VALVE GP 0839315 - Caterpillar

Alternator Belt
Stop the engine.
Open the engine compartment.
Illustration 1 g01068784
To check the belt tension, apply 110 N (25 lb) of force midway between the pulleys. Correctly adjusted belts will deflect 14 to 20 mm (1/2 to 3/4 inch).
In order to adjust the alternator belt, loosen the alternator adjusting bracket bolt and the mounting bracket bolt.
To achieve the correct belt tension, move the alternator inward or move the alternator outward, as required.
If necessary, use a pry bar to bear against the alternator bracket.
Tighten the mounting bracket bolt and the alternator adjusting bracket bolt.
If new belts are installed, check the belt adjustment again after 30 minutes of engine operation at the rated speed.
Check the position of the fan shroud. Adjust the position of the fan shroud so that the fan will not rub against the shroud. Maintain a 9.4 mm (0.38 inch) clearance between the fan and the shroud.