Bonding of the Parts not Removed Frequently or not Removable
Figure 204/TASK 20-28-00-991-004
Bonding of Removable Parts in the Fuselage
Figure 205/TASK 20-28-00-991-005
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Bonding of the Parts not Removed Frequently or not Removable
Figure 206/TASK 20-28-00-991-013
Bonding with Bonding Leads
Figure 207/TASK 20-28-00-991-023
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R Bonding of Removable Parts in the Wings (This Does not Include the Tanks) Figure 208/TASK 20-28-00-991-029
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(2) Assemble the equipment and the attachments.
(a)
For static parts:
-make sure that the bonding leads are as short and straight as possible without twists.
(b)
For movable parts:
-make sure that the bonding leads have the correct length and cause no strain when the parts move.
R You must install them without twists. Install the two ends loosely before you tighten the clamp.
(3) Make sure that the surfaces without protection are fully sealed.
Subtask 20-28-00-720-089
E. Make sure that the ohmic resistance is correct (Ref. TASK 20-28-00-869-002).
5. Close-up
________
Subtask 20-28-00-942-105
A. Make sure that the work area is clean and clear of tool(s) and other items.
TASK 20-28-00-912-005
Electrical Bonding of Antennas With Conductive Bolts.
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
__________________
This procedure gives the bonding principles applicable to antennas.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific milliohmmeter
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 09-005 USA MIL-S-81733 CLASS C CORROSION INHIBITIVE INTERFAY SEALANT (Ref. 20-31-00)
R Material No. 09-016 USA MIL-PRF-81733D TYPE II CLASS B CORROSION INHIBITING FILLET CONSISTENCY (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 20-28-00-991-018 Fig. 209
3. Job Set-up
__________ Subtask 20-28-00-110-097
A. Removal of the Grease or Oil from the Contact Areas
(1) Remove any sign of grease or oil contamination with a MISCELLANEOUS (Material No. 19-003) moist with CLEANING AGENTS (Material No. 11-004).
4. Procedure
_________ Subtask 20-28-00-420-092
A. Installation of the Antennas
(Ref. Fig. 209/TASK 20-28-00-991-018)
NOTE : The antennas are supplied with special seals which cover the whole
____ flange that will replace sealant. The seals are used as a shim to match the fuselage profile.
(1)
Make sure that there is continuity between the captive nut and the adjacent structure.
(2)
Put the antenna in position.
(3)
Install 3 countersunk screws (1) and tighten them equally until the antenna is against the fuselage .
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