(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.) and 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.
Subtask 20-28-00-916-090
C. Temporary Protection of the Contact Areas
(1) If you cannot make the connection in less than 1/4 hour, 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 20-28-00-110-092
D. Cleaning of the Contact Areas
(1) Remove any contamination from the contact areas with a MISCELLANEOUS (Material No. 19-003) moist with CLEANING AGENTS (Material No. 11-004).
4. Procedure
_________ Subtask 20-28-00-912-066
A. Bonding
(1) Assemble the equipment and the attachments on the structure. NOTE : You can use the procedure of installation of a part with a
____ contact with a conductive bolt for a blind hole in the structure.
NOTE : You must install a washer below the terminal only when it is
____
shown on the drawing.
Subtask 20-28-00-914-051
B. Protection of the Bonding
(1) Protection of the bonding installed with screws, bolts, and conductive (or non conductive) nuts. (Ref. Fig. 202/TASK 20-28-00-991-010)
(a)
Installation of a removable part.
1 Apply SEALANTS (Material No. 09-007)
_
(b)
Installation of a part not frequently removed or not removable. 1 Apply SEALANTS (Material No. 09-001)
_
(2) Make sure that the surfaces without protection are fully sealed. Subtask 20-28-00-720-087
C. Make sure that the ohmic resistance is correct (Ref. TASK 20-28-00-869-002).
Bonding with Conductive Nuts and Screws
Figure 202/TASK 20-28-00-991-010
1EFF : ALL 1 20-28-00 Page 209
1 1 Feb 01/98
1 1
1CES 1
5. Close-up
________ Subtask 20-28-00-942-103
A. Make sure that the work area is clean and clear of tool(s) and other items.
TASK 20-28-00-912-003
Electrical Bonding of Electrical Connectors
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL MATERIALS
_______
ONLY WITH A GOOD SUPPLY OF AIR.
OBEY THE MANUFACTURERS INSTRUCTIONS.
PUT ON PROTECTIVE CLOTHING.
DO NOT GET THEM IN YOUR MOUTH.
DO NOT SMOKE.
DO NOT BREATHE THE GAS.
THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT.
GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific abrasive paper glass type 1
No specific grade 200 emery cloth
No specific lint free cloth
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 04-012 USA VV-P-236 PURE MINERALVASELINE OR PETRO- LATUM (Ref. 20-31-00)
Material No. 07-001
ELECTRICAL BONDING COATING (BLUE COLOR)
(Ref. 20-31-00)
R Material No. 09-014 GB AFS 1344 CORROSION INHIBITIVE COATING (Ref. 20-31-00)
Material No. 09-020 GB DTD-900/4549
SINGLE PART CHROMATED JOINTED COMPOUND
(Ref. 20-31-00)
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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)
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