TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Remove 1. Remove nine self-locking nuts (A) and flat washers attaching accessory drive housing to rear fan and ac- cessory drive housing mounting base. 2. Remove five self-locking nuts (B) and flat washers attaching rear fan drive housing to mounting base. Install 1. Install five self-locking nuts (B) and flat washers securing rear fan drive housing to rear fan and ac- cessory drive housing mounting base. 2. Install nine self-locking nuts (A) and flat washers securing rear fan drive housing to mounting base. Figure 5-129. Removing or installing attaching parts for rear fan and accessory drive housing assemblies-right side. Remove 1. Remove the remaining 12 self-locking nuts (A) and flat washers attaching rear fan and accessory drive housing assembly to mounting base. 2. Remove two self-locking nuts (B) and lock washers to provide for the attachment of fan and advance unit housing sling - 4910-795-7954. 3. Note that self-locking nut was removed from stud (C) when fire extinguisher tube was removed (figs. 5-89 and 5-90). 4. Remove one self-locking nut (D) and flat washer from each side of the drive housing mounting base flange. Install 1. Install one self-locking nut (D) and flat washer on each side of the drive housing mounting base flange. 2. One self-locking nut will be installed at stud (C) when fire extinguisher tube is installed (figs. 5-89 and 5-90). 3. Install two self-locking nuts (B) and lock washers used for the attachment of fan and advance unit housing sling - 4910-795-7954. 4. Install the remaining 12 self-locking nuts (A) and flat washers securing rear fan and accessory drive housing assembly to mounting base. Figure 5-130. Removing or installing attaching parts for rear fan and accessory drive housing assemblies-left side. 5-72