The sub engine of the sweeper cannot be turned off, what problems should be paid attention to when u

1. At low temperature, due to the increase of electrolyte viscosity, the permeability decreases, and the resistance increases and the output power is reduced, which makes it difficult for the starter to drag the engine, and the minimum starting speed cannot be reached, which affects the engine start. If the engine does not rotate or the speed is very slow when the car is ignited, it is very likely that the battery is dead or malfunctioning. You should find a battery with electricity and connect it to the car and try to light it.

2. Due to the low voltage of the battery terminal caused by low temperature, the spark of the spark plug is weak, and the density of the mixture increases the resistance between the electrodes, which makes it difficult to ignite the mixture and make it difficult to start the engine. At this time, check the spark plug to see if it is aging or heavy carbon deposits, and replace it with a new one if necessary.

3. Some old vehicles, oil pipes and other serious aging, the vehicle can not keep up with the oil when starting, often resulting in no ignition, so when ignition, you should step on the accelerator slightly to make the gasoline cycle faster, so that it is easier to hit.

4. Fill fuel in time. Some vehicles have inaccurate fuel gauge pointers, and when the fuel gauge is red light, fuel should be added in time. Otherwise, it will be difficult for the vehicle to catch fire if it can't keep up with the oil, especially in winter, when the temperature is very low.

5. If it is a diesel car, the situation of not catching fire in winter is more serious, the main solution is to replace the diesel in advance, especially the old diesel car, when the ambient temperature is about 0 degrees, it is recommended to replace the diesel of negative 10; When the ambient temperature is below minus 5 degrees, it should be replaced with minus 20; When the ambient temperature is lower, replace it with a diesel fuel of minus 30.

Sweepers generally have the following faults and solutions:

1. The auxiliary engine of the road sweeper can be started, but the hydraulic pressure is not responding, first check the hydraulic oil, then check the relief valve line, electromagnetic oil pump line, and see if the main oil inlet circuit is blocked.

2. If the engine cannot be started, check the extinguishing line insurance, check whether the diesel inlet pipe is damaged or blocked, and overhaul or replace the above parts.

3. The water temperature of the engine is high, and the cause of the failure: insufficient oil or thermostat failure, fill with antifreeze, check whether the thermostat wire has fallen off, or replace the thermostat.

4. The suction cup garbage is not clean: the sealing of the suction port of the fan is not strict or the seal of the back door is not tight, check whether the suction hose is damaged, whether there is a gap between the rubber skin and the ground after the suction cup falls, and the above situation occurs, check and adjust, replace the sealing strip, and adjust the gap between the rubber skin and the ground by 3-5mm.

5. Check the oil for 10-12 months to check that the oil has turned white or deepen, and replace the hydraulic oil (46 in summer and 32 in winter).

6. Adjustment of the tensioner belt of the sweeper fan: adjust the tensioner wheel, and it is advisable to drop the center of the compressed belt by about 15mm.

7. Water filtration is the easiest place to be ignored, according to the water quality of the water source in 5-7 days, after the water filter is blocked, the water supply is insufficient, which is easy to cause damage to the water pump.

In the fault mode of the vehicle, the engine of the IG relay is unplugged and the engine is still not turned off, which is caused by the internal ablation of the IG relay and the failure of the PEPS module.

In the fault mode of the vehicle, there is a 12V power supply voltage on the fuse of the measured instrument electrical box IF02 (EMS), and the engine turns off after the fuse is unplugged, indicating that the front part of the fuse, that is, the IG electricity, is always in the state of wake-up operation.

In the fault mode of the vehicle, when the fuse of the IF01 (sunroof controller) of the instrument electrical box is unplugged, the engine is turned off, and the front-end power supply voltage of the IF02 fuse is measured to be 0V.

Check the relevant wiring from the sunroof controller to the instrument electrical box, and find that there is corrosion in the wiring harness at the left A pillar, and check the relevant circuit diagram and find that the two corroded pins are the sunroof controller accumulator power supply (B+) and the sunroof controller on gear power supply (IG), and the test engine can be turned off normally after dealing with the wiring harness plug. Further check that there is leakage in the sunroof drain pipe, the wiring harness plug is corroded by water, treat the sunroof drain pipe and the sunroof frame joint, and treat the plug after the commissioning.

The engine cannot be turned off, it is possible that the power supply of the flameout solenoid valve is not completely cut off or the key switch is stuck, the flameout solenoid valve is damaged or the paddle is deformed. It is also possible that the single pump is stuck or the rack of the engine governor is stuck or deformed. Here's what you need to know about ruling out the reasons for engine stalling:

1.Start circuit: Check that the starting circuit is energized normally and that there is no lag in the starting key switch.

2.According to the customer's feedback and on-site test machine, there is no speed loss phenomenon when the roller is working and the manual flameout is normal, which can prove that there is no stagnation of the single pump of each cylinder.

