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B. Operational Test of the Pivoting Door Deploy Switch
(1) Method 2: NOTE : If you use method 2 you do not have to open the fan cowl
____
doors.
(a) Remove the 3 screws (10) that attach the deploy switch access door (5).
(b) Remove the deploy switch access door (5).
(c) Disconnect the plug on the beam harness (25) from the receptacle
(20) on the deploy switch (15).
(d) Prepare the ohmmeter (V16902) for the test: 1 Set the functional control of the ohmmeter (V16902) to OHMS.
_
2 Set the range control to the R x 1 ohms range.
_
3 Set the ohmmeter (V16902) to zero.
_
(e) Connect the leads of the ohmmeter. CAUTION : DO NOT INSERT AN OVERSIZED TEST PROBE INTO A CONNECTOR
_______ SOCKET. DO NOT LET THE TEST LEAD HANG FROM A CONNECTOR SOCKET. THE CONNECTOR MAY BE DAMAGED OR THE PIN/SOCKET MAY BE BENT.
1 Connect the leads of the ohmmeter (V16902) to pins 2 and 3 of
_ the receptacle F2 (E2) (30). Check that the dial on the ohmmeter is at infinity.
a Manually open the upper and lower blocker doors to the
_ fully deployed position. The dial on the ohmmeter (V16902) will move to zero.
b Manually close the upper blocker door to the fully stowed
_ position. At the beginning of the blocker door movement, the dial on the ohmmeter (V16902) will move to infinity.
c Manually open the upper blocker door to the fully deployed
_ position. The dial on the ohmmeter (V16902) will move to zero.
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d Manually close the lower blocker door to the fully stowed
_ position. At the beginning of the blocker door movement, the dial on the ohmmeter (V16902) will move to infinity.
e Manually close the upper blocker door to the fully stowed
_
position.
(f) Connect the leads of the ohmmeter (V16902) to pins 4 and 5 of the receptacle F2 (E2) (30). Check that the dial on the ohmmeter is at infinity.
1 Manually open the upper and lower blocker doors to the fully
_ deployed position. The dial on the ohmmeter (V16902) will move to zero.
2 Manually close the upper blocker door to the fully stowed
_ position. At the beginning of the blocker door movement, the dial on the ohmmeter (V16902) will move to infinity.
3 Manually open the upper blocker door to the fully deployed
_ position. The dial on the ohmmeter (V16902) will move to zero.
4 Manually close the lower blocker door to the fully stowed
_ position. At the beginning of the blocker door movement, the dial on the ohmmeter (V16902) will move to infinity.
5 Manually close the upper blocker door to the fully stowed
_
position.
(g) If the switch does not operate correctly, replace the switch (15) (Ref. TASK 78-31-17-000-001) and (Ref. TASK 78-31-17-400-001).
(h) If the switch operates correctly, connect the plug on the beam harness (25) on the receptacle (20) on the deploy switch (15).
(i) Install the deploy switch access door (5) on the blocker door with the three screws (10).
(j) TORQUE the screws (10) to between 35 and 44 lbf.in (0.39 and 0.49 m.daN).
5. Close-up
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Subtask 78-31-17-440-059
A. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
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Subtask 78-31-17-410-071
B. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Remove the access platform(s).
(3) Close the fan cowl doors (Ref. TASK 71-13-00-410-040):
FOR 1000EM1
437AL, 438AR
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