(6)
Remove the external power receptacle:
(a)
Remove the bolts and the washers that attach the receptacle to the receptacle pan.
(b)
Remove the external power receptacle and the safety guide from the outer side of the airplane.
3. External Power Receptacle Installation
A. Consumable Materials
(1) Sealant - BMS 5-95
B. References
(1)
24-22-0/201, Manual Control
(2)
51-31-0/201, Seals and Sealing
C. Access
(1)
Location Zone
202 Lower Nose Compartment
(2)
Access Panel
1101 External Power Receptacle Door
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Feb 20/91 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 24-41-11 Page 401
D. Install the External Power Receptacle
(1)
Install the external power receptacle:
(a)
Put the external power receptacle and the safety guide in their positions in the receptacle pan.
NOTE: Do this step out of the airplane.
(b)
Install the four bolts and the four washers through the receptacle, the receptacle pan, and the insulation plate.
(c)
Tighten the four bolts.
(d)
Apply a pressure fillet seal with the sealant around the receptacle (Ref 51-31-0/201).
(2)
Connect the electrical leads to the external power receptacle:
(a)
Install the six leads on the receptacle studs of the external power receptacle.
CAUTION: MAKE SURE YOU CONNECT THE CORRECT ELECTRICAL LEAD TO EACH RECEPTACLE STUD. AN INCORRECT INSTALLATION CAN CAUSE A MALFUNCTION OF THE CIRCUIT AND DAMAGE TO THE EQUIPMENT.
(b)
Install the nuts and the washers on the receptacle studs.
CAUTION: DO NOT INSTALL THE WASHERS BELOW THE ELECTRICAL LEADS. THIS WILL CAUSE HEAT THAT CAN BURN THE RECEPTACLE STUDS.
(c)
Remove the identification tags.
(3)
Install the conductor guard.
(a)
Put the conductor guard in its position above the receptacle studs.
(b)
Install the three bolts that attach the conductor guard to the bracket.
(c)
Tighten the bolts.
E. Do a test of the external power receptacle.
(1)
Supply electrical power (Ref 24-22-0/201).
(2)
Make sure the airplane operates satisfactorily.
(3)
Remove electrical power, if it is not necessary (Ref 24-22-0/201).
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24-41-11 Page 402 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 20/91
500 External Power Receptacle Component Location
Feb 20/91 Figure 401 24-41-11
Page 403
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
EXTERNAL POWER RECEPTACLE - INSPECTION/CHECK
1. External Power Receptacle Inspection
A. Prepare External Power Receptacle for Examination
(1)
Remove external power from airplane.
(2)
Remove nose wheel well right-hand forward access door.
(3)
Remove external power receptacle terminal cover.
B. Examine External Power Receptacle
(1)
Examine outboard side of external power receptacle for the following:
(a)
Cracked or loose pin and insulating support base.
(b)
Bent or loose pins.
(c)
Discolored or burned pins due to overheat.
(2)
Examine external power receptacle electrical cable connections for the following:
(a)
Discoloration of electrical cable terminals due to overheating or corrosion.
(b)
Correct assembly arrangement of electrical cable, washer, lock washer and nut, in that order, on each receptacle pin.
(c)
Loose receptacle pin terminal nuts.
1) Check torque on 3/8-16 nuts. Tighten to 100-120 pound-inches torque when checking.
CAUTION: DO NOT OVER TORQUE. PINS FAIL AT 200 POUND-INCHES.
2) Check torque on #10-32 nuts on dc control pins E and F. Tighten to 16-18 pound-inches when checking.
C. Restore Airplane to Normal Configuration
(1)
Install external power receptacle terminal cover.
(2)
Install nose wheel well right-hand forward access door.
(3)
Connect external power if needed on the airplane.
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Aug 15/67 24-41-11
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