757 MAINTENANCE MANUAL
 D. Do a Test of the External Power Contactor Installation
 S 864-008
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 714-010

 (2)  
Do these steps at the pilots' overhead panel, P5, to do a test of the contactor:

 (a)  
Push the BAT switch to the ON position.

 (b)  
Push the two BUS TIE switches to the AUTO position.

 (c)  
Push the EXT PWR switch to the ON position.

 (d)  
Make sure the two BUS OFF lights are off.

 (e)  
Push the EXT PWR switch.

 (f)  
Make sure the ON light in the EXT PWR switch goes off.

 (g)  
Push the BAT switch to the OFF position.

 S 914-011
 (3)  
Do the activation procedure for the spoilers if you did the deactivation procedure (AMM 27-61-00/201).

 (4)
Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 864-012
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A

757 MAINTENANCE MANUAL
 EXTERNAL POWER RECEPTACLE - MAINTENANCE PRACTICES
_________________________________________________
 1.  General_______
 A.  The external power receptacle, D1718 (referred to as the receptacle) is on the bottom right side of the airplane, aft of the nose wheel. The receptacle is on the external power panel, P30.
 B.  This procedure has these tasks:
 (1)  
External Power Receptacle - Inspection/Check

 (2)  
Remove the External Power Receptacle

 (3)  
Install the External Power Receptacle

 TASK 24-41-02-202-001
 2.  External Power Receptacle - Inspection/Check____________________________________________
 A.  General
 (1)  This procedure uses wear gages to do a test of the pins on the external power receptacle. The wear gages are used to make sure the pins are in tolerance.
 B.  Equipment
 (1)  F70284-1, Wear Gage Set, External Power Plug
 and Receptacle

 C.  Access
 (1)  Location Zones 124 Area Below Forward Cargo Compartment (Right)
 D.  Do an Inspection/Check of the External Power Receptacle
 S 212-002
 (1)  
Visually examine the receptacle for apparent damage.

 S 212-003

 (2)  
Make sure all pins on the receptacle are correctly installed on the receptacle.

 (3)  
Make sure none of the pins show a bend.

 (4)
Try to move the wear gage F70284-2 across pins A, B, C, and N.

 S 222-006

 (5)  
Try to move the wear gage F70284-3 across pins E and F.

 S 212-004
 S 222-005
 (a)  If a pin accepts the "No-Go" gage or is damaged, replace the external power receptacle.
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INDICATOR LIGHTS
A 757 MAINTENANCE MANUAL
FUSELAGE

EXTERNAL POWER RECEPTACLE SEE

FWD

EXTERNAL POWER RECEPTACLE

External Power Receptacle Inspection
Figure 201

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A
757
MAINTENANCE MANUAL

External Power Receptacle Installation
Figure 202

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