What s the deal with the slow walking of the loader

The reason is that the friction piece is slipping.

First of all, check whether the pressure of the walking pump is normal and whether the temperature of the gearbox is normal.

Whether the hydraulic transmission oil is sufficient, if the normal continue to check whether the gear and reverse gear are like this, whether the gearbox has abnormal noise when walking, disassemble the oil bottom of the gearbox to check whether the metal falls off, and preliminarily suspect that the gearbox or the two shafts are damaged.

Engine if power is ok.

1.That's the torque converter.

2.The performance of the gearbox beyond the clutch declines, it is a key component in the transmission of power, generally used for more than two years, my analysis is that the gearbox is more likely.

Let's check it out specifically.

First of all, look at whether the forward and backward are weak, if they are powerless, it means that the problem is not in the gearbox but in the torque converter, travel pump and pressure limiting valve, if the single gear is weak, it is the gearbox.

1. Check the transmission oil and filter element to see if there are any copper or aluminum dust and other things. (If there is copper dust, it may be a problem with the gearbox, if it is aluminum dust, it may be a problem with the torque converter, or it may be a problem with the transmission pump (it depends on what material the transmission pump housing is.) ））

2. Look at the pressure limiting valve, if the pressure is very low, it will also be weak to walk.

3. You can use the alternative method to replace the peripheral parts, don't easily find the gearbox and torque converter, you must know that disassembling once is more harmful than the normal use of 1,000 hours.

InGearboxUnder the premise of no failure, the forklift is weak to walk, then it may be that the hydraulic transmission oil is too small. Check whether the pressure of the travel pump is normal and whether the temperature of the gearbox is normal.

If all of the above are normal, then it is possible that the following conditions are:

1. Check whether the gear and reverse gear are the same, and whether the gearbox has any abnormal noise when walking. Disassemble the transmission oil bottom and check if the metal has come off. If there are metal chips, it means that the accessories inside are damaged, and it is recommended to call a professional for repair.

2. The gear pump is broken.

3. The distance converter or the second axis is damaged.

4. Check the sealing ring of the front shaft of the lower clutch hub.

5. Check whether the conveyor shaft falls off or breaks, because the forklift is a four-wheel drive hole section, if it falls off and can be broken, then it will cause the shovel to walk weakly.

Operation. 1) Before driving and operating, the operator should be familiar with the various performance, structure, technical maintenance, operation methods of the loader, and operate according to the regulations.

2) Passengers are strictly prohibited on board except outside the cab.

3) When unloading into the car, the bucket must be lifted to a height that will not touch the trunk baffle, and the bucket must be strictly prevented from touching the trunk, and it is strictly forbidden to cross the bucket from the top of the car cab.

4) When going downhill, use automatic deceleration, and do not step on the clutch pedal to prevent the power from being cut off and causing a rolling accident.

5) The loader should be stopped immediately after wading in the water for inspection, if it is found that the brake failure is caused by immersion, continuous braking should be carried out, and the heat should be used.

Remove the water from the collapse of the brake pads to bring the brake back to normal as soon as possible.

6) When the loader is working, no one is allowed to stand in front of the loader, and the bucket is not allowed to carry people during the driving process.

1. Leakage of slewing joint

The first is the walking weakness caused by the serious leakage of the slewing joint. Hydraulic oil from the upper part of the excavator to the lower part of the running device, must pass through the rotary joint, when the rotary joint once leaked and damaged, there will be a part of the high-pressure oil flow to the oil return pipe, resulting in walking weakness, affecting the normal operation of the excavator. Therefore, it needs to be inspected to determine if it is a fault caused by a leak.

2. All kinds of valves are faulty

The inspection of the control valve is also an indispensable link, safety valve, throttle valve, check valve, balance valve, relief valve, walking reversing valve, etc., any valve failure, may cause the excavator to walk failure. The fault of the control valve is manifested in the strain of the walking control valve, the spool is stuck, the stroke is short, the matching gap between the spool and the valve hole is large, and the pressure of the safety valve is reduced, which will cause the weakness of the right walk.

3. Inspection of the travel motor

When the travel motor is seriously leaked, it can also cause walking weakness. The specific exclusion check method is: the right track can be supported by the bucket, and the right walking lever can be operated when the engine is idling.

When the drive wheel is not rotating, you can hear the "hiss, hiss" sound of the right travel motor, and then touch the oil pipe back and forth with your hand, and feel the oil flowing in the pipe. As the joystick continues to move, the tracks begin to rotate slowly, and as the engine accelerates, the "hiss, hiss" sound intensifies. The left side is checked for the above abnormalities in the same way.

4. Inspection of walking reducer

Poor toothing or lubrication of the reducer is also one of the reasons for the failure of walking weakness. When checking the walking weakness fault, if the power transmission between the walking horses and the driving wheels is normal and there is no abnormal sound, and the oil temperature, oil level and oil quality of the walking deceleration device are also normal, it is said that there is no fault in the walking deceleration and deceleration device, and the walking weakness fault has nothing to do with the walking deceleration device.

The main performance of slow excavator action is roughly divided into: slow single action, slow action of the whole vehicle, slow action of the heat engine. We will make a specific analysis of the above three issues.

Analyze the causes. 1. Check whether the pressure of the relief valve of the relevant components of the excavator is too low;

2. Check whether the pump, low-pressure sensor and multi-way valve are faulty;

3. Whether there is a fault in the relevant solenoid valve and valve core.

Hunter drivers share solutions.

