Checking Belt Wear

RG24411-UN-18SEP13

A - Fan Belt Tensioner Assembly

B - Alternator Belt Tensioner Assembly

NOTE: While belt is loosened, inspect pulleys and bearings. Rotate and feel for hard turning or any unusual sounds. If pulleys or bearings need replacement, see your John Deere dealer.

The belt tensioner is designed to operate within the limit of arm movement provided by the cast stops when correct belt length and geometry is used.

Visually inspect cast stops on belt tensioner assemblies (A and B).

If the tensioner stop on swing arm is hitting the fixed stop, check mounting brackets (alternator, belt tensioner, idler pulley, etc.) and the belt length.

• Verify belt grooves mate correctly with all pulleys
• Inspect for excessive cracks
• Inspect for glazing
• Inspect for tears or cuts

Replace belt as needed based on wear and belt condition. Use correct belt routing during installation (see Replacing Fan and Alternator Belts in the Service As Required Section).