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C. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-863-001 Pressurize the Green Hydraulic System 29-10-00-864-001 Depressurize the Green Hydraulic System 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power
Transfer Unit (PTU) 29-23-00-860-002 Connection of the Isolation Coupling of the Power Transfer Unit (PTU) 32-00-00-481-001 Installation of the Safety Devices on the Landing Gears 32-00-00-481-002 Installation of the Safety Devices on the Landing
Gear Doors 32-12-16-000-001 Removal of the Control Cable 2804GM (2805GM) 32-31-35-000-001 Removal of the MLG Door Actuating-Cylinder 2523GM
(2522GM) 32-31-35-400-001 Installation of the MLG Door Actuating-Cylinder 2523GM (2522GM) R 32-33-00-720-001 Functional Check of Free-Fall Extension 32-12-00-991-018 Fig. 407
3. Job Set-up
__________
(Ref. Fig. 407/TASK 32-12-00-991-018)
Subtask 32-12-00-941-067
A. Safety Precautions
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(Ref. TASK 29-00-00-910-002).
(1)
Put the safety barriers in position.
(2)
On the panel 400VU:
-make sure that the landing-gear control-lever 6GA is in the DOWN position
-put a warning notice in position to tell persons not to operate the landing gear.
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MLG Door Ground-Opening System Figure 407/TASK 32-12-00-991-018
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(3)
Put a warning notice in the cockpit to tell persons not to operate the Green and Yellow Hydraulic systems.
(4)
On the panel 110VU, make sure that the GRAVITY GEAR EXTN handle is folded into the center console.
(5)
Make sure that the ground safety locks are installed on the landing gear (Ref. TASK 32-00-00-481-001).
Subtask 32-12-00-860-071
B. Aircraft Maintenance Configuration WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED
_______ BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
(1)
Make sure that the aircraft electrical circuits are de-energized (Ref. TASK 24-41-00-862-002).
(2)
Depressurize the Green Hydraulic system (Ref. TASK 29-10-00-864-001).
Subtask 32-12-00-865-072
R C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
Subtask 32-12-00-010-063
D. Get Access
(1)
Put an access platform below the applicable zone 730(740).
(2)
Open the applicable access panel(s):
FOR 2804GM
- open 195BB
FOR 2805GM
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- open 196BB.
R (3) If necessary, open the MLG doors by the free-fall system (Ref. TASK 32-33-00-720-001).
(4) Install a GROUND LOCK SLEEVE (460005835) on each MLG door actuating cylinder (Ref. TASK 32-00-00-481-002).
(5) Disconnect the isolation coupling of the PTU (Ref. TASK 29-23-00-860-001).
4. Procedure_________
Subtask 32-12-00-020-067
R A. Deactivation of the MLG Ground Door Opening Cable (Ref. Fig. 407/TASK 32-12-00-991-018)
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE_______ CLEAR.
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