6) Connect and tighten the sensing line to the pressure switch for the oil filter bypass.
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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
7) Attach the oil-in and the oil return lines to the bracket below the MEC with the clamps and the white bushings [1] and [2].
8) Attach the lines to the pressurization valve on the bottom of the MEC with the clamps with the white bushings [3] and [4].
9) Tighten the clamp bolts and nuts to 100-110 pound-inches (11.5-12.5 Newton meters). 10) Connect and tighten the floating clamps between the oil-in line and the upper overboard drain of the MEC.
(g) Install the fuel supply line between the fuel pump and the servo fuel heater. 1) Make sure that the coupling nuts and nipples are clean. 2) Lubricate the nipple threads with engine oil. 3) Install the tube between the fuel pump and the FUEL IN post
on the servo fuel heater.
a) Tighten the coupling nuts with your hand.
NOTE: Make sure that there is no force on the tube.
____
CAUTION: USE TWO WRENCHES WHEN YOU INSTALL THE TUBE COUPLING
_______ NUTS. USE ONE TO HOLD THE NIPPLE, AND THE OTHER TO TIGHTEN THE NUT. DAMAGE TO THE FITTING CAN OCCUR IF YOU DO NOT USE TWO WRENCHES.
4) Tighten the coupling nuts to 650-770 pound-inches (74-87 Newton meters).
S 414-006-C00
(3)
Close the left fan cowl panel (AMM 71-11-02/201).
(4)
Do the test for the leak check at engine idle (AMM 71-00-00/501).
S 794-007-C00
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FUEL NOZZLE - REMOVAL/INSTALLATION
__________________________________
1. General
_______
A. This procedure contains two tasks. The first task is the removal of the fuel nozzle. The second task is the installation of the fuel nozzle.
TASK 73-11-04-004-001-C00
2. Fuel Nozzle Removal
___________________
A. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 78-31-00/201, Thrust Reverser System
B. Access
(1)
Location Zones
502/602 Fan Cowl - Left
503/603 Fan Cowl - Right
504/604 Thrust Reverser - Left
505/695 Thrust Reverser - Right
(2)
Access Panels
5738/5739 Thrust Reverser Cowl Assy - Left
5838/5838 Thrust Reverser Cowl Assy - Right
5746 Fan Cowl Assy - Left
5846 Fan Cowl Assy - Right
C. Fuel Nozzle Removal
S 864-002-C00
(1) Remove the electrical power (AMM 24-22-00/201).
(a) Install a DO-NOT-OPERATE tag on the BAT switch.
S 014-006-C00
(2) Open the fan cowl panels (AMM 71-11-02/201).
S 014-007-C00
WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS WHEN YOU OPEN THE THRUST REVERSERS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(3) Open the thrust reverser (AMM 78-31-00/201).
S 024-004-C00
WARNING: DO NOT LET THE FUEL FROM THE FUEL MANIFOLD STAY ON YOUR SKIN.
_______ THE FUEL MANIFOLD IS FULL OF FUEL. YOU CAN ABSORB POISONOUS MATERIALS FROM THE FUEL THROUGH YOUR SKIN.
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