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747-400
MAINTENANCE MANUAL
NO. INDEX PART NAME DIM. DESIGN LIMITS WEAR LIMITS WORN PART REPLACE PART WORN REPAIR INSTR REPAIR
DIAMETER PER-MITTED DIM. WEAR DIA ANCE CLEAR-MAX
MIN MAX
2 29 BUSHING ID 0.3120 0.3130 0.3170 0.0050 X
BOLT OD 0.3115 0.3120 0.3070 X
1 30 BUSHING ID 0.4370 0.4380 0.4420 0.0055 X
BUSHING OD 0.4358 0.4365 0.4315 X
2 30 BUSHING ID 0.5000 0.5006 0.5055 0.0060 X
BUSHING OD 0.4988 0.4995 0.4940 X
31 1 BUSHING ID 0.2495 0.2505 0.2545 X
BOLT OD 0.2490 0.2495 0.2445 X
31 2 BUSHING ID 0.3120 0.3130 0.3170 0.0050 X
BOLT OD 0.3115 0.3120 0.3070 X
32 1 BEARING ID 0.2495 0.2500 0.2545 X
BOLT OD 0.2490 0.2495 0.2445 X
32 2 BEARING ID 0.3120 0.3125 0.3170 X
BOLT OD 0.3115 0.3120 0.3070 X
33 1 BUSHING ID 0.2495 0.2500 0.2545 X
BOLT OD 0.2490 0.2495 0.2445 X
33 2 BUSHING ID 0.3120 0.3125 0.3170 0.0050 X
BOLT OD 0.3115 0.3120 0.3070 X
Variable Camber Flap Wear Limits
Figure 601 (Sheet 8)
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A 747-400 MAINTENANCE MANUAL
(2) S 226-003Examine the variable camber flaps (Fig. 601): (a) Remove the parts to be examined. (b) Use a micrometer to measure the dimensions of these parts. (c) Compare the part dimensions to the limit dimensions. (d) If the part dimension is out of tolerance, replace the part. (e) Install all the parts removed to do the check.
(3) S 426-004Do this task: "Variable Camber Flaps Installation" (AMM 27-81-02/401).
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747-400 MAINTENANCE MANUAL
VARIABLE CAMBER FLAPS - REPAIRS
_______________________________
1. General_______
A. This procedure contains the task to repair the variable camber flaps.
B. The variable camber flaps are the leading edge (LE) flaps No. 1E-10 and 17-26E. It is not necessary to replace a damaged variable camber flap if the damage is not more than the permitted limits.
TASK 27-81-02-308-001
2. Variable Camber Flaps Repair____________________________
A. Standard Tools and Equipment
(1)
Micrometers, to measure internally and externally
B.
References
(1)
AMM 27-81-02/401, Variable Camber Flaps
(2)
AIPC 27-81-02, Fig. 1
(3)
AIPC 27-81-02, Fig. 5
(4)
AIPC 27-81-02, Fig. 10
(5)
SRM 57-43-02, LE Flap Structure
(6)
SSM 27-81-01, SSM 27-81-02, SSM 27-81-03, SSM 27-81-04, SSM 27-81-05, SSM 27-81-06
(7)
WDM 27-51-21, WDM 27-51-22, WDM 27-81-11, WDM 27-81-12, WDM 27-81-21, WDM 27-81-22, WDM 27-81-31, WDM 27-81-32, WDM 27-81-41, WDM 27-81-42, WDM 27-81-81, WDM 27-81-82
C.
Access
(1)
Location Zone
522 Variable Camber Flap, LH
523 Variable Camber Flap, LH
524 Variable Camber Flap, LH
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