72-62-00-991-306 Fig. 407 72-62-00-991-307 Fig. 408 72-62-00-991-308 Fig. 409
3. Job Set-up
__________
Subtask 72-62-00-860-051
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).
Subtask 72-62-00-010-059
B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Make sure that the thrust reverser doors are open: (Ref. TASK 78-36-00-010-040) FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 72-62-00-040-055
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
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4. Procedure
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(Ref. Fig. 401/TASK 72-62-00-991-300, 402/TASK 72-62-00-991-301, 403/TASK 72-62-00-991-302, 404/TASK 72-62-00-991-303, 405/TASK 72-62-00-991-304, 406/TASK 72-62-00-991-305, 407/TASK 72-62-00-991-306, 408/TASK 72-62-00-991-307, 409/TASK 72-62-00-991-308)
NOTE : In the procedure which follows, the AGB is supposed to be installed
____
on the engine and held in position by the TURNBUCKLE-TGB
REMOVAL/INSTALLATION (856A2805G01).
Subtask 72-62-00-480-053
A. Preparation for Installation:
(1) Install the TGB on the FIXTURE, SUPPORT - TGB R/I (856A2719G02) as follows:
(a) Adjust the 2 front plates of the tool to engage the 2 lockpins in the forward flange holes at 4:30 and 7:30 o'clock positions. Tighten the 2 knurled knobs.
(b) Attach the support, with the lockpin, to the rear mount flange of the TGB.
(2) Install the radial drive shaft (440) in the fan frame and IGB as follows:
(a) Remove the radial drive shaft (440) from storage tube assy (460).
(b) Installation of new O-ring. CAUTION : NEVER INSTALL O-RINGS ALREADY USED.
_______
1 Lightly coat a new O-ring (450) with engine oil (Material No.
_ CP2442) and install it in the groove of the shaft (440).
(c) Lightly coat the shaft splines (both ends) with engine oil (Material No. CP2442).
(d) Install PULLER RADIAL DRIVE SHAFT (856A2727G01) in the lower end of the shaft.
(e) Slide shaft in the fan frame into strut and IGB, engaging splines of shaft in splines of IGB.
(f) Ensure shaft remains in place. Remove puller.
(3) Inspect gaskets (90), (240) and (410) before installation to make sure that they are serviceable. If necessary, replace gaskets.
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Subtask 72-62-00-420-055
B. Installation of the TGB on fan frame:
(1) If necessary, remove the handcranking cover (Ref. TASK 72-63-00-000-002) and disengage the horizontal drive shaft (Ref. TASK 72-63-00-860-001).
(2) Remove covers, plugs and cap from the TGB housing.
(3) Remove cover from AGB horizontal drive shaft housing.
(4) Lightly coat the horizontal drive shaft splines and the gasket (410) to be installed between AGB and TGB, with engine oil (Material No. CP2442).
(5) Lubricate a new seal ring (295) with engine oil (Material No. CP2442) and install into the seal groove on the TGB adapter. (Ref. Fig. 403/TASK 72-62-00-991-302)
(6) Lubricate a new O-ring (420) with engine oil (Material No. CP2442). Install the O-ring (420) on the horizontal drive shaft.
R (7) Install the O-ring (430) in the groove on the oil distributor in the
R bevel gear:
R (Ref. Fig. 406/TASK 72-62-00-991-305)
R NOTE : If necessary, lubricate the new O-ring (430) with engine oil
____
(Material No. CP2442).
R (a) Engage the O-ring (430) by the hole of the oil distributor in the R bevel gear with soft nose pliers.
R (b) Put the O-ring (430) in the groove of the oil distributor in the R bevel gear with soft nose pliers.
R NOTE : Make sure that O-ring (430) is correctly installed in the
____ R groove of the oil distributor in the bevel gear.
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