(b)
Put a container below the removed fuel nozzle to catch the fuel leakage.
(c)
ENGINES PRE-CFMI-SB 73-116
(ENGINES WITH FUEL DRAIN MANIFOLDS);
Disconnect the drain line from the shroud.
(d)
Remove the shroud connector of the fuel manifold from the fuel nozzle.
CAUTION: DO NOT MOVE THE SHROUD CONNECTOR REARWARD TOO FAR TO GET
_______ ACCESS TO THE COUPLING NUT OF THE FUEL SUPPLY LINE. THIS CAN PREVENT DAMAGE TO THE SHROUD CONNECTOR.
(e)
Move the shroud connector rearward until you can get access to the coupling nut of the fuel supply line.
(f)
Remove the coupling nut from the fuel nozzle.
(g)
Remove the three bolts from the fuel nozzle flange.
NOTE: At some positions, manifold hinge brackets or engine
____ plumbing brackets are installed with the fuel nozzle. It is necessary to remove these brackets for removal of the fuel nozzle. Identify the bolts and brackets by the position number. Count the nozzles clockwise from nozzle No. 1, to get the position of the removed fuel nozzle. Nozzle No. 1 is located almost to the right of the 12 o'clock position.
(h)
Move the fuel nozzle forward to remove the nozzle tip from the combustor swirl cup.
(i)
Turn the fuel nozzle clockwise while you move the fuel supply line at an angle to the combustion case.
(j)
Remove the fuel nozzle and gasket from the combustion case.
(k)
Discard the C-ring seal from the gasket.
(l)
Keep a record of the part number, serial number and position of the removed fuel nozzle.
(m)
Remove and discard the O-ring from the fuel nozzle.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
73-11-04
ALL ú ú C02 Page 402 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE D SEE A
FUEL NOZZLE (20 LOCATIONS)
SEE B
SEE C
FUEL MANIFOLD
DRAIN 120
MANIFOLD 2
19 3 18
4 17 POSITION FUEL NOZZLE 5
16 6
SEEF 15
FWD
7 14 8
A
13 9SEE F 12 1011 SEE G
VIEW IN FORWARD DIRECTION
FUEL
MANIFOLD
FUEL MANIFOLDDRAIN MANIFOLD DRAIN MANIFOLD
DRAIN LINE
DRAIN MANIFOLD/
DRAIN LINE
FWD LINE CONNECTOR FWD
AT NOZZLE POSITIONS
AT NOZZLE POSITIONS 1,2,4,5,7,9,10,12,13,3,6,8,11 AND 18
14,15,16,17,19 AND 20 B
C
Fuel Nozzle Installation
Figure 401 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES PRE-CFMI-SB 73-116 ú
73-11-04
(WITH FUEL DRAIN MANIFOLDS) ú ú C01 Page 403 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
DRAIN LINE SEE E A LINE FUEL SUPPLY
SHROUD CONNECTOR HINGE BRACKET MANIFOLD A COMBUSTION CASE
FLANGE FUEL NOZZLE FUEL NOZZLE
GASKET
TIP OF FUEL NOZZLE
SWIRL CUP COMBUSTOR FWD
NOZZLE FUEL CONNECTOR SHROUD NUT COUPLING SHROUD D SHROUD FUEL NOZZLE B CONNECTOR THREADS STRAINER 1 B FUEL INLET
E FWD
O-RING O-RING LINE FUEL SUPPLY
1 IN PARKER-HANNIFIN FUEL NOZZLE INLET STRAINER INSTALLED ONLY A-A Figure 401 (Sheet 2) Fuel Nozzle Installation B-B STRAINER 1 FUEL INLET
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES PRE-CFMI-SB 73-116 ú 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 发动机燃油和控制(44)
