LINK PIN 2. BUSHING/PIN (UPPER) UPPER OR LOWER
(4 LOCATIONS) TORSION LINK
10. (4 LOCATIONS) BUSHING/PIN (LOWER) A-A
7. BUSHING/PIN
B-B
Wear Limits of the Torsion Links for the Nose Landing Gear
Figure 602 (Sheet 2)
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MAINTENANCE MANUAL
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS REPLACE PART WORN REPAIR WORN PART INSTR REPAIR
DIAMETER WEAR ALLOWED DIM. 1 DIA MAX CLEAR-ANCE
MIN MAX
1 BUSHING ID 2.2500 2.2520 2.2560 0.0070 4 3
PIN OD 2.2480 2.2490 2.2450 X 3
2 BUSHING ID 2.2500 2.2520 2.2550 0.0070 5 3
PIN OD 2.2480 2.2490 2.2450 X 3
3 BUSHINGS 6 10.002 10.004 10.009 0.012 4 3
BUSHINGS 7 9.997 9.999 9.992 5 3
4 PIN 8 14.502 14.517 14.554 0.074 9 3
BUSHING 7 14.480 14.500 14.443 5 3
5 BUSHING ID 1.2500 1.2510 1.2555 0.0075 5 3
PIN OD 1.2480 1.2490 1.2435 X 3
6 BUSHING ID 1.2500 1.2510 1.2555 0.0075 10 3
PIN OD 1.2480 1.2490 1.2435 X 3
7 BUSHING ID 1.2500 1.2510 1.2555 0.0075 10 3
PIN OD 1.2480 1.2490 1.2435 X 3
8 BUSHINGS 11 2.2510 2.2520 2.2550 0.006 10 3
BUSHINGS 12 2.2490 2.2500 2.2460 5 3
9 PIN ID 0.3200 0.3250 0.3450 0.045 X
PIN OD 0.3095 0.3120 0.3000 X
10 BUSHING ID 2.2500 2.2520 2.2560 0.0070 10 3
PIN OD 2.2480 2.2490 2.2450 X 3
Wear Limits of the Torsion Links For the Nose Landing Gear
Figure 602 (Sheet 3)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-21-03
ALL ú ú 01 Page 610 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 1 DIM. ALLOWED WEAR DIA MAX ANCE CLEAR-
MIN MAX
11 BUSHING 6 10.0000 10.0040 10.0090 0.012 10 3
BUSHING 2 9.9970 9.9990 9.9920 13 3
12 PIN 8 14.0020 14.0170 14.0300 0.050 9 3
BUSHING 7 13.9800 14.000 13.9670 10 3
12 PIN 8 14.502 14.517 14.554 0.074 9 3
BUSHING 7 14.480 14.500 14.443 10 3
YOU CAN HAVE MORE THAN THE LIMITS SHOWN IF YOU DO NOT HAVE MORE THAN THE MAXIMUM CLEARANCE.
WIDTH OVER FLANGES OF BUSHINGS IN INNER CYLINDER.
WORN PART OR ASSEMBLY IS REPAIRABLE. REFER TO OVERHAUL MANUAL FOR REPAIR INFORMATION.
REPLACE FORWARD STEERING COLLAR.
REPLACE UPPER TORSION LINK.
DISTANCE BETWEEN FLANGE FACES OF BUSHINGS IN TORSION LINK.
WIDTH OVER FLANGES OF BUSHINGS.
LENGTH OF PIN SHOULDER TO SHOULDER PLUS POSSIBLE TURNBACK OF NUT.
REPLACE WASHER IF IT IS NECESSARY.
REPLACE LOWER TORSION LINK.
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