-set the blade of the RAT manually
in line with the leg assembly
(index position).
NOTE : Retraction is not possible if
____
the index is not adjacent to
the arrow.
At the access door 197EB:
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
R R - open the access door 197EB (ground service panel of the Blue system), - open the door of the RAT control panel 3GE.
R R R R 1. On the RAT control panel 3GE: - lift the red guard and set the 28VDC switch to the ON position,
R - set the STOW/RESET switch to the STOW position and keep it in this position.
R R R R R R 2. On the RAT control panel 3GE: - release the STOW/RESET switch, - set the 28VDC switch to the OFF position and close the red guard, - close and lock the door of the RAT control panel 3GE.
3. Close the access door 197EB (ground service panel of the Blue system).
**ON A/C ALL
5. Close-up________
Subtask 24-20-00-860-052
In the zone 197:
-
the RAT STOWED indicator light is off,
-
the ACTUATOR PRESSURE light comes on,
-
the RAT goes back in its housing.
NOTE : if the RAT does not retract, do
____ again the full test procedure (RAT retraction).
In the zone 197:
-
the ACTUATOR PRESSURE light goes off,
-
the RAT STOWED indicator light comes on.
A. Put the aircraft back to its initial configuration.
(1)
Depressurize the Blue hydraulic system
(Ref. TASK 29-10-00-864-003).
(2)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
R 1EFF : ALL 1 24-20-00Page 408 1 1 May 01/03 1 1 1CES 1
(3) Remove the warning notice(s).
(4) Remove the safety barriers. Subtask 24-20-00-410-050
B. Close Access
(1)
Close the access door 812.
(2)
Remove the access platform(s).
1EFF : ALL 1 24-20-00Page 409 1 1 May 01/03R 1 1 1CES 1
TASK 24-20-00-440-002
Reactivation of the RAT Extension Control
1. Reason for the Job
__________________
Refer to the MMEL TASK: 24-20-06
AC Generation - RAT Extension Control
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-22-00-710-001 Operational Check of Ram Air Turbine (RAT) Automatic Deployment TSM 24 PB 201 (for corrective action)
3. Procedure
_________
Subtask 24-20-00-810-051
A. Do the trouble-shooting of the RAT automatic extension system (Ref. TSM 24 PB 201).
Subtask 24-20-00-710-055
B. Do the operational test of the RAT automatic extension (Ref. TASK 29-22-00-710-001).
4. Close-up
________
Subtask 24-20-00-860-055
A. Make sure that the work area is clean and clear of tool(s) and other
items. R INTEGRATED DRIVE GENERATOR SYSTEM (IDG, GCU) - DESCRIPTION AND OPERATION
________________________________________________________________________
1. General
_______
Each engine (HP rotor) drives its associated IDG through the accessory
gearbox. The drive speed varies according to the engine rating.
The IDG provides a 115/200 VAC, 3-phase, 400 Hz AC supply at the Point of
Regulation (POR).
The IDG has two parts: the Constant-Speed Drive (CSD) and the generator.
The hydromechanical Constant-Speed Drive drives the AC generator at constant
speed.
2. Component Location
__________________
R
R (Ref. Fig. 001, 002)
R The IDG is installed on the engine gearbox pad.
R It is attached by means of a Quick Attach Detach device (QAD),
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R (Ref. Fig. 003)
R **ON A/C 401-499,
R (Ref. Fig. 003A)
R **ON A/C ALL
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF.
-------------------------------------------------------------------------------5XT P/BSW-ELEC/IDG 1 35VU 210 831 24-21-00 6XT P/BSW-ELEC/IDG 2 35VU 210 831 24-21-00
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