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17 Carefully set the auto-transformer to have a very low displacement speed (lower than 1 mm/s (0.039 in/s)).
18 Set the actuator to the MECHANICAL STOP RETRACTED position (door fully opened).
19 Measure the distance E between the measurement point X and the measurement point Y.
20 Carefully set the auto-transformer to have a displacement speed between 3 mm/s and 5 mm/s (between 0.118 in/s and 0.197 in/s).
21 Set the actuator to the ELECTRICAL EXTENDED position (door flight closed).
Make sure that DE/DF = 0.9273 + 0/- 0.0080.
Record DE/DF.
Make sure that DRF – D = 73,6 ± 2,5 mm (2.8976 ± 0.0984 in).
Record DRF – D.
Make sure that the voltage ratio AB/AC =
0.304 ± 0.020. Record AB/AC.
Make sure that the voltage ratio DE/DF =
0.304 ± 0.020. Record DE/DF.
Make sure that DRF – E = 102 ± 0,3 mm (4.0157 ± 0.0118 in).
Record DRF – E.
Page 1013
21-53-12 JUN 15/10
ACTION RESULT

22 Measure, with the ratiometers, the voltage ratio AB/AC between pin A and pin B and between pin A and pin C (AC).
23 Measure, with the ratiometers, the voltage ratio DE/DF between pin D and pin E and between pin D and pin
F.
24 Set the actuator to the ELECTRICAL RETRACTED position (door flight opened).
Make sure that the voltage ratio AB/AC =
0.902 + 0/- 0.010. Record AB/AC.
Make sure that the voltage ratio DE/DF =
0.902 + 0/- 0.010. Record DE/DF.
Page 1014
Mechanical Stop Extended Position

pin E

VERSIONS ABC - STROKES, MICROSWITCHES AND POTENTIOMETER TEST
Figure 1005/GRAPHIC 21-53-12-991-006-A01

Page 1015
21-53-12
JUN 15/10
(b) For Versions DE
ACTION  RESULT

1  Connect the actuator to the Electrical Test Set-Up (ratiometers) (Ref. to Fig. 1001).
2  Carefully set the auto-transformer to have a very low displacement speed (lower than 1 mm/s (0.039 in/s)) (Ref. to Fig. 1003).
3  Set the actuator to the MECHANICAL STOP RETRACTED position (door fully closed).
4  (Ref. to Fig. 1006).
5  Measure the distance DRF between the measurement point X and the measurement point Y.
6  Measure the total resistance X of the main potentiometer between pin A and pin C of the connector.
7  Measure the total resistance Y of the secondary potentiometer between pin D and pin F of the connector.
8  Calculate |X – Y|.
9  Measure, with the ratiometers, the voltage ratio AB/AC between pin A and pin B and between pin A and pin
C.
10 Measure, with the ratiometers, the voltage ratio DE/DF between pin D and pin E and between pin D and pin
F.
11 Carefully set the auto-transformer to have a displacement speed between 3 mm/s and 5 mm/s (between 0.118 in/s and 0.197 in/s).
Record DRF.
Make sure that X = 6600 ± 660 .. Record X.
Make sure that Y = 6600 ± 660 .. Record Y.
Make sure that |X – Y| < 660 .. Record |X – Y|.
Make sure that AB/AC = 0.0634 +0.0080/-0.
Record AB/AC.
Make sure that DE/DF = 0.0634 +0.0080/-0.
Record DE/DF.
Page 1016
ACTION RESULT

12 Set the actuator to the ELECTRICAL EXTENDED position (door flight opened).
13 Measure the distance E between the measurement point X and the measurement point Y.
14 Measure, with the ratiometers, the voltage ratio AB/AC between pin A and pin B and between pin A and pin
C.
15 Measure, with the ratiometers, the voltage ratio DE/DF between pin D and pin E and between pin D and pin
F.
16 Set the actuator to the ELECTRICAL RETRACTED position (door flight closed).
17 Measure the distance D between the measurement point X and the measurement point Y.
18 Measure, with the ratiometers, the voltage ratio AB/AC between pin A and pin B and between pin A and pin
　
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