TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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b. Disassembly. Disassemble the crankcase and remove the crankcase from the overhaul stand following instructions which accompany figures 6-5 through 6-8. Remove 1. Remove two pipe plugs (A). 2. Remove four pipe plugs (B). 3. Remove pipe plug (C). 4. Cut locking wire and remove two drilled head bolts (D) attaching fuel pump drive gearshaft replacement cover. 5. Remove cover (E) and discard gasket. Note. Instructions covering pipe plugs (A) and fuel pump driven gearshaft replacement cover (E) are applicable to engines having a cover. Install 1. Position a new gasket and fuel pump driven gearshaft replacement cover (E) on crankcase. 2. Install two drilled head bolts (D) securing cover to crankcase and install locking wire securing bolts. 3. Install pipe plug (C). 4. Install four pipe plugs (B). 5. Install two pipe plugs (A). Figure 6-5. Removing or installing pipe plugs and fuel pump driven gearshaft replacement cover. Remove 1. Remove pipe plug (A). 2. Remove pipe plug (B). 3. Remove three self-locking nuts (C) and flat washers attaching fuel supply pump adapter replacement cover (D). 4. Remove cover (D) and discard gasket. Note. Instructions covering fuel supply pump adapter replacement cover (D) are applicable to engines having a cover. Install 1. Position a new gasket and fuel supply pump adapter replacement cover (D) on crankcase. 2. Install three self-locking nuts (C) and flat washers securing cover to crankcase. 3. Install pipe plug (B). 4. Install pipe plug (A). Figure 6-6. Removing or installing pipe plugs and fuel supply pump adapter replacement cover. 6-12