PLATE 2G3984 - Caterpillar

Inspect
Park the machine on level ground. Lower the bucket to the ground. Move the transmission control switch to the NEUTRAL position and engage the parking brake. Shut off the engine.
Open the engine access doors on the left-hand side of the machine.
Illustration 1 g03601521
Front belt guard removed for this view.
(1) Belt tensioner
(2) Serpentine belt
Remove the front belt guard in order to access the serpentine belt for the engine.
Illustration 2 g06114636
(A) New belt
(B) Worn belt
Inspect the condition of the 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.Note: This machine is equipped with belt tensioner (1). The belt tensioner automatically adjusts the belt to the correct tension.
Install the front belt guard.
Close the engine access doors.Replace
Replace the belt if any of the following conditions exist:
Excessive cracking
Excessive wear
Excessive damage
Park the machine on level ground. Lower the bucket to the ground. Move the transmission control switch to the NEUTRAL position and engage the parking brake. Shut off the engine.
The battery disconnect switch is located in the service center on the left-hand side of the rear bumper. Turn the battery disconnect switch to the OFF position.
Open the engine access doors on the left-hand side of the machine.
Remove the front belt guard in order to access the serpentine belt for the engine.
Insert a ratchet into the square hole in belt tensioner (1). Use the ratchet to rotate the belt tensioner in order to release the tension on serpentine belt (2).
Remove the belt.
Install a new belt.
When you release the force of the ratchet from the belt tensioner, the belt tensioner will automatically adjust the belt to the correct tension.
Install the front belt guard.
Close the engine access doors.
Turn the battery disconnect switch to the ON position.