COVER 9M1496 - Caterpillar

Illustration 1 g03661643
(1) Alternator
(2) Compressor
(3) Idler
(4) Tensioner
(5) AOC Clutch and Pump (if equipped)
(6) Crankshaft Pulley
(7) Serpentine Belt
Unlatch the engine hood and raise the engine hood.
Illustration 2 g06114636
(A) New belt
(B) Worn belt
Inspect the condition of the serpentine belt. 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.Tensioner keeps the correct tension on the belt. Insert a ratchet with a square drive into tensioner. Rotate the tensioner counterclockwise to relieve tension on the belt. Remove the belt.Install the new belt. Be sure that the new belt is routed correctly, as shown. Rotate the tensioner counterclockwise to install the new belt. Release the tensioner when the new belt is installed. The correct tension will automatically be applied.