How to use the belt measurer: 1. Place the belt model on the two half pulleys of the measurer. 2. Tighten the belt by pulling on the half sliding pulley. 3. Mark on the right cut marked LPG/FHP the outer position of the belt identified by a white rectangle marked 3L-4L-5L (see example opposite). 4. Take one of these three indications on the left side slider and add the number marked on the ruler to get the size in inches of your belt. Example: L3 22 = 3L 22 L3 = Section 9.5 22" = outer length in inch (1" = 25.4 mm)