TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
Page 432 of 779
Remove 1. Separate right camshaft drive inner support (A) from accessory drive housing and remove camshaft drive gearshaft assembly. 2. Remove and discard preformed packing (B) from support. 3. Separate left camshaft drive inner support (C) from accessory drive housing and remove camshaft drive gearshaft assembly. Remove and discard preformed packing (B) from support. Install 1. Position a new preformed packing (B) on left cam- shaft drive inner support (C). 2. Position camshaft drive gearshaft assembly in ac- cessory drive housing and position support (C) in housing and on gearshaft assembly. 3. Position a new preformed packing (B) on right camshaft drive inner support (A). Position camshaft drive gearshaft assembly in accessory drive housing and position support (A) in housing and on gearshaft assembly. Figure 6-160. Removing or installing right and left camshaft drive inner supports Remove 1. Straighten tab on tab washer and remove bolt (A), tab washer, and lock plate. Discard tab washer. 2. Remove fan driven gearshaft (B) and ball bearings as a unit Install 1. Position fan driven gearshaft (B) and ball bearings as a unit in fan drive housing. 2. Install bolt (A), new tab washer, and lock plate and bend tab on washer over bolt. Figure 6-161. Removing or installing fan driven gearshaft and ball bearings as a unit. and preformed packing. 6-138