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TB20 MAINTENANCE MANUAL 28 FUEL TB20飞机维护手册 燃油(49)

时间:2011-11-02 15:43来源:蓝天飞行翻译 作者:航空
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5) In case of significant deviations (deviation greater than 50 ohms), calibration should be verified.
6) For each value measured "infinite", the wiring is cut.
7) For each value measured "0" ohm, there is a short-circuit.
8) Install engine monitoring cluster (2) - refer to 31-10-03.
AEAB
Validity : S / N 275 - 968, 970 - 1184, 1186 - 1213,
1215 - 1477, 1479 - 1505, 1509 - 1512 28-40 0 1Page 602
(EA) SEP 02
 
4. CHECK OF FUEL TANK LEVEL INDICATORS AND FUEL ELECTRICAL SYSTEM IN FUSELAGE AND WINGS (oblong float gages) (Figure 603)
A. Tools and consumable materials - Ohmmeter
B. Procedure
NOTE : No operation on the engine monitoring cluster is allowed. In case of failure, the engine monitoring cluster shall be replaced.
S / N 525 - 968, 970 - 1184. 1186 - 1213, 1215 - 1477, 1479 - 1505, 1509 - 1512
1) Remove engine monitoring cluster (2) - refer to 31-10-03.
2) Using an ohmmeter, measure on electric connector (1) the resistance between the positive terminals (No. 1, 2, 6 and 7) and the ground terminals (No. 11 and 12).
3) Compare the measurements with the Table Figure 603 for each configuration of the tanks (full and empty).
4) If the value of each tank configuration (from full to empty) remains at the maximum value with an empty tank, the float of this fuel level gage must be defective (disconnected or pierced and full of fuel etc.).
5) In case of significant deviations (deviation greater than 50 ohms), calibration should be verified.
6) For each value measured "infinite", the wiring is cut.
7) For each value measured "0" ohm, there is a short-circuit.
8) Install engine monitoring cluster (2) - refer to 31-10-03.
AEAB
Validity : S / N 275 - 968, 970 - 1184, 1186 - 1213,
1215 - 1477, 1479 - 1505, 1509 - 1512 28 40-01 Page 603
(EA) SEP 02
 
1 - Electric connector
Gages - Inspection / Check
Figure 601
AEAB
Validity : S / N 275 - 968, 970 - 1184, 1186 - 1213,
1215 - 1477, 1479 - 1505, 1509 - 1512 28-40 01 Page 604
(EA) SEP 02
 
1 - Electric connector
2 - Engine monitoring cluster
EJ5E
 
EJ1E
EP1
PJ3
EM1
III EP2N
III EP1N
11 12 7 6 14 10 3 8 1
 
 

Tank gage Cable Terminal Full 3/4 1/2 1/4 Empty
R.H. wing tip EJ2E 2 7 Q 145 Q 285 52 290 Q
(4- 20 ; - 0) 290 Q
(4- 20 ; - 0)
R.H. wing root EJ4E 1 7 Q 7 Q 7 Q 67 Q 290 Q
(+ 20 ; - 0)
L.H. wing tip EJ1E 6 7 Q 145 Q 285 Q 290 Q
(+ 20 ; - 0) 290 Q
(+ 20 ; - 0)
L.H. wing root EJ5E 7 752 7 Q 7 Q 67 Q 290 Q
 
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