The walk behind tractor engine was ignited without depressurization 10

The decompression mechanism needs to be adjusted.

The decompression shaft handle can be lifted up to the highest level to open the intake valve, and the intake valve is not against the top of the piston, and then tighten the lock nut of the decompression shaft sleeve. A walk-behind tractor is a type of small tractor. In Europe and the United States, it is called a garden tractor.

It is a multi-purpose mobile machine composed of engine, chassis, electrical and other systems, which is mainly used for traction and transportation.

The driving wheel that can drive the tractor can rely on the power of the internal combustion engine through the transmission system, and then the driving wheel that obtains the driving torque through the tire pattern and the tire surface to the ground is small and backward horizontal force (tangential force), and this reaction force is the driving force that pushes the tractor forward (also known as feeding propulsion).

Walking tractor rotary tiller operation skills

Careful inspection of the locomotive before use can eliminate hidden dangers and effectively prevent accidents. Generally, the diesel engine and chassis should be checked for oil leakage, air leakage and water leakage. Check whether the diesel engine cooling water is sufficient.

Check the oil pan lubricating oil level height and its quality. Check the oil level of the transmission gear oil. Unscrew the oil detection plug on the box, so that the gear oil can overflow from the screw hole, and add it when it is insufficient.

Check the tension of the V-belt. The belt is too loose and should be adjusted. Check your tire pressure.

If the air pressure is too low, it should be made up.

What you want to say may be that there is no decompression, and you can't shake the ** motor to start with a crank, right?

This requires adjusting the pressure reducing mechanism: 1. Remove the engine valve cover; 2. Rotate the flywheel so that the piston is at the compression top dead center (when the intake valve is closed, the flywheel rotates about half a turn again - the top dead center line to the edge of the flywheel is aligned with the top line of the water tank); 3. Install the valve cover and tighten the fixing nut; 4. Loosen the lock nut of the decompression shaft sleeve on the valve cover, rotate and adjust the position of the decompression shaft sleeve, so that the decompression shaft handle can open the intake valve when it is lifted up to the highest, and the intake valve does not top the piston top, and then tighten the lock nut of the decompression shaft sleeve.

Take it for repair and install a decompression wrench.

Summary. It is difficult to start and does not start caused by air in the oil circuit.

Once air enters the diesel supply system, the diesel engine will be difficult to start. When the low-pressure oil circuit from the diesel tank of the tractor to the engine fuel pump section infiltrates into the air, the vacuum degree in the pipeline will be reduced, so that the suction force of the diesel in the diesel tank will be reduced, and some will also be cut off, resulting in the diesel engine starting difficulty or inability to start. In this case, the air in the oil circuit needs to be removed.

Elimination method of oil channel air: loosen any deflation screw plug on both sides of the fuel injection pump, press the hand oil pump by hand until the discharged diesel fuel is continuous, unobstructed and free of air bubbles, and then tighten the deflation screw plug to press the hand oil pump back to its original position and lock.

What is the reason why the walk-behind tractor does not catch fire.

It is difficult to start and does not start caused by air in the oil circuit. Once air enters the diesel supply system, the diesel engine will be difficult to start. When the low-pressure oil circuit from the diesel tank of the tractor to the engine fuel pump section infiltrates into the air, the vacuum degree in the pipeline will be reduced, so that the suction force of the diesel in the diesel tank will be reduced, and some will also be cut off, resulting in the diesel engine starting difficulty or inability to start.

In this case, the air in the oil circuit needs to be removed. Elimination method of oil channel air: loosen any deflation screw plug on both sides of the fuel injection pump, press the hand oil pump by hand until the discharged diesel fuel is continuous, unobstructed and free of air bubbles, and then tighten the deflation screw plug to press the hand oil pump back to its original position and lock.

Precautions for walking tractor can not start, the ambient temperature is too low, when the ambient temperature is below 15 degrees, the tractor is parked for too long, and the engine is completely cooled, the engine is not easy to start. Low temperature, air in the oil pipe, valve leakage, piston ring wear, etc. The ambient temperature is too low, the diesel quality is poor, etc.

The reason for the difficulty in engine starting is that the temperature is too low in winter, the valve wear clearance is too large, the piston ring and cylinder block wear pressure is reduced, the plunger fuel injector is worn, the injection time is delayed or advanced, etc. The reason may be due to low ambient temperature, diesel problems, oil circuits, improper engine adjustment, or low cylinder pressure. It is caused by insufficient compression pressure of the cylinder; Fuel is caused by a faulty fuel; Caused by a malfunction of the lubrication system; Caused by low start-up revolutions.

Hello dear <>, what is the reason why the walk-behind tractor cannot catch fire (1) Fault phenomenon: turn on the ignition switch, turn the ignition switch to the starting position, and the engine cannot start. (2) Possible causes of failure:

a.The engine cannot rotate or rotates too slowly due to the failure of the starting system: the battery is not stored enough, the electrode pile clamp is loose or the electrode pile is seriously oxidized; The main fuse of the circuit is broken; Ignition switch failure; starter failure; The starting line is broken or the line connector is in poor contact.

b.Ignition system failure: The ignition coil works poorly, resulting in weak or no high-voltage sparks; ignition failure; The ignition time is incorrect.

