__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R Material No. CP1039
R
Material No. CP1041
R Material No. CP2011
R
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. CP5061
*
acetone (Ref. 70-30-00)
*
isopropyl alcohol (Ref. 70-30-00)
*
stoddard solvent (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)
*
temporary marking (Ref. 70-30-00)
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C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-00-00-710-009 Vibration Check 71-00-00-750-001 Fan Trim Balance - 1 sensor 3 speed 72-21-00-000-005 Removal of the Spinner Front Cone 72-21-00-000-006 Removal of the Spinner Rear Cone 72-21-00-000-007 Removal of the Fan Rotor Blades 72-21-00-300-009 Correction of the Static Imbalance 72-21-00-400-005 Installation of the Spinner Front Cone 72-21-00-400-006 Installation of the Spinner Rear Cone 72-21-00-400-007 Installation of the Fan Rotor Blades 72-21-00-991-327 Fig. 406 72-21-00-991-341 Fig. 407 72-21-00-991-342 Fig. 408 72-21-00-991-343 Fig. 409 72-21-00-991-344 Fig. 410 72-21-00-991-345 Fig. 411
3. Job Set-up
__________
Subtask 72-21-00-941-085
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).
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4. Procedure
_________
(Ref. Fig. 406/TASK 72-21-00-991-327, 407/TASK 72-21-00-991-341, 408/TASK
72-21-00-991-342, 409/TASK 72-21-00-991-343, 410/TASK 72-21-00-991-344)
Subtask 72-21-00-869-079
A. Remove the fan blades before record moment weight.
CAUTION : DO NOT MIX OLD FAN BLADES AND NEW RECAMBERED FAN BLADES ON A
_______
SAME FAN DISK.
NOTE : The spare blades are grouped in pairs so that the difference
____ between the moment weights is not more than 80 in.g (200 cm.g). However, you must do the checks and corrections described below before and after blade installation to make sure the engine imbalance is not more than the limits. This will also optimize the engine operation. Four conditions can exist, refer to the logic diagram. (Ref. Fig. 406/TASK 72-21-00-991-327)
NOTE : In all replacement cases: 1,2,3.....N pairs of fan blades and for
____ individual fan blade replacement, a vibration survey can be performed (Ref. TASK 71-00-00-710-009). Results from the vibration survey will determine if a trim balance is necessary. In this last case, do a trim balance operation (Ref. TASK 71-00-00-750-001) if the aircraft is at the main base or as soon as the aircraft returns to the base.
(1) Put a rubber mat in the air intake cowl.
(2) Remove the spinner front cone (Ref. TASK 72-21-00-000-005).
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