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NOTE: This split bracket (10) is at the 1:30 o'clock position.
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1) Tighten the bolts (1) to 35-40 pound-inches (4.1-4.5 newton-meters).
(h) Install the screw (4), threads lubricated with engine oil, washer (5), and nut (6) that attaches the wire bundle clamp to the split bracket (10).
NOTE: This split bracket is at the 1:30 o'clock position.
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1) Tighten the screw (4) to 25-35 pound-inches (2.8-4.0 newton-meter).
(i) Install the screw (4), threads lubricated with engine oil, washer (5), and nut (6) that attaches the wire bundle clamps to the bracket (38).
NOTE: This bracket (38) is at the 1:45 o'clock position.
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1) Tighten the screw (4) to 25-35 pound-inches (2.8-4.0 newton-meters).
(j) Install the screw (4), threads lubricated with engine oil, washers (5), and nut (6) that attaches the wire bundle clamps and the three ground wires to the split bracket (37).
NOTE: This split bracket (37) is at the 1:45 o'clock position.
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1) Tighten the screws (4) to 25-35 pound-inches (2.8-4.0 newton-meters).
(k) Install the screw (4), threads lubricated with engine oil, washer (5), and nut (6) that attaches the wire bundle clamp to the bracket (27).
NOTE: This bracket (27) is at the 2:00 o'clock position.
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1) Tighten the screw (4) to 25-35 pound-inches (2.8-4.0 newton-meters).
(l) Install the bolt (1), threads lubricated with engine oil, and nut (2) that attaches the wire bundle clamp to the bracket (39).
NOTE: This bracket (39) is at the 2:30 o'clock position.
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1) Tighten the bolt (1) to 36-40 pound-inches (4.1-4.5 newton-meters).
S 414-030-N00
(7) Install the electronic engine control (EEC) (AMM 73-21-04/401).
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ALL ú ú N02 Page 421 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(8) S 414-031-N00Install the engine accelerometer (AMM 77-31-01/401).
(9) S 414-032-N00Install the 1st-stage fan blades (AMM 72-31-02/401).
S 414-033-N00
(10)
Install the inlet cowl (AMM 71-11-01/401).
S 414-034-N00
(11)
Close the fan cowl panels (AMM 71-11-04/201).
S 794-035-N00
(12)
Do a test of the Fan Case Assembly that is shown in the Power Plant Test Reference Table (AMM 71-00-00/501).
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72-33-01
ALL ú ú N02 Page 422 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FRONT FAN CASE - INSPECTION/CHECK
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1. General
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A. This procedure gives the instructions for the inspection of the fan case rubstrips (front fan case duct segments) for worn areas, damage, cracks, and holes.
B. This procedure also gives the continue-in-service and flyback limits.
C. The front fan case holds the inlet cowl and gives containment of the fan blades.
D. You must go into the inlet cowl to get access to the front fan case for an inspection.
TASK 72-33-01-206-001-N00
2. Examine the Fan Case Rubstrips
______________________________
A. Special Tools and Equipment
(1) PWA 29156 - Gage, Pratt & Whitney, Commercial Products Division, 400 Main Street, East Hartford, CT 06108
NOTE: This gage is an alternative to the standard dial
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indicator depth gage.
B. Standard Tools and Equipment
(1) Gage - Depth, Standard Dial Indicator, with tapered contact point
NOTE: This depth gage is an alternative to the PWA 29156 gage.
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(2)
Mat - Protective, Rubber Manufacturer's Association, Grade SC43, neoprene sponge, 1 inch thick, 3 x 4 feet with warning streamers attached (three required)
C.
References
(1)
AMM 72-33-01/401, Front Fan Case
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本文链接地址：747-400 AMM 飞机维护手册 发动机 ENGINE 2(6)
