(2)
The inspection for the fit of the universal and the truckbeam pin assemblies.
B.
It is necessary to remove the universal and the pin assemblies to do the inspection and check.
TASK 32-11-22-206-001
2. Worn Area Examination for the Truck Positioning Link (Fig. 601)____________________________________________________
A. References
(1)
32-11-22/401, Wing Gear Truck Positioning Link
(2)
IPC 32-11-22 Fig. 1
B.
Access
(1)
Location Zone
735 Wing Landing Gear, LH
745 Wing Landing Gear, RH
C.
Procedure
S 026-002
(1) Remove the universal and the pin assemblies (Ref 32-11-22/401).
LOWER SIDE STRUT
SHOCK STRUT TRUCK POSITIONING SEE A ACTUATOR
UPPER
POSITIONING MECHANISM TORSION LINK (BELLCRANK)
FWD INBD
BRAKE EQUALIZER ROD POSITIONING LINK
LOWER
TRUCK TORSION
BEAM LINK
Wing Gear Truck Positioning Link Wear Limits Figure 601 (Sheet 1)
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32-11-22
ALL ú ú 01 Page 601 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
SHOCK STRUT
BELLCRANK
DRAG POSITIONING
BRACE TORSION MECHANISM
LINKS
1
B
POSITIONING A
LINK
B
A
A
1.
BUSHING BOLT
2.
BUSHING/PIN
BUSHING/BUSHING
2
BUSHING/BOLT 2
TRUCK BEAM TRUCK BEAM
UNIVERSAL FITTING
A-A
5. BUSHING/ BUSHING
POSITIONING LINK
UNIVERSAL PIN
4. BUSHING/ FITTING
3. BUSHING/PIN POSITIONING
1 FOR BELLCRANK-TO-POSITIONING LINK
LINK INSPECTION/CHECK REFER TO 32-11-21/601
6. BUSHING/ 2 FOR UNIVERSAL-TO-TRUCK BUSHING BEAM INSPECTION/CHECK REFER
B-B
TO 32-11-11/601
Wing Gear Positioning Link Wear LimitsFigure 601 (Sheet 2)
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32-11-22
ALL ú ú 01 Page 602 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 DIM. WEAR PER-MITTED 6 ANCE MAX CLEAR-DIAM
MIN MAX
1 BUSHING ID 1.2500 1.2520 1.2542 0.0072 X
BOLT OD 1.2470 1.2490 1.2448 X 1
2 PIN 2 6.269 6.2740 6.3190 X
3 BUSHING ID 1.2500 1.2510 1.2532 0.0052 X
PIN OD 1.2480 1.2490 1.2458 X 1
4 BUSHING ID 1.2500 1.2520 1.2550 0.018 X
PIN OD 1.2480 1.2490 1.240 X 1
5 BUSHING 4 1.628 1.632 1.641 0.018 X
BUSHING 3 1.623 1.625 1.614 X
6 BUSHING 5 2.893 2.907 2.917 0.039 X
BUSHING 3 2.878 2.892 2.868 X
WORN PART IS REPAIRABLE. REFER TO OVERHAUL MANUAL FOR REPAIR INFORMATION GRIP LENGTH OF PIN PLUS POSSIBLE 1/6-TURN BACKOFF NUT DISTANCE ACROSS BUSHING FLANGES DISTANCE BETWEEN BUSHING FLANGES DISTANCE BETWEEN END CAPS, PLUS POSSIBLE 1/6-TURN BACKOFF NUT LIMITS SHOWN MAY BE EXCEEDED PROVIDED MAXIMUM CLEARANCE IS NOT EXCEEDED
Wing Gear Positioning Link Wear Limits
Figure 601 (Sheet 3)
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