NOTE : All the cadmium plated, steel or conductive parts can be
____ bonded without removing the surface protection and without seal, this does not include the fuel tanks.
Subtask 20-28-00-916-089
C. Temporary Protection of the Contact Areas
(1) If you cannot make the connection in less than 1/4 hours, apply COMMON GREASE (Material No. 04-012) on the surface without a surface protection. Before the connection, clean with MISCELLANEOUS (Material No. 19-003) moist with CLEANING AGENTS (Material No. 11-004).
Subtask 20-28-00-110-090
D. Cleaning of the Contact Areas
(1) Remove any contamination from the contact areas with MISCELLANEOUS (Material No. 19-003) moist with CLEANING AGENTS (Material No. 11-004).
4. Procedure
_________
Subtask 20-28-00-912-065
A. Bonding
(1) Assemble the sacrificial angles to the structure with the rivets (1) or the rivets (2) and the captive nuts (3).
NOTE : You must assemble the captive nuts on the fuselage only (this
____ does not include the tanks or the wings).
(2) If you cannot make the assembly in less than 1/4 hour, apply a thin coat of COMMON GREASE (Material No. 04-012) on the contact.
Subtask 20-28-00-914-050
B. Protection of the Bonding
(Ref. Fig. 201/TASK 20-28-00-991-003)
R (1) Apply PAINTS FOR DETAIL (INTERNAL AND EXTERN AL) (Material No. 07-R 001) if the rivets are on the fuselage (this does not include the wings).
(2)
Apply SEALANTS (Material No. 09-020) if the rivets are in the wing (this does not include the tanks).
(3)
Apply SEALANTS (Material No. 09-001) or SEALANTS (Material No. 09-014) if the rivets are in the wing.
(4)
Make sure that the surfaces without protection are fully sealed.
Bonding of the Rivets
Figure 201/TASK 20-28-00-991-003
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(5) Install the component. Subtask 20-28-00-720-086
C. Make sure that the ohmic resistance is correct (Ref. TASK 20-28-00-869-002).
5. Close-up
________ Subtask 20-28-00-942-102
A. Make sure that the work area is clean and clear of tool(s) and other items.
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TASK 20-28-00-912-002
Electrical Bonding of Components With Conductive Bolts and Screws in the Tanks
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
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 04-012 USA VV-P-236 PURE MINERALVASELINE OR PETRO- LATUM (Ref. 20-31-00) Material No. 09-001 USA MIL-S-8802 TYPE I CLASS A FUEL TANK SEALANTPOLYSULFIDE (Ref. 20-31-00) Material No. 09-007 USA MIL-S-4383 R BRUSHABLE FUEL RESISTANT COATING (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 20-28-00-991-010 Fig. 202
3. Job Set-up
__________
Subtask 20-28-00-110-091
A. Removal of the Grease or Oil from the Contact Areas
(1) Remove the oil and grease contamination with MISCELLANEOUS (Material No. 19-003) moist with CLEANING AGENTS (Material No. 11-004).
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