(b)  
Attach the tube (1) to the dampener (5) or adapter (15) with bolts (2), threads lubricated with engine oil, handtight only.

 (c)  
Install the loop clamp bracket (6/16) to the dampener (5) or
 adapter (15).
 1) Attach loop clamp bracket (6/16) to dampener (5) or

 adapter (15) with bolts (7) and nuts (8).
 2)  Tighten the bolts (7) which attach the loop clamp bracket (6/16) to the dampener (5) or adapter (15) to 32-36 pound-inches (3.6-4.1 newton-meters).
 (d)  
Install bolts (7), threads lubricated with engine oil, nuts (8) and clamp (10) which attaches the tube (1) to bracket (9) at forward face of gearbox, handtight only.

 (e)  
Install bolts (7), threads lubricated with engine oil, nuts (8) and clamp (11) which attaches the tube (1) to bracket (12) at rear face of gearbox, handtight only.

 (f)  
Install bolts (14), threads lubricated with engine oil, on the tube (1) which attaches to the diffuser case bracket (13).

 (g)  
Tighten the bolts (7) which attach the clamps (10,11) to
 gearbox brackets (9,12) to 32-36 pound-inches (3.6-4.1
 newton-meters).

 (h)  
Tighten the bolts (4) which attach the dampener (5) or
 adapter (15) to the top of the main oil pump to 62-72
 pound-inches (7.0-8.1 newton-meters).

 (i)  
Tighten the bolts (2) which attach the tube (1) to the
 dampener (5) or adapter (15) to 62-72 pound-inches (7.0-8.1
 newton-meters).

 (j)  
Tighten the bolts (14) which attach the tube (1) to the
 diffuser case bracket (13) to 65-75 pound-inches (7.3-8.5
 newton-meters).

 S 434-060-N00
 (14)
 ENGINES WITH PW SB 79-58; install the strainer element into the No. 1, 1.5, and 2 bearing oil scavenge tube assembly (4).

 S 434-022-N00

 (15)
 Install the scavenge oil tubes (1, 3, 4, and 11) with the steps that follow:

 (a)  Lubricate the threads of the bolts (2) with engine oil.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 79-21-04
 ALL  ú ú N02 Page 417 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(b)  
Start at the aft right of the lubrication and scavenge oil pump (7) and attach the four scavenge tubes with the bolts (2) with the steps that follow: 1) Scavenge oil tube (1) for the No. 3 bearing 2) Scavenge oil tube (11) for the No. 4 bearing 3) Scavenge oil tube (3) for the angle gearbox 4) Scavenge oil tube (4) for the No. 1, 1.5, and 2 bearing.

 (c)  
Tighten the bolts (2) to 62-72 pound-inches
 (7.0-8.1 newton-meters).

 S 094-031-N00
 (16)
 Remove the protection caps from the oil temperature probe.

 S 434-029-N00

 (17)
 Connect the lugs on the EEC wire harness to the studs on the oil
 temperature probe for the No. 3 bearing.

 (a)  
Tighten the nut on the alumel (larger) connection to
 18-22 pound-inches (2.0-2.5 newton-meters).

 (b)  
Tighten the nut on the chromel (smaller) connection to 15-18 pound-inches (1.7-2.0 newton-meters).

 G.
Put the Airplane Back to Its Usual Condition

 S 434-061-N00
 (1)  Install the magnetic chip detector probe and housing assemblies in
 the oil tank and the main gear box (AMM 79-21-10/401).

 S 414-059-N00
 WARNING: OBEY THE INSTRUCTIONS IN 78-31-00 WHEN YOU CLOSE THE THRUST
_______
 REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO
 PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.

 (2)  
Close the thrust reversers (AMM 78-31-00/201).

 S 414-056-N00

 (3)  
Close the core cowl panels (AMM 71-11-06/201).

 (4)  
Close the fan cowl panels (AMM 71-11-04/201).

 S 444-058-N00

 (5)  
Do the activation procedure for the thrust reversers
 (AMM 78-31-00/201).

 S 864-048-N00
　
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