Cat C15 Fan Belt Diagram -

Slip the belt off the easiest pulley (usually the alternator or an idler) first, then work it off the rest.

Crank → Fan → Alternator → Tensioner → back to Crank

Spin the idler and tensioner pulleys by hand. If they feel "crunchy" or have side-to-side play, replace them now. cat c15 fan belt diagram

A sign that the belt is "walking" off the pulleys or a pulley bearing is failing.

Depress the tensioner again and slip the belt into the final groove. Ensure the ribs are perfectly aligned in every pulley track. Maintenance Tip: Check the Tensioner Slip the belt off the easiest pulley (usually

Smooth pulleys used to "guide" the belt and create the necessary wrap around the drive pulleys. Cat C15 Fan Belt Routing Diagram (Visual Description)

Visualizing the belt path is easiest if you break it down by component contact points. Starting from the crankshaft (the bottom center driver): A sign that the belt is "walking" off

Do rely on memory alone. Use these three reliable methods:

– Cat often places a belt routing diagram on the fan shroud, valve cover, or front timing cover. This is the single best source.