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D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-21-51-000-040 Removal of the Integrated Drive Generator -IDG 1(2),(4000XU) 24-21-51-400-040 Installation of the Integrated Drive Generator -IDG
1(2),(4000XU) 29-11-51-000-041 Removal of the Green Engine Pump (1030GK) 29-11-51-400-041 Installation of the Green Engine Pump (1030GK) 71-00-00-790-002 Fuel or Hydraulic or Oil Leakage Limits 71-00-00-790-006 Leak Check after the Replacement of a Sealol Seal or
a Magnetic Seal on the AGB Drive Pads of the IDG,
Hydraulic Pump, Starter and Fuel Pump 71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 73-11-10-000-003 Removal of the Fuel Pump and Filter Assembly 73-11-10-400-003 Installation of the Fuel Pump and Filter Assembly 80-11-10-000-002 Removal of the Pneumatic Starter 80-11-10-400-002 Installation of the Pneumatic Starter 72-63-00-991-307 Fig. 803 72-63-00-991-308 Fig. 804
3. Job Set-up
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Subtask 72-63-00-941-060
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
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B. Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
4. Procedure
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(Ref. Fig. 803/TASK 72-63-00-991-307, 804/TASK 72-63-00-991-308) Subtask 72-63-00-020-062
A. Preparation for the Removal of a Magnetic Seal
(1) Depending on the drive pad on which you have to replace the magnetic seal assembly, remove one of these units:
- Hydraulic pump (Ref. TASK 29-11-51-000-041)
- Fuel pump (Ref. TASK 73-11-10-000-003)
- IDG (Ref. TASK 24-21-51-000-040)
- Starter (Ref. TASK 80-11-10-000-002) Subtask 72-63-00-020-063
B. Removal of the Magnetic Seal Housing Assembly
(1) Remove the 3 nuts (110) and washers (100) which attach the magnetic seal housing assembly (120) to the pad.
(2) Remove the magnetic seal housing assembly with jackscrews P2 from the TOOL SET - JACK SCREW (856A1130G06).
(3) Remove and discard O-ring (90). Subtask 72-63-00-020-064
C. Removal of the Carbon Ring Assembly
(1) Prepare the tool set SEALOL AND MAGNETIC SEALS - R/I (856A3576G01) with handle P12, sleeve P13, and collet P15.
(2) Engage tool assembly in the AGB drive pad, until the jaws of the collet are behind the carbon ring assembly (80).
(3) Tighten the sleeve by hand until the collet is tight against the carbon ring assembly (80).
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Magnetic Seal Assembly (Typical)
Figure 803/TASK 72-63-00-991-307
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Removal of a Magnetic Seal Carbon Ring Assembly (Typical) Figure 804/TASK 72-63-00-991-308
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(4) Attach the slide hammer to the handle and remove the carbon ring assembly (80) from the gearshaft.
(5) Loosen the sleeve and remove the carbon ring assembly (80), from the tool.
(6) Remove and discard the O-ring (70).
(7) Put the removed parts in a storage box and send them to the repair shop.
Subtask 72-63-00-420-062
D. Installation of the Magnetic Seal Assembly (type without the thrust ring)
CAUTION : DO NOT USE THIS SOLVENT NEAR FLAMES OR HEAT, BECAUSE THIS
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