Physical Inspection

NOTE:
^ Routine inspection of the belt may reveal cracks in the belt ribs. These cracks will not impair belt performance and are not a basis for belt replacement. If sections of the belt are missing, the belt should be replaced.
^ Do not use drive belt dressings to extend belt life. Use of belt dressing will soften the belts and cause deterioration. Oil or grease contamination on the belt or pulleys will also deteriorate the belt.

Check the drive belt for looseness, damage, or fabric delamination. It the belt is loose, check the belt tensioner for proper operation. The belt tensioner is not adjustable. If it is not working properly, it must be replaced. If the belt is delaminated or damaged, replace it.

NOTE
^ Cracks across the rib material are a normal part of the belt aging process. Cracks do not affect belt operation, and do not indicate a need to replace it.
^ Check the belt length scale on the tensioner. If it reads outside the "acceptable" range, check for proper routing as shown on the belt routing label and in this section. Also check for proper tracking of belt ribs in the pulley grooves, correct pulley sizes (including idlers), and correct belt length.
^ Multiple rib belts stretch and wear very little. Normal stretch and wear rarely exceeds 10 mm (3/8 inch) on the belt length scale.