Excessive oil temperature can be caused by a malfunction in the cooling system or overheating of hydraulic components during operation.
Malfunctioning Cooling System
1. Insufficient cooling supply, such as a partially open water valve, insufficient water pressure, or an inadequate water pump flow rate.
2. Pipe blockage, such as blockages in the filter, cooling tower, or water pipes.
3. Overheating of cooling water, such as insufficient or damaged cooling tower heat dissipation capacity, or excessively high ambient temperature.
Overheating in the Hydraulic System
1. Damaged oil pump; internal parts wear and generate heat during high-speed rotation.
2. Improper pressure regulation; the hydraulic system remains under high pressure for extended periods, leading to overheating.
3. Internal leakage in hydraulic components, such as a damaged directional valve or faulty seals, causing high-pressure oil to generate heat as it flows through confined spaces.
