79-21-02
ALL ú ú C01 Page 409 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
MAIN OIL/FUEL HEAT EXCHANGER - INSPECTION/CHECK
_______________________________________________
1. General
_______
A. This procedure contains a visual check of the Main Oil/Fuel Heat Exchanger for damage.
TASK 79-21-02-216-001-C00
2. Visual Inspection
_________________
A. References
(1)
AMM 71-11-02/201, Fan Cowl Panel
(2)
AMM 79-21-02/601, Main Oil/Fuel Heat Exchanger
B. Access
(1)
Location Zones
506 Engine No. 1
606 Engine No. 2
(2)
Access Panels 5737L/5746L Engine No. 1 - Fan Cowl Assembly 5837R/5846R Engine No. 2 - Fan Cowl Assembly
C. Procedure
S 016-002-C00
(1)
Open the left fan cowl panel (AMM 71-11-02/201).
S 216-003-C00
(2)
Examine the main oil/fuel heat exchanger for this type of damage:
(a)
Cracks in all areas.
1) If there are cracks, replace the main oil/fuel heat exchanger (AMM 79-21-02/401).
(b)
Dents, gouges and scratches in the external sealing faces.
1) If there are dents, gouges or scratches in the external sealing faces, replace the main oil/fuel heat exchanger (AMM 79-21-02/401).
S 416-004-C00
(3) Close the left fan cowl panel (AMM 71-11-02/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
79-21-02
ALL ú ú C02 Page 601 ú Jul 12/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
OIL SUPPLY FILTER ELEMENT - REMOVAL/INSTALLATION
________________________________________________
1. General_______
A. The oil supply filter is found behind an access cover in the lubrication
unit.
B. You can clean the filter element and use it again
(Ref CFMI Component Maintenance Manual).
C. This procedure includes instructions to set the clogging indicator.
TASK 79-21-03-004-001-C00
2. Remove the Oil Supply Filter Element____________________________________
A. Equipment
(1) Container - 1 quart (1 liter) capacity for oil.
B. References
(1) AMM 71-11-02/201, Fan Cowl Panel
C. Access
(1)
Location Zones
506 Engine No. 1
606 Engine No. 2
(2)
Access Panels
5737L/5746L Fan Cowl Panels - Engine No. 1
5837R/5846R Fan Cowl Panels - Engine No. 2
D. Procedure (Fig. 401)
S 014-002-C00
(1)
Open the fan cowl panels (AMM 71-11-02/201).
S 944-003-C00
(2)
Put the container below the oil supply filter to collect the oil from the filter.
S 034-004-C00
WARNING: DO NOT GET THE HOT OIL ON YOUR SKIN WHEN YOU REMOVE OR INSTALL
_______ THE FILTER. THE OIL IS VERY HOT AND CAN CAUSE BAD BURNS.
DO NOT LET THE OIL STAY ON YOUR SKIN FOR A LONG TIME. IF THE OIL IS ON YOUR SKIN FOR A LONG TIME, INJURY CAN OCCUR.
CAUTION:_______CLEAN ALL OIL FROM THE PAINTED SURFACES. THE OIL WILL MAKE THE
PAINT BECOME SOFT AND CAUSE DAMAGE TO THE EQUIPMENT.
(3)
Remove the filter drain plug and let the oil drain from the filter.
(4)
Remove and discard the O-ring from the drain plug.
S 034-005-C00
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79-21-03
ALL ú ú C01 Page 401 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
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