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1) Install pump (12) on its bracket (20). 2) Secure pump (12) with clamp (5). Do not tighten. 3) Remove the blanking caps, connect tubes (15) and (19) - refer to 20-00-02. Do not tighten. 4) Tighten clamp (5) and lockwire it. 5) Tighten tubes (15) and (19) - refer to 20-00-02. 6) Run air vent hose (9) into grommet (8). CAUTION : DO NOT FORGET TO SECURE GROUNDING WIRE. 7) Secure noise filter (1) and grounding wire (2) with bolt (4) and washer (3). 8) Connect electrical connector (6). 9) Set fuel selector to "LEFT" or "RIGHT" position. 10) Bleed the fuel system - refer to 12-11-02. CAUTION : MAKE SURE THAT THE SELECTED TANK CONTAINS FUEL BEFORE ACTUATING THE ELECTRIC PUMP. 11) Perform a leakage test with the fuel system pressurized - refer to 28-00-00 and check the fuel pump indicator light on the advisory panel for operation. 12) Check for leaks. 13) Mark with a red paint line unions (11), (14) and (16), nuts of tubes (15) and (19), nut (17) and pump (12). 14) Remove the drain pan. 15) Make sure all the tools and materials are removed and the work area is clean and free from debris. 16) Install the inspection door 214. 17) Perform a test run-up - refer to 05-30-02. AEAB Validity : S / N 731 - 9999 28-20-01 (DM) Page 402 SEP 02 1 - Noise filter 2 - Grounding wire 3 - Washer 4 - Bolt 5 - Clamp 6 - Electrical connector 7 - Inspection door 8 - Grommet 9 - Air vent hose 10 - Clamp 11 - Union 12 - Pump 13 - 0-ring 14 - Union 15 - Tube 16 - Elbow union 17 - Nut 18 - 0-ring 19 - Tube 20 - Bracket Electric pump - Removal / Installation Figure 401 PAGE INTENTIONALLY LEFT BLANK AEAB Validity : S / N 731 - 9999 28-20-01 (DM) Page 404 SEP 02 REMOVAL / INSTALLATION WARNING : OBEY THE SAFETY PRECAUTIONS DESCRIBED IN 28-00-00. 1. REMOVAL OF THE FILTER (Figure 401) A. Tools and consumable materials - Drain pan 0.5 US Gal (2 liters) B. Procedure WARNING : APPLY THE MAINTENANCE PROCEDURE OF THE FUEL SYSTEM — REFER TO 28-00-00. 1) Open main switch-breaker. 2) Set the fuel selector to "CLOSED" position. 3) Remove the engine cowlings - refer to 71-10-01. 4) Put a drain pan beneath filter assembly (6). 5) Drain the fuel system in the fuselage - refer to 12-11-02. 6) Cut and discard lockwire of clamp (5) which attaches bowl (1) to filter assembly (6). 7) Hold bowl (1) and remove clamp (5) which attaches bowl (1) to filter assembly (6). 8) Remove bowl (1) and discard 0-ring. 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：TB20 MAINTENANCE MANUAL 28 FUEL TB20飞机维护手册 燃油(25) |
