NLG Downlock Proximity Sensors 18GA, 19GA Figure 510/TASK 32-31-73-991-024- 33 (SHEET 3)
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Subtask 32-31-73-820-054
F. Preparation for Adjustment of the NLG Downlock Proximity Sensors 18GA (19GA) (Ref. Fig. 510/TASK 32-31-73-991-024)
NOTE : It is permitted to install a sensor target without a spacer/shim
____ if the correct clearance can be set without the spacer/shim.
(1)
Make sure that the lock-link is on its mechanical stop.
(2)
If the dimension X for System 1 (18GA) is incorrect, do the steps that follow:
(a)
Make sure that the target mounting bracket (12) is in the correct condition.
(b)
Use a non metallic scraper to remove all sealant from the screws
(8) and the washers (9).
(c)
Remove the screws (8), the washers (9) and the target (10).
(d)
If installed, carefully remove the shim (11) with a non metallic wedge. Discard the shim.
(3)
If the dimension Z for System 1 (18GA) is incorrect, do the steps that follow:
(a)
Make sure that the sensor mounting bracket (2) is in the correct condition.
(b)
Disconnect the electrical connector (1) from the proximity sensor (6).
(c)
Make sure the electrical connector (1) is in the correct condition.
(d)
Put blanking caps on the applicable electrical connectors.
(e)
Use a non metallic scraper to remove all sealant from the nuts (3), the washers (4) and the screws (7).
(f)
Remove the nuts (3), the washers (4), the screws (7) and the proximity sensor (6).
(g)
If installed, carefully remove the shim (5) with a non metallic wedge. Discard the shim.
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(4)
If the dimension Z for System 2 (19GA) is incorrect, do the steps that follow:
(a)
Make sure that the target mounting bracket (12) is in the correct condition.
(b)
Use a non metallic scraper to remove all sealant from the screws
(16) and the washers (15).
(c)
Remove the screws (16), the washers (15) and the target (14).
(d)
If installed, carefully remove the shim (13) with a non metallic wedge. Discard the shim.
(5)
If the dimension X for System 2 (19GA) is incorrect, do the steps that follow:
(a)
Make sure that the sensor mounting bracket (21) is in the correct condition.
(b)
Disconnect the electrical connector (17) from the proximity sensor (23).
(c)
Make sure the electrical connector (17) is in the correct condition.
(d)
Put blanking caps on the applicable electrical connectors.
(e)
Use a non metallic scraper to remove all sealant from the nuts (19), the washers (20) and the screws (18).
(f)
Remove the nuts (19), the washers (20), the screws (18) and the proximity sensor (23).
(g)
If installed, carefully remove the shim (22) with a non metallic wedge. Discard the shim.
Subtask 32-31-73-820-058
G. Adjustment of the NLG Downlock Proximity Sensors 18GA (19GA)
(Ref. Fig. 510/TASK 32-31-73-991-024)
NOTE : It is permitted to install a sensor target without a spacer/shim
____ if the correct clearance can be set without the spacer/shim. If a spacer/shim is necessary to set the correct clearance, do the procedure that follows.
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(1)
To get the correct dimension X for System 1 (18GA), adjust the new shim (11) as follows:
(a)
Temporarily install the shim (11) with the washers (9) and the bolts (8).
(b)
Calculate the shim thickness (Dimension J):
-
measure the dimension H
-
measure the dimension K.
(c)
Use the formula that follows to check that the dimension H is
5.75 mm (0.2263 in.) +/- 0.1 mm (0.0039 in.).
Dim K - Dim H = Dim J
(d)
Put a mark on the shim to show its position.
(e)
Remove the bolts (8), the washers (9) and the shim (11).
(f)
If the shim (11) was adjusted, do the work steps in Para 4.H.
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