Found that such solenoid circuit fault is actually very little in the case of coil burned out, more is the site from the coil lead and slip ring (copper ring) welded disengaged or loose contact in the repair site troubleshooting bad, burning joints caused by the coil circuit. So, when a failure occurs, the measured coil circuit, must not be easily judged coil burned out and replace the coil trouble. Epoxy surface to pry open the solenoid should find connections lead head, carefully check the coil lead and copper ring, if the connection is disconnected solder re-weld, or with a wire coil leads glial wire welding leads, on the side of the copper ring drilling, tapping an M4 threaded screws fixing the connecting lead and copper rings.

In such a scene in troubleshooting, maintenance personnel to quickly repair many cases of this approach, can achieve the requirements, not only to cope with the production of emergencies, but also saves maintenance costs, the effect is very good.

There are also worth noting: In dealing with such a coil failure, its DC resistance to measure accurately, the DC resistance of the solenoid too large or small will affect the normal use of the electromagnetic clutch. Here are some relevant data for reference: electromagnetic clutch coil DC resistance on 05,08 generally used to move the machine on 22f2,03 DLM2-10 clutch solenoid coil DC resistance of about 15, QZl04 hydraulic cutting paper use electromagnetic clutch mechanism coil DC resistance design value of 892. Of course, this had a good pre-commissioning details electromagnetic clutch, regulating attention to the problem following an electromagnetic clutch, brake lining wear and tear after a long period of use, causing the gap between the electromagnet and the armature increases, the length of the elongated spring, elasticity decreases, causing skidding. At this time due to the gap increases, not only pull the armature coil voltage rises, and the armature can not pull, easy to burn other electrical originals.