THE WHEEL WELL
Inboard Door Wear Limits of the Wheel Well for the Body Landing Gear
Figure 601 (Sheet 1)
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747-400
MAINTENANCE MANUAL
OUTBOARD OUTBOARD DOOR HINGE DOOR HINGE
INBOARD DOOR HINGE 2. (8 LOCATIONS) BEARING FLANGE DOOR HINGE INBOARD
4. BUSHING/BOLT ROD LINKAGE
Inboard Door Wear Limits of the Wheel Well for the Body Landing Gear
Figure 601 (Sheet 2)
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747-400
MAINTENANCE MANUAL
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS PART REPLACE WORN REPAIR WORN PART INSTR REPAIR
DIAMETER WEAR PER-MITTED DIM. 6 DIA MAX ANCE CLEAR-
MIN MAX
1 BUSHING ID 0.3140 0.3180 0.3320 0.020 1
BOLT OD 0.3115 0.3120 0.2940 X
2 BEARING 2 0.030 1
3 BUSHING ID 0.4375 0.4390 0.4455 0.010 3
BUSHING OD 0.4345 0.4355 0.4275 X
4 BUSHING ID 0.2500 0.2515 0.2695 0.020 4
BOLT OD 0.2490 0.2495 0.2300 X
5 BEARING ID 0.2495 0.2500 0.2695 OR 0.020 5 X
BOLT OD 0.2490 0.2495 0.2295 X
GET BUSHING. INSTALL BEARING PER 20-11-01 WITH TOUCH FIT OF 0.0004-0.0024 INCH.
MINIMUM FLANGE THICKNESS FOR FLANGED BEARINGS.
GET BUSHING. INSTALL BUSHING PER 20-11-01 WITH TOUCH FIT OF 0.0004-0.0017 INCH.
MAXIMUM OVERSIZE BUSHING AND HOLE IN FITTING IS 0.0625 INCH, IF IT IS NECESSARY. GET BUSHING. INSTALL BUSHING PER 20-11-01 WITH TOUCH FIT OF 0.0004-0.0015 INCH. MAXIMUM OVERSIZE BUSHING AND HOLE IN FITTING IS 0.0625 INCH, IF IT IS NECESSARY.
0.010 INCH BETWEEN BALL AND RACE.
YOU CAN HAVE MORE THAN THE LIMITS AS SHOWN IF YOU DO NOT HAVE MORE THAN THE MAXIMUM CLEARANCE.
Inboard Door Wear Limits of the Wheel For the Well Body Landing Gear
Figure 601 (Sheet 3)
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747-400 MAINTENANCE MANUAL
BODY GEAR WHEEL WELL OUTBOARD DOOR - REMOVAL/INSTALLATION
_________________________________________________________
1. General
_______
A. This procedure has two tasks:
(1)
The removal of the outboard door of the wheel well for the body landing gear (referred to as the outboard door).
(2)
The installation of the outboard door.
B.
The outboard door is attached to the longeron box structure with a hinge. A linkage rod connects the door to the hydraulic actuator beam to give door movement and control. The wheel well inboard door is attached to the outboard door. The safety bar is attached to the inside of the outboard door.
TASK 32-14-02-004-001
2. Body Gear Wheel Well Outboard Door Removal (Fig. 401)
__________________________________________
A. Special Tools and Equipment
(1)
OHME65B10910 - Sling Assembly, WLG and BLG Doors
B.
References
(1)
09-11-00/201, Towing
(2)
32-00-30/201, Landing Gear Door Locks
(3)
32-14-01/401, Body Gear Wheel Well Inboard Door
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