After long-term operation, hydraulic cylinder leaks oil at the rod and joint, and high-pressure oil pipes seep oil at pipe wall and connectors, causing oil waste, insufficient pressure and potential safety hazards.
Main causes: aging and failed internal oil seals; aging and cracked high-pressure oil pipes; loose joint screws and worn sealing washers.
Solutions: Replace aging cylinder oil seals regularly; replace cracked and leaking high-pressure oil pipes; fasten all hydraulic joints and replace worn sealing parts in advance to prevent oil leakage thoroughly.
