Machine Maintenance: 7178788094934171783-blid-1182114859373466163

ล่างตรงๆตามสูตร ตรงไม่กลับ 79^32@ผมชื่อดำครับ1/12/62

1, Check the motor if the default phase happens or if the short circuit happens, and check if the change -over switch works normally;

2, Check the gearbox and big gears if they are short of oil;

3, The two blades are connected by two main shafts and each main shaft is supported and fixed by two sets ofbearings. Check the bearing if the lubricating oil is short.