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5) Pull rod (14) towards the wing tip. 6) Disconnect electric connector (10) from oscillator (7). 7) Remove bolts (9) and washers (8) and retain oscillator (7). 8) Hold sensor (3) or (3A) through tight inspection door and remove and discard locknuts (11) and retain washers (12). 9) Remove sensor (3) or (3A) and discard 0-ring (2). 10) Remove bolts (6) and molded spacer (13) from base (1). Post-MOD. 194 11) Remove sealant from molded spacer (13), washers (12) and bolts (6) using a spatula and clean the surfaces with a lintfree clean cloth moistened with isopropyl alcohol (TB 10-002). 12) Dry the surfaces using a hot air generator. I AFAC Validity : S/N 969,1185,1214,1478,1506 - 1508,1513 - 9999 28-40-01 (DM) Page 401 SEP 04 2. INSTALLATION OF THE GAGES (Figure 401) A. Tools and consumable materials - Petrolatum (TB 04-012) - Sealant (TB 08-004B) - Isopropyl alcohol (TB 10-002) - Lintfree clean cloth B. Procedure WARNING : APPLY THE MAINTENANCE PROCEDURE OF THE FUEL TANKS — REFER TO 28-00-00. CAUTION : INSTALL THE SO-CALLED "CENTERED" GAGES (3A) ON THE WING TIP SIDE. INSTALL THE SO-CALLED "OFF-CENTERED" GAGES (3) ON THE WING ROOT SIDE. CAUTION : A GAGE INCLUDES ONE SENSOR AND ONE OSCILLATOR. INSTALLATION OF ONE OSCILLATOR AND ONE SENSOR WITH DIFFERENT AMENDMENTS (A00 OR A01 OR A02...) IS PROHIBITED. BUT INSTALLATION OF TWO GAGES WITH DIFFERENT AMENDMENTS (A00 OR A01 OR A02...) IS AUTHORIZED. 1) Check molded spacer (13) for condition. Replace it if necessary. 2) Apply sealant (TB 08-004B) to bolts (6). 3) Secure molded spacer (13) onto base (1) with bolts (6). 4) Make sure there is no sealant on bearing surface of 0-ring (2) inside the tank. 5) Put sensor (3) or (3A) equipped with a new 0-ring (2) through the tight inspection door. NOTE : During installation of sensor (3) or (3A) hold 0-ring (2) with petrolatum (TB 04-012). 6) Install and attach sensor (3) or (3A) onto molded spacer (13) with washers (12) and new locknuts (11). Torque - refer to 20-00-01. CAUTION : DO NOT APPLY SEALANT TO THREADED RODS (4) OF SENSOR (3) OR (3A) TO AVOID CONNECTION PORTS OF OSCILLATOR (7) FROM BEING BLOCKED. 7) Make a sealant bead (5) around washers (12) and bolts (6) with sealant (TB 08-004B) - refer to Detail D. 8) Wipe off excess sealant using a lintfree clean cloth moistened with isopropyl alcohol (TB 10-002). 9) Install and secure oscillator (7) onto threaded rods (4) of sensor (3) or (3A) using washers (8) and bolts (9). 10) Connect electric connector (10) to oscillator (7). 11) Install rod (14) and secure it to bellcranks (16) and (24) with bolts (15) and (26), washers (17) and (25) and nuts (18) and (21). Install new cotter pins (19) and (22). 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(43) |
