Material No. 09-001 USA MIL-S-8802 TYPE I CLASS A
FUEL TANK SEALANTPOLYSULFIDE (Ref. 20-31-00)
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R Material No. 09-013 USA MIL-PRF-81733 TYPE I CLASS A CORROSION INHIBITING BRUSH CONSISTENCY (Ref. 20-31-00)
Material No. 09-020 GB DTD-900/4549
SINGLE PART CHROMATED JOINTED COMPOUND
(Ref. 20-31-00)
Material No. 11-004 USA MIL-T-81533
1.1.1TRICHLOROETHANE (METHYL CHLOROFORM)
(Ref. 20-31-00)
Material No. 19-003 USA AMS 3819
LINT-FREE COTTON CLOTH (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-28-00-869-002 Table of the Maximum Permitted Resistance Values 20-28-00-991-004 Fig. 204 20-28-00-991-005 Fig. 205 20-28-00-991-013 Fig. 206 20-28-00-991-023 Fig. 207 20-28-00-991-029 Fig. 208
3. Job Set-up
__________
Subtask 20-28-00-110-095
A. Removal of the Grease or Oil from the Contact Areas
(1) Remove the oil and grease contamination with a MISCELLANEOUS (Material No. 19-003) moist with CLEANING AGENTS (Material No. 11-004).
Subtask 20-28-00-120-088
B. Removal of the Surface Protection from the Bonding Areas
(1) Protect the area around the area to be treated to keep to a limit the effects of the abrasive.
(2) Remove the surface protection (Alodine, paint, etc.) from the contact zone with abrasive paper glass type 1 or grade 200 emery cloth. The cleaned areas must be such that after assembly they give a zone between 1 mm (0.0393 in.) to 4 mm (0.1574 in.) around the contact faces
NOTE : You can bond all the cadmium plated, steel or conductive parts____ without removal of the surface protection and without application of sealant (this does not include the tanks).
Subtask 20-28-00-916-092
C. Temporary Protection of the Contact Areas
R R (1) If you cannot make the connection in less than 4 hours, apply COMMON GREASE (Material No. 04-012) on the surface without a surface protection. Before the connection, clean with a MISCELLANEOUS (Material No. 19-003) moist with CLEANING AGENTS (Material No. 11-004).
Subtask 20-28-00-110-096
D. Cleaning of the Contact Areas
R R (1) Remove any contamination from the contact areas with a lint-free cloth moist with CLEANING AGENTS (Material No. 11-004).
4. Procedure_________
Subtask 20-28-00-912-053
A. Bonding in the Fuselage (this does not include the wings and the tanks).
(1) Assemble the attachments (the nuts, the conductive bolts and screws, the bonding strap) and the equipment.
NOTE : The bonding strap must be as short as possible but without____ strain. Do not twist the bonding strap.
NOTE : You can use the procedure of installation of a part with a
____ conductive bolt for a blind hole in the structure.
Subtask 20-28-00-914-057
B. Protection of the Bonding
(1)
If you do not remove frequently, apply SEALANTS (Material No. 09-013) or PAINTS FOR DETAIL (INTERNAL AND EXTERN AL) (Material No. 07-001) on the bolt head, the nut and the washer. (Ref. Fig. 204/TASK 20-28-00-991-004)
(2)
If you remove the assembly frequently, assemble only. (Ref. Fig. 205/TASK 20-28-00-991-005)
(3) Make sure that the surfaces without protection are fully sealed. Subtask 20-28-00-912-054
C. Bonding of Assembly Not Removed Frequently or Not Removable (this does not include the fuselage and the tanks). (Ref. Fig. 206/TASK 20-28-00-991-013, 207/TASK 20-28-00-991-023)
(1) Assemble the equipment, the bolt, the nut, the screw, the bonding straps.
NOTE : The bonding strap must be as rigid and as short as possible.
____
Do not twist the bonding strap.
NOTE : You can use the procedure of installation with a conductive
____ bolt for a blind hole in the structure.
(2) Apply SEALANTS (Material No. 09-020) or SEALANTS (Material No. 09-001) on the attachments.
(3) Make sure that the surfaces without protection are fully sealed. Subtask 20-28-00-912-055
D. Bonding in the Wing of Removable Parts (this does not include the fuselage and the tanks). (Ref. Fig. 208/TASK 20-28-00-991-029)
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