4000JH2)
74-11-10-991-301 Fig. 601
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Subtask 74-11-10-941-054
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 74-11-10-865-060
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU ENGINE/1 AND 2/IGN/SYS A 1JH A03
FOR 1000EM1 121VU ENGINE/IGN/ENG1/SYS B 3JH1 P41 121VU ENGINE/IGN/ENG1/SYS A BAT 2JH1 P39
FOR 1000EM2 121VU ENGINE/IGN/ENG2/SYS B 3JH2 P42 121VU ENGINE/IGN/ENG2/SYS A BAT 2JH2 P40
Subtask 74-11-10-010-055
C. Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
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(Ref. Fig. 601/TASK 74-11-10-991-301) Subtask 74-11-10-210-051
A. Do a Visual Inspection of the Ignition Exciter.
-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
1. All areas for :
- Cracks
- Nicks, dents and scratches.
2. Electrical connectors for :
- Thread damage.
- Pin damage.
- Dirt inside connector well.
Not serviceable.
Any number 0.030 in.
(0.76 mm) deep.
30 percent damage on one lead-in or 20 percent damage of 2 lead-in threads.
Must mate freely with respective leads.
Not serviceable.
Replace ignition exciter (Ref. TASK 74-11-10-000-002) and (Ref. TASK 74-11-10-400-002).
Replace ignition exciter(Ref. TASK 74-11-10-000-002) and (Ref. TASK 74-11-10-400-002).
Replace ignition exciter(Ref. TASK 74-11-10-000-002) and (Ref. TASK 74-11-10-400-002).
Replace ignition exciterif pins are broken, eroded or seized (Ref. TASK 74-11-10-000-002) and (Ref. TASK 74-11-10-400-002)
Clean connector well(Ref. TASK 74-11-10-100-002).
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Ignition Exciters
Figure 601/TASK 74-11-10-991-301
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Subtask 74-11-10-865-061
A. 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 74-11-10-410-054
B. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(3) Remove the warning notice(s).
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IGNITION EXCITER (4000JH1,4000JH2) - CLEANING/PAINTING
______________________________________________________
TASK 74-11-10-100-002
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