Several Maintenance Points For Ignition Coils

　　Maintaining good insulation performance of the ignition coil is the main content of its use and maintenance.

　　1. The outer surface of the ignition coil should be kept clean. The interior should be protected from moisture to maintain its good insulating properties.

　　2. The connection between the ignition coil high-voltage lead-out screw and the high-voltage line should be firm and reliable. If the connection is loose, the discharge flashover is easy to occur, which will burn the connection part.

　　3. The connection between the primary winding of the ignition coil and the external circuit should be firm and reliable. In the battery ignition system, the connection between the low-voltage terminal and the external circuit usually has a polarity regulation, that is, the positive and low-voltage wiring should be directly or indirectly connected to the positive electrode of the battery, and the low-voltage terminal of the negative pole should be connected to the negative electrode of the battery.

　　4. One end of the secondary winding of the ignition coil is connected to the spark plug through the high-voltage wire and the spark plug cap. In use, the high-voltage wire and the spark plug cap should be prevented from loosening. When the high-voltage line or the spark plug cap falls off, the high-voltage electricity generated by the secondary winding will rise to the limit value determined by the working capacity due to the open circuit of the load, which will easily lead to the breakdown and damage of the secondary winding.

　　5. In some magneto ignition systems, the ignition coil also maintains a specified gap (air gap) with the rotating flywheel magnet, otherwise it will affect the ignition performance or cause mechanical accidents.

　　6. For the contact-type battery ignition system, when the gasoline engine stops running, the ignition switch should be turned off in time; when the ignition switch is turned on, the gasoline engine should be started in time. Otherwise, when the contacts of the circuit breaker just stay closed, a large current will flow through the primary winding continuously, which will easily cause the ignition coil to generate excessive temperature rise and be damaged.