R No specific Torque Wrench : range 5.00 to 35.00 lbf.in
R (0.05 to 0.40 m.daN)
B. Consumable Materials
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Material No. CP1039 *
acetone (Ref. 70-30-00)
Material No. CP1041 *
isopropyl alcohol (Ref. 70-30-00) R Material No. CP2011 * R stoddard solvent (Ref. 70-30-00)
Material No. CP2240 USA MIL-5-8802
scotch-brite type 3M-CFS (Ref. 70-30-00)
Material No. CP2428 USA MIL-S-8802E
sealant PR1422 A (Ref. 70-30-00)
Material No. CP2497 *
Dow Corning 93-006 sealant (Ref. 70-30-00) R Material No. CP2559 * R ardrox 552 (Ref. 70-30-00) R Material No. CP2560 *
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REFERENCE DESIGNATION
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R turco ind 79 (Ref. 70-30-00)
R Material No. CP2566 *
R mag-chem teksol (Ref. 70-30-00)
R Material No. CP2584 *
R degreasol 99 R (Ref. 70-30-00)
R Material No. CP2656 *
R mag-chem skysol (Ref. 70-30-00)
C. Referenced Information
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REFERENCE DESIGNATION
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71-13-00-010-040 Opening of the Fan Cowl Doors
71-13-00-410-040 Closing of the Fan Cowl Doors
71-13-15-991-300 Fig. 401
3. Job Set-up
__________
Subtask 71-13-15-860-050
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the access platform is in position.
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B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
4. Procedure
_________
(Ref. Fig. 401/TASK 71-13-15-991-300)
Subtask 71-13-15-110-050
A. Preparation of the Surfaces for Electrical Bonding
(1) Remove all scratches and burrs which are more than 0.010 in. (0.25 mm) deep with a scotch-brite type 3M-CFS (Material No. CP2240) pad.
(2) Make smooth the surfaces of the bolts (5) and the countersunk holes of the aerodynamic strake (10) where the bolts will touch.
(3) Make smooth the surface of the bonding strap where the back plate
(15) will touch and approximately 0.25 in. (6.35 mm) more than the surface of the back plate.
(4) Make smooth the surfaces of the back plate (15) where the bonding strap will touch and approximately 0.25 in. (6.35 mm) more than the surface of the bonding strap.
(5) Make smooth the surfaces of the back plate (15) where the washers
(20) will touch and approximately 0.25 in. (6.35 mm) more than the diameter of the washers.
(6) Make smooth the surfaces of the two washers (20) and nuts (25) that will touch at the bonding strap.
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