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时间:2011-04-19 08:02来源:蓝天飞行翻译 作者:航空
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 (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 are dated.
 B. Install the Metal Encased Units with ESDS Placards
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A

757
MAINTENANCE MANUAL

 S 862-042
 CAUTION:_______ MAKE SURE YOU KEEP CONTAMINATION OR UNWANTED MATERIAL AWAY FROM
 THE SENSITIVE DEVICE.  CONTAMINATION OR UNWANTED MATERIAL NEAR
 THE SENSITIVE DEVICE CAN CAUSE A MALFUNCTION IN THE SENSITIVE

 DEVICE.
 (1)  Remove the system electrical power with the applicable Removal/Installation procedure.
 S 762-049
 WARNING: USE A WRIST STRAP WITH A MINIMUM GROUNDING LEAD RESISTANCE OF
_______ 250 KILOHMS AND A MAXIMUM OF 1.5 MEGOHMS. USE OF A LWO RESISTANCE WRIST STRAP CAN CAUSE INJURY TO PERSONS IF A HIGH VOLTAGE SOURCE IS TOUCHED.
 (2)  Do these steps to do a test of the wrist strap resistance:
 (a)  Use an ohmmeter to make sure the wrist strap assembly has a minimum resistance of 250 kilohms and a minimum of 1.5 megohms.
 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 METAL ENCASED UNIT.
 (b)  
Put the wrist strap on the person that will remove the device.

 (c)  
Use an ohmmeter to make sure the resistance is less than 10 megohms.


 S 432-031
 (3)  Remove all of the conductive dust caps, the connector covers , or conductive bags from the unit to be installed.
 NOTE: Make sure you do not touch the electrical pins.
____
 S 422-032
 (4)  Install the ESDS unit with the applicable Removal/Installation procedure.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 (5)  S 842-050Remove the strap.

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 ALL  ú ú 01 Page 213 ú Jan 20/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 CIRCUIT BREAKER RESET - MAINTENANCE PRACTICES
_____________________________________________
 TASK 20-60-01-862-001
 1.  Circuit Breaker Reset_____________________
 A. General
 (1)  
This procedure is for on-the-ground maintenance.

 (2)  
Circuit breakers open when there is an electrical overload in the airplane system. A circuit breaker that opens because of an electrical overload is known as a "tripped" circuit breaker.

 (3)  
If there are currently specific instructions for the reset of a tripped circuit breaker in maintenance and troubleshooting procedures, follow those instructions.

 (4)  
A defective circuit breaker can cause the circuit breaker to open. Make sure that the circuit breaker is serviceable.

 (5)  
Use your judgement and airline policy to reset a tripped circuit breaker.

 (6)  
 
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