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 (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 77-21-10-010-075
 B. Get Access
 (1) Open the fan cowl doors: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
 Subtask 77-21-10-040-070
 C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
 Subtask 77-21-10-010-086
 D. Open the thrust reverser doors: (Ref. TASK 78-36-00-010-040)
 FOR 1000EM1
 451AL, 452AR
 FOR 1000EM2
 461AL, 462AR

 4. Procedure
_________
R (Ref. Fig. 404/TASK 77-21-10-991-306)
 Subtask 77-21-10-020-058
R A. Removal of the Upper Right Thermocouple Lead Assembly R
R (1) Cut and remove the lockwire.
R (2) Disconnect the upper extension lead connector (90) from the upper R right T495 sector junction box (parallel junction box) (20).
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R Upper Right Thermocouple Lead Assembly (Upper Right T495 Sector) R Figure 404/TASK 77-21-10-991-306- 13 (SHEET 1)
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R Upper Right Thermocouple Lead Assembly (Upper Right T495 Sector) R Figure 404/TASK 77-21-10-991-306- 23 (SHEET 2)
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R Upper Right Thermocouple Lead Assembly (Upper Right T495 Sector) R Figure 404/TASK 77-21-10-991-306- 33 (SHEET 3)
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R -------------------------------------------------------------------------------

R  REMOVE  | FROM 
R  | 
R  Nuts (10)  | Studs (30) 
R  | 
R  | 
R  | 
R  Bolts (60)  | Bracket (40) 
R  | 
R  | 
R  Clamp (50)  | 
R  Nuts (80)  | Flange S 
R  Bolts (70)  | 
R  Nut (100)  | Bracket (140) 
R  | 
R  | 
R  Bolt (130)  | 
R  Clamps (110)| 
R  and (120)  | 
R  Bolt (170)  | Bracket (150) 
R  | 
R  Clamp (160) | 
R 

| NOTE | | On LPT case, between the 12 o'clock | and the 3 o'clock positions | (Detail B) (3 locations). | | On flange S, at the 11:45 o'clock position | (Detail C) | | | At the 12:45 o'clock position (Detail D) | | On flange S, at the 1:30 o'clock position | (Detail E) | | | | | On flange S, at the 2:15 o'clock position | (Detail F) |
R (3) Carefully remove the upper right thermocouple lead assembly (upper R right T495 sector) (20) from the LPT holes and from the engine.
R (4) Install the blanking plugs and caps on all disconnected parts.
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 TASK 77-21-10-400-026
 Installation of the Upper Right Thermocouple Lead Assembly
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R No specific blanking plugs
R  No specific caps 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 -------------------------------------------------------------------------------
Material No. CP2101 USA MIL-T-5544
 graphite grease (Ref. 70-30-00) R Material No. CP2544 * R Molykote P37 (Ref. 70-30-00)
 Material No. CP8001 *
 lockwire 0.032 in (0.8 mm) dia (Ref. 70-30-00)
 Material No. CP8002 *
　
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