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3) Position filter / selector (21) assembly on its bracket (5) and on control tube (25) and attach it with bolts (3) and washers (4). 4) Install bolt (26), washer (1) and a new nut (2). 5) Make sure the fuel selector operates correctly - refer to 28-20-04 and set it to "CLOSED" position. 6) Remove the blanking caps, connect tubes (8), (13) and (20) onto unions (7), (12) and (15) - refer to 20-00-02. 7) Remove the blanking caps, connect hose (17) to bowl (10) and attach it with clamp (16). 8) Make sure clamp (18) is correctly attached to bleed (19). 9) Fill up the tanks - refer to 12-11-01. 10) Set the fuel selector to "LEFT" or "RIGHT" position. 11) Bleed the fuel system - refer to 12-11-02. CAUTION : MAKE SURE THAT THE SELECTED TANK CONTAINS FUEL BEFORE ACTUATING THE ELECTRIC PUMP. 12) Perform a leakage test with the fuel system pressurized - refer to 28-00-00. 13) Check for leaks. 14) Mark with a red paint line unions (7), (12) and (15), nuts of tubes (8), (13) and (20). 15) Remove the drain pan. 16) Make sure all the tools and materials are removed and the work area is clean and free from debris. 17) Install the cowling under hull 218. 18) Bond carpet to the R.H. pedestal side using adhesive (TB 08-907). 19) Install the R.H. front seat - refer to 25-11- 00. 20) Perform a test run-up - refer to 05-30-02. 3. REMOVAL OF THE FILTER (Figure 402) A. Tools and consumable materials - Drain pan 0.5 US Gal (2 liters) ADAC Validity : S / N 731 - 9999 28-20-02Page 402 (EA) SEP 02 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) Drain the fuel system in the fuselage - refer to 12-11-02. 4) Remove the inspection door 215 - refer to 06-30-00. 5) Put a drain pan beneath filter / selector (1). 6) Cut and discard lockwire. 7) Hold bowl (7) and loosen knurled nut (2) manually. 8) Disengage bowl (7). 9) Pull filter (6) downwards to remove it. 10) Discard seals (5), (8), (9) and (10). 4. INSTALLATION OF THE FILTER (Figure 402) A. Tools and consumable materials - Drain pan 0.5 US Gal (2 liters) - Stainless steel lockwire, dia. 0.025 in (0.6 mm) B. Procedure WARNING : APPLY THE MAINTENANCE PROCEDURE OF THE FUEL SYSTEM — REFER TO 28-00-00. 1) Install new seals (5), (8), (9) and (10). 2) Insert new lockwire on fixed section of filter / selector (1), twist it by 2 or 3 turns. CAUTION : AFTER 2 CLEANING PROCEDURES, FILTER (6) MUST BE REPLACED. 3) Clean or replace filter (6) and engage it onto filter / selector (1). 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(28) |
