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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(o)  
Tighten the bolts (204) that attach the left diffuser-seal air vent-tube (203) and the bracket (206) to the diffuser case to 65-85 pound-inches (7.3-9.6 newton-meters). 1) Without loosening, tighten the bolts again until the

 necessary torque is kept.

 (p)  
Tighten the bolts (215, 220) that attach the left diffuser-seal air vent-tube (203) and the bracket (224) to the HPC rear case to 85-95 pound-inches (9.6-10.7 newton-meters). 1) Without loosening, tighten the bolts again until the

 necessary torque is kept.

 (q)  
Safety the bolts (204, 215 and 220) with lockwire or safety cable and safety cable ferrule.

 (r)  
Tighten the bolt (211) that attaches the clamp (210) of the left diffuser-seal air vent-tube (203) to the fuel injector bracket to 36-40 pound-inches (4.1-4.5 newton-meters).

 (s)  
Lubricate the threads of the bolts (205, 213 and 218) with engine oil.

 (t)  
Attach the clamp (207) of the vent tube for the No. 3 bearing (208) to the bracket (206) with the bolt (205) and nut (209). 1) Tighten the nut (209) to 36-40 pound-inches (4.1-4.5

 newton-meters).

 (u)  
Attach the clamp (217) of the PT4.95 tube to the bracket (224) with the bolt (218) and nut (216). 1) Tighten the nut (216) to 36-40 pound-inches (4.1-4.5

 newton-meters).

 (v)  
Attach the clamp (214) of the air shutoff valve signal-tube (226) to the bracket (224) with the bolt (213) and nut (225). 1) Tighten the nut (225) to 36-40 pound-inches (4.1-4.5

 newton-meters).
 H. Return the Aircraft to its Usual Condition
 S 864-293-N00
 (1)  
For the applicable engine, remove the DO-NOT-CLOSE tag and close
 this circuit breaker:

 (a)  
P6 Main Power Distribution Panel
 1) 6L10 FUEL CONT VALVE ENG 1
 2) 6L11 FUEL CONT VALVE ENG 2
 3) 6L12 FUEL CONT VALVE ENG 3
 4) 6L13 FUEL CONT VALVE ENG 4

 S 864-294-N00
 (2)  
For the applicable engine, remove the DO-NOT-CLOSE tags and close
 these circuit breakers:

 (a)  
P6 Main Power Distribution Panel
 1) 6F1 IGN 1 ENG 1
 2) 6F2 IGN 1 ENG 2

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 73-11-05
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
3) 6F3 IGN 1 ENG 3
 4) 6F4 IGN 1 ENG 4
 5) 6K19 IGN 2 ENG 1
 6) 6K20 IGN 2 ENG 2
 7) 6K21 IGN 2 ENG 3
 8) 6K22 IGN 2 ENG 4
 9) 6G19 STBY IGN ENG 1
 10) 6G20 STBY IGN ENG 2
 11) 6G21 STBY IGN ENG 3
 12) 6G22 STBY IGN ENG 4

 S 414-426-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (3)  
Close the left thrust reverser (AMM 78-31-00/201).

 S 414-427-N00

 (4)  
Close the left core cowl panel (AMM 71-11-06/201).

 S 414-428-N00

 (5)  
Close the left fan cowl panel (AMM 71-11-04/201).

 S 444-429-N00

 (6)  
Do the activation procedure for the thrust reverser (AMM 78-31-00/201).

 S 714-465-N00

 (7)  
Do the test of the fuel injector and support as shown in the Power Plant Test Reference Table (AMM 71-00-00/501).

 TASK 73-11-05-794-432-N00
 18. Fuel Manifolds Leak Check_________________________
 A. Special Tools and Equipment
 (1)  PWA 85579 - Adapter, Pratt & Whitney, Commercial Products Division, 400 Main Street, East Hartford, CT 06108
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú N01 Page 480V ú Oct 10/97
　
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