INSTALLATION - TM-9-6115-668-13

Figure 4-64. Silencer Assembly, Right Side Maintenance

2. Insert new sealing ring

TM-9-6115-668-13 5Kw 28VDC Auxiliary Power Unit (APU) MEP 952B Manual
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TM 9-6115-668-13 4.84 SCAVENGE PUMP ASSEMBLY MAINTENANCE. This task covers: a. Removal b. Installation General Mechanic’s Tool Kit (item 2, appendix B) Automotive Fuel and Electrical System Repair, Tool Kit (item 3, appendix B) Reference Generator Set 150 kW shut down, paragraph 2.5.2 Sealing ring Sealing tape (item 19, appendix E) 1. Open flap (2, figure 6-65) on unit hood assembly. Place a container underneath scavenge pump. 2. Remove collar nut (21) from threaded bushing (20) on scavenge pump (6). 3. Undo VELCRO strap and remove oil outlet pipe assembly (21 to 29). After removal, plug oil line (17) and tie up. 4. Remove collar nut (11) from shutoff valve (18) and remove oil line (17). 5. Remove two nuts (9) with two serrated lock washers (8) and two washers (7). 6. Pull out two screws (4) with two washers (5) and remove scavenge pump (6) with shutoff valve (18) from holder (10). 7. Using a suitable hold damp scavenge pump (6), unscrew shutoff valve (18) and set aside for re- use. 8. Unscrew threaded bushing (20) from scavenge pump (6) and remove together with sealing ring (19). Discard sealing ring (19). NOTE Use new sealing ring (19) and new thread sealing taps. 1. Clamp scavenge pump (6), wrap sealing tape around pump-end threads of shutoff valve (18) and screw in shutoff valve (18). 4-210

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