Subtask 32-51-00-865-077
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY 4GG M36 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/CTL 3GG M35
Subtask 32-51-00-865-078
D. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/BRAKING AND STEERING/SYS1/CTL 1GG M34 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY 2GG M33
4. Procedure
_________
(Ref. Fig. 509/TASK 32-51-00-991-012, 510/TASK 32-51-00-991-013)
NOTE : The voltages U1 and U2 are in volts (3V approximately).
____
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Adjustment of the Gear Box P/N C24764000 with Adjusting Tool F26630200, NLG
Cams as Reference
Figure 509/TASK 32-51-00-991-012
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Calculated Chart - Gear Box P/N C24764000 with Adjusting Tool F26630200, NLG Cams as Reference Figure 510/TASK 32-51-00-991-013
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Subtask 32-51-00-220-054
A. Check of the play on NLG cams
(1)
On the panel 402VU, put the A/SKID & N/W STRG switch in OFF position.
(2)
Disconnect the connector (19) from the RVDT 3GC (16).
(3)
Connect the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST (F26792000-1) (18) between the connector (19) and the RVDT 3GC (16).
(4)
On the panel 402VU, put the A/SKID & N/W STRG switch in ON position.
(5)
Connect a 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.
(6)
Check of the play on NLG cams
(a)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST set the selector switch to U1.
(b)
Manually move the wheels in steering mode on the RH stop. Record the voltage U1.
(c)
Manually move the wheels in steering mode on the LH stop. Record the voltage U1'.
(d)
From the voltage U1 and U1', calculate the average voltage U1".
(e)
Manually move the wheels in steering mode to get the voltage U1". NOTE : The angular travel of the nose wheels includes the NLG cam
____ play and the NLG torque link play.
Subtask 32-51-00-820-057
B. Set the NWS Zero Position
NOTE : The adjustment process is very sensitive.
____
NOTE : Do not move the wheels manually in the steering mode when you do
____
the adjustment procedure.
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(1)
Stage 1:
(a)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(18) set the selector switch to U1.
(b)
Record the voltage (U1).
(c)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST
(18) set the selector switch to U2.
(d)
Record the voltage (U2).
(e)
From the voltages U1 and U2, calculate the voltage U:
U = U1 - U2
(2)
If the voltage U is not equal to 0 +/- 20mV, adjust the gear box:
(a)
Remove the RVDT 3GC (16) (Ref. TASK 32-51-19-000-001).
(b)
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.
(c)
Install the ADJUSTING TOOL - NWS GEARBOX (13) on the N/WS gearbox
(10)
-put the stud (22) of the ADJUSTING TOOL - NWS GEARBOX (13) in the drive slot (23) of the gearbox plate (12),
-attach the ADJUSTING TOOL - NWS GEARBOX (13) on the gearbox
(10) with the screws (15).
(d)
Install the RVDT 3GC (16) (Ref. TASK 32-51-19-400-001)
- engage the spigot (20) in the hole (21) on the ADJUSTING TOOL -NWS GEARBOX (13),
-make sure that it is flush with the N/WS gearbox (10).
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