(2)  
Access Panel
 416 Right Thrust Reverser Half - Engine 1
 426 Right Thrust Reverser Half - Engine 2
 436 Right Thrust Reverser Half - Engine 3
 446 Right Thrust Reverser Half - Engine 4

 C.  Procedure
 S 024-031-N00
 (1) Remove the ignition exciter M7196 and M7197 (2) from the engine.
 (a)  Remove the exciter-to-igniter plug cable (1) for the applicable ignition exciter (AMM 74-21-01/401).
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
3. EXCITER-TO-IGNITER (UPPER) PLUG CABLE  SEE C 8. IGNITION EXCITER (UPPER) 
SEE  B 
SEE  A 
13. MOUNT BRACKET 
3. EXCITER-TO-IGNITER (LOWER) PLUG CABLE  A  FWD  SEE D 8. IGNITION (LOWER) EXCITER 
3. EXCITER-TO-IGNITER (UPPER) PLUG CABLE 
13. MOUNT BRACKET 
UPPER IGNITER PLUG 
LOWER IGNITER PLUG 
3. EXCITER-TO-IGNITER HYDRAULIC PUMP (REF) PLUG CABLE (LOWER)  B  FWD 

Ignition Exciter Installation
Figure 401 (Sheet 1)

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1. EXCITER-TO-IGNITER PLUG CABLE
3.  HEAT SHIELD 
COOLING  2. IGNITION 
AIR HOSE  EXCITER  4.  BOLT 
4. BOLT  M7196 (UPPER),  (2 LOCATIONS) 

5.  WASHER
9.  ELECTRICAL (3 LOCATIONS)CONNECTOR
7. SEAL  6. NUT (3 LOCATIONS)
DM7196
5.  WASHER
8.  HEAT SHIELD
(3 LOCATIONS)
MOUNTING BRACKET  MOUNTING BRACKET
6.  NUT (3 LOCATIONS)
UPPER IGNITION EXCITER
C
7. SEAL
8.  HEAT SHIELD
10. ELECTRICAL
CONNECTOR 3. HEAT DM7197 SHIELD
2.  IGNITION EXCITER (LOWER), M7197
4.  BOLT (2 LOCATIONS)
4.  BOLT
1. EXCITER-TO-IGNITER PLUG CABLE
COOLING AIR
HOSE

LOWER IGNITION EXCITER
D

Ignition Exciter Installation Figure 401 (Sheet 2)
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(b)  
Disconnect the electrical connector (9 or 10) for low voltage input from the ignition exciter (2) which you will remove. 1) Disconnect the electrical connector DM7196 (9) from the

 upper ignition exciter (2). 2) Disconnect the electrical connector DM7197 (10) for the lower ignition exciter (2). 3) Install a cap on the disconnected electrical connector (9 or 10).

 (c)  
Remove the three bolts (4), washers (5), and nuts (6) that hold the ignition exciter (2) and heat shields (3 and 8) on the mounting bracket.

 (d)  
Remove the ignition exciter M7196 (2) and the heat shields (3 and 8) from the engine.

 (e)  
Remove the ignition exciter M7197 (2) from the heat shields (3 and 8).

 (f)  
Remove the seal (7) from the electrical connection on the ignition exciter (2). 1) Discard the seal (7).

 (g)  
Put a cap on the ignition exciter (2) connections.

 TASK 74-11-01-404-014-N00
 3. Ignition Exciter Installation (Fig. 401)
_____________________________
 A. Consumable Materials
 (1)  D00390 Oil - Engine
 B. Parts
 ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 2 | Ignition Exciter | 74-11-01 | 05 | 40 | | | 7 | Seal | | | 18 | 2.....….........…...................................…..........…......…........1
　
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