(1)本产品出厂前以加足黄油，整机验收合格。根据实用情况，3-5年整机打开大修一次。
(1) this product is put in butter before leaving the factory, and the whole machine is accepted. According to the practical situation, the whole machine is opened for 3-5 years.
(2)安装使用前，应作一次检查，试验运行，清理污圾，进行润滑，螺杆的螺纹段则应涂抹黄油，以防生绣。
(2) before the installation and use, should make an inspection and test operation, clean up garbage pollution, lubrication, the screw thread section should smear butter, to prevent rust.
螺杆在使用中容易产生弯曲现象，这是由于闭门时过分施加了压力的结果，应当及时卸下，将其校直，另外需在螺纹顶端核定升降高度，固定限位螺母和涂以警色标记，以谨慎操作安全运行。
The screw is easy to produce bending phenomenon in use, this is due to excessive pressure closed when the results, shall promptly remove the straightening, also approved the lifting height in the top thread, fixed spacing nut and coated with police color marker, to the safe operation of prudent operation.