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122VU ELEC/GCU/2 2XU2 T27
4. Procedure
_________
(Ref. Fig. 408/TASK 71-51-43-991-313, 409/TASK 71-51-43-991-314)
Subtask 71-51-43-420-057
A. Installation of the ECU (Channel B) Harness NOTE : For the recommended procedure for the installation of the wire
____
harness (Ref. TASK 70-60-00-910-041).
NOTE : To tighten the flip-lock clamps and line blocks, turn the captive
____ screws or captive bolts 1/4 turn clockwise to engage the cam nuts.
(1) Remove the protective covers from the electrical connectors.
(2) Put the electrical harness (5) in position on the engine.
(3) Connect the electrical connectors 403VC-A and 407VC-A to the pylon junction box. (Ref. Fig. 408/TASK 71-51-43-991-313)
(4) Connect the electrical connector 4003VC-A to the junction box.
(5) Put the harness (5) into the flip-lock clamps (10) and (15).
(6) Put the harness (5) into the rubber supports of the line blocks. R R BEFORE SPIB NO. CFM02255MW1 R
(7) If removed, put the rubber supports in the line blocks (20) and (25) attached to the brackets at station 167.
(8) If removed, put the rubber supports in the line block (30) attached to the bracket at station 174.
(9) If removed, put the rubber supports in the line block (35) attached to the brackets at stations 176, 185 and 191.
(10) Make sure that the harness (5) is correctly installed on the engine.
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(11) Close the line blocks (20), (25), (30) and (35) and tighten the captive bolts.
(12) Tighten the captive screws on the flip-lock clamps (10) and (15).
(13) Put the clamps (50) on the harness (5). Attach the clamps to the brackets at station 199 with the bolts (40) and the nuts (45).
(14) TORQUE the nuts (45) to between 20 and 25 lbf.in (0.22 and 0.28 m.daN).
(15) Put the harness (5) into the rubber supports of the line blocks (25) and (65). (Ref. Fig. 409/TASK 71-51-43-991-314)
(16) Put the harness (5) into the rubber supports of the line blocks (25) and (65).
(17) If removed, put the rubber supports in the line blocks (25) and (65) attached to the brackets at station 167.
(18) Make sure that the harness (5) is correctly installed on the engine.
(19) Close the line blocks (25) and (65) and tighten the captive bolts. CONFIG-1
(20) Put the harness (5) into the flip-lock clamp (55) near the ignition exciters and tighten the captive bolt.
CONFIG-2
(21) Put the harness (5) into the flip-lock clamp (60) near the ignition exciters and tighten the captive bolt.
END CONFIG-2
(22) Connect the electrical connector 4000JH2-A to the ignition exciter B.
(23) Connect the electrical connectors 4000KS-J2 and 4000KS-J4 to the ECU. NOTE : The wire harnesses for connectors 4000KS-J4 and 4000KS-J6 may
____
touch as shown on
(Ref. Fig. 409/TASK 71-51-43-991-314)
(Detail B)
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(24) Put the harness (5) into the two flip-lock clamps (60) that are attached to the brackets at station 191.
(25) Put the harness (5) into the flip-lock clamp (80) that is attached to the bracket at station 191.
(26) Put the harness (5) into the two flip-lock clamps (55) that are
attached to the brackets at station 191. R R AFTER SPIB NO. CFM02255MW1 R (Ref. Fig. 408/TASK 71-51-43-991-313) R
R (27) Make sure that the harness (5) is correctly installed on the engine.
R (28) Install the clamps and bolts (22) that attach the harness (5) to the R brackets at station 167.
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