747-400 MAINTENANCE MANUAL
NOSE WHEEL WELL FORWARD DOOR OPERATOR RODS - INSPECTION/CHECK
_____________________________________________________________
1. General_______
A. This procedure contains a task to examine the attach points of the door operator rods at the forward of the nose for worn areas.
TASK 32-22-03-206-001
2. Forward Nose Wheel Well Door Operator Rods Inspection (Fig. 601)_____________________________________________________
A. References
(1)
20-11-01/401, Bushings and Bearings
(2)
32-22-03/401, Nose Wheel Well Forward Door Operator Rods
(3)
IPC 32-22-03 Fig. 2
B.
Access
(1)
Location Zone
711 Nose Landing Gear Door, Forward, LH
712 Nose Landing Gear Door, Forward, RH
C.
Procedure
S 026-003
(1)
Do this task: "Nose Wheel Well Forward Door Operator Rods Removal" (Ref 32-22-03/401).
S 226-004
(2)
Examine the door operator rods at the forward of the nose wheel well for worn areas.
(a)
Measure the parts at the locations shown in figure 601.
(b)
Compare the measure dimensions to the wear limits in figure
601.
(c)
If the part is not in tolerance, replace the part if you cannot repair it.
S 426-005
(3) Do this task: "Nose Wheel Well Forward Door Operator Rods Installation" (Ref 32-22-03/401).
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A
747-400
MAINTENANCE MANUAL
FWD
SEE A
FORWARD DOOR ACTUATOR
BELLCRANK
SEE B
SEE C
BELLCRANK
SUPPORT
FITTING
FORWARD DOOR OPERATOR ROD
SEE C SHOWN WITH DOORS OPEN
A
Nose Wheel Well Forward Door Operator Rods Wear Limits Figure 601 (Sheet 1)
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A
747-400
MAINTENANCE MANUAL
OPERATOR ROD (2 PLACES)
8. BEARING/BOLT
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS REPLACE PART WORN REPAIR WORN PART REPAIR INSTR.
DIAMETER WEAR ALLOWED DIM. *[4] DIAM CLEAR-ANCE MAX
MIN MAX
1 BUSHING ID 0.5000 0.5015 0.5030 0.0055 X *[1]
BOLT OD 0.4985 0.4995 0.4975 X
2 BUSHING ID 0.5015 0.5030 0.5035 0.0055 X
BOLT OD 0.4985 0.4995 0.4980 X
3 BUSHING ID 0.7500 0.7515 0.7530 0.0060 X *[2]
BUSHING ID 0.7480 0.7490 0.7470 X
4 BEARING ID 0.4995 0.5000 0.5020 0.0055 X
BOLT OD 0.4985 0.4995 0.4965 X
5 BUSHING ID 0.5015 0.5030 0.5035 0.0055 X
BOLT OD 0.4985 0.4995 0.4980 X
Nose Wheel Well Forward Door Operator Rods Wear Limits
Figure 601 (Sheet 2)
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A
747-400
MAINTENANCE MANUAL
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS REPLACE PART WORN REPAIR WORN PART REPAIR INSTR.
DIAMETER WEAR ALLOWED DIM. *[4] DIAM CLEAR-ANCE MAX
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