or slow oil.
Solution: The separator filter of the fuel dispenser should be cleaned frequently
- The oil pipeline of the tanker is seriously damaged. At this time, a large amount of gas will enter, so that the oil pipeline of the onboard pump cannot form a negative pressure, which causes the pump oil pipeline to be exhausted, and the oil pump sounds light and does not deliver oil.
- The stuck or damaged one-way valve of the oil tank or oil pipeline will also cause the oil pump of the onboard refueling machine to fail to enter the oil.
- Then, check and replace the one-way valve on the fuel pump.
Fuel dispenser maintenance failure analysis flow chart
Steps for routine inspection and maintenance of fuel dispensers
Many gas station customers ask how to perform daily inspection and maintenance of fuel dispensers. Today, I will tell you the daily inspection and maintenance steps for fuel dispensers.
Spot-check whether the oil metering of the fuel dispenser is qualified
- Step 1: Listen to the sound of the fuel dispenser running.
- Step 2: Check that the fire extinguishers are configured.
- Step 3: Check the appearance of the fuel dispenser.
- Step 4: Put on gloves and turn off the power.
- Step 5: Check the fuel nozzles, hoses, and connections.
- Step 6: Open the chassis panel of the fuel dispenser.
- Step 7: Check whether there is leakage inside the fuel dispenser.
- Step 8: Check the electrical parts of the dispenser.
- Step 9: Check the grounding wire and the grounding pole.
- Step 10: Record the rectification of hidden dangers.
Tanks and accessories inspection steps
- Step 1: Check the configured fire-fighting equipment.
- Step 2: Check the floor of the tank farm for subsidence.
- Step 3: Inspect the operating wells and their ancillary conditions.
- Step 4: Check the oil discharge ports and their ancillary conditions.
- Step 5: Check the ventilation pipes and their ancillary conditions.
- Step 6: Check the effectiveness of lightning protection and anti-static devices.
- Step 7: Check the implementation of plaques and regulations.
Portable dry chemical fire extinguisher inspection steps
- Step 1: Determine whether the label is qualified.
- Step 2: Check whether the pressure is normal.
- Step 3: Determine whether the cylinder is deformed.
- Step 4: Check whether the nozzle is blocked.
- Step 5: Check whether the pressure handle is intact.
- Step 6: Whether the seal is intact.
- Step 7: Check whether the hose is cracked.
- Step 8: Check whether the dry powder is caked.
CO2 fire extinguisher inspection steps
- Step 1: Determine whether the label is qualified.
- Step 2: Check whether the pressure is normal.
- Step 3: Determine whether the cylinder is deformed.
- Step 4: Check whether the nozzle is blocked.
- Step 5: Check whether the pressure handle is intact.
- Step 6: Whether the seal is intact.
- Step 7: Check whether the hose is cracked.
- Step 8: Check whether the dry powder is lumpy.
Trolley-type dry chemical fire extinguisher inspection steps
- Step 1: Determine the validity of the range.
- Step 2: Check the pressure and gauge.
- Step 3: Check the switch, plug, and seal.
- Step 4: Check whether the cylinder is not deformed and corrosion-free.
- Step 5: Check whether the nozzle and sprinkler head are in good condition.
- Step 6: Check whether the frame and wheels are normal.
Electrostatic alarm meter inspection steps
- Step 1: Check whether the grounding wire of the electrostatic alarm is firmly connected.
- Step 2: Check whether the connection between the electrostatic alarm and the electrostatic clamp is firm.
- Step 3: Check whether the two cables are aged.
- Step 4: Turn on the product to listen to whether the alarm is alarmed.
Power distribution cabinet inspection steps
- Step 1: Check the fire equipment configuration and integrity.
- Step 2: Check the appearance of the distribution cabinet’s health and integrity.
- Step 3: Check whether the insulating rubber mat is broken or has water stains.
- Step 4: Check the integrity of the bus and down conductor connections.
- Step 5: Check the cable glands for heat and discoloration.
- Step 6: Check that the cable head and the terminal post are firmly connected.
- Step 7: Check the voltmeter, ammeter, and indicator light.
- Step 8: Check the relevant regulations and reminder signs.
- Step 9: Check the integrity of the conversion latching protection device.
- Step 10: Check the marking of the electrical components and their numbers.
- Step 11: Check the components for damage, discoloration, and odor.
- Step 12: Check for traces of discharge in components and connection points.
- Step 13: Check whether the protective ground wire connection is tight.
Level gauge check steps
- Step 1: Check whether the supporting anti-surge regulator is in good condition.
- Step 2: Check whether the buttons on the console of the level gauge are sensitive.
- Step 3: Check whether the display of the console of the level gauge is normal.
- Step 4: Compare the difference between the level gauge, the tank capacity gauge, and the measured data.
- Step 5: Check that the explosion-proof hose in the operating shaft is in good condition.
- Step 6: Check that the cable seals in the operating shaft are intact
- Step 7: Check whether the explosion-proof junction box in the operation well is in good condition.
- Step 8: Check whether the seal of the explosion-proof junction box in the well is intact
- Step 9: Check whether the protective grounding of the explosion-proof junction box is intact.
The above steps outline the daily inspection and maintenance procedures for fuel dispensers.