The Sign of The Extractor Switch and Fault Repair

The Sign of The PTO Switch

The symbol of the power take-off switch is a round gear icon. The extractor is a set or more sets of variable speed gears, also known as power output, generally from the combination of gearbox, clutch, controller, and transmission low gear or sub-box output shaft connected to the power output to external work devices, such as lifting pump. The classification of the extractor is as follows.

1, the transmission side of the power output form: this power output mode can only output one-half of the maximum power of the engine, and at most will not exceed one-half. Therefore, it is called partial power output, mostly used in dump trucks, garbage trucks, aerial work, crane cars, tankers, etc., manipulation can be manual mechanical manipulation, but also with air pressure, hydraulic, electromagnetic control switch control engagement, and disconnection, but also with push and pull flexible shaft control;

2, the front of the transmission power output form: set between the transmission and the clutch, you can get the maximum power of the engine, so-called the full power output extractor. This kind of power take-off design must focus on the oil temperature and lubrication, and if necessary, can add forced lubrication and a cooling device, this structure makes the modification of the fire truck more convenient;

3, the front of the engine power output form: generally from the front of the engine crankshaft pulley with triangle skin output power, drive the extractor. This output method can take power at any time, but only part of the power output, mostly used on the mixer truck, there are also freewheel power output and power output on the drive shaft to take power device.

Why Does the PTO Switch Fail

Operational failure, this is a very common failure, there are many customers and friends in the new purchase of tanker trucks after the tanker truck operation is not very well understood, and there are operational errors. The extractor is driven by the engine, the operation of the extractor money to start the vehicle first, the vehicle starts to open the extractor switch, it should be noted that, open the extractor...

Power take-off mechanical failure, power take-off, and engine "not bite". Due to the poor quality of the power take-off articulation or a long time of wear and tear, will lead to the power take-off and engine gear articulation uneven or even "hit the teeth" phenomenon, and the sound is abnormally loud. In this situation should contact the manufacturer or purchase new equipment for replacement. We recommend you buy a PTO switch for john deere.

Troubleshooting and Repair

The most direct and obvious result is that the gear pump does not turn, the hydraulic dumping system loses its power source, and the whole system is in a paralyzed state and cannot work.

Heavy dump truck is mostly used in the pneumatic extractor, which is mainly composed of three parts: transmission mechanism, connection mechanism, and manipulation mechanism. The most common failure in these three parts is the manipulation mechanism, which uses the solenoid valve to switch the airway. The solenoid valve controls the manipulating cylinder of the extractor, so as to complete the hanging and unshifting work of the extractor. In the process of unloading the solenoid valve to frequent action, its parts are prone to damage and failure, so we must often check the effectiveness of the solenoid valve, sensitivity, circuit security, and switch, if the circuit is all normal, should also check the work of the power cylinder, there is no air or air leakage, if necessary, also disassemble the power cylinder to check.

The transmission mechanism and connection mechanism should also be often maintenance and maintenance. When the gear of the transmission mechanism poorly meshes, and the fork and push rod connection bolts are loose, there will be an abnormal sound, check the parts fastening bolts, and at the same time pay attention to check the lubricating oil situation, timely clean up the dirt, keep the parts clean, intact, prevent bump, scratch. In addition, you should also frequently check the coupling bushing between the extractor and the oil pump, if it is not firm, broken, off, or broken should be replaced in a timely manner.