Why does the Kubota 688 harvester vibrate when the engine is turned off

1. It may be that there is too much carbon deposit, which will cause premature ignition and deflagration, shorten the service life of the engine, and greatly reduce the power and economy of the engine;

2. There is carbon deposit on the working surface of the valve and its seat ring, which will cause the valve to be closed tightly and leak, and the engine is difficult to start, weak to work and the valve is easy to ablation.

3. The deposition of carbon in the valve guide and valve stem will accelerate the wear of the valve stem and valve guide, and even cause the valve stem to move astringently and jam in the valve guide, resulting in the failure of sticky valves;

4. The carbon accumulation in the piston ring groove will make the piston ring side gap and back gap smaller, and there will be no gap, causing the piston ring to lose its elasticity and pull the cylinder; The carbon deposition of the fuel injector will cause the difference in the amount of fuel injected by the fuel injector of each cylinder, resulting in engine shaking or car chaos;

5. When the spark plug has too much carbon, it will cause the spark plug to leak and not work, and the engine shakes and other failures.

Slightly better designed passenger cars, because the engine mounts are better matched, the whole vehicle NVH is done well, and when the engine is turned off and stopped, the driver and passengers do not feel the shaking of the car body at all.

In general, the front and rear direction vibration is caused by the engine pitching vibration, which can be improved by improving the stiffness of the rear mount; The oscillation in the left and right directions is due to the mismatch of the stiffness of the left and right mounts, and generally the powertrain yaw occurs due to the small stiffness of the engine side mounts.

Solution: Change the rigidity of the engine mount to make it softer, so that the vibration of the engine is isolated from the vibration between the car body, so as to avoid the resonance of the car body when the engine is low (below idle).

The engine crankshaft is reduced from idle speed of 700r min (general vehicle) to 0, and there will be torque fluctuations, which will lead to the shaking of the engine itself. Test angle: By arranging two vibrations on the steering wheel and the body floor, and one vibration is distributed for each of the active and passive suspension measurements, it can be judged by the amplitude which suspension has the problem.

What should I do if the car is buried and the car does not catch fire?

Many car owners are very anxious when they suddenly encounter a car that does not catch fire, and their first reaction is that the car is broken. In fact, most of the car does not catch fire is caused by human factors, in many cases can be solved by yourself, below, we will take a look at the reasons and solutions for the car not catching fire.

1. Human operation reasons: the battery is out of power, the fuel tank is out of oil, and the gear is wrong.

Many of the reasons why we usually come into contact with not igniting are caused by improper operation, such as running out of oil, running out of electricity, and wrong gear, and these situations are quite common.

The first type: out of gas. We went out to rescue a car before, and the fuel gauge showed that it was below the red line, so naturally it could not catch fire.

The second type: the battery is out of power. It may be due to the loss of power or the expiration of the battery life due to the long-term headlights have not been turned off, and it is generally recommended to replace the battery in time after 2 years.

In addition, the installation of xenon headlights, high-power audio, etc. are also the causes of vehicle circuit failures. The situation of the vehicle without power is easy to check, just press the horn to know.

The third type: the gear is wrong. When the automatic transmission car starts, the gear must be placed on the P or N gear, if it is placed on the R or D gear, it will not ignite. There are also some manual transmission cars that will not catch fire if you don't step on the clutch.

The reasons and solutions for the old fire of the car not bending.

2. Reasons for the use of sail vehicles: improper oil, no antifreeze, and excessive carbon deposit.

In addition to the reasons for improper human operation, there may also be motor failure, or oil pump oil supply, fuel injector problems, sensor failure, etc., encountering these more complex situations, need to be dealt with by professionals. However, pay more attention to the following items when using a car to avoid these complex situations.

First, there is the issue of oil products. When we used to repair the car, we found that there was water and mud in the fuel tank after disassembling it, and with such oil, it was impossible for the car not to break. Therefore, remind the owner to be sure to go to the regular gas station to refuel, and you can bring a gauze wrapped in the muzzle of the refueling gun to filter impurities.

Second, no antifreeze is added. Some car owners add water or inferior antifreeze to the car, resulting in a particularly cold winter, causing the entire waterway to be frozen, the engine to be frozen and cracked, resulting in the car water pump can not operate, can not catch fire, and injure other parts of the engine.

Too much carbon in the vehicle will also cause the vehicle to not catch fire, and the solution is to run at high speeds to reduce the carbon deposit. In addition, there is a small trick for not ignition, before starting the ignition, first screw the key to the ON switch, and then turn it back, and then turn on the strat switch to ignition, let the computer run to calculate the water temperature and the appropriate air intake, and the ignition will be smoother.

When the Kubota 688 harvester was ignition, the starter did not react.

Hello, glad for you this question, Kubota 688 not starting may be a circuit fault and oil circuit failure. The circuit failure leads to the inability to hit the car, which is mainly manifested in the fact that the ignition switch is not responded to or the speed of the boot motor is too low, and you can feel the feeling of weakness. If the engine is faulty if you can hear the powerful rotation of the starter motor when you unscrew the start key, and there is no abnormal sound of mechanical friction in the engine, then the oil circuit can be judged to be the cause of the oil circuit.

The inspection of the oil circuit of the direct injection vehicle is simpler than the circuit, and the inspection of some electronically controlled high-pressure common rail engines is more complicated. It is recommended to bring the warranty card to the local dealer for repair.

