MATRIX CARRIER BELT
This belt moves the matrices to the assembling elevator and must be kept fairly tight. It is adjusted by loosening the nut and stud which hold the upper pulley and which fit into a slotted hole; then move the pulley to the desired position and tighten the nut. If the belt is still loose when the stud is against the outer end of the slot a new belt should be applied. Procure a new belt from the machine manufacturer and be sure to specify the model and the number of the machine, because the belts are of different lengths for the various models.
There are always particles of dirt and grease that form a gum which adheres to the pulleys and slideways along which the belt moves. These parts should be kept clean and free of this gum.