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IGNITION LEAD (RIGHT) - REPAIRS
_______________________________ TASK 74-21-10-300-005 Repair of the Burned or Pitted Igniter Contact
1. Reason for the Job
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Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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No specific lint-free cloth No specific CRATEX polishing block P/N3802 extra fine grade No specific Unison Industries contact polishing tool (optional)
P/N 11-10786-1
B. Consumable Materials
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Material No. CP1008
R R Material No. Material No. CP1039 CP2011
R R R R R R R R R R Material No. Material No. Material No. Material No. Material No. CP2559 CP2560 CP2566 CP2584 CP2656
*
trichloroethylene (Ref. 70-30-00)
*
acetone (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)
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C. Referenced Information
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REFERENCE DESIGNATION
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74-21-10-000-002 Removal of the Right Ignition Lead
74-21-10-400-002 Installation of the Right Ignition Lead
74-21-10-991-303 Fig. 801
3. Job Set-up
__________
Subtask 74-21-10-020-055
A. Remove the ignition lead (Ref. TASK 74-21-10-000-002).
4. Procedure
_________
(Ref. Fig. 801/TASK 74-21-10-991-303)
Subtask 74-21-10-350-054
A. Removal of Burns and Pits
(1) Hold the end of the ignition lead firmly by hand. Clean the carbon deposits from the metal contact with CRATEX polishing block P/N3802 extra fine grade or Unison Industries contact polishing tool (optional) P/N 11-10786-1. Apply light pressure in a circular motion and keep the polishing block parallel to the contact surface.
(2) Continue to polish the igniter contact until the burns and pits are removed.
Subtask 74-21-10-220-051
B. Measure the dimension between the contact face and the retaining ring groove. Replace the ignition lead if this dimension is less than 0.055 in. (1.4 mm).
Subtask 74-21-10-160-053
C. Clean the ceramic insulator sleeve and contact with a lint-free cloth R that is moist with trichloroethylene (Material No. CP1008) or stoddard R solvent (Material No. CP2011) or acetone (Material No. CP1039) or ardrox R 552 (Material No. CP2559) or turco ind 79 (Material No. CP2560) or mag-R chem teksol (Material No. CP2566) or degreasol 99 R (Material No. CP2584) R or mag-chem skysol (Material No. CP2656) .
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Repair Igniter Contact
Figure 801/TASK 74-21-10-991-303
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________ Subtask 74-21-10-420-055
A. Install the ignition lead (Ref. TASK 74-21-10-400-002).
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ECES E TASK 74-21-10-300-006 Replacement of the Ceramic Insulator Sleeve
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1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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