1. First of all, check whether the whole machine is maintained on time and whether the hydraulic oil is replaced on time; Whether the hydraulic oil circuit is blocked, please check the system pressure at idle speed, and check whether the oil return filter element is blocked;

2. The output power of the engine is too low, and the power is insufficient, please combine the DX data to analyze the output of the engine, and whether all cylinders can work at the same time; Check the engine for black smoke, if the fuel injector is seriously worn, it will also cause the engine power to decrease;

3. If the output of the hydraulic pump is insufficient, it can be tested by entering the service diagnosis system.

4. Insufficient pilot pressure causes insufficient pressure to open the valve core, resulting in insufficient flow and slow action;

5. Eliminate whether there is a circuit problem, and check the excavator CPU, high and low voltage sensor, solenoid valve and line faults.

6. Check the oil in time to check whether the oil is clean, and replace it immediately if there is dirt; The oil is too dirty and needs to be replaced; Check whether there are copper chips on the inlet filter, which causes the main pump to wear and tear, and needs to be disassembled for inspection.

1.The rotational speed does not reach the rated rotational speed.

2.There is a leak in the system.

3.Due to the long-term working vibration of the hydraulic pump, the pump cover screw is loose.

4.Air leakage in the suction pipeline will also cause the failure of insufficient flow of the hydraulic pump of the excavator to reach the rated value.

5.The oil level in the oil tank is too low and the oil absorption is insufficient.

6.The inlet filter is clogged.

7.The suction pipe is blocked or the diameter is small.

8.The oil viscosity is too high or too low.

9.Improper flow adjustment of the variable pump causes the failure of insufficient flow of the hydraulic pump of the excavator to reach the rated value.

Short of hydraulic fluid? Find a repairman to check the walking PPC valve failure, EPC solenoid valve failure, and walking valve core jamming.

For no reason, he was already slow.

Does a loose pump cover screw refer to a hydraulic pump?

Hello, I'm glad to reply to you, the reasons and treatment methods for the small loader not walking: 1. The variable speed pump leaks, the variable speed pump fails due to the wear of the variable speed pump when the car is cold, there is air in the pump, and the suction power of the pump becomes smaller and cannot immediately suck the oil up, and the car needs to run for a few minutes, and wait for the temperature to rise to remove the air in the pump, so that the car is normal. How to check if you encounter a fault like a stool letter?

First of all, you put the gearbox on the car before starting, there is a big nut near the position of the transmission pump, open the big nut and add transmission oil to it, lock the big nut after adding, and then start the car, if the car walks normally, it means that the transmission pump is faulty, and you only need to replace the transmission pump. 2. The gearbox oil level is low, the gearbox oil is not added to the standard line, taking the 50 machine as an example, a replacement of transmission oil in 36L, the market to buy a barrel of 16L and 18 liters of a barrel, you have to distinguish clearly, if you buy 16 liters of Xun to add two barrels of more points, 18 liters of two barrels just right, pay attention to the distinction when buying. 3. When the oil inlet or oil return filter element of the gearbox is blocked, the viscosity of the oil is relatively high because the car has just started and belongs to the cold car state, and the pressure in the gearbox can not meet the requirements of the car, and so on After the temperature rises, the viscosity of the transmission oil decreases and the pressure increases, so that the mu can be noisy to go to the car, and the oil change is not only to change the oil, but also to remove the filter element for cleaning or replacement.

I hope it will be helpful to you, and you can always find the teacher if you have any other questions in the future. I wish you all the best in your life.

1.Check the oil volume of the engine and the level of the coolant to ensure the normal operation of the engine; 2.Check the oil filter to make sure it is not clogged for several bends; 3.

Check the wear of the front and rear tires to ensure that the tire pressure is sufficient; 4.Check the braking system to ensure that the brake can be timely and effective; 5.Check the steering system to make sure it is not obstructed; 6.

Inspect the bearings to make sure there is no damage; 7.Check the control system to ensure that there are no oil or air leaks; 8.Inspect the walking chain to make sure there is no damage; 9.

Check the engine performance to ensure that the engine is working properly; 10.Check the hydraulic system to make sure the pressure is sufficient.

Kiss! Hello, happy to answer your <>

Pro, the main reason for the weakness of the loader is the lack of variable wheel which speed tank oil or clutch plate wear is too serious. Extended information: loader is a kind of widely used in highways, railways, construction, hydropower, ports, mines and other construction projects, it is mainly used for shoveling soil, sand, lime, coal and other bulk materials, but also for ore, hard soil and other light shoveling operations.

Replacement of different auxiliary work units can also be used for bulldozing, lifting and loading and unloading of other materials such as timber. In road construction, especially in high-grade highway construction, loaders are used for filling and excavating subgrade engineering, aggregate and loading of asphalt mixture and cement concrete yards. In addition, it can be used to push soil, scrape the ground and tow other machinery.

Because the loader has the advantages of fast speed, high efficiency, good mobility and light operation, it has become one of the main types of earthwork construction in engineering construction. Hope mine can help you <>

Do you have any other questions? Nothing.

Summary. Hello, after the teacher here, I found that the small loader does not walk is this reason1 The reason why the loader cannot walk is that there is no transmission oil or the clutch plate is seriously worn and cannot be used. 2 The main reason why the loader does not walk is the lack of transmission oil or the clutch plate is badly worn, or it may be the failure of the travel pump.

I wish you a happy life If you are satisfied with me, please give my senior sister a thumbs up<>

You are simple, here after the teacher inquired that the small loader does not walk is the reason for the 1 The reason why the loader cannot walk is that there is no transmission oil or the clutch plate is seriously worn and cannot be used. 2 The main reason why the loader does not walk is the lack of transmission oil or the clutch plate is seriously worn, or it may be the failure of the travel pump Nakai. I wish you a happy life If you are satisfied with me, please give my senior sister a thumbs up<>

There are also questions you can ask the teacher.