(b) Install the borescope plug in the borescope port. Tighten the borescope plug by hand.
(c) TORQUE the borescope plugs to between 57 and 63 lbf.in (0.64 and
0.71 m.daN).
(d) Wirelock the borescope plugs. Use lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8001) or lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8002).
(2) Install the stage 6, 7 and 8 borescope plugs (S6, S7 and S8) as follows:
CAUTION : MAKE SURE YOU FULLY SCREW THE INNER CAP IN. IF NOT FULLY
_______ SCREWED IN, THE INNER CAP OF THE BORESCOPE PLUG WILL DEFLECT THE COMPRESSOR REAR CASE AS THE OUTER CAP IS TIGHTENED. THIS WILL CAUSE BINDING OF THE COMPRESSOR ROTOR.
(a) Make sure the borescope port is open. Insert the 0.37 in. (9.40 mm) diameter tapered rod in the borescope port.
(b) Apply graphite grease (Material No. CP2101) or Never Seez-Pure Nickel, Special (Material No. CP2619) to the threads and pressure face of the borescope plugs.
(c) Put the plug in the correct borescope port and tighten the inner plug by hand. Use the outer plug to turn the inner plug.
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(d) TORQUE the inner plug to between 90 and 100 lbf.in (1.01 and 1.13 m.daN). Loosen half a turn and RETORQUE to between 15 and 20 lbf.in (0.16 and 0.22 m.daN) more than the running torque.
(e) Compress the plug spring and tighten the outer plug by hand.
NOTE : If the inner plug is correctly installed and the threads
____ are not damaged, you can install the outer plug by hand. If the outer plug cannot be fully installed by hand, the inner plug is not correctly installed. Remove the plug and repeat steps (c), (d) and (e).
(f) TORQUE the outer plug to between 57 and 63 lbf.in (0.64 and 0.71 m.daN).
(g) Wirelock all 3 outer plugs together with lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8001) or lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8002).
(3) Remove the tool used to rotate the core.
(a) Remove the MOTOR, DRIVE - CORE ENGINE ROTATION (856A1488P01 or P02) from the starter pad of the AGB if installed.
(b) Install the handcranking drive pad cover (Ref. TASK 72-63-00-400-002) if removed.
(c) Install the starter (Ref. TASK 80-11-10-400-002) if removed.
(4) Make sure that the work area is clean and clear of tool(s) and other items.
(5) Close the thrust reverser doors: (Ref. TASK 78-36-00-410-040) FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 72-31-00-440-055
B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
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C. Test CAUTION : DO NOT OPERATE THE ENGINE WITHOUT A CORRECTLY INSTALLED COVER
_______ ON THE N2 HANDCRANKING DRIVE PAD. IF THE COVER IS NOT INSTALLED CORRECTLY, THE ENGINE CAN HAVE OIL LEAKAGE. THIS CAN CAUSE ENGINE FAILURE.
(1) Do a minimum idle check (Ref. TASK 71-00-00-710-006) and check for leaks.
Subtask 72-31-00-410-067
D. Close Access
(1) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(2) Remove the access platform(s).
(3) Remove the warning notice(s).
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HPC FRONT STATOR ASSEMBLY - DESCRIPTION AND OPERATION
_____________________________________________________
1. General
_______ The compressor front stator consists of the front casing halves, the inlet guide vanes (IGV), and the first 5 stages of stator vanes.
2. Description
___________
(Ref. Fig. 001, 002)
A. Front Stator Casing The front case halves are made from M152 steel forging. The stage 1-5 flowpath is a machined, integral part of the case, instead of liners. The lower halves of the front casing have ports for the inspection of the internal areas. The front stator forms the load carrying structure between the fan frame and the combustion case. Bleed air is taken from the pads on the front case for the use of the customer. The bleed air is also used for high pressure turbine cooling and clearance control and for low pressure turbine cooling. 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM ENGINE 發動機 2(30)
