(2)
Vernier Caliper
B.
References
(1)
AMM 06-09-06/201, Stabilizer and Elevator Access Doors and Panels
(2)
AMM 27-31-08/201, Outboard Elevator Power Control Package
C.
Access
(1)
Location Zone 334 Horizontal Stabilizer Rear Spar to Trailing Edge, LH 344 Horizontal Stabilizer Rear Spar to Trailing Edge, RH
D.
Procedure
S 026-002
(1)
Do this task: "Outboard Elevator Power Control Package Removal" (AMM 27-31-08/201) to disassemble the PCP actuator to the attachment fitting.
S 226-003
(2)
Measure the parts, which connect the PCP actuator to the attachment fitting, for worn areas:
(a)
Remove the parts.
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MAINTENANCE MANUAL
INBD A-A
Outboard Elevator Power Control Package Wear LimitsFigure 601 (Sheet 1)
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MAINTENANCE MANUAL
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS WORN PART REPLACE PART WORN REPAIR INSTR. REPAIR
DIAMETER WEAR DIM. PER-MITTED MAX ANCE CLEAR-DIAM
MIN MAX
1 BEARING ID 0.2497 0.2500 0.2500 0.0019 X 42
BOLT OD 0.2485 0.2495 0.2481 X 3
2 CLEVIS ID 0.2495 0.2505 0.2510 0.0026 X
BOLT OD 0.2485 0.2495 0.2481 X 3
3 BUSHING ID 1.4396 1.4401 1.4411 0.0029 X
BUSHING OD 1.4382 1.4388 1.4372 X
4 BUSHING ID 1.2494 1.2500 1.2510 0.0025 X
BOLT OD 1.2485 1.2493 1.2475 X
5 BEARING ID 1.2495 1.2500 1.2510 0.0025 1 2
BOLT OD 1.2485 1.2493 1.2475 X
6 BUSHING ID 1.5000 1.5005 1.5015 0.0029 X
BUSHING OD 1.4986 1.4992 1.4976 X
7 BUSHING ID 1.2494 1.2500 1.2510 0.0025 X 5
BOLT OD 1.2485 1.2493 1.2475 X 5
REPLACE THE BEARING WHEN THE TEFLON LINER HAS WORN 0.010 MAXIMUM RADIALLY.
THE LIMITS SHOWN ARE BEFORE THE BEARING RETENTION. NO CLEARANCE IS PERMITTED AFTER YOU SWAGE.
USE A 69-38919 SLEEVE OR AN EQUIVALENT WHEN YOU REPLACE THE BEARING.
THIS IS A CLAMP-UP JOINT. THERE IS NO PLAY AFTER YOU TIGHTEN THE BOLT.
REPLACE THE BEARING IF IT DOES NOT TURN FREELY.
THE SURFACE IS BONDED. IF THE BOND BECOMES LOOSE, BOND THE SURFACES PER BMS 5-29.
Outboard Elevator Power Control Package Wear Limits
Figure 601 (Sheet 2)
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747-400 MAINTENANCE MANUAL
(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) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 3(81)
