If a new set of matrices is treated in this way before putting them into the machine there will be little or no trouble with them sticking in the magazine.
Any burrs on the ears should be filed off, or they also will cause the letters to stick.
In cleaning the magazine, do not use benzine unless oil should have collected there by some means.
Be sure to lift up matrix guards at the lower end of magazine 2-2-2-2 (Fig. 36) and clean the channels on under side of these guards; also the channels A (Fig. 36).
Fig. 36.
The spacebands should be carefully inspected and metal should never be allowed to collect on the slide. Metal on the spaceband slides will destroy a set of matrices in a very few hours.
When cleaning spacebands, never use emery cloth, as this polishes the slide and causes the metal to adhere to it. The best way to clean spacebands is to rub them in graphite on a board or piece of felt nailed on a board.