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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(3) S 022-006-N00Remove the tube assembly for the main oil filter (Fig. 201): (a) Remove the bolts that hold the forward end of the tube to the main oil filter. (b) Remove the bolts that hold the rear end of the tube to the top of the oil pump. (c) Remove the bolts, nuts, and clamps that hold the tube to the two gearbox brackets. (d) Remove the bolts, nuts, and clamps that hold the tube to the diffuser case bracket. (e) Remove the bolts, nuts, and clamps that hold the tube to the oil scavenge tube for No. 4 bearing. (f) Remove the tube assembly. (g) Discard the packings. (h) Install the caps on the tube and the two end connections.
(4) S 492-007-N00Use the bolts to install a PWA 85525 Adapter to the flange on the housing for the main oil filter.
NOTE:____ Make sure that the packing is installed on the PWA 85525 adapter before you install the PWA 85525 adapter.
(5) S 492-008-N00Use the bolts to install a PWA 85526 adapter on the top rear flange of the oil pump.
NOTE:____ Make sure that the packing is installed on the PWA 85526 adapter before you install the PWA 85526 adapter.
(6) S 612-009-N00Do this task: "Engine - Servicing (Oil Change)" (AMM 12-22-03/301).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
OIL TUBE FOR THE
SEE A SEE BMAIN FILTER
FWD SEE C
FOR THE OIL TUBE MAIN FILTER BOLT NUT
BRACKET GEARBOX
BRACKET GEARBOX CLAMP FWD NUT CLAMP MAIN FILTER FOR THE OIL TUBE BOLT
BRACKET DIFFUSER CASE A BOLT BOLT NUT B FWD
NUT MAIN FILTER FOR THE OIL TUBE
(EXAMPLE) CLAMP
FWD
NUT C NO. 4 BEARING FOR THE TUBE (FRONT) OIL SCAVENGE BOLT
Figure 201 Engine Bearing Compartment Drying
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S 882-010-N00
(7) Stop the heat cycle on the cart:
WARNING: REMOVE THE ELECTRICAL POWER BEFORE YOU CONNECT OR
_______ DISCONNECT THE ELECTRICAL CONNECTIONS TO THE CART. REMOVE THE ELECTRICAL POWER BEFORE YOU OPEN THE CONTROL CABINET. INJURY TO PERSONS CAN OCCUR IF YOU DO NOT REMOVE ELECTRICAL POWER.
(a)
Disconnect the electrical connections.
(b)
Move the cart to the servicing area.
F. Procedure
S 492-011-N00
(1) Connect the inlet and outlet hoses:
(a)
Connect the outlet hose from the cart to the adapter on the housing for the main oil filter.
(b)
Connect the inlet hose from the cart to the adapter on the top rear side of the oil pump.
S 862-012-N00
(2)
Close the outlet valve on the reservoir.
S 862-013-N00
(3)
Open the inlet and the outlet valve to the reservoir.
S 862-021-N00
CAUTION: FILL THE RESERVOIR, OPEN THE INLET VALVE, AND CLOSE THE OUTLET
_______ VALVE BEFORE YOU MOTOR THE ENGINE. THE BEARINGS CAN BE DAMAGED IF YOU DO NOT PREPARE THE CART.
(4) Do this task to dry motor the engine for a minimum of three minutes: "Power Plant Operation (Engine Motoring)" (AMM 71-00-00/201).
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