R exciter-A.
R (2) Disconnect the 4000JH2 harness connector from the lower ignition
R exciter-B.
(3) Make sure that the electrical connections are clean and in the correct condition.
R (4) Route the 4000JH2 as follows:
R (a) Connect the 4000JH2 harness connector to the upper ignition R exciter-A by hand. Use soft-nose or plastic jaw pliers only if R necessary.
R (5) Route the 4000JH1 harness as follows:
R (a) Connect the 4000JH1 harness connector to the lower ignition R exciter-B by hand. Use soft-nose or plastic jaw pliers only if R necessary.
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R Temporary Modification of the JH1 and JH2 Harnesses Routing and Connection
R Figure 401/TASK 74-31-00-991-300- 13 (SHEET 1)
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R Temporary Modification of the JH1 and JH2 Harnesses Routing and Connection
R Figure 401/TASK 74-31-00-991-300- 23 (SHEET 2)
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R Temporary Modification of the JH1 and JH2 Harnesses Routing and Connection
R Figure 401/TASK 74-31-00-991-300- 33 (SHEET 3)
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(6) Make sure that no contact of the harnesses with the ignition exciter can occur.
Subtask 74-31-00-865-060
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1JH FOR 1000EM1 2JH1, 3JH1 FOR 1000EM2 2JH2, 3JH2
Subtask 74-31-00-710-054
C. Do an operational test of the ignition system (Ref. TASK 74-00-00-710-043).
5. Close-up
________
Subtask 74-31-00-440-054
A. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
Subtask 74-31-00-410-052
B. Close Access
(1) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Remove the access platform(s).
(3) Remove the warning notice(s).
R Subtask 74-31-00-862-052
R C. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-R 002).
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