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A
747-400
MAINTENANCE MANUAL
1. BUSHING/BOLT BOLT
UPPER JURY STRUT
3. BUSHING/BOLT (6 PLACES) JURY STRUT SPINDLE
A-A
B-B
Main Gear Upper Jury Strut Wear LimitsFigure 601 (Sheet 2)
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747-400
MAINTENANCE MANUAL
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS REPLACE PART WORN REPAIR WORN PART REPAIR INSTR.
DIAMETER DIM. WEAR PER-MITTED 6 ANCE DIAM MAX CLEAR-
MIN MAX
1 BOLT 1 3.381 3.404 3.444 0.080 X 4
BUSHING 2 3.364 3.380 3.324 X 5
2 BUSHING 3 1.624 1.632 1.652 0.040 X 4
BUSHING 2 1.612 1.624 1.592 X 4
3 BUSHING ID 1.000 1.0010 1.0055 0.0065 X 4
BOLT OD 0.998 0.999 0.996 X 5
4 BOLT 1 7.190 7.215 7.237 0.060 X 4
BUSHING 2 7.177 7.189 7.155 X 5
5 BUSHING 3 5.437 5.449 5.474 0.050 X 4
BUSHING 2 5.424 5.436 5.399 X 4
6 BUSHING ID 1.2500 1.2510 1.2550 0.0067 X 4
BOLT OD 1.2480 1.2490 1.2460 X 5
7 BUSHING ID 1.2500 1.2515 1.2550 0.0067 X 4
BOLT OD 1.2480 1.2490 1.2460 X 5
DISTANCE BETWEEN HEAD AND SHOULDER OF BOLT, LESS THICKNESS OF WASHER, PLUS POSSIBLE ONE-SIXTH TURN BACKOFF OF NUT DISTANCE OVER FLANGES OF BUSHINGS DISTANCE BETWEEN FLANGES OF BUSHINGS OBTAIN REPLACEMENT BUSHING. INSTALL BUSHING PER 20-11-01 WITH INTERFERENCE FIT WORN PART IS REPAIRABLE. SEE OVERHAUL MANUAL FOR REPAIR INSTRUCTIONS LIMITS SHOWN MAY BE EXCEEDED PROVIDED MAXIMUM CLEARANCE IS NOT EXCEEDED
Wing Gear Upper Jury Strut Wear Limits
Figure 601 (Sheet 3)
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747-400 MAINTENANCE MANUAL
WING GEAR JURY STRUT SPINDLE - REMOVAL/INSTALLATION
___________________________________________________
1. General
_______
A. This procedure has two tasks:
(1)
The removal of the jury strut spindle for the wing landing gear (referred to as the jury strut spindle).
(2)
The installation of the jury strut spindle.
B.
The jury strut spindle is attached to the inboard side of the shock strut at the outboard end of the upper jury strut. The removal and the installation procedures are the same for the two sides.
TASK 32-11-09-004-001
2. Jury Strut Spindle Removal (Fig. 401)
__________________________
A. Special Tools and Equipment
(1)
2MIT65B08803-1 - Wing Landing Gear Bungee Restraining Tool
(2)
6PRE65B00161-1 - Wing Gear Jury Strut Spindle Protective Equipment (Thread Protector)
(3)
7PRE65B00161-1 - Wing Gear Jury Strut Spindle Bolt Protective Equipment (Thread Protector)
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