Technical data

13773-001
28-40
Page 4 30 Nov 2000
B. Fuel Quantity Sensors
(1) Removal - Wing Tank Fuel Quantity Sensors
(a) Ensure BAT 1, BAT 2, and AVIONICS master switches are in the off position.
(b) Pull ENGINE INSTRUMENTS circuit breaker.
(c) Disconnect battery and insulate both cable ends to prevent accidental connection. (Refer
to 24-30)
(d) De-fuel airplane. (Refer to 12-10)
(e) Remove appropriate access panels (LW10 or RW10). (Refer to 6-00)
(f) Identify and disconnect wires to sensor.
(g) Remove screws securing sensor and remove sensor.
(2) Installation - Wing Tank Fuel Quantity Sensors
(a) Secure sensor and gasket to fuel tank.
(b) Connect wires to sensor.
(c) Remove sealant from access panel and its mating surface.
(d) Solvent clean the access panel and the mating surfaces. (Refer to 20-30)
(e) Faying surface seal access panel and its mating surfaces. (Refer to 20-10)
(f) Secure access panels. (Refer to 6-00)
(g) Fill fuel tanks full with approved fuel. (Refer to 12-10)
(h) Inspect fuel sender area for any signs of leakage. Repair as required.
(i) Connect battery. (Refer to 24-30)
(j) Reset ENGINE INSTRUMENTS circuit breaker.
(k) Adjust fuel quantity indicator. (Refer to 28-40)
(3) Removal - Wing Collector Tank Fuel Quantity Sensors
(a) Ensure BAT 1, BAT 2, and AVIONICS master switches are in off position.
(b) Pull ENGINE INSTRUMENTS circuit breaker.
(c) Disconnect battery and insulate both cable ends to prevent accidental connection. (Refer
to 24-30)
(d) De-fuel airplane. (Refer to 12-10)
(e) Remove appropriate access panels (LW3 and LW4 or RW3 and RW4). (Refer to 6-00)
(f) Identify and disconnect wires to sensor.
(g) Remove screws securing sensor and remove sensor.
(4) Installation - Wing Collector Tank Fuel Quantity Sensors
(a) Secure sensor and gasket to collector tank.
(b) Connect wires to sensor.
(c) Remove sealant from access panel and its mating surface.
(d) Solvent clean the access panel and its mating surfaces. (Refer to 20-30)
(e) Faying surface seal access panel its mating surfaces. (Refer to 20-10)
(f) Secure access panels. (Refer to 6-00)
(g) Fill fuel tanks full with approved fuel. (Refer to 12-10)
(h) Inspect fuel sender area for any signs of leakage. Repair as required.
(i) Connect battery. (Refer to 24-30)
(j) Reset ENGINE INSTRUMENTS circuit breaker.
(k) Adjust fuel quantity indicator. (Refer to 28-40)
(5) Test - Fuel Sensor Test
(a) Ensure BAT 1, BAT 2, and AVIONICS master switches are in off position.