4.41 TWO STEP FUEL FILTER ASSEMBLY MAINTENANCE.

TM-9-6115-668-13 5Kw 28VDC Auxiliary Power Unit (APU) MEP 952B Manual
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TM 9-6115-668-13 4.41 TWO STEP FUEL FILTER ASSEMBLY MAINTENANCE. This task covers: a. Removal b. Installation INITIAL SETUP Tools Equipment Conditions General Mechanic’s Tool Kit Reference (item 2, appendix B) Generator Set 150 kW shut Automotive Fuel and Electrical System Repair, Tool Kit down, (item 3, appendix B) paragraph 2.5.2 Materials/Parts Sealing rings Plastic bag (item 21, appendix E) Rubber bands (item 22, appendix E) NOTE If fuel lines are not immediately reinstalled, bag the ends with plastic bags and secure with rubber bands. REMOVAL 1. Remove unit hood assembly (1, figure 4-42) as instructed in paragraph 4.14. CAUTION Place a container under heavy duty fuel filter set and priming pump to catch fuel as it emerges. After disconnecting, plug fuel lines and tie up. 2. Remove condensation drain plugs (30, 31) and sealing rings (29, 32). Discard sealing rings (29, 32). 3. Remove bleed screws (28, 34) with sealing rings (27, 33) and discard sealing rings (27, 33). Drain out fuel completely. NOTE Install bleed screws (27, 34) and condensation plugs (30, 31) finger tight only 4. Install condensation drain plugs (30, 31) with sealing rings (29, 32) and bleed screws (27, 34). 5. Remove hollow screw (24) with sealing rings (25, 26) and fuel supply line (23). Discard sealing rings (25, 26). 6. Remove hollow screw (35), sealing rings (36, 37) and fuel return line (38). Discard sealing rings (36, 37). 4 - 9 6

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