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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
NO. 3 BEARING12.
OIL PRESSURE
MANIFOLD
SEE D
SEE C
SEE B
FWD
3. BRACKET ON FLANGE OF A L-A8244 (0000)
COOLING AIR TUBE
4. SPRAY SHIELD
13. NUT 5. BOLT
6. ADAPTER 9. NO. 3 BEARING
7. PACKING OIL PRESSURE
TUBE (REAR)
8. STRAINER
2. CLAMP
1. BOLT
BOLT5. NUT10.
12. NO. 3 BEARING OIL
PRESSURE MANIFOLD FWD BOLT11.
(FRONT)
B 1
NUT10.
1 ENGINES WITH PW SB 79-52 L-A8245 (0000)
No. 3 Bearing Oil Pressure Strainer
Figure 402 (Sheet 1)
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C22182
L-A8246 (0000)
No. 3 Bearing Oil Pressure Strainer Figure 402 (Sheet 2)
C22208
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
DO NOT LUBRICATE THIS AREA
LUBRICATED FERRULE EXAMPLE
Last Chance Oil Strainer Lubrication
Figure 403
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C22167
S 014-080-N00
(3)
Open the left fan cowl panel (AMM 71-11-04/201).
S 014-090-N00
(4)
Open the left core cowl panel (AMM 71-11-06/201).
S 014-081-N00
WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(5)
Open the left thrust reverser (AMM 78-31-00/201).
E.
Remove the No. 3 Bearing Oil Pressure Strainer
S 034-082-N00
(1) Do the steps that follow to remove the No. 3 Bearing oil pressure strainer.
(a) Remove the bolt (1) from the clamp (2) that attaches the No. 3 bearing oil pressure manifold (12) and spray sheild (4) to a bracket (3).
NOTE: These parts are on the high compressor at approximately
____
the 9 o'clock position.
1) Remove the bolt (1), clamp (2), and spray shield (4).
(b)
Remove the lockwire.
(c)
Disconnect the manifold nut (13) from the adapter (6) in the No. 3 bearing oil pressure tube. 1) Put the container below the adapter (6) to collect the
remaining oil.
(d)
Remove the bolts (11) that attach the ferrul end of the tube
(9) to a bracket on Flange K.
(e)
Remove the lockwire from the bolts (5) that attach the adapter
(6) to a strainer into the ferrul end of the tube (9). 1) Remove the bolts (5) and nuts (10) from the adapter (6).
(f)
Remove a nut (15) and bolt (17) that attach clamps (14) together on the oil pressure trim tube (16) and the No. 3 bearing oil pressure manifold (12).
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