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28-22-15
ALL ú ú 01 Page 408 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
ASSEMBLY OF FLEXIBLE FULL COUPLING TO GAGE REQUIREMENTS
SIZE MAX. GAGE MIN. GAGE GAGE NO. ST8709H SIZE MAX. GAGE MIN. GAGE GAGE NO. ST8709H
08 0.59 0.47 1 36 0.93 0.76 4
10 0.59 0.47 2 40 0.93 0.76 4
12 0.69 0.55 2 48 0.93 0.76 4
16 0.75 0.60 3 56 1.03 0.88 5
20 0.75 0.60 3 64 1.03 0.88 5
24 0.93 0.76 4 72 1.16 0.99 6
28 0.93 0.76 4 80 1.39 1.22 7
32 0.93 0.76 4 88 1.39 1.22 7
DIMENSIONAL REQUIREMENTS FOR ASSEMBLING FLEXIBLE FULL COUPLING
Flexible Full Coupling Installation
Figure 403 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
28-22-15
ALL ú ú 01 Page 409 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 654-025
WARNING:_______DO THE FUEL TRANSFER PROCEDURE TO REMOVE AIR POCKETS. AIR POCKETS CAN CAUSE THE ENGINE TO STOP IN FLIGHT.
(14) If the engine fuel feed tubing in the No. 2 tank was disconnected, do this task: Fuel Transfer to Remove Air Pockets from the Engine Fuel Feed Line Adjacent to the Defueling Valve (AMM 28-23-00/201).
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28-22-15
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
FUEL LINE AND COUPLINGS - INSPECTION/CHECK
__________________________________________
1. General_______
A. This procedure has two tasks:
(1)
A pressure test for leakage in the fuel feed tubing.
(2)
An inspection for damage in the fuel system tubing and couplings.
B. The pressure test can be used as an alternative to the Task: Engine Fuel Feed Lines/Coupling Vacuum Test (AMM 28-22-00/201). But the vacuum test is the recommended test to find problems with the fuel-feed system.
TASK 28-22-15-216-008
2. Engine Fuel-Feed Pressure Test______________________________
A. Equipment
(1)
Air Pressure Source - 35 psig capacity
(2)
Pressure Check Equipment - locally made test equipment (Fig. 602).
B. References
(1)
AMM 12-11-00/301, Fuel Tank Pressure Fueling
(2)
AMM 24-22-00/201, Electrical Power - Control
(3)
AMM 28-10-00/201, Fuel Tanks
(4)
AMM 28-11-11/401, Wing Fuel Tank Access Panels
(5)
AMM 28-11-31/401, Center Tank Access Panel
(6)
AMM 28-22-15/401, Fuel Lines and Fittings
(7)
AMM 28-23-00/201, Defueling
(8)
AMM 71-11-02/201, Fan Cowl Panels
C. Access
(1)
Location Zones
303 Left Wing Inboard Leading Edge
305 Left Fuel Tank
403 Left Wing Inboard Leading Edge
405 Right Fuel Tank
(2)
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