(a) Make sure the clearance is in the limits that are given in the table below:
~............................................................. | | | NEW PART REFERENCE | CLEARANCE | | | | DIMENSIONS | LIMITS | | PART | | INCHES | INCHES | | NAME | DIA | (MM) | (MM) | | | ............................................... | | | MIN | MAX | MIN | MAX | ............................................................... | PUMP | OD | 3.482 | 3.484 | | | | | | (88.443) | (88.493) | 0.0025 | 0.0055 | ......................................... (0.064) | (0.139) | | GEARBOX | ID | 3.4865 | 3.4875 | | | | HOUSING | | (88.558) | (88.582) | | | 2.........….....…...........…...........…..........…..........1
F. Install the Lubrication and Scavenge Oil Pump.
S 434-015-N00
(1)
Remove the protection caps.
(2)
Lubricate the packings (3, 5, 6, 8, 9, and 15) with engine oil.
S 434-047-N00
(3)
Install the packings (3, 5, 6, 8, 9, and 15) in the grooves of the
ferrules on the tubes that follow:
S 644-038-N00
(a) ENGINES WITHOUT PW SB 79-75;
Supply tube (14) for the main oil filter (Fig. 401)
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(b)
ENGINES WITH PW SB 79-75;
Packing (3) to the tube (1) and dampener (5) or adapter (15)
(Fig. 402).
(c)
Scavenge oil tube (1) for the No. 3 bearing
(d)
Scavenge oil tube (11) for the No. 4 bearing
(e)
Scavenge oil tube (3) for the angle gearbox
(f)
Scavenge oil tube (4) for the main bearing
S 644-039-N00
(4)
Lubricate the packings (16, 19) with engine oil.
S 434-017-N00
(5)
Install the packings (16, 19) in the grooves of the transfer tubes (17, 18).
S 434-040-N00
(6)
Install the transfer tubes (17, 18) in the forward ports of the lubrication and scavenge oil pump (7).
S 644-041-N00
(7)
Lubricate the packings (20) with engine oil.
S 434-018-N00
(8)
Install the packings (20) to the grooves of the lubrication and scavenge oil pump (7).
S 424-019-N00
(9)
Put the lubrication and scavenge oil pump (7) to the main gearbox.
(a)
Make sure to align the transfer tubes (17, 18) with the
applicable ports.
S 644-042-N00
(10)
Lubricate the threads of the bolts (22) with the antigalling compound.
S 434-020-N00
(11)
Attach the lubrication and scavenge oil pump (7) with the washers (21) and bolts (22).
(a)
Tighten the bolts (22) to 125-140 pound-inches
(14.1-15.8 newton-meters).
S 434-021-N00
(12)
ENGINES WITHOUT PW SB 79-75; Attach the supply tube (14) for the main oil filter with the steps that follow:
(a)
Lubricate the threads of the bolts (12) with engine oil.
(b)
Install the supply tube (14) and the bracket (13) to the aft top port on the lubrication and scavenge oil pump (7) with the bolts (12).
(c)
Tighten the bolts (12) to 62-72 pound-inches
(7.0-8.1 newton-meters).
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(d) Tighten the bolts for the clamp, which were loosened, on the supply tube (14) to 36-40 pound-inches (4.1-4.5 newton-meters).
S 434-071-N00
(13) ENGINES WITH PW SB 79-75; Attach the dampener (5) or adapter (15) and tube (1) with the steps that follow (Fig. 402):
(a)
Install the dampener (5) or adapter (15) to the top of the
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