(6)
IPC 79-32-01 Fig. 1
(7)
WDM 79-32-11
(8)
WDM 79-32-12
(9)
SSM 79-00-01
D.
Access
(1)
Location Zone
412 Engine 1 - Fwd HPC Case 10:00 o'clock
422 Engine 2 - Fwd HPC Case 10:00 o'clock
432 Engine 3 - Fwd HPC Case 10:00 o'clock
442 Engine 4 - Fwd HPC Case 10:00 o'clock
(2)
Access Panel
415 Left Thrust Reverser Half - Engine 1
425 Left Thrust Reverser Half - Engine 2
435 Left Thrust Reverser Half - Engine 3
445 Left Thrust Reverser Half - Engine 4
E.
Procedure
(1)
Remove the protection caps.
S 424-011-N00
(2)
Put the oil pressure transmitter to the bracket with the electrical connector receptacle in the direction shown in Section B-B.
(a)
Tighten the locknut.
(b)
Install the lockwire to the locknut.
S 434-010-N00
S 644-023-N00
(3)
Lubricate the O-ring for the elbow of the oil pressure tube with engine oil.
(4)
Install the O-ring to the elbow of the oil pressure tube.
S 434-012-N00
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S 434-024-N00
(5) Connect the oil pressure tube to the oil pressure transmitter.
(a) Tighten the tube nut.
S 644-025-N00
(6)
Lubricate the O-rings for the vent tube elbow with engine oil.
S 434-013-N00
(7)
Install the O-rings to the vent tube elbow.
S 434-029-N00
(8)
Connect the vent tube elbow to the oil pressure transmitter and the
vent tube tee.
(a) Tighten the coupling nuts for the elbows.
S 434-014-N00
(9)
Connect the electrical connector (DT679) to the oil pressure
transmitter.
S 764-015-N00
(10)
Examine the bonding resistance between the oil pressure transmitter
and bracket (AMM 20-22-01/601).
(a) Make sure the bonding resistance is not more than 0.01 ohms.
F.
Put the Airplane Back to Its Usual Condition.
S 414-032-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.
(1)
Close the left thrust reverser (AMM 78-31-00/201).
S 414-026-N00
(2)
Close the left core cowl panel (AMM 71-11-06/201).
(3)
Close the left fan cowl panel (AMM 71-11-04/201).
S 444-028-N00
(4)
Do the activation procedure for the thrust reverser
(AMM 78-31-00/201).
S 864-017-N00
(5)
For the applicable engine, close this circuit breaker and remove the DO-NOT-CLOSE tag:
S 414-027-N00
(a) P6 Main Power Distribution Panel
1) 6D1 OIL PRESS ENG 1
2) 6D2 OIL PRESS ENG 2
3) 6D3 OIL PRESS ENG 3
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
4) 6D4 OIL PRESS ENG 4
(6) S 714-018-N00Do the operational test for the oil pressure indicating system (AMM 79-32-00/501).
(7) S 794-019-N00Examine the tube connections on the warning switch for signs of oil leakage after the engine shutdown.
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