How to deal with the lubrication system failure of ZD15-2.5-2 reducer

The lubrication system fault of ZD15-2.5-2 reducer needs to be identified first, and then targeted treatment can be carried out. The specific steps can be directly executed:

1. Troubleshooting of abnormal oil level

Low oil level: Stop the machine and cool it down to room temperature. Add lubricating oil of the specified brand in the instruction manual to the centerline of the oil window; Check for oil leakage at the oil seal and flange seal, replace damaged seals, and tighten loose bolts; If there is sand hole leakage in the shell, repair or replace the shell with oil resistant sealant.

Oil level too high: Drain excess lubricating oil to the standard oil level; Check if it is caused by water ingress or excessive refueling. If water ingress occurs, thoroughly replace the lubricating oil and check if the vent plug is blocked.

2. Handling of oil quality deterioration faults

Blackening and impurities in the oil: Immediately drain the old oil and flush the fuel tank and oil circuit with kerosene or specialized cleaning agent; Disassemble and inspect the filter, clean the impurities in the filter or replace the filter element; After reinstallation, add new oil and replace it again after the first 50 hours of operation to ensure the cleanliness of the oil circuit.

Oil emulsion: Replace all lubricating oil, check if the gearbox housing has water ingress (such as seal failure or humid environment), and repair the water ingress point; Install desiccants or improve ventilation conditions to prevent re emulsification.

3. Troubleshooting of lubrication circuit blockage

Symptoms: The temperature rise of bearings and gears is too fast, and the local temperature exceeds 80 ℃.

Solution: Disassemble the lubrication pipeline and oil passage, and blow the blocked parts with compressed air; Check if the oil pump (if any) is stuck, repair or replace the damaged oil pump; Replace the filter screen, regularly clean impurities, and avoid clogging again.

4. Troubleshooting of poor lubrication (insufficient oil supply)

Reason: Insufficient oil pump pressure, oil leakage, and clogged oil nozzle.

Solution: Adjust the oil pump pressure to the rated value; Check the oil circuit joints, tighten or replace the seals; Clean the blockage of the oil nozzle to ensure that the lubricating oil reaches the mating surface and bearing raceway directly; If it is splash lubrication, it is necessary to confirm that the oil level is sufficient and the gear rotation is normal with oil.