A. Install the fan blades (Ref. TASK 72-21-00-400-007).
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B. Make sure that the work area is clean and clear of tool(s) and other items.
Subtask 72-21-00-942-073
C. Remove the warning notice(s).
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Detailed Inspection and Relubrication of Fan Blade Dovetails, Midspan Shrouds, Retainers, Spacers, Dampers and Fan Disk Dovetail Slots
1. Reason for the Job
__________________
Refer to the MPD TASK: 722000-C2
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific soft bristle brush No specific warning notice
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R Material No. CP1039
R
Material No. CP1041
R Material No. CP2011
R
Material No. CP2104
R Material No. CP2559
R
R Material No. CP2560
R
R Material No. CP2566
R
R Material No. CP2584
R
R Material No. CP2656
R
Material No. CP5062
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acetone (Ref. 70-30-00)
*
isopropyl alcohol (Ref. 70-30-00)
*
stoddard solvent (Ref. 70-30-00)
*
molykote G rapid (Ref. 70-30-00)
*
ardrox 552 (Ref. 70-30-00)
*
turco ind 79 (Ref. 70-30-00)
*
mag-chem teksol (Ref. 70-30-00)
*
degreasol 99 R (Ref. 70-30-00)
*
mag-chem skysol (Ref. 70-30-00)
*
MoS2 dry film lubricant (Ref. 70-30-00)
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C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
72-21-00-000-007 Removal of the Fan Rotor Blades 72-21-00-210-006 Inspect Fan Rotor Blades Removed from the Fan Disk. 72-21-00-210-007 Inspection/Check of the Stage 1 Booster Vane, Fan
Disk and Fan Blades Spacers. 72-21-00-400-007 Installation of the Fan Rotor Blades 72-21-00-991-335 Fig. 611
3. Job Set-up
__________ Subtask 72-21-00-941-089
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 72-21-00-020-079
B. Remove the fan blades (Ref. TASK 72-21-00-000-007). Subtask 72-21-00-110-056
C. CLean the fan blade dovetails. WARNING : CLEANING SOLVENTS ARE FLAMMABLE, VOLATILE, TOXIC. THEY SHOULD
_______ BE USED WITH ADEQUATE VENTILATION. AVOID PROLONGED BREATHING OF VAPORS AND REPEATED OR PROLONGED CONTACT WITH THE SKIN, OR CLOTHING.
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(1) Clean the fan blade dovetails and midspan shrouds, the fan blade R spacers and the fan disk dovetail slots with isopropyl alcohol R (Material No. CP1041) or acetone (Material No. CP1039) or stoddard R solvent (Material No. CP2011) or ardrox 552 (Material No. CP2559) or R turco ind 79 (Material No. CP2560) or mag-chem teksol (Material No. R CP2566) or degreasol 99 R (Material No. CP2584) or mag-chem skysol R (Material No. CP2656). Use a soft bristle brush if necessary, to R remove dirt build-ups.
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