4.33 TWO STEP FUEL FILTER CARTRIDGE MAINTENANCE

TM-9-6115-668-13 5Kw 28VDC Auxiliary Power Unit (APU) MEP 952B Manual
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TM 9-6115-668-13 4.33 TWO STEP FUEL FILTER CARTRIDGE 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, paragraph 2.5.2 (item 3, appendix B) Materials/Parts Sealing ring Filter cartridges (one is felt and one is paper) Lubricating grease (item 9, appendix E) REMOVAL WARNING Make sure that there are no open flames in the vicinity, and that fuel cannot splash onto hot components. Failure to observe this warning could result in severe personal Injury or death. 1. Open flap (1, figure 4-37). CAUTION Place a drain pan under the two step fuel filter set to collect fuel. 2. Remove drain plugs (12, 22) and sealing rings (13, 23) and discard sealing rings (13, 23). 3. Remove bleed screws (19, 30) and sealing rings (18, 29) and allow all the fuel to flow out of filter cups (14, 24). Discard sealing rings (18, 29). NOTE Remove cups in sequence, holding tightly. 4. Remove screw (21) and washer (20) from top (17) of two step fuel filter. 5. Remove filter cup (14), sealing ring (16), and filter insert (15). Discard sealing ring (16) and filter insert (15). 6. Empty remaining fuel from filter cups (14) into drain pan. 4 - 8 0

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