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(c) TORQUE the plug to between 57 and 63 lbf.in (0.64 and 0.71 m.daN).
(d) Wirelock the plugs with lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8001) or lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8002).
(e) Install the borescope access blanking plate (10) using the two screws (20).
(4) Install the stage 1 through 5 borescope plugs (S2 through S6) as follows:
(a) 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.
(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).
(5) Install the stage 6, 7 and 8 borescope plugs (S7, S8 and S9) 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).
(6) Remove the tools used to rotate the core as follows:
NOTE : If the breaker bar is installed, see steps (a) and (b). If the
____
drive motor is installed, see steps (c) and (d).
(a) Remove the 0.75 in. square drive socket and 2ft. long breaker bar from the handcranking drive pad.
(b) Install the handcranking drive pad cover (Ref. TASK 72-63-00-400-002).
(c) Remove the MOTOR, DRIVE - CORE ENGINE ROTATION (856A1488P01 or P02) from the starter pad of the AGB.
(d) Install the starter (Ref. TASK 80-11-10-400-002).
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________ Subtask 72-31-00-410-057
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the thrust reverser doors (Ref. TASK 78-36-00-410-040). FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 72-31-00-440-052
B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 72-31-00-410-058
C. Close Access
(1) Close the fan cowls (Ref. TASK 71-13-00-410-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR.
(2) Remove the warning notice(s).
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HPC ROTOR ASSEMBLY - REPAIRS
____________________________
TASK 72-31-00-300-002
Repair of Broken Borescope Plug
1. Reason for the Job
__________________
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