(a)
The maximum airflow leakage for the No. 1, 1.5, 2, 3 and angle gearbox bearing compartments is 44 pounds/hour.
(b)
The maximum airflow leakage for the No. 4 bearing compartment is 10 pounds/hour.
B.
Special Tools and Equipment
(1)
PWA 85498 - Adapter, Pratt & Whitney
(2)
PWA 85843 - Adapter, Pratt & Whitney
(3)
PWA 85863 - Adapter, Pratt & Whitney
(4)
PWA 85978 - Plug, Pratt & Whitney
(5)
CTE6075 Vacuum Cart
(6)
M303, M305, or M307 Bergen Mechanical Crimper
Bergen Cable Technologies Inc
170 Gregg St
P.O. Box 1300
Lodi, NJ 07644-9982
C.
Consumable Materials
(1)
A00637 Compound - Antigalling, Hi-t 650,
optional to A00664
(2)
A00664 Compound - Antigalling, Lubribont HT,
optional to A00637
(3)
D00390 Oil - Engine
(4)
G02332 Ferrule, Safety Cable (P05-292)
(5)
G02334 Lockwire, (P05-289) 0.032 inch (0.813 mm) - AS3214-02
(6)
G02335 Cable, Safety (P05-291)
(7)
G00964 Compound - Antigalling, Fel-Pro C-200
D.
References
(1)
AMM 71-11-04/201, Fan Cowl Panels
(2)
AMM 71-11-06/201, Core Cowl Panels
(3)
AMM 78-31-00/201, Thrust Reverser System
E.
Access
(1)
Location Zones
412 Engine 1
422 Engine 2
432 Engine 3
442 Engine 4
(2)
Access Panels
415 and 416 Thrust Reverser Halves - Engine 1
425 and 426 Thrust Reverser Halves - Engine 2
435 and 436 Thrust Reverser Halves - Engine 3
445 and 446 Thrust Reverser Halves - Engine 4
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71-00-00
ALL ú ú N03 Page 580I ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
TEST NO. 12 - ENGINE VACUUM TEST
________________________________
F. Procedure
S 015-192-N00
(1) Open the fan cowl panels (AMM 71-11-04/201).
S 045-194-N00
WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).
S 015-193-N00
(3)
Open the core cowl panels (AMM 71-11-06/201).
S 015-195-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(4)
Open the thrust reversers (AMM 78-31-00/201).
S 035-212-N00
(5)
Remove the oil pressure tube (LP34) for the No. 4 bearing:
(a)
Remove the two hose clamps which hold the top spray shield at the rear tube connection on the exhaust case at the 10:30 o'clock position (Fig. 510, View B). 1) Remove the spray shield from the engine.
(b)
Remove the two bolts and nuts from the rear tube connection.
(c)
Disconnect the tube elbow on the oil pressure tube from the internal tube nut on the exhaust case at the 10:30 o'clock position (Fig. 510, View A).
(d)
Remove the oil pressure tube (LP34) from the engine.
(e)
Remove the last chance strainer element from the oil pressure tube (LP34) (Fig. 510, View B).
(f)
Install the protection covers on the openings on the oil pressure tube.
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