You will need
- Tweezers, small screwdriver, sharp stick
Remove the back cover. To do this, pry it with a sharp knife. Some caps can work loose. For unscrewing the caps insert the legs of the little tweezers into the slots of the turntable, and rotate the ring counterclockwise. When the lid is opened, as a rule, immediately are visible malfunctions such as a broken spring and loose screws.
Before removing the movement from the case, pull the mainspring. To do this, pull the crown to the dog in an extreme position and hold with tweezers, then turn the crown with your fingers.
Disconnect the winding shaft, which will set it to the position of the hand position. Loosen the screw of the transfer lever. Remove the mechanism from the housing and insert the wind-up shaft.
Check free spinning the Central wheel and not to interfere it with the surrounding parts. Check up reliability of fastening of the spiral balance and the drum.
Now you have to remove the hands and dial. First unplug the second hand, then the minute (this should be done with the help of forceps). Remove the dial with the hour hand. Inspect switch mechanism to verify the grip of the wheels, powersaw them in forward and reverse directions. Check the correct fixing of the transfer and winding levers.
Disconnect the balance bridge with the balance node. To do this, two rotations to Unscrew the screw column of the spiral and separate the node balance of the bridge. Remove the balance mechanism, it should not hang at the end of the spiral.
When fully deflated clockwork spring remove the anchor bridge and the anchor.
Disconnect from the mechanism Central, intermediate, and second escape wheel. Examine the teeth, check the position of the wheels and the adhesion between the wheels and corresponding gears. Disconnect the drum, open it and check the status of the mainspring.
Rinse the parts of the clock mechanism in gasoline, plugging it in a small transparent container so that the fuel level does not exceed 2 cm. First rinse large items and then smaller. Heavily soiled grooves clean pointed stick. After washing the parts dry with a jet of air from a rubber bulb. Take the items after cleaning is possible only with tweezers. After cleaning, assemble the watch in reverse order.