Troubleshooting Methods for Common Faults in Centralized Lubrication Systems

We concentrate the lubrication parts of the equipment with more lubrication parts to supply oil and achieve lean lubrication, which is called centralized lubrication. The centralized lubrication system can reduce friction resistance, reduce surface wear, reduce temperature, prevent corrosion, shock-absorbing and sealing.

We concentrate the lubrication parts of the equipment with more lubrication parts to supply oil and achieve lean lubrication, which is called centralized lubrication. The centralized lubrication system can reduce friction resistance, reduce surface wear, reduce temperature, prevent corrosion, shock-absorbing and sealing.

The most common fault of the centralized lubrication system is that there is no grease output at the lubrication point. The general maintenance direction after the system fails is:
Pump unit--main distributor-primary and secondary distributors--lubrication point. This fault can be handled as follows:

1. Handling the fault of the pump unit
After the pump device is started, the rotating cam mechanism of the main body does not operate, then it can be handled as follows:
①Disassemble the electrical plug of the pump device;
②Start the pump device;
③Measure whether the input voltage of the pump device is between 1+20% of the normal voltage:
④Check whether the fuse is burned out:
④Check whether the connecting cable is burned out;
⑥If the above tests are normal, reset the time interval (assuming 5min);
⑦Start the pump device and wait for 5min, the pump device should be able to start and shut down automatically:
⑧If there is still no response, the pump device must be replaced.

2. If the pump device works normally, it needs to be handled according to the specific situation.
① System blockage - oil leakage at the safety valve, which can be checked and handled step by step from the pump, main distributor, secondary distributor to the lubrication point:
② Main oil pipe damage - the main oil pipe leaks oil, and the main oil pipe needs to be replaced;
③ The main oil pipe is blocked. First, disassemble the main oil pipe from the main distributor, start the pump device, and observe whether lubricant flows out from the disassembled part. If not, replace the main oil pipe;
④ If the main distributor fails, first loosen the outlet connection of the main distributor, check the connecting valve at the outlet, start the pump device, and observe whether lubricant flows out from the loosened part. If not, replace the main distributor;
⑤ If the secondary pipeline is blocked, refer to ③ for treatment;
⑥ If the secondary distributor fails, refer to ④ for treatment;
⑦ If the oil supply pipe to the lubrication point is damaged, such as visually visible damage, flat or twisted, etc., the oil supply pipe needs to be replaced;
⑧ If there is no grease supply at the lubrication point, check whether the liquid level of the grease storage tank is lower than the minimum limit. If the liquid level is too low, add the specified brand of lubricant.

If the centralized lubrication system is properly selected and used normally, it can lubricate the machine at a fixed time, fixed point and fixed quantity when the machine is working, which will minimize the wear of the machine and greatly reduce the use of lubricants. While protecting the environment and saving energy, it can reduce the loss and maintenance time of the machine, improve work efficiency, create greater economic benefits for users, and also improve the market competitiveness of the enterprise. The centralized lubrication system adopts a progressive working mode. The pump is designed to work intermittently or continuously, so that the running program can be edited according to different needs. A direct-connected reduction motor drives the cam inside the pump to work, and can drive 3-5 external pump units at the same time. Each pump unit is equipped with an overflow overpressure protection valve to prevent overpressure damage. 1-200 lubrication points can be set. The lubrication pump supplies oil to each lubrication point in turn, and the pressure of the pump can act completely on each point without being dispersed. Therefore, when a lubrication point in the system is blocked and cannot be lubricated through the distributor, the pressure of the entire system increases until a back pressure of 25MPA is established. At this time, a safety valve connected to the pump unit will automatically open the oil spray pressure relief to ensure the safety of the system.