Subtask 32-51-00-220-060
C. Check and record the secondary voltage at the sensor 4GC NOTE : You must do a check of the sensor 4GC voltage to keep a reference
____ position of the nose wheel if a problem occurs during the adjustment of the gearbox.
(1)
On panel 402VU, make sure that the A/SKID & N/W STRG switch in OFF position.
(2)
Disconnect the connector (4) from the RVDT 4GC (1).
(3)
Connect the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST (F26792000-1) (3) between the connector (4) and the RVDT 4GC (1).
(4)
Connect an AC voltmeter (minimum range: 0-20V, accuracy: 1 mV, frequency: 50-2000 Hz) to the SECONDARY VOLTAGE connections on the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST (3).
(5)
Make sure that the CBs of the BSCU SYS2 (3GG and 4GG) are open.
(6)
On panel 402VU, put the A/SKID & N/W STRG switch in ON position.
(7)
Stage 4:
(a)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(3) set the selector switch to U1.
(b)
Record the voltage (U1)(in AC voltage).
(c)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(3) set the selector switch to U2.
(d)
Record the voltage (U2)(in AC voltage).
(e)
Calculate the algebraic value U:
R 1EFF : 005-049, 055-099, 101-149, 151-199, 1 32-51-00Page 591 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1 U = (U1 - U2)
(8)
On panel 402VU, put the A/SKID & N/W STRG switch in OFF position.
(9)
Remove the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(3) from the sensor 4GC. Subtask 32-51-00-820-060
D. Set the NWS Zero Position for the sensor 3GC
(1)
On panel 402VU, make sure that the A/SKID & N/W STRG switch in OFF position.
(2)
Disconnect the connector (4) from the RVDT 3GC (1).
(3)
Connect the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST (F26792000-1) (3) between the connector (4) and the RVDT 3GC (1).
(4)
Connect an AC voltmeter (minimum range: 0-20V, accuracy: 1 mV, frequency: 50-2000 Hz) to the SECONDARY VOLTAGE connections on the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST (3).
(5)
Make sure that the CBs of the BSCU SYS2 (3GG and 4GG) are open.
(6)
On panel 402VU, put the A/SKID & N/W STRG switch in ON position.
(7)
Stage 5:
(a)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(3) set the selector switch to U1.
(b)
Record the voltage (U1)(in AC voltage).
(c)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(3) set the selector switch to U2.
(d)
Record the voltage (U2)(in AC voltage).
(e)
Calculate the algebraic value B:
B = (U1 - U2)
(8)
Stage 6:
(a) Calculate the algebraic value C:
C = B - A
R 1EFF : 005-049, 055-099, 101-149, 151-199, 1 32-51-00Page 592 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1
(9) Stage 7:
(a) Use a spatula to remove the sealant:
-
from the areas identified S
-
from the housing of the worm screw (5)
NOTE : Do not cause damage to the surface protections on these
____
parts.
(b)
On the sensor box, loosen the screws (2) to release the sensor (1).
(c)
On the sensor box, turn the worm screw (5) to get the algebraic
difference between U1 and U2 secondary voltage: C (U1 - U2) = C
NOTE : When you turn the worm screw (5), the sensor moves and
____ changes the secondary voltages U1 and U2. When you turn the worm screw (5):
-
in one direction, U1 increases and U2 decreases,
-
in the other direction, U2 increases and U1 decreases.
(d) Record the voltages U1 and U2 (in AC voltage).
(10)
TORQUE the screws (2) to between 0.29 and 0.35 m.daN (25.66 and 30.97 lbf.in).
(11)
Stage 8:
(a)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(3) set the selector switch to U1.
(b)
Record the voltage (U1)(in AC voltage).
(c)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
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