Dear, hello <>, I'm glad that your problem walk-behind tractor can't catch fire 2, when the diesel label is not appropriate, the viscosity is too large, and it is not easy to flow, which will make the oil pump unable to suck oil, causing difficulty in starting. Diesel fuel should be used correctly according to the area of the season, and the applicable season of several commonly used light diesel oil is: No. 0:

From April to September in the country, the south of the Yangtze River is winter. No. 10: Winter south of the Great Wall, severe winter south of the Yangtze River.

3. If there is not enough diesel fuel entering the cylinder, the engine must be difficult to start. The reason for this is that the oil circuit is not passable. You should check whether the fuel tank switch is on first.

Then remove the mud from the fuel tank cap and keep the vent or snorkel open. If there are air bubbles in the oil flow, it means that air enters the oil circuit, forming an air block, which reduces or stops the fuel entering the cylinder, causing difficulty in starting.

Summary. Kiss! The reasons for this phenomenon are: First, the installation position of the throttle lever and the connecting plate assembly is improper, and it cannot be guaranteed that when the throttle handle is in the minimum position, the speed control handle is just in the top position.

Second, the installation position of the throttle connecting piece is improper, and its small head is up or to the left, resulting in insufficient preload of the torsion spring, and when the throttle handle is in the oil stop position, the connecting plate assembly does not have enough power to pull the speed control handle to the uppermost oil stop position, so the throttle cannot be closed.

In this regard, I recommend that you first insert one end of the torsion spring into the small hole of the connecting piece and put the torsion spring and connecting piece on the assembly. Then the fastening bolt is passed through the assembly and preliminarily tightened on the body. Then twist the torsion spring with your left hand, that is, apply a preload to it so that the small end of the connecting piece is about 15° lower left.

Finally, tighten the bolts to secure the assembly.

The walk-behind tractor starts and turns off.

Kiss! The reason for this phenomenon is that the installation position of the throttle lever and the connecting plate assembly is improper, and it cannot be guaranteed that when the throttle handle is in the minimum position, the speed control hole sock handle is just in the most macro position.

Second, the installation position of the throttle connecting piece is improper, and its small head is up or to the left, resulting in insufficient preload of the torsion spring, and when the throttle handle is in the oil stop position, the connecting plate assembly does not have enough power to pull the speed control handle to the uppermost oil stop position, so the throttle cannot be closed. In this regard, I recommend that you first insert one end of the torsion spring into the small hole of the connecting piece and put the torsion spring and connecting piece on the assembly. Then the fastening bolt is passed through the assembly and preliminarily tightened on the body.

Then twist the torsion spring with your left hand, that is, apply a preload to it so that the small end of the connecting piece is about 15° lower left. Finally, tighten the bolts to secure the assembly.

Kiss! I sincerely wish you good health and all the best.

Hello, brother Min Oak because I saw that you rated my last time I didn't take Kai, I am very concerned about your experience. If you are satisfied with my service, I hope you can give a thumbs up! If there is a problem, I am always waiting for you.

I wish you a happy life and a happy life!

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Hello! Dear, I'm glad for your question, what's going on with the decompression when the tractor starts to help you find out: because when starting, you need to pull up the pressure reducing valve to make the exhaust valve open, so that the gas in the compression stroke is discharged from the exhaust valve, there is no compression effect, and the resistance can be reduced.

What's going on with decompression when the tractor starts.

Hello! Dear, I'm glad you have a question, what is going on with the decompression when the tractor starts, help you find out: because you need to pull up the pressure reducing valve to make the exhaust valve open when starting, this ante grip regrets leaking in the compression stroke The gas is discharged from the exhaust valve, there is no compression effect, and the resistance can be reduced.

Kiss. Because when starting, it is necessary to pull up the pressure reducing valve first to make the exhaust valve normally open, so that the gas is discharged from the exhaust valve in the compression stroke, and there is no such as the effect of high compression slag ruler, which can reduce the resistance.

Close the simple exhaust valve, complete the power stroke, and start the engine. When starting, you need to pull up the pressure reducing valve first to make the exhaust valve open, so that the gas is discharged from the exhaust valve in the compression stroke, and there is no compression effect, which can reduce the resistance. Reduced starting resistance for easy engine starting.

When starting, you need to pull up the pressure reducing valve first to keep the exhaust valve open, so that the gas is discharged from the exhaust valve during the compression stroke, and there is no compression effect, which can reduce the resistance.

After shaking up, the oil pump and the fuel injection system work in turn under the rotation of the engine, and the flywheel also has enough moment of inertia, at this time, release the pressure reducing valve to release the exhaust valve, and close the exhaust valve normally in the next compression stroke, and a large amount of air can be compressed in the cylinder, and the temperature and pressure in the cylinder at the end of the compression stroke are rising, and the rotational resistance increases sharply.

However, due to the moment of inertia of the flywheel and the strength of the arm, this resistance can be easily overcome, so that the piston continues to compress, and then the fuel injector is still injected normally, and the thrust is generated by combustion after encountering high temperatures, which pushes the engine to continue to rotate, and the engine starts like this.