Introduction to the three major maintenance of PCB depaneling machine

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Introduction to the three major maintenance of PCB depaneling machine [Copy link]

1. Reasons for the operation problems of the PCB splitter: the battery does not have sufficient power, and the connection between the battery and the starter motor is disconnected. The battery or the wiring clip is oxidized; the electromagnetic switch has poor contact with the two terminals or the guide plate is severely burned; the brush is worn, broken or stuck in the brush holder; there is oil between the brush rectifier or the rectifier is severely burned. , 247, 252, 255)] 2. Partial short circuit or open circuit of winding: There are three reasons for this situation. One is the desoldering of armature winding or commutator segment. The other is the wear of bearing or copper sleeve leading to rotor bore scraping. The third is that the position of the four brushes is wrong during installation or the gap of the newly replaced sleeve is too large. PCB splitter starts idling: the shift fork is not installed correctly, and the shift fork slide column is installed in the moving bushing, so that the motor gear cannot rotate with the shift fork.

3. The PCB splitter starts the motor and it will rotate. If the gap between the electromagnetic switch core and the receiving plate push rod is too large, the one-way clutch will slip and cannot drive the flywheel gear ring to rotate. Once the starting motor gear is severely worn, it will not be able to run-in well with the flywheel gear ring. The electromagnetic switch is often attracted and often open, which means that after pressing the start switch, the iron core of the electromagnetic switch will be immediately removed as soon as it is attracted, and then it will be attracted again, and then it will be immediately removed, which will not achieve the effect of starting the engine. 1. The common reason for this fault phenomenon is that the coil is broken.