LINER 3374572 - Caterpillar

Inspect the Belt
Park the machine on level ground. Lower the dozer blade to the ground. Move the transmission control to the NEUTRAL position and engage the parking brake. Shut off the engine.
Open the right engine access door.
Illustration 1 g02270975
Illustration 2 g06114636
(A) New belt
(B) Worn belt
Inspect the condition of serpentine belt (1). Over time the belt ribs will lose material (C). The space between the ribs will increase (D). The loss of material will cause the pulley sheave to contact the belt valley. This will lead to belt slippage and accelerated wear (E). Replace the belt if the belt is worn or frayed.
Close the right engine access door.Replace the Belt
Note: Replace a belt that is in poor condition, when a new belt is required.Replace the belt if any of the following conditions exist:
excessive cracking
excessive wear
excessive damage
Park the machine on level ground. Move the transmission control to the NEUTRAL position and engage the parking brake. Shut off the engine.
Open the right engine access door.
Turn the battery disconnect switch to the OFF position.
Release the tension on serpentine belt (1). Insert a 12.7 mm (0.50 inch) ratchet into the square hole in the belt tightener (2) and pry the belt tightener in a clockwise direction.
Remove the belt from the pulleys.
Install the new belt around the pulleys.
When you release the tension off the belt tensioner, the belt tensioner will automatically adjust the belt to the correct position. Recheck the belt tension.
Turn the battery disconnect switch to the ON position.
Close the right engine access door.Note: If a new belt is installed, recheck the belt adjustment after 30 minutes of operation.