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747-400
MAINTENANCE MANUAL

APU FUEL SHUTOFF VALVE BODY SEE A
BOLT1. 
(4 LOCATIONS)  OUTLET4. 
WASHER2.  TUBE 
(4 LOCATIONS)  PACKING5. 
3. SEAL  RETAINER HALVES6. 
O-RING5. 
RETAINING RING7. 
COUPLING8. 

9. VALVE BODY
REAR SPAR
10.
COUPLING NUT

11.
RETAINING RING

5. O-RING
12. INLET
11. RETAINING RING TEE
FWD
APU FUEL SHUTOFF VALVE BODY AAPU Fuel Shutoff Valve Body Installation Figure 401
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747-400 MAINTENANCE MANUAL
 S 034-024
 (5)  
Disassemble the retainer halves (6).

 S 034-025

 (6)  
Remove the retaining ring (7) that holds the coupling on the valve body (9).

 S 034-027

 (7)  
Remove the coupling (8) from the valve body (9).

 S 034-026

 (8)  
Discard the packings (5).

 S 034-006

 (9)  
Disconnect the coupling nut (10) from the inlet tee (12).

 S 034-028

 (10)
 Remove the retaining rings (11) that holds the coupling nut (10) and the packing (5) on the valve body (9).

 S 034-029

 (11)
 Remove the coupling nut (10) from the valve body (9).

 S 034-030

 (12)
 Discard the packing (5).

 S 034-007

 (13)
 Hold the valve body (9) in the tank.

 S 034-031

 (14)
 From out of the tank, remove the mounting bolts (1) and the washers

 (2)
 which attach the valve body (9) to the rear spar.

 (15)
 Remove the valve body (9) from the tank.

 (16)
 Discard the gasket seal (3).

 S 024-008
 S 034-032
 TASK 28-25-10-404-009
 3.  APU Fuel Shutoff Valve Body Installation (Fig. 401)________________________________________
 A. Consumable Materials
 (1)  D00128 Petrolatum - Technical, VV-P-236
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747-400 MAINTENANCE MANUAL
 B. Parts
 ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Bolt *[1] | | | | | | 2 | Washer | | | | | | 3 | Gasket Seal | 28-25-01 | 02 | 45 | | | 5 | Packing | 28-25-04 | 01 | 130 | | | 6 | Retainer Halves | | | 121 | | | 7 | Retaining Ring | | | 120 | | | 8 | Coupling *[1] | | | | | | 9 | Valve Body | 28-25-01 | 02 | 50 | | | 10 | Coupling Nut | 28-25-04 | 01 | 126 | | | 11 | Retaining Ring | | | 130 | 2......…........…...................................…..........….....….........1
 *[1] TO BE FURNISHED
 C. References
 (1)  
AMM 28-11-00/201, Fuel Tanks

 (2)  
AMM 28-25-02/401, APU Fuel Shutoff Valve Actuator

 D.
Access

 (1)  
Location Zone 544 Inbd Main Tank (Part), Mid Spar to Rear Spar, Left

 E.
Procedure

 S 424-010
 (1)  
Hold the valve body (9) and the gasket seal (3) in position on the spar in the fuel tank.

 S 434-011

 (2)  
From out of the tank, install the bolts (1) and the washers (2) to attach the valve body (9) to the rear spar.

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