The method of using oil-free vacuum pump correctly

（1）无灰尘及脏物的清洁场所。

(1) clean place without dust and dirt.

（2（应具有充分良好的通风条件及低于40℃的环境温度。

(2) adequate ventilation condition and environmental temperature below 40 degrees centigrade.

（3）不直接暴露在阳光里。

3) not directly exposed to the sun.

（4）无让水、油等液体降落到泵上。

(4) no water, oil and other liquids fell to the pump.

（5）泵必须安装在平坦的平面上。

(5) the pump must be installed on a flat plane.

（6）有足够的周围空间能便于泵的检查，维护和装拆。

(6) sufficient space to facilitate inspection, maintenance and disassembly of pumps.

（7）必须确保泵不因基础不牢固而引起震动。

(7) must ensure that the pump does not cause vibration due to the foundation is not strong.

(8)接电线时，应注意电机铭牌上的规定接线要求。三相电泵要注意电机旋转方向应与泵上的标示箭头方向一致。

(8) pay attention to the specified wiring requirements on the motor nameplate when wiring. Three phase electric pump should pay attention to the direction of motor rotation should be consistent with the direction of the arrow on the pump arrow.

(9)最好将泵放在类似混凝土坚硬的地基上安装，如果没有条件，也可将泵牢固地安装在钢制或木制的机架上。

(9) it is better to install the pump on a rigid foundation similar to the concrete. If there is no condition, the pump can be firmly mounted on the steel or wooden frame.

（10）与泵连接管道不宜过长和小于泵进口径，影响抽速，同是注意检查真空连接管道有否漏气。

(10) the pipe connecting with the pump should not be too long and smaller than the diameter of the pump, affecting the pumping speed, and the same attention is paid to check whether the vacuum connection pipeline leaks.