The operation test is generally carried out after the loop chain electric gourd is installed, mainly to investigate the safety of the ring chain electric gourd. Avoid hidden safety hazards to use ring -chain electric gourds. The operation test steps are as follows:

1.Press the down button directly to operate the ring chain electric gourd to decrease. Knowing that the extreme spring touches the extreme switch, the motor will stop automatically.

2. Press the upper button directly until the chain is completely retracted into the chain bag, and the motor stops running.

3. Test emergency stop switching function: Press the upward or down button at any operation, and press the emergency stop switch at the same time. Check whether the hook immediately stops the action when the emergency switch is pressed. And when the emergency switch is pressed, the other buttons are pressed again, and there will be no reaction. After the emergency switch is rotated, the emergency switch should be played back to the original position. When the switch is bounced back, the crane can operate again. If any of the above tests are abnormal, you need to check whether the lines of the wiring and the self -locking function of the emergency switch are faulty.

4. Check the lubrication of the heavy chain (He Chonglian has passed the oil before leaving the factory, but it may be killed during transportation). Any ready -made lubricant can be used to lubricate the chain. We recommend that you maintain a small amount of lubricant oil in the chain bag, so that the chain in the chain bag can be immersed in lubricating oil.

5. Check the direction of chain. All welding points should be in the same direction (Figure 8). Only when all chain welding points are on the same line can it be completely correct.