B-B
Wing Gear Lower Side Strut Wear Limits
Figure 601 (Sheet 2)
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A
747-400
MAINTENANCE MANUAL
NO. INDEX PART NAME DIM. DESIGN LIMITS WEAR LIMITS WORN PART REPLACE PART WORN REPAIR INSTR. REPAIR
DIAMETER MITTED PER-WEAR DIM. 7 ANCE MAX CLEAR-DIAM
MIN MAX
1 BUSHING ID 2.375 2.378 2.382 0.0080 X
BOLT OD 2.373 2.374 2.370 X
2 BUSHING 2 6.700 6.712 6.733 0.042 X
BUSHING 1 6.691 6.700 6.670 X
3 BUSHING 2 9.384 9.394 9.502 0.118 X
BUSHING 1 9.335 9.384 9.276 X
4 BOLT 5 2.250 2.272 2.280 0.050 X
WASHER 6 2.230 2.266 2.222 X
5 BUSHING 4 1.000 1.014 1.036 0.046 X
BUSHING 1 0.990 1.000 0.968 X
6 BUSHING ID 1.000 1.001 1.005 0.006 X
BOLT OD 0.998 0.999 0.996 X
7 SPINDLE 3 3.260 3.275 3.3035 0.0416 X
BOLT 1 3.237 3.262 3.2335 X
8 BUSHING ID 1.500 1.501 1.5055 0.0065 X
SPINDLE OD 1.498 1.499 1.4955 X
WIDTH OVER FLANGES OF BUSHINGS
WIDTH BETWEEN FLANGES OF BUSHINGS DISTANCE BETWEEN SHOULDER AND HEAD OF FITTING WIDTH BETWEEN FLANGES OF BUSHINGS IN DOWNLOCK ACTUATOR DISTANCE BETWEEN SHOULDER AND HEAD OF BOLT PLUS POSSIBLE ONE-SIXTH TURN BACKOFF OF NUT WIDTH OVER BUSHINGS IN HEAD END OF DOWNLOCK ACTUATOR LIMITS SHOWN MAY BE EXCEEDED PROVIDED MAXIMUM CLEARANCE IS NOT EXCEEDED
Wing Gear Lower Side Strut Wear Limits
Figure 601 (Sheet 3)
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747-400 MAINTENANCE MANUAL
WING GEAR SIDE STRUT LOWER SPINDLE - MAINTENANCE PRACTICES
__________________________________________________________
1. General
_______
A. This procedure has three tasks:
(1)
The removal of the lower spindle of the side strut for the wing landing gear (referred to as the lower spindle).
(2)
The installation of the lower spindle
(3)
The inspection of the lower spindle.
B.
The lower spindle is on the bottom end of the lower side strut. It is attached to the inboard side of the shock strut adjacent to the upper torsion link.
TASK 32-11-07-002-001
2. Side Strut Lower Spindle Removal (Fig. 201)
________________________________
A. 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
(5)
AIPC 32-11-07 Fig. 2
(6)
AIPC 32-11-23 Fig. 1
B.
Access
(1)
Location Zone
735 Wing Landing Gear, LH
745 Wing Landing Gear, RH
C.
Procedure
S 862-050
WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Install the ground locks in all landing gear (AMM 09-11-00/201).
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