Hello dear, the reason and solution for the long-term rental of the Jimbota 688 harvester when the oil is collected and the solution is: the engine speed gradually decreases before the ignition, and the exhaust pipe emits black smoke. The reason for this failure is mostly due to the blockage of the working parts of the combine harvester.

In this case, you should first check whether the working parts such as the combine harvester header and the rolling drum are blocked. If there is a blockage, the engine can generally be restarted after the blockage is cleared. It should be noted that the engine due to poor lubrication, the shaft burning accident, will also produce this sign, in this case, the engine should be removed for overhaul of the engine.

Summary. Hello dear <>

If the engine is forced to ignite, the lubrication effect will become very poor, and the serious will cause the engine to burst because there is no lubrication effect, and the less oil, the more serious the consequences. When the engine starts again, dry friction or semi-dry friction forms between the cylinder and the piston, which accelerates the wear of parts and increases the resistance to starting, making it difficult to start. The symptoms of running out of oil are:

The oil light on the dashboard will be on; The water temperature is high and the valve is ringing; There will be a banging sound in the engine. Engine oil is the engine lubricating oil, which can lubricate and reduce wear, assist cooling and cooling, seal leakage, rust and corrosion, shock absorption and cushioning for the engine.

What is the reason why the Kubota 588 harvester does not ignite.

Hello dear <>

You have to check the positive line of the motor, that is, there is a plug with the test lamp core, one finger is scattered, and the other end of the iron is used to measure the line. You're going to unplug the measurements. If a person turns on the key to the motor in the car, the motor will generally turn on, and if the light is not on, the starting relay and fuse must be checked.

If the light is on, change the starter.

No response to power-on.

Turn on the lights. Hello dear <>

Kubota engine does not ignite the cause of the failure analysis, fault check maintenance plan: 1 Make sure there is enough fuel in the fuel tank. Check the fuel system for leaks.

Check whether there is any serious bending in the fuel line between the fuel tank and the fuel transfer pump. Check the fuel system for air-closed air. Check the fuel pressure.

At full load, the output pressure of the fuel transfer pump is (240+35)kpaIf the fuel pressure decreases, install a new fuel filter element. Check that the fuel bypass valve is free to move and, if necessary, install a new fuel bypass valve.

2 Find out the air leaks in the fuel system and fix the suspected air leaks. Remove air from the fuel system. 3 Install new fuel lines.

4 Adjust the valve clearance.

Is there a master switch?

Hello dear <>

If the engine lacks oil, it is necessary to add oil in time, such as a hole to let Gao Guo force the ignition to continue to open, the lubrication effect will become very poor, and the serious will cause the engine to burst because there is no lubrication slip effect, and the less oil the more serious the consequences. When the engine starts again, dry friction or semi-dry friction forms between the cylinder and the piston, which accelerates the wear of parts and increases the resistance to starting, making it difficult to start. The nanometer symptoms of running out of oil are:

The oil light on the dashboard will be on; The water temperature is high and the valve is ringing; There will be a banging sound in the engine. Engine oil is the engine lubricating oil, which can lubricate and reduce wear, assist cooling and cooling, seal leakage, rust and corrosion, shock absorption and cushioning for the engine.

Summary. Hello, I'm very honored with your question, I hope mine can help you!

If the starter does not rotate, check the circuit and whether the total fuse is burned. The starter is working properly to see if the engine has diesel. Normally, check to see if the diesel fuel tank cap is clogged with something.

Whether the flame-out pull wire is in place. In addition to the above situation, it is basically an engine problem. If you have a problem with the engine, you have to find the relevant maintenance personnel to fix it.

In addition, it is recommended that you try several times first, if it has not been able to play, it is possible that there is a problem with the machine.

What is the reason why the Kubota 588 harvester does not ignite.

Hello, I am very honored to ask you this question, and I hope that I can help you! If the starter does not rotate, check the circuit and whether the total fuse is burned. The starter is working properly to see if the engine has diesel.

Normally, check to see if the diesel fuel tank cap is clogged with something. Whether the flame-out pull wire is in place. In addition to the above situation, it is basically the question of the motivation of the slag shed.

If there is a problem with the engine, you can only find the relevant maintenance personnel to repair it. In addition, it is recommended that you try several times first, if it has not been able to play, it is possible that there is a problem with the machine.

The engine did not react.

If there is no problem with the circuit, then look at whether the fuel tank cover is plugged, including whether the flame-out cable is in place, if these are all right, that is, your engine is in addition to the fault.

If there is a problem with the engine, it is estimated that it is not something that you can repair personally, so it is recommended that you go directly to the maintenance master.

It is a circuit fault and an oil circuit fault.

The circuit failure causes the car to not be able to hit, which is mainly manifested in the fact that the ignition switch is not responded to or the speed of the starting motor is too low, and you can feel the feeling of weakness.

If the engine is not abnormally mechanically rubbing, then it can be roughly determined that the oil circuit is the cause if you can hear the powerful rotation of the starter motor when you unscrew the start key, and there is no abnormal mechanical friction sound of the engine. The inspection of the oil circuit of the direct injection vehicle is simpler than the circuit, and the inspection of some electronically controlled high-pressure common rail engines is more complicated.

It is recommended to bring the warranty card to the local dealer for repair.