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. Cut locking wire (A). 2. Remove drilled head bolt (B) and lock plate. 3. Remove five slotted nuts (C) and flat washers at- taching pressure housing cover to pressure housing. 4. Separate and remove cover (D) from housing. Install 1. Position pressure housing cover (D) on pressure housing. 2. Install five slotted nuts (C) and flat washers securing Remove 1. Remove impeller drive shaft (A) from pressure housing. 2. Cut locking wire and remove four slotted nuts (B) and flat washers attaching scavenge oil pump inlet scoop on housing. 3. Remove inlet scoop (C). Do not remove screens. Install 1. Position scavenge oil pump inlet scoop(C) on pressure housing. 2. Install four slotted nuts (B) and flat washers securing inlet scoop on housing and install locking wire securing cover on housing. 3. Position lock plate on cover and install drilled head bolt (B). 4. Install locking wire (A) securing nuts. Figure 6-80. Removing or installing pressure housing cover (FSN 2815-895-6430 oil pump). Remove 1. Remove driven impeller (A) from pressure housing. 2. Remove drive impeller (B) from impeller drive shaft. Install 1. Install drive impeller (B) on impeller drive shaft. 2. Install driven impeller (A) in pressure housing. Figure 6-81. Removing or installing oil pump piston cooling drive and driven impellers. nuts. 3. Install impeller drive shaft (A) in pressure housing. Figure 6-82. Removing or installing scavenge oil pump inlet scoop (FSN 2815-679-4965 oil pump). 6-82