R No specific 1 ACCESS PLATFORM 3M (10 FT) R No specific 1 CONTAINER 5 L(1 1/2 USGAL) R No specific 1 WARNING NOTICE
98D27504005000 2 PIN RIGGING-FLAPS (TRACK 1) R 98D27504006000 2 PIN RIGGING FLAPS 98D27803000000 1 LOCKING TOOL - FLAP/SLAT CONTROL LEVER
B. Referenced Information
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REFERENCE DESIGNATION
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27-00-00-480-002 Installation of the Flap/Slat Control-Lever Locking
Tool (98D27803000000) 27-50-00-866-009 Retraction of the Flaps on the Ground 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action
29-14-00-614-001 Depressurization of the Hydraulic Reservoirs
32-12-00-010-001 Open the Main Gear Doors for Access
27-54-53-991-001 Fig. 401
3. Job Set-up
__________
Subtask 27-54-53-866-050
A. Retraction of the Flaps
(1)
Retract the flaps to the 0 degree position (Ref. TASK 27-50-00-866-009).
(2)
Install the LOCKING TOOL - FLAP/SLAT CONTROL LEVER (98D27803000000) (Ref. TASK 27-00-00-480-002) on the slat/flap control lever.
Subtask 27-54-53-865-050
B. Open, safety and tag this(these) circuit breaker(s):
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PANEL DESIGNATION IDENT. LOCATION
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R 49VU FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 6CV B07 121VU FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 8CV Q21
Subtask 27-54-53-010-050
C. Open the main doors of the main gear (Ref. TASK 32-12-00-010-001).
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 27-54-53-860-050
D. Aircraft Maintenance Configuration
(1)
Put the access platform in position at the main gear main door opening.
(2)
Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. TASK 29-00-00-864-001).
(3)
Depressurize the reservoirs of the Green and the Yellow hydraulic systems (Ref. TASK 29-14-00-614-001).
(4)
Put the warning notice in position to tell persons not to pressurize the hydraulic systems.
(5)
Put a container in position below the Power Control Unit (PCU) (1).
(6)
Install the PIN RIGGING-FLAPS (TRACK 1) (98D27504005000) at the left and right flap track positions 1.
**ON A/C 301-399,
Subtask 27-54-53-860-050-A
D. Aircraft Maintenance Configuration
(1)
Put the ACCESS PLATFORM 3M (10 FT) in position at the main gear main door opening.
(2)
Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. TASK 29-00-00-864-001).
(3)
Depressurize the reservoirs of the Green and the Yellow hydraulic systems (Ref. TASK 29-14-00-614-001).
(4)
Put the WARNING NOTICE in position to tell persons not to pressurize the hydraulic systems.
(5)
Put a CONTAINER 5 L(1 1/2 USGAL) in position below the Power Control Unit (PCU) (1).
R (6) Install the PIN RIGGING FLAPS (98D27504006000) at the left and right R flap track positions 1.
R **ON A/C ALL
4. Procedure
_________
(Ref. Fig. 401/TASK 27-54-53-991-001)
Subtask 27-54-53-020-050
A. Removal of the Valve Block CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
(1)
To remove the valve block assembly (23), you must remove it together with the Pressure-Off Brake (POB) (41) and the hydraulic motor (7) from the differential gearbox (40):
