Instructions:

1. Press on the lid or aluminum rear lid, put in the rolling head, upper and lower tap handle, the pressure to roll head wound up, loosen the handle, namely to restore the original position. Avoid using brute force, pressure gland tightness after a good check.
 
  2. The first capping is not tight or not smooth, you can adjust the rolling head elastic, clockwise to loosen counterclockwise turn tight.