TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Separate 1. Remove seven self-locking nuts (A) and flat washers. 2. Separate rear fan drive housing and accessory drive housing. 3. Cut locking wire and remove four bolts (B) and flat washers attaching fan drive control cover to fan drive housing. 4. Remove fan drive control cover (C). Remove and discard cover gasket. 5. Remove four pipe plugs (D), one from accessory drive housing and three from fan drive housing. Attach 1. Install four pipe plugs (D), one in accessory drive housing and three in fan drive housing. 2. Position a new fan drive control gasket on fan drive housing and position control cover (C) on gasket. 3. Install four bolts (B) and flat washers securing control cover to housing and install locking wire securing bolts. 4. Position accessory drive housing on fan drive housing. 5. Install seven self-locking nuts (A) and flat washers. Figure 6-166. Separating or attaching rear fan and accessory drive housings (housings equipped with control covers). 6-141