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1. Howo. Power take-off in the gearbox of the car.
the sides of the assembly;
2. The HOWO power take-off is generally composed of a gearbox, clutch and controller, which is connected with the low-grade gear of the gearbox or the output shaft of the sub-box to output the power to an external working device, such as a lifting pump;
3. The power take-off is generally connected to the transmission shaft.
Or directly with the gear pump.
Connected, in Europe, North America, due to the variety of power take-offs design, and a wide variety.
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Howo is the first production of China Heavy Duty Truck Group, its dump truck and special vehicle gearbox (mainly using Shaanxi Fast gearbox and Datong gearbox) before adding power take-off, power take-off is located on the side of the gearbox assembly, according to the modification technical requirements can be added on the left or right; The power take-off is a set of variable gear gears, also known as power output, which is generally composed of a gearbox and a clutch, which is connected with the gearbox using gears, and is connected with the shaft of the lifting pump, which is a separate gear in the gearbox. The lift pump is a hydraulic device that lifts the car box to realize the dump function. Special vehicles that require additional power, such as dump trucks, fire trucks, cement mixer trucks, refrigeration, etc., are obtained through a power take-off, which is an additional device installed on the outside of the gearbox (the power take-off of the cement mixer truck is on the clutch housing), which obtains power from a certain gear of the gearbox.
The switching of this power on or off is controlled by an electromagnetic field in the cab. The high-pressure oil pump is driven by the power take-off to supply the dump truck; Pump water for fire trucks; Drive the compressor to supply the refrigeration car; Drive the hydraulic motor to rotate the stirring tanker.
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It depends on whether it is a full-power power take-off or a gearbox power take-off, the full-power power take-off is between the transmission and the clutch of the car, and the gearbox power take-off is between the gearbox and the auxiliary drive shaft, as shown in the following figure
Schematic diagram of the installation of the full-power power take-off.
Schematic diagram of transmission power take-off installation.
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The power take-off is generally on the gearbox.
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1. First confirm that the engine is working normally, and ensure that the pressure of the system gas lift is 700 800kpa; 2. Place the transmission lever in the neutral position in the low-gear area; 3. Disconnect the clutch, first turn on the power take-off switch, and then turn on the parking power take-off switch, at this time, the multi-function buzzer will sound an alarm; 4. According to the requirements of use, put the transmission lever in the required gear (below 3 gears) in the low-grade section, slowly release the clutch pedal, the power take-off enters the working state, the power take-off indicator light is on, and the oil pump in the hydraulic system is in the working state. At this time, be careful not to slam the throttle, keep the engine speed at 1000 1600 rpm; 5. When the normal-burning potato power take-off needs to stop working, step on the clutch pedal, put the gearbox lever in neutral, press the power take-off switch and the parking power take-off switch to the closed position, the power take-off indicator light is extinguished, the multi-function buzzer stops beeping alarm, and finally releases the clutch pedal.
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Hello, it is a pleasure to serve you and give you the following answer: an engine power take-off is a device used to adjust the displacement of the engine, which can control the speed and output power of the engine. It is composed of a spring and a set of electromagnets, when the engine speed rises, the power take-off will be pushed away, thereby changing the engine exhaust volume, so that the engine speed decreases, so as to achieve the purpose of adjusting the engine speed and output power large curvature.
There will also be some problems during the normal operation of the engine power take-off, mainly due to the failure of the electromagnet inside the power take-off, which makes the power take-off unable to work properly. There are several ways to solve this type of problem:1
Check whether the power supply voltage of the power take-off is normal, if not, the power supply should be replaced as soon as possible; 2.Check whether the electromagnet of the power take-off is damaged or aged, if it is found to be damaged or aged, the electromagnet should be replaced in time; 3.Check whether the spring of the power take-off is normal, if there is a variable plexus slim or worn, the spring should be replaced in time; 4.
Check whether the gap between the electromagnet of the power take-off and the engine rotor is correct, if not, it should be adjusted in time. The above is the relevant knowledge about the working principle and fault handling of the engine power take-off, I hope it will be helpful to you.