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 Cleaning of the Ignition Exciter (4000JH1, 4000JH2)
 WARNING : BE SURE EXCITERS ARE DE-ENERGIZED FOR AT LEAST 5 MINUTES BEFORE
_______ WORKING ON THE IGNITION SYSTEM. VOLTAGE OUTPUT CAN BE DANGEROUS. DO NOT TOUCH THE ELECTRICAL CONTACTS, EXCITERS MAY CONTAIN AN ELECTRICAL CHARGE EVEN WHEN THEY ARE NOT ENERGIZED.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
 No specific clean cloth
 No specific soft bristle brush
 No specific soft-nose pliers
 No specific warning notice
 No specific Torque Wrench : range 36.00 to 220.00 lbf.in

 (0.40 to 2.60 m.daN)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R Material No. CP1039 * R acetone (Ref. 70-30-00) Material No. CP2011 *
 stoddard solvent (Ref. 70-30-00) R Material No. CP2559 * R ardrox 552 (Ref. 70-30-00) R Material No. CP2560 * R turco ind 79 (Ref. 70-30-00) R Material No. CP2566 * R mag-chem teksol (Ref. 70-30-00)
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 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R R R R  Material No. Material No.  CP2584 CP2656  * degreasol 99 R (Ref. 70-30-00) * mag-chem skysol (Ref. 70-30-00)
 C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 71-13-00-410-040 74-00-00-710-043 74-00-00-710-043  Opening of the Fan Cowl DoorsClosing of the Fan Cowl DoorsOperational Test of the Ignition SystemOperational Test of the Ignition System without CFDS
 3. Job Set-up__________
 Subtask 74-11-10-941-055
 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).

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 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 74-11-10-010-056
 C. Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
 FOR 1000EM1
 437AL, 438AR
 FOR 1000EM2
 447AL, 448AR

 Subtask 74-11-10-020-052
 D. Disconnect the Power Supply and the Ignition Lead.
 (1) Disconnect the power supply cable from the electrical input connector on the forward side of the exciter.

 (2) Disconnect the ignition lead from the ignition lead connector on the aft side of the exciter.

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 4. Procedure
_________
 Subtask 74-11-10-140-051
 A. Clean the Electrical Connector.
 WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
　
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