?????????????????????? ??????? ?????????????????????? (Auto Guide Vehicle) ?????????????????????????????????????????????????????????????????????????????????????????? ??????????? ??????????????????????????????????? ?????????????????????????????????????????????????????????????????????????????? ???????????????????????????????????????
4 สัญญาณเตือนของตลับลูกปืนที่ใกล้ชำรุดหรือหมดสภาพการใช้งาน
????????????????????????????????????????????????????????????????????????????????? (Bearing) ??? ?????????????????????????????????????? ????????????? ??????? ?????? ???? ??????? ?????????????????????????????????????????????????????????????????????????????? ????????????????????????????????????????????????? ??????????????????????????