(23)
Let the PTU operate for a minimum of 3 minutes.
(24)
Examine the hydraulic connections of the PTU and make sure that there are no leaks.
(25)
On the panel 40VU:
(a)
Push the PTU P/BSW.
(b)
Make sure that the OFF light of the PTU P/BSW comes on.
(26)
Make sure that the PTU stops.
(27)
Stop the dry motoring of the left engine after 4 minutes (Ref. TASK 71-00-00-710-001).
(28)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
Subtask 29-23-41-710-050
E. Test NOTE : As an alternative procedure to the subsequent test, you can do the
____ opertional test of the PTU with the engine pumps (Ref. TASK 29-23-00-710-004).
(1)
Do the operational test of the PTU (power transfer Green to Yellow hydraulic system) (Ref. TASK 29-23-00-710-002).
(2)
Examine the hydraulic connections of the PTU and make sure that there are no leaks.
(3)
Do the operational test of the PTU (power transfer Yellow to Green hydraulic system) (Ref. TASK 29-23-00-710-003).
(4)
Examine the hydraulic connections of the PTU and make sure that there are no leaks.
1EFF : ALL 1 29-23-41Page 417 1 1 Aug 01/05R 1 1 1CES 1
5. Close-up
________ Subtask 29-23-41-860-052
A. Put the aircraft back to the serviceable condition.
(1)
Make sure that the fluid level in the reservoirs of the Green and Yellow hydraulic systems is correct. Add fluid as necessary (Ref. TASK 12-12-29-611-001) .
(2)
Remove the containers from below the hydraulic connections.
(3)
Make sure that the work area is clean and clear of tool(s) and other items.
(4)
Remove the access platform.
(5)
Close the left and right main landing gear doors (Ref. TASK 32-12-00-410-001).
SOLENOID VALVE - POWER TRANSFER UNIT (1012GL,3012GL) - REMOVAL/INSTALLATION
___________________________________________________________________________
TASK 29-23-51-000-001
Removal of the Solenoid Valve 1012GL of the Power Transfer Unit
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
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 caps No specific blanking plugs No specific circuit breaker(s) safety clip(s) No specific warning notices No specific container 1.0 l (0.2641 USgal)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-23-21-911-001 Removal/Installation of the Bobbins from their Housings and Installation of O-rings, Square Seals, and Back-up Rings on the Bobbins
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power
Transfer Unit (PTU) 32-12-00-010-001 Open the Main Gear Doors for Access 29-23-51-991-001 Fig. 401
R 1EFF : 001-049, 051-058, 101-101, 1 29-23-51Page 401 1 1 May 01/05 1 1 1CES 1
3. Job Set-up
__________ Subtask 29-23-51-860-050
A. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Open one main door of the main gear (Ref. TASK 32-12-00-010-001).
(3)
Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(4)
Depressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-001).
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