RING-SEAL 8F7559 - Caterpillar

Illustration 1 g03338555
(1) Belt tensioner
(2) Square drive used for belt replacement Inspect
To maximize the engine performance, inspect the belts for wear and for cracking. Replace belts that are worn or damaged.For applications that require multiple drive belts, replace the belts in matched sets. Replacing only one belt of a matched set will cause the new belt to carry more load because the older belt is stretched. The additional load on the new belt could cause the new belt to break.If the belts are too loose, vibration causes unnecessary wear on the belts and pulleys. Loose belts may slip enough to cause overheating.If the belts are too tight, unnecessary stresses are placed on the pulley bearings and on the belts. These stresses may shorten the service life of the components.Remove the belt guard, if equipped. Inspect the condition and adjustment of the alternator belts and accessory drive belts (if equipped).If the belt does not require replacement, install the belt guard. If the belt requires adjustment or replacement, follow the procedure below.Adjust
The belt tension does not require adjustment.Replace
Remove the front cover.
Insert a ratchet with a square drive into the square hole that is located in the tensioner for the fan drive belt. Rotate the tensioner clockwise in order to relieve tension on the fan drive belt. Remove the fan drive belt.
Then insert a ratchet with a square drive into the square hole that is located in the tensioner for the alternator belt.
Rotate the tensioner counterclockwise in order to relieve tension on the alternator belt. Remove the alternator belt.
Install the new belt correctly, as shown. Be sure that the belt is fully seated on the pulleys. The correct tension will automatically be applied when the ratchet is removed.
Replace the front cover.