4.38 FUEL LINES AND PREFILTER ASSEMBLY MAINTENANCE

Figure 4-40. Priming Pump Assembly Maintenance.

4.39 FUEL LINES AND 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 4.38 FUEL LINES AND PREFILTER ASSEMBLY MAINTENANCE. This task covers: a. Removal b. Service c. Installation INITIAL SETUP Materials/Parts Equipment Conditions Sealing rings Reference Generator Set 150 kW shut down, paragraph 2.5.2 REMOVAL 1. Open flap (1, figure 4-41). CAUTION Place collection container under prefilter assembly. 2. Remove bleed screw (3) and sealing rings from prefilter assembly (2) and drain fuel into container. Discard sealing rings. SERVICE 1. Unscrew handle (4) by turning to the left. 2. Install bleed screw (3) with new sealing ring three turns into prefilter assembly (2). 3. Pull and push handle (4) of priming pump (5) until fuel emerging from hole in screw threads of bleed screw (3) contains no bubbles and tighten bleed screw (3). INSTALLATION 1. Remove collection container under prefilter assembly. 2. Close Flap (1). 4 - 9 1

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