TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Install 1. Position fan and advance unit housing sling (A) - 4910-795-7954 on rear fan drive housing and clutch assembly as shown. 2. Secure lifting sling to rear fan and accessory drive housing with two self-locking nuts (B) and lock washers that were removed in figure 5-130. 3. Secure lifting sling to fan vertical drive shaft with fan slotted nut (C). 4. Adjust lifting eye (D) in slot to assure balanced position of the assembly during removal (fig. 5-132). Remove 1. Remove slotted nut (C) attaching fan and advance unit housing sling (A) - 4910-795-7954 to fan vertical drive shaft. 2. Remove two self-locking nuts (B) and lock washers attaching lifting sling to rear fan and accessory drive housing. 3. Remove lifting sling (A). Figure 5-131. Installing or removing rear fan drive housing using fan and advance unit Figure 5-132. Removing rear fan and acces- sory drive housing assemblies. housing sling - 4910-795-7954. 5-73