(b)
The spacer mating surfaces.
(c)
The mating surfaces of the blade retainers.
(d)
The blade dovetail (root).
(e)
The bottom of the platform and the lateral surfaces.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú C02 Page 202 ú Mar 12/02
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(f)
The fan blade rear shank.
(g)
The fan blade midspan shroud mating surfaces.
(h)
The forward booster spool flange.
(i)
ENGINES WITH DAMPERS; (ENGINES POST-CFMI-SB 72-494 AND POST-CFMI-SB 72-543); Clean these areas: 1) The sheet metal of damper. 2) The blade damper retainer before you install the blade.
(on engines with dampers).
(j)
ENGINES WITH A REBROACHED FAN DISK; (ENGINES POST-CFMI-SB 72-621 AND POST-CFMI-SB 72-820); The shims.
NOTE: Rebroached fan disks are identified by a white line
____ of paint that circles the fan disk, along with the words SHIMS REQUIRED in white letters on one side of the disk. On the opposite side of the disk are the words DISK REPAIRED, also in white letters. Reference CFMI Service Bulletins 72-621 and 72-820 for more information.
S 212-017-C00
(4)
Do an inspection of the fan blade dovetails and midspan shroud coatings (AMM 72-31-02/601).
S 212-023-C00
(5)
Do an inspection of the dovetail slots pressure faces of the fan disk (AMM 72-31-02/601).
S 202-026-C00
(6)
ENGINES WITH A REBROACHED FAN DISK; (ENGINES POST-CFMI-SB 72-621 AND POST-CFMI-SB 72-820); Make an inspection of the shim (AMM 72-31-02/601).
NOTE: Rebroached fan disks are identified by a white line of
____ paint that circles the fan disk, along with the words SHIMS REQUIRED in white letters on one side of the disk. On the opposite side of the disk are the words DISK REPAIRED, also in white letters. Reference CFMI Service Bulletins 72-621 and 72-820 for more information.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 642-016-C00
WARNING:_______DO NOT BREATHE THE FUMES FROM THE LUBRICATION PRODUCTS. DO NOT GET THE LUBRICATION PRODUCTS ON YOUR SKIN OR CLOTHING. USE THE LUBRICATION PRODUCTS ONLY WITH A SUFFICIENT FLOW OF AIR. THE LUBRICATION PRODUCTS ARE POISONOUS AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(7)
Apply the lubricant to the above cleaned areas (Refer to the CFMI Standard Practices Manual for specific instructions, CFMI SPM 70-63-15).
S 422-027-C00
(8)
Install the fan rotor blades on the fan disk (AMM 72-31-02/401).
NOTE: Make sure you install the fan rotor blades in the same
____
position from which they were removed.
G. Put the Airplane Back To Its Usual Condition
S 092-013-C00
(1)
Remove the protective mats.
S 092-014-C00
(2)
Make sure there are no tools and parts in the inlet.
S 092-015-C00
(3)
Remove the DO-NOT-OPERATE tags from the start levers.
S 862-012-C00
(4)
Close these circuit breakers:
(a) Main Power Distribution Panel P6
1) ENG 1 START VALVE
2) ENG 2 START VALVE
S 862-011-C00
(5) Do the Vibration Survey (AMM 71-00-00/501, Test No. 7).
NOTE: A vibration survey can be done at the operator's discretion
____ when the fan blades are replaced or the same fan blade set is installed again. The results of the survey will show if it is necessary to do the Fan Trim Balance (AMM 72-31-00/501) or that the installation of the same fan blade set is correct.
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