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Transfer Gearbox Assembly
Figure 001
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Transfer Gearbox Assembly
Figure 002
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Transfer Gearbox Assembly
Figure 003
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(3) The horizontal part of the TGB houses the horizontal bevel gear, its bearing housing, ball bearing and roller bearing. The bore of this bevel gear is splined at its forward end and connects with the horizontal drive shaft. An oil distributor installed inside the bevel gear and secured by a Spirolock system, ensures oil distribution to the bearing. The horizontal drive shaft housing is made of aluminum alloy, and the bearing housing is a cast part. It protects the horizontal drive shaft and the bevel gear assembly, and ensures connection with the AGB. It is bolted to both TGB and AGB housings. The suspension clevis is a cast part and is integral with the horizontal drive shaft housing.
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TRANSFER GEARBOX ASSEMBLY - REMOVAL/INSTALLATION
________________________________________________
TASK 72-62-00-000-002
Removal of the Transfer Gearbox Module
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plug
No specific blanking plugs and covers
No specific container
No specific hydraulic hoist platform
No specific slide hammer assy CG240
R No specific soft nose pliers No specific warning notice 856A2537 1 PROTECTOR - MOUNTING PIN 856A2719 1 FIXTURE, SUPPORT - TGB R/I 856A2727 1 PULLER RADIAL DRIVE SHAFT 856A2805 1 TURNBUCKLE - TGB R/I
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 72-63-00-400-002 Installation of the Handcranking Drive Cover 72-63-00-860-001 Disengagement/Engagement of the Horizontal Drive
Shaft
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-36-00-010-040 Opening of the Thrust Reverser Doors
80-11-10-000-002 Removal of the Pneumatic Starter
72-62-00-991-300 Fig. 401
72-62-00-991-301 Fig. 402
72-62-00-991-302 Fig. 403
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REFERENCE DESIGNATION
-------------------------------------------------------------------------------
72-62-00-991-303 Fig. 404
72-62-00-991-304 Fig. 405
72-62-00-991-305 Fig. 406
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 72-62-00-941-053
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).
Subtask 72-62-00-010-056
B. Get Access
(1) Open the fan cowl doors: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
Subtask 72-62-00-040-054
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
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