The lubrication oil in the pump housing must be changed every 2500 working hours or every six months, whichever occurs earlier.
The lubrication oil in the pump housing must be changed every 2500 working hours or every six months, whichever occurs earlier.
每工作2500个小时或者六个月，以先到期的时间为准，必须将泵壳内的润滑油更换一次。