3. Flame-out solenoid valve: Replace the new flame-out solenoid valve with a new flame-out solenoid valve through a regular installation method, and the engine still cannot automatically turn off after being energized.

4. The engine parking pull plate feels that the rack elasticity is not enough by toggling the engine parking pull plate, and some can be judged to be the engine governor rack hairpin or deformation, resulting in damage to the flame-out solenoid valve, so that the engine can not automatically turn off.

In the fault mode of the vehicle, the engine of the IG relay is unplugged and the engine is still not turned off, which is caused by the internal ablation of the IG relay and the failure of the PEPS module.

In the fault mode of the vehicle, there is a 12V power supply voltage on the fuse of the measured instrument electrical box IF02 (EMS), and the engine turns off after the fuse is unplugged, indicating that the front part of the fuse, that is, the IG electricity, is always in the state of wake-up operation.

In the fault mode of the vehicle, when the fuse of the IF01 (sunroof controller) of the instrument electrical box is unplugged, the engine is turned off, and the front-end power supply voltage of the IF02 fuse is measured to be 0V.

Check the relevant wiring from the sunroof controller to the instrument electrical box, and find that there is corrosion in the wiring harness at the left A pillar, and check the relevant circuit diagram and find that the two corroded pins are the sunroof controller accumulator power supply (B+) and the sunroof controller on gear power supply (IG), and the test engine can be turned off normally after dealing with the wiring harness plug.

Further check that there is leakage in the sunroof drain pipe, the wiring harness plug is corroded by water, treat the sunroof drain pipe and the sunroof frame joint, treat the plug, and determine the troubleshooting after the test.

The reason why the turbocharged engine of a road sweeper cannot be turned off immediately!

After running the road sweeper engine at high speed for a long time, it should idle for 3-5 minutes before turning off. When the engine of the road sweeper is working, a part of the oil is supplied to the rotor bearing of the turbocharger for lubrication and cooling. After the sudden shutdown of the engine of the running road sweeper, the oil pressure drops rapidly to zero, and the high temperature of the turbocharger part of the road sweeper is transmitted to the middle, and the heat in the bearing bearing bearing shell cannot be quickly taken away, while the rotor of the road sweeper turbocharger is still rotating at high speed under the action of inertia.

Therefore, if the engine of the road sweeper is suddenly stopped in a hot state, the oil trapped in the turbocharger of the road sweeper will overheat and damage the bearings and shafts. In particular, it is necessary to prevent the road sweeper from suddenly turning off after slamming the accelerator a few times.

For example, the brush is entangled in filaments, causing the brush to not move, the garbage can not be cleaned normally**, the battery is empty, and the sweeper cannot walk.

Walk-behind non-powered sweeper.

The electric sanitation sweeper reminds everyone that, first of all, only the use of the battery and charger recommended by the manufacturer can better ensure its normal operation. When using the battery, it is necessary to follow the instructions of the battery's instructions, and to make sure that the appropriate fuse is installed and that you understand the regulations regarding the disposal of the battery.

Secondly, if the battery is depleted, it must be charged as soon as possible, and it is forbidden to store it for a long time without electricity. Keep the battery clean and dry to prevent current leakage and metal dust contamination.

Again, do not put tools or similar items on the battery to prevent the occurrence of short circuits or even the danger of **. It is forbidden to work in the presence of open flames, and any room close to the battery or charging such as sparks or cigarette butts is dangerous.

The wear and tear of the sweeper brush is mainly caused by the improper use of the work, when cleaning the garbage, the sweeper is judged to drive forward at a certain cleaning speed, and the sweeping brush tilting device makes the friction between the sweeper and the air become intermittent friction, so that the heat of the brush during the work can be prolonged and can better dissipate heat, and the wear of the sweeping brush is effectively reduced. However, the angle of inclination of the brush will have an impact on the wear of the brush, and too large or too small the angle of inclination will inevitably increase the wear of the brush. The size of the core grip at the angle of the brush inclination will also have an impact on the cleaning effect.

The sweeper must not stop the maintenance of it after a certain period of work, do not underestimate the maintenance work, the maintenance is to extend the working time of the sweeper, if you do not maintain the sweeper or take the wrong operation method, it will make its working time shorter. So what are the ways and means of maintenance of sweepers?

First of all, it is necessary to carefully check whether its parts are damaged, any part of the problem will affect the normal operation of the whole body, such as garbage cleaning is not in place will also affect its normal operation. Therefore, the maintenance of the sweeper cannot be ignored, and do not give up the maintenance of the sweeper due to some minor problems, which every operator needs to pay attention to.

If there is a fault with our electric sweeper, please contact our technician immediately, our technician will **guide**, if **can't be solved, the technician will go over to repair.

After purchasing the sweeper, our technicians will guide how to maintain, how to use, simple failures, how to deal with them, please don't worry too much, rest assured to purchase.