6.  TUBE NUT 5. FUEL/OIL COOLER 4. FLANGE BYPASS VALVE
6.  TUBE NUTSEE D FWD OIL RETURN TUBE
10. BOLT
L-A2913
(2 LOCATIONS) NOTE THE QEC EQUIPMENT IS NOT SHOWN TO MAKE THE VIEW CLEAR.
D
VIEW IN THE UP DIRECTION C B
Engine Fuel/Oil Cooler Bypass Valve Solenoid Figure 401 (Sheet 1)
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(3)  S 034-004-N00Disconnect the electrical connectors (1, 2) from the solenoid (3). (a) Install the protection caps.
 (4)  S 494-005-N00Install the container to catch the remaining oil.
 (5)  S 034-006-N00Disconnect the tube nut (6) which attaches the oil return tube (5) to the bypass valve. (a) Remove the retainer (8). 

COOLER FUEL/OIL  (4 PLACES) WASHER11.  BOLT (4 PLACES) 12. 
3.  SOLENOID (V358) BYPASS VALVE FUEL/OIL COOLER 
FWD  BYPASS VALVE FUEL/OIL COOLER ENGINE  1. CHANNEL A (W3P5) CONNECTOR -EEC ELECTRICAL 13. PACKING  CHANNEL B (W5P5) 2. EEC ELECTRICAL CONNECTOR -
E 
Figure 401 (Sheet 2) Engine Fuel/Oil Cooler Bypass Valve Solenoid 

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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(b)  Discard the packing (9).
 S 034-007-N00
 (6)  
Remove the two bolts (10) which attach the flange (4) on the other end of the oil return tube (5) to the main oil filter.

 S 034-023-N00

 (7)  
Remove the oil return tube (5) from the engine.

 (a)  
Discard the packing (7).

 S 034-008-N00
 (8)  
Remove the bolts (12) and washers (11) which attach the solenoid (3) to the bypass valve.

 S 024-009-N00

 (9)  
Remove the solenoid (3).

 (a)  
Discard the packings (13).

 S 034-010-N00
 (10) Install the protection caps.
 TASK 79-21-03-404-011-N00
 3. Install the Engine Fuel/Oil Cooler Bypass Valve Solenoid (Fig. 401)
________________________________________________________
 A. Equipment
 (1)  M303, M305, or M307 Bergen Mechanical Crimper
 Bergen Cable Technologies Inc
 170 Gregg St

 P.O.
 Box 1300
 Lodi, NJ 07644-9982

 B.
Consumable Materials

 (1)  
D00390 Oil - Engine

 (2)  
G02332 Ferrule, Safety Cable (P05-292)

 (3)  
G02334 Lockwire, (P05-289) 0.032 inch (0.813 mm) - AS3214-02

 (4)  
G02335 Cable, Safety (P05-291)

 C.
Parts

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~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 3 | Engine Fuel/Oil Cooler Bypass | 79-21-02 | 20 | 120 | | | | Valve Solenoid | | | | | | 5 | Oil Return Tube | 79-21-51 | 05 | 150 | | | 7 | Packing | | | 90 | | | 8 | Retainer | | | 100 | | | 9 | Packing | | | 95 | | | 10 | Bolt | | | 30 | | | 11 | Washer | 79-21-02 | 20 | 122 | | | 12 | Bolt | | | 121 | | | 13 | Packing | | | 123 | 2......…........…...................................…..........…......…........1
　
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