(1)
Rigging Pin ND-3, 0.250 | 0.005 inch (6.35 | 0.127 mm) diameter by
2.00 inches (50.8 mm) long.
(2)
Voltage Power Supply Probe - 0 to 65 volts DC range
(3)
Pitot Static Leak Test - 0 to 12 inches of water rangeStandard Tools and Equipment
(1)
Stop Watch
(2)
VoltmeterReferences
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 34-11-00/201, Pitot-Static SystemAccess
(1)
Location Zone 801 Nose Cargo Door
Prepare For Test
S 485-080
(1)
Supply electrical power (AMM 24-22-00/201).
(2)
Install the safety barrier across the door opening.
S 865-081
(3)
Make sure these circuit breakers are closed:
(a)
On the Auxilary External 2 Power Center-Right panel P715: 1) NOSE CARGO DOOR
S 495-174
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747-400 MAINTENANCE MANUAL
(b)
On the Power Distribution Center-Right panel P415: 1) 415F16, NOSE CARGO DOOR CONTROL
(c)
On the Nose Cargo Door Power panel H122: 1) DOOR LIFT 2) PULL UP CAM 3) LATCHES 1-4R 4) LATCHES 1-4L 5) LATCHES 5-8R 6) LATCHES 5-8L
S 865-082
(4)
Make sure the door is fully closed and latched.
G.
Dual Control Switches Test (Fig. 508)
NOTE: The test is to make sure that holding one of the two control
____ switches in the closed or open position will not operate the door.
S 865-083
(1)
Simultaneously hold the control switches in the open position for 30 seconds and release the DOOR CONTROL switch.
S 215-084
(2)
Make sure the door stops.
S 215-085
(3)
Release the SYSTEM POWER switch and make sure the door remains in position.
S 215-086
(4)
Hold the DOOR CONTROL switch in the OPEN and CLOSE positions and make sure the door remains in position.
S 865-087
(5)
Simultaneously hold the control switches to fully close the door.
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747-400 MAINTENANCE MANUAL
Pressure Switch and Isolation Relay Test (Fig. 507) S 725-225
(1) Do this task: Pressure Switch and Isolation Relay TestLamp Test (Fig. 508)
S 865-110
(1) Make sure the door is fully closed and latched.
(2) S 215-111On the door control and lights panel, Push the LAMP TEST switch and look to see these indication lights come on: (a) White POWER ON (b) Green LATCHES CLOSED (c) Green DOOR UP (d) Green LOCK_OUT ENGAGED.
(3) S 215-112Release the LAMP TEST switch and look to see this indication: (a) Green LATCHES CLOSED light remains on.
(4) S 215-113On the latch actuator test panel, Push the LAMP TEST switch and look to see these indication lights come on: (a) Green LATCH OPEN (b) Green LATCH CLOSED
(5) S 865-114Release the lamp test switch.
(6) S 865-115Push and hold the SYSTEM POWER switch to the OFF/LOCK TEST position and look to see these indications: (a) Green LATCHES CLOSED light goes off (b) Green LOCK-OUT ENGAGE light come on.
Latch System Test (Fig.503) S 865-117
(1) Make sure the door is fully closed and latched.
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747-400 MAINTENANCE MANUAL
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本文链接地址：747-400 AMM 飞机维护手册 舱门 DOORS 2(18)
