4．接通电源，点动启动开关，检查机器各部位的转向是否正确。 ①提升机：

4. Turn on the power, jog the start switch, and check whether the steering of each part of the machine is correct. <br>① Hoist: Seen from the observation hole of the barrel, the hopper should run upwards. <br>②Dust removal fan: Seen from the direction of the motor, the fan impeller should rotate clockwise. <br>③Whether the rotation direction of the fan and transmission mechanism of the specific gravity table is consistent with the rotation direction indication. <br>④Air locker: Seen from the exit, the auger shaft should rotate clockwise.

4． Power on, tap the start switch, check that the steering is correct in all parts of the machine.<br> (1) Lifter: From the barrel observation hole, the hopper should run upward.<br> (2) Duster: From the direction of the motor, the fan impeller should rotate clockwise.<br> (3) Whether the gravity table fan and drive mechanism steering is consistent with the spiral marking.<br> (4) The wind shutter: from the outlet, the dragon shaft should be rotated clockwise.

4. turn on the power supply, and touch the start switch to check whether the steering of all parts of the machine is correct.<br>① Hoist: from the barrel observation hole, the hopper should run upward.<br>② Dust removal fan: from the direction of motor, the impeller of fan shall be clockwise.<br>③ Whether the direction of the fan and the drive mechanism of the pycnometer is consistent with the rotation direction mark.<br>④ Fan closing: from the outlet, the auger shaft should be clockwise.<br>