C. Lift the Aircraft
(1) Lift the aircraft on jacks (Ref. TASK 07-11-00-581-001).
Subtask 32-31-73-865-069
R D. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34
Subtask 32-31-73-010-055
E. Get Access
(1)
Put the access platform in position below the applicable zone 734(744).
(2)
Open the applicable MLG door (Ref. TASK 32-12-00-010-001).
(3)
Make sure that the GROUND LOCK SLEEVE (460005835) is on the applicable MLG door actuator (Ref. TASK 32-00-00-481-002).
4. Procedure
_________ (Ref. Fig. 501/TASK 32-31-73-991-016, 502/TASK 32-31-73-991-018, 503/TASK 32-31-73-991-019, 504/TASK 32-31-73-991-020) Subtask 32-31-73-220-079
A. Dimensional Check
(Ref. Fig. 501/TASK 32-31-73-991-016)
(1) For the MLG downlock proximity sensors 15GA(14GA), measure the clearances as follows:
(a) For a new MLG lockstay or sidestay:
1 Measure the dimension Z:
_
-make sure it is between 1.4 mm (0.0551 in.) and 1.6 mm (0.0629 in.).
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R 1 1
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R Adjustment MLG Downlock Proximity Sensors 14GA, 15GA, 16GA, 17GA Figure 501/TASK 32-31-73-991-016- 12 (SHEET 1)
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R Adjustment MLG Downlock Proximity Sensors 14GA, 15GA, 16GA, 17GA Figure 501/TASK 32-31-73-991-016- 22 (SHEET 2)
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MLG Lock-stay Actuator Hydraulic Pipe - Details
Figure 502/TASK 32-31-73-991-018
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Proximity Sensor Adjustment Dimensions 14GA, 15GA, 16GA, 17GA
Figure 503/TASK 32-31-73-991-019- 12 (SHEET 1)
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Proximity Sensor Adjustment Dimensions 14GA, 15GA, 16GA, 17GA
Figure 503/TASK 32-31-73-991-019- 22 (SHEET 2)
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R Check of the MLG Lockstay Over Center Position Figure 504/TASK 32-31-73-991-020
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2_ Measure the dimension X:
- make sure that it is between 0.7 mm (0.0275 in.) and 0.9 mm
(0.0354 in.).
(b) For an in service MLG lockstay or sidestay: 1 Measure the dimension Z:
_
-make sure that it is between 0.6 mm (0.0236 in.) and 2.4 mm (0.0944 in.).
2 Measure the dimension X:
_
-make sure that it is between 0.35 mm (0.0137 in.) and 1.25 mm (0.0492 in.).
(2) For the MLG downlock proximity sensors 17GA(16GA), measure the clearances as follows:
(a)
For a new MLG lockstay or sidestay:
(b)
For an in service lockstay or sidestay:
1_ Measure the dimension Z:
- make sure that it is between 1.4 mm (0.0551 in.) and 1.6 mm
(0.0629 in.).
2_ Measure the dimension X:
- make sure that it is between 2.4 mm (0.0944 in.) and 2.6 mm
(0.1023 in.).
1 Measure the dimension Z:
_
-make sure that it is between 1.05 mm (0.0413 in.) and 1.95 mm (0.0767 in.).
2 Measure the dimension X:
_
-make sure that it is between 2.2 mm (0.0866 in.) and 2.8 mm (0.1102 in.).
(3)
If the dimensions are correct, do the check of the proximity switch detection range in Para 4.B.
(4)
If the dimensions are incorrect, do the adjustment procedure in Para 4.C., then do the check of the proximity switch detection range in Para 4.B.
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Subtask 32-31-73-220-080
B. Check of the Proximity Switch Detection Range
(1)
Install the SPRING EXPANDER-MLG SIDE STAY (460005832) on the applicable MLG lock springs.
(2)
Remove the applicable MLG lock springs (Ref. TASK 32-11-19-000-001). (Ref. Fig. 502/TASK 32-31-73-991-018)
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