Common fault maintenance methods of grab crane
The grab crane manufacturer analyzes the grab fault maintenance methods. Some problems cannot be avoided during the use of the grab. In order to reduce the problems of the grab equipment in use, carry out maintenance and inspection regularly to ensure that the grab can work normally.. what faults will be encountered when using the grab and how to solve them when they are encountered, How to maintain and protect the grab??Process of common faults:
1. The grab can not meet the normal working switch, which is often a problem in remote control transmitting and receiving information. For example, the indicator light flashes continuously after pressing the key, there is no power between the transmitters, and the dry battery is replaced. If the solenoid valve indicator does not light up after pressing the remote control, or the indicator light is on, but the solenoid valve does not act, it means that the battery enterprise needs to charge itself. If the solenoid valve core is stuck or damaged, the grab can not affect the normal operation switch. This kind of equipment fault analysis can judge the rapid economic development through students exchanging spare parts at the same time, and it is easy to lead to treatment.
2. During the grab process, the grab opens slowly. The most likely cause of this automatic opening failure is the failure of the plug valve (hydraulic control one-way valve function). Remove the plug valve, clean the valve block or replace the valve core and reinstall it.. of course, if the internal leakage failure of two cylinders occurs at the same time, it will also lead to the slow opening of the grab, but this probability is very low and can be ignored.
3. A large number of V-shaped marks can be formed during the opening and closing of the cargo side of the wharf, so that a large number of workers can open the handrail slowly, or a large number of V-shaped marks can be generated during the opening and closing of the cargo side. This failure usually occurs in inches of piston cylinder. The possible cause is the formation of piston ring stuck check valve when the upper piston or die is worn or damaged. Disassembly of cylinder, piston and check valve is required to replace piston seals.
Methods of using grab for maintenance:
The normal maintenance of the grab is very important to ensure the safe operation of the machine, and regular maintenance cannot be less.. first, during the welding process, pay attention to the timely application of lubricating oil, so as to better avoid steel rust and ensure the efficiency of the machine itself. It is important to note that the oil stains on the outer layer must be degreased before galvanizing the welder, and the dirt shall be removed by alkali washing during cleaning.
For the grab crane, when employees need to master their own technology and do a good job in normal maintenance, safety is particularly important to ensure that the grab will not have any problems during use and improve work efficiency and safety.
