(2)
Vernier Caliper
B.
References
(1)
27-51-07/401, Inboard Foreflap
C.
Access
(1)
Location Zone 309, 409 Wing Trailing Edge Inboard Flap and Spoilers
D.
Procedure
S 026-002
(1)
Do this task: "Inboard Foreflap Removal" (Ref 27-51-07/401).
S 226-003
(2)
Measure the parts of the toggle on the inboard foreflap (Fig. 601):
(a)
Remove the parts.
(b)
Use a micrometer or a vernier caliper to measure the parts.
(c)
Compare the dimensions you measured with the permitted dimensions shown in Fig. 601.
(d)
Replace the parts that are not in the tolerance.
(e)
Install the parts.
(3)
Do this task: "Inboard Foreflap Installation" (Ref 27-51-07/401).
S 426-004
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A 737-300/400/500MAINTENANCE MANUAL
4. BUSHING/ 3. BUSHING BEARING BEARING
A-A
B-B
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS REPLACE PART WORN REPAIR WORN PART REPAIR INSTR.
DIAMETER PERMITTED WEAR DIM. CLEAR-ANCE MAX DIA
MIN MAX
1 BUSHING ID 0.5030 0.5040 0.5085 0.0072 X
BUSHING OD 0.5006 0.5013 0.4958 X
2 BUSHING ID 0.3750 0.3765 0.3800 0.0050 X
BEARING OD 0.3740 0.3750 0.3700 X
3 BUSHING ID 0.3750 0.3765 0.3800 0.0050 X
BEARING OD 0.3740 0.3750 0.3700 X
4 BUSHING ID 0.3750 0.3765 0.3800 0.0050 X
BEARING OD 0.3740 0.3750 0.3700 X
Inboard Foreflap Wear Limits
Figure 601
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
INBOARD AFTFLAP - REMOVAL/INSTALLATION
______________________________________
1. General_______
A. There are two tasks in this procedure. There is a task for the removal and a task for the installation of an inboard aftflap.
TASK 27-51-11-004-001
2. Aftflap Removal_______________
A. References
(1)
27-51-00/201, Trailing Edge Flap Systems
B.
Access
(1)
Location Zone 309, 409 Wing Trailing Edge Inboard Flap and Spoilers
C.
Procedure
(1) S 864-002Do this task: "Hydraulic System B Pressurization" (Ref 27-51-00/201).
(2) S 864-003Put the flap control lever in the 40-unit detent.
(3) S 864-004Do this task: "Hydraulic System B Depressurization" (Ref 27-51-00/201).
(4) S 014-005Remove the trailing edge from the midflap (Fig. 401).
(5) S 024-006Remove the aftflap: (a) Remove the bottom flight rollers from the aftflap carriages. (b) Disconnect the pushrods from the leading edge of the aftflap. (c) Move the aftflap rearward. (d) Lift the trailing edge of the aftflap and remove it from the flap tracks.
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