Regularly check the oil level height and hydraulic oil quality during the operation of the hydraulic pump; monitor oil temperature changes, and take forceful measures to ensure high oil temperatures do not exceed the temperature values specified in the mechanical manual; maintain the cleanliness of hydraulic oil, and replace it promptly, as well as clean the oil filter.

Common issues with hydraulic pumps include no oil discharge, insufficient flow rate, excessive noise, and high oil temperature.

For machinery currently in use, if the hydraulic pump fails to expel oil, it is often due to mechanical transmission issues, such as a drive being cut, crushed, or other parts of the transmission system being damaged. In cases where the machinery has been disassembled but not yet operated, the hydraulic pump not expelling oil might be caused by incorrect oil pump orientation; reversed inlets and outlets; incorrect assembly or missing parts; or an oil level too low in the reservoir. Insufficient flow from the hydraulic pump or failure to reach the required pressure may be due to severe pump wear or seal damage, leading to significant internal leakage; a too thin and long suction pipe, excessively high viscosity of the hydraulic oil, a clogged filter causing high resistance to oil intake; an oil level too low in the reservoir, or a leaky intake pipe seal.

Common Faults in Hydraulic Pumps within Hydraulic Systems? Are you clear now?