20-41-01
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A
757 MAINTENANCE MANUAL
S 862-016
CAUTION: THE GROUNDING LEAD ON THE WRIST STRAP MUST TOUCH THE
_______ SKIN TO GIVE THE PROTECTION THAT IS NECESSARY. FAILURE TO USE THE WRIST STRAP CORRECTLY CAN CAUSE DAMAGE TO THE ESDS PRINTED CIRCUIT BOARDS.
(4)
Attach the wrist strap correctly on the person that will remove the printed circuit board.
S 862-017
(5)
Open the access door on the card file.
S 862-018
(6)
From the location decal, find the printed circuit board to be installed.
S 862-019
(7)
Remove the ESDS printed circuit board from the conductive bag or the carrier.
S 422-020
(8)
With the top and bottom (or left and right) extractors, put the printed circuit board into the card file.
S 432-021
(9)
Attach the printed circuit card with the extractors.
S 862-022
(10)
Close the access door for the card file.
S 862-023
(11)
Disconnect the wrist strap from the ELECTROSTATIC GROUND JACK.
TASK 20-41-01-002-024
4. ESDS Metal Encased Unit Removal Handling________________________________________
A. General
(1) The metal encased units can be put on a rack, the airplane structure, or a control panel.
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757
MAINTENANCE MANUAL
B. Equipment
(1)
Wrist Straps - 3M 2066 or 2067
(a) A wrist strap is kept on the plenum of th racks E3 and E4 in the main equipment center. (Fig. 202)
(2)
Ohmmeter
(3)
Conductive electrical dust caps and connector
covers (Conductive Bag - Optional)
NOTE: Conductive dust caps and connector
____
covers are black or grey in color.
(a)
ITT Cannon - as applicable (stamped "CONDUCTIVE")
~..........................................
|PART NUMBER |MARKING ON CAP |CONNECTOR |
............................................
|025-1155-001 |BKAD1-A&B-R |BKAD1-A-R |
| | |BKAD1-B-R |
............................................
|025-1156-001 |BKAD1-C-R |BKAD1-C-R |
............................................
|025-1157-001 |BKAD2&3-A&B-R |BKAD2-A-R |
| | |BKAD2-B-R |
| | |BKAD3-A-R |
| | |BKAD3-B-R |
............................................
|025-1158-001 |BKAD2&3-C-R |BKAD2-C-R |
| | |BKAD3-C-R |
2.............…................…...........1
(b)
Souriau - as applicable
~............................................
|PART NUMBER |TYPE CONNECTOR |SHELL SIZE |
..............................................
|8660-1404 |Power | 1 |
..............................................
|8660-1405 |Signal | 1 |
..............................................
|8660-1406 |Power | 2 & 3 |
..............................................
|8660-1407 |Signal | 2 & 3 |
2.............….................…............1
(4) Anti-static dust caps, connector covers or
conductive bags (alternate when conductive caps
and covers not available)
(a) Plastic dust caps and connector covers
that have an anti-static solution applied
and they are dated.
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757 MAINTENANCE MANUAL 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：757 AMM 飛機維護手冊 STANDARD PRACTICES - AIRFRAME(152)
