(17)
Remove the RVDT 3GC (16) (Ref. TASK 32-51-19-000-001).
(18)
Carefully loosen the screws (11) (one turn) through elongated holes of the ADJUSTING TOOL - NWS GEARBOX (13). Leave the ADJUSTING TOOL -NWS GEARBOX (13) installed.
(19)
Install the RVDT 3GC (16) (Ref. TASK 32-51-19-400-001).
(20)
On panel 402VU, put the A/SKID & N/W STRG switch in ON position.
(21)
Stage 7:
(a) Calculate the algebraic value D:
D = C - A
(22)
Stage 8:
(a) On the ADJUSTING TOOL - NWS GEARBOX, turn the two knurled adjusters (14) to move the drive plate (12) of the gearbox (10)) to get the algebraic difference between U1 and U2 secondary voltage: D
(U1 - U2) = D
NOTE : When you turn the knurled adjusters, the gear box plate
____ (12) moves and changes the secondary voltages U1 and U2. When you turn the knurled adjusters:
-
in one direction, U1 increases and U2 decreases,
-
in the other direction, U2 increases and U1 decreases.
(b) Record the voltages U1 and U2 (in AC voltage).
(23)
Tighten the two knurled adjusters (14) to keep the position of the drive plate.
(24)
On panel 402VU, put the A/SKID & N/W STRG switch in OFF position.
(25)
Remove the RVDT 3GC (16) (Ref. TASK 32-51-19-000-001).
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(26)
Tighten the screws (11) through elongated holes of the ADJUSTING TOOL
-NWS GEARBOX (13).
(27)
Install the RVDT 3GC (16) (Ref. TASK 32-51-19-400-001).
(28)
On panel 402VU, put the A/SKID & N/W STRG switch in ON position.
(29)
Stage 9:
(a)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(18) 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
(18) set the selector switch to U2.
(d)
Record the voltage (U2)(in AC voltage).
(e)
Check that the algebraic value E:
(U1 - U2) = E = D +/- 10mV
(f)
If the value E is not in the limits, do the procedure from stage 6 again.
(30)
If the value is correct, on panel 402VU, put the A/SKID & N/W STRG switch in OFF position.
(31)
Remove the RVDT 3GC (16) (Ref. TASK 32-51-19-000-001).
(32)
Loosen the knurled adjusters (14).
(33)
Remove the ADJUSTING TOOL - NWS GEARBOX (13).
(34)
Install the RVDT 3GC (16) (Ref. TASK 32-51-19-400-001).
(35)
On panel 402VU, put the A/SKID & N/W STRG switch in ON position.
(36)
Stage 10:
(a)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(18) 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
(18) set the selector switch to U2.
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(d)
Record the voltage (U2)(in AC voltage).
(e)
Calculate the algebraic value F:
(U1 - U2) = F
(37)
Stage 11:
Make sure that:
F = (B - A) +/- 20mV
(38)
On panel 402VU, put the A/SKID & N/W STRG switch in OFF position.
(39)
Remove the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST (18).
(40)
Connect the electrical connector (19) to the RVDT 3GC (16).
Subtask 32-51-00-820-052
E. Set the NWS Zero Position for the sensor 4GC
NOTE : It is necessary to adjust the gear box/sensor 4GC at the same
____
value as the gear box/sensor 3GC to prevent:
-differences between the command and monitoring acquisition thresholds,
-unwanted fault messages.
(1)
On panel 402VU, make sure that the A/SKID & N/W STRG switch in OFF position.
(2)
Remove the RVDT 4GC (16) (Ref. TASK 32-51-19-000-001).
(3)
On the ADJUSTING TOOL - NWS GEARBOX (F26630200) (13), loosen the two knurled adjusters (14) so that the inner part of the ADJUSTING TOOL -NWS GEARBOX (13) can turn freely.
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