In the event of a seal leak, the module energizes one of its SPST output relays indicating that seal maintenance or replacement is required before the motor is damaged. 如果密封泄漏，控制模塊就會(huì )激活單刀單擲輸出繼電器，指示在電機被破壞之前，必須對密封進(jìn)行維護或更換。
The new type hydraulic prop reduces the accidents due to the seal leaking by using seal-compensation and seal-swelling, and reduces seal change times and maintenance times. 新型液壓支柱采用密封補償和密封脹緊等密封方式，可減少因密封泄漏而造成的冒頂等事故隱患，減少密封更換次數及維修次數。
