Cover and Gasket Replacement
When installing a new cover, make sure that the cover and gasket are perfectly clean and that the gasket is installed correctly. After installation, tighten the screws until tight.
If there is dirt inside the regulator housing, clean the contacts and other parts of the regulator.
Soldering breaks in electrical connections
Solder with a neutral flux, in a small amount, to protect the insulation from overheating. Remove any excess flux after soldering, as flux residues evaporating from the heat generated by the regulator during operation can contaminate the contacts.
Cleaning contacts
1. To clean the contacts, remove the armature spring and loosen the nut 4 (see fig. Voltage regulator PP-380), lift the column 6 of the fixed contact of the 1st stage.
2. With a flat velvet file, carefully clean the contacts, while removing burnt materials and oxides over the entire surface. The file must be completely dry, washed in pure alcohol or gasoline. The recesses that have arisen on the contacts due to burning must be cleaned with a clean steel pointed stud.
3. Remove the silver filings from the regulator body by blowing it with dry, clean air.
4. Install the armature spring. Adjust the gap by moving the rack 6 (1,4±0,07) mm between the armature and the core, making sure that the contacts touch correctly.
5. By moving the column 5, adjust the distance between the contacts of the 2nd stage to (0,45±0,1) mm, making sure that the contacts are touching correctly.
6. Tighten nut 4.
7. Replace the gasket and cover, then test the regulator on the stand and adjust if necessary.
Cleaning the voltage regulator
If foreign matter enters the regulator, after cleaning the contacts, before checking and adjusting, carefully rinse the regulator with alcohol or pure gasoline and then dry it (without cover) in an oven at 120°C for two hours. Then check the regulator on the stand and adjust if necessary.