On the bridge crane electrical maintenance methods and techniques

1 Sensory law: that is through human sense organs, perception fault conditions, access to fault information,gantry crane for failure to make a preliminary judgment. For example: When a failure occurs, we understand clearly to the operator after the failure phenomenon, we can observe through the eyes, to see whether the apparent point of failure, take appropriate measures; failure can also use ear sounds, determines mechanical sound or electrical failure within the electric motor sound, take appropriate measures; smell the smell can also be used to determine whether there element burned, etc.; also hand feeling the temperature of the motor and other components to help us make the right judgments for failure. This method requires crane electrical maintenance personnel to have some experience.
(2) Emergency Law: When we sensory method by using the above still does not as soon as possible after troubleshooting, and production line equipment for a long time do not allow the rest of the case, we will take emergency measures to allow the device to move as quickly as possible. Knowledge of the emergency law in case of emergency interim measures, not long-term use, so when an emergency situation after the disappearance, we have to seriously troubleshoot eliminate failures.
3 test method: in the guarantee does not lead to the failure to expand to the premise, by sending electrical test, repeated observations of the action action mechanism, abnormal, troubleshooting, or help further troubleshooting. (Overhead  bridge crane s)
 4 voltage method: This is a direct and effective quick way to find an actuating mechanism when the action without action, we can start with a multimeter from the ends of the coil, the coil and the coil individually amount of each component branch voltage, and ultimately to identify the point of failure, troubleshooting.
5 Short Connection: When we find an action element and no action should be action, and this element and in a multi-loop, use a multimeter can not draw accurate conclusions, we can by shorting the coil branch of the element United interlock control components, troubleshooting points.
6 Grounding method: When the branch line has long suspected a break and find the line breakpoint, in case of power failure, the line can be grounded at one end, the other end of the line sequential measurements are also grounded, so as to arrive accurate conclusions.

   Several methods can be effective over the complete overhaul of the electrical overhead bridge crane.