Automatic Belt Tensioner Bracket (13-06) Section 13 - Electrical Equipment - Group 13 M11 Page 13-6 Inspect the tensioner for evidence of the pivoting ten- sioner arm contacting the stationary circular base. If there is evidence of these two areas contacting, the pivot tube bushing has failed and the tensioner must be replaced. Automatic Belt Tensioner Bracket (Bus Applications) - Cleaning and Inspec- tion for Reuse (13-06) Cleaning Use solvent to clean the tensioner bracket. Dry with com- pressed air. Inspect the bracket for cracks around the capscrew mount- ing and tensioner locator holes. Measure the tensioner locator hole inside diameter at two locations 90 degrees apart.
Tensioner Locator Hole I.D. mm in 4.00 MIN 0.354 4.50 MAX 0.374 Replace the bracket if the locator hole inside diameter is not within the specifications given.