(2)
Set the hook actuator in the rigged open position as follows (Fig. 403):
CAUTION: USE A TORQUE WRENCH WITH A DIAL INDICATOR TO FIND WHEN THE
_______ ACTUATOR INTERNAL STOPS ARE AGAINST EACH OTHER. DO NOT USE MORE THAN 70 POUND-INCHES OF TORQUE. IF YOU USE MORE THAN 70 POUND-INCHES, YOU CAN CAUSE INTERNAL DAMAGE TO THE ACTUATOR.
(a)
Use a torque wrench with a dial indicator to manually turn the actuator in open direction (couterclockwise).
(b)
Measure the torque. When the torque increases by 15-20 pound-inches, turn the actuator 1/2 turn in the clockwise direction.
NOTE: This is when the internal stops are against each other.
____
(c) Turn the torque wrench in the clockwise direction two additional turns.
NOTE: This is the rigged open position.
____
H. Install the Side Cargo Door
NOTE: The airplane must be on its gear and at an empty operating weight
____ to make sure the door installation is correct. This procedure is written for a serviceable door. Thus, the preliminary adjustment data does not have details. For preliminary adjustment data refer to 52-32-00/501.
S 494-013
(1) Connect the sling to the door.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
52-32-01
ALL ú ú 02 Page 408 ú Feb 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
INTERNAL HOOK HOOK INTERNAL
-1 0 1 2 3 113 114115116
TURNS OF MANUAL DRIVE TORQUE WRENCH
HOOK ACTUATOR DIAGRAM
____THE TURNS ARE THE NUMBER OF TURNS OF A TORQUE WRENCH IN THE MANUAL DRIVE.
NOTE: COUNT THE TURNS AFTER YOU FIND THE INTERNAL STOPS.
USE A TORQUE WRENCH TO FIND THE
INTERNAL STOPS OF THE ACTUATOR AS FOLLOWS:
1.
MEASURE THE TORQUE (M) WHILE YOU MANUALLY TURN THE ACTUATOR.
(THE TORQUE SHOULD BE CONSTANT WITHIN |2 POUND-INCHES).
2.
TURN THE ACTUATOR UNTIL THE TORQUE INCREASES BY 15-20 POUND-INCHES (M + 15).
3.
TURN THE ACTUATOR 1/2-TURN IN THE OPPOSITE DIRECTION FROM THE (M + 15) POINT.
4.
THE INTERNAL STOPS ARE AT THIS POINT.
INITIAL SWITCH ADJUSTMENT ONLY. SEE THE TEXT FOR THE FINAL ADJUSTMENT.
Latch and Hook Actuator Internal Stop and Rig Positions Figure 403 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
52-32-01
ALL ú ú 02 Page 409 ú Feb 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
EXTERNAL STOPS EXTERNAL
CONTACTED AND STOPS
RIGGED CLOSED CONTACTED
(M + 15)
MANUAL DRIVE CRANKING TORQUE
TURNS OF MANUAL DRIVE TORQUE WRENCH
LATCH ACTUATOR DIAGRAM
____ THE TURNS ARE THE NUMBER OF TURNS OF A TORQUE WRENCH IN THE MANUAL DRIVE.
NOTE:
COUNT THE TURNS AFTER YOU FIND THE INTERNAL STOPS.
Latch and Hook Actuator Internal Stop and Rig Positions
Figure 403 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
52-32-01
ALL ú ú 02 Page 410 ú Jun 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(2) S 824-047Move the door to its position with the hinges on the door aligned with the hinges on the fuselage (Fig. 402).
(3) S 424-014Install the hinge pins (3) (Fig. 401): (a) Make sure the hinges are aligned.
NOTE:____ Make sure the end hinge pins are not preloaded when you install the door.
(b) (c) (d) (e) (f) (g) Use your hand to lubricate the hinge pins with grease.Install the 18-inch hinge pin (6) through the forward hinge.Install the forward pin (9 inches long) (5).Install the seven hinge pins (7) at the center through the aft hinge segment.Install the last (26-inch) pin (8) in the aft hinge segments.Install the hinge end caps (fairings) (9, 10) at each end.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：747-400 AMM 飞机维护手册 舱门 DOORS 2(119)
