S 434-008
(3)
If it is necessary, install the nose wheel (AMM 32-45-02/401).
S 584-009
(4)
Remove the jack from the nose gear.
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A
747-400 MAINTENANCE MANUAL
TOW FITTING - INSPECTION/CHECK
______________________________
1. General_______
A. This procedure contains a task to examine the tow fitting pin and the bushing for worn parts.
B. To do this procedure, you must remove the tow fitting.
TASK 32-21-08-206-001
2. The Tow Fitting Pin and the Bushings Inspection (Fig. 601)_______________________________________________
A. Standard Tools and Equipment
(1)
Micrometers, inside and outside measuring.
B.
References
(1)
32-21-08/401, Tow Fitting
(2)
IPC 32-21-08 Fig. 1
C.
Access
(1)
Location Zone
715 Nose Landing Gear
D.
Procedure
S 016-002
(1)
Do this task: "Removal of the Tow Fitting" (Ref 32-21-08/401).
S 226-003
(2)
Examine the tow fitting pin and the bushings for worn parts.
(a)
Measure the parts at the locations shown in figure 601.
(b)
Compare the measured dimensions to the wear limits in figure
601.
(c)
If the part is not in tolerance, replace the part if you cannot repair it.
(3)
Do this task: "Installation of the Tow Fitting" (Ref 32-21-08/401).
S 416-006
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747-400
MAINTENANCE MANUAL
SEE A
FWD
2. PIN
1. BUSHING (TYPICAL 4 PLACES)
3. BUSHING
A
Tow Fitting Wear Limits
Figure 601 (Sheet 1)
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747-400
MAINTENANCE MANUAL
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS REPLACE PART WORN REPAIR WORN PART INSTR REPAIR
DIAMETER MITTED WEAR DIM. PER- MAX CLEAR-ANCE DIA
MIN MAX
1 BUSHING ID 1.3750 1.3800 1.4380 X
2 PIN OD 1.7480 1.7490 1.7490 0.0110 X 1
3 BUSHING ID 1.755 1.757 1.7590 0.0110 X
PART IS REPAIRABLE. SEE OVERHAUL MANUAL FOR REPAIR INSTRUCTIONS.
Tow Fitting Wear Limits
Figure 601 (Sheet 2)
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747-400 MAINTENANCE MANUAL
NOSE LANDING GEAR AXLE SLEEVE - REMOVAL/INSTALLATION
____________________________________________________
1. General
_______
A. This procedure has two tasks:
(1)
The removal of the axle sleeve from the axle for the nose landing gear.
(2)
The installation of the axle sleeve on the axle for the nose landing gear.
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