32-13-03
ALL ú ú 01 Page 602 ú Feb 10/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
NO. INDEX PART NAME DIM. DESIGN LIMITS WEAR LIMITS WORN PART REPLACE PART WORN REPAIR INSTR. REPAIR
DIAMETER DIM. ALLOWED WEAR 7 MAX ANCE CLEAR-DIAM
MIN MAX
1 BOLT 2 6.2924 6.2974 6.3704 0.0674 1
BUSHING 3 6.2400 6.2850 6.2250 1
2 BUSHING ID 2.8750 2.8760 2.8805 0.0064 1
BOLT OD 2.8730 2.8740 2.8695 1
3 BUSHING 4 2.998 3.010 3.024 0.038 1
BUSHING 3 2.986 2.998 2.967 1
4 BUSHING ID 2.875 2.876 2.8805 0.0065 1
BOLT OD 2.873 2.874 2.8695 1
5 BUSHING ID 2.8750 2.8760 2.8805 0.0064 1
BOLT OD 2.8730 2.8740 2.8695 1
6 BUSHING 4 2.5600 2.567 2.576 0.018 1
BUSHING 5 2.558 2.560 2.549 1
7 BUSHING ID 2.8750 2.8760 2.8805 0.0064 1
BOLT OD 2.8730 2.8740 2.8695 1
8 BOLT 6 6.2924 6.2974 6.3074 0.0674 1
BUSHING 3 6.2400 6.2820 6.2250 1
WORN PART IS REPAIRABLE. REFER TO OVERHAUL MANUAL FOR REPAIR INFORMATION.
SHOULDER-TO-HEAD (GRIP LENGTH) DISTANCE OF BOLT PLUS ONE-SIXTH POSSIBLE TURN BACK OF NUT.
WIDTH OVER BUSHING FLANGES
WIDTH BETWEEN BUSHING FLANGES
WIDTH OF BEARING
DISTANCE BETWEEN SHOULDER AND HEAD OF BOLT PLUS ONE-SIXTH OF TURN BACK OF NUT.
LIMITS SHOWN MAY BE EXCEEDED PROVIDED MAXIMUM CLEARANCE IS NOT EXCEEDED.
Body Gear Side Brace Wear Limits
Figure 601 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-13-03
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
BODY GEAR UPPER DRAG STRUT - REMOVAL/INSTALLATION
_________________________________________________
1. General_______
A. This subject contains two tasks:
-
The removal of the body-gear upper-drag-strut
-
The installation of the body-gear upper-drag-strut.
B.
To remove the upper drag strut, you must do these steps:
-Lift the airplane with jacks
-Remove the downlock actuator
-Sufficiently hold the upper drag strut
-
Remove the apex bolt assembly from the drag strut
-
Remove the spindle bolt assembly from the upper drag strut.
C.
To install the upper drag strut, you must do these steps:
-Prepare the lube inserts
-Put the drag strut in the correct position
-
Install the apex bolt assembly into the drag strut
-
Install the spindle bolt assembly into the upper drag strut
-
Install the downlock actuator.
TASK 32-13-04-004-001
2. Body Gear Upper Drag Strut Removal__________________________________
A. Special Tools and Equipment
(1)
20HME65B00161-1 - Sling Assembly
(2)
2MIT65B08802-1 - Body Landing Gear Bungee Restraining Tool
(3)
F70312-26 - Torque Wrench Adapter
(4)
3PRE65B00163-1 - Protective Equipment, Body Gear Drag Strut Pin (Thread Protector)
B.
Standard Tools and Equipment
(1)
Portable Hoist - 500 pound capacity
C.
Consumable Materials
(1)
D00633 Grease - BMS 3-33 (preferred)
(2)
D00013 Grease - MIL-G-23827 (optional)
D.
References
(1)
AMM 07-11-01/201, Jacking Airplane
(2)
AMM 09-11-00/201, Towing
(3)
AMM 29-11-00/201, Main Hydraulic Supply System
(4)
AMM 32-00-30/201, Landing Gear Door Locks
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