FRAME AS 5103812 - Caterpillar

Illustration 1 g02729648
Loosen bolt (5) and loosen nut and bolt 6. Also, loosen nut and bolt (1).
Loosen nut (3) and turn screw (2) counter clockwise. Turn the screw (2) in order to give clearance to remove the belt (4).
Remove belt (4) and visually check all pulleys that the belt operates. Ensure that all pulleys are clean and free from damage. Ensure that the pulleys rotate freely. Replace any component that is damaged.
Illustration 2 g02603591
(A) Belt configuration
Install the new belt, use belt configuration (A). Visually check that the belt is correctly aligned.
Turn the screw (2) clockwise in order to tension the belt. Ensure that the link adjuster (7) is at the maximum extension, refer to illustration 2.
Tighten bolt (5), nut, and bolt (6) and tighten nut and bolt (1). Tighten these nuts and bolts to 50 N m (37 lb ft).
Rotate bolt (2) counter clockwise two complete revolutions and tighten nut (3) to 30 N m (22 lb ft).
Install the guard, refer to OEM for more information.