_________________________________________
TASK 32-11-19-000-001
Removal of the MLG Lock Springs
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE. 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
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REFERENCE QTY DESIGNATION
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No specific circuit breaker(s) safety clip(s) No specific safety barriers No specific warning notice No specific warning notices No specific access platform 2.5 m (8 ft. 2 in.)
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B. Referenced Information
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REFERENCE DESIGNATION
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24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) 32-00-00-481-001 Installation of the Safety Devices on the Landing
Gears
R 32-00-00-860-001 Flight Configuration Precautions with Electrical
R Power 32-11-19-081-001 Removal of the MLG Spring-Expander Tool 32-11-19-481-001 Installation of the MLG Spring-Expander Tool 32-12-00-010-001 Open the Main Gear Doors for Access 32-11-19-991-002 Fig. 401
3. Job Set-up
__________
Subtask 32-11-19-941-058
A. Safety Precautions
(1)
Put the safety barriers in position.
(2)
Make sure that the ground safety locks are on the landing gear (Ref. TASK 32-00-00-481-001).
(3)
On the panel 400VU:
-make sure that the landing-gear control-lever 6GA is in the DOWN position
-put a warning notices in position to tell persons not to operate the landing gear or the main gear doors.
(4)
Put a warning notice in the cockpit to tell persons not to pressurize the Green hydraulic system.
Subtask 32-11-19-860-060
B. Aircraft Maintenance Configuration
(1) Disconnect the isolation coupling of the PTU (Ref. TASK 29-23-00-860-001).
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C. Flight Configuration Precautions
(1)
If the electrical power is not necessary for other maintenance tasks, de-energize the aircraft electrical cicuits (Ref. TASK 24-41-00-862-002). Then, it is not necessary to operate the LGCIU circuit breakers.
(2)
If the electrical power is necessary, do the precautions for flight configuration (Ref. TASK 32-00-00-860-001) before you open the LGCIU circuit breakers.
Subtask 32-11-19-865-050
D. Open, safety and tag this(these) circuit breaker(s):
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PANEL DESIGNATION IDENT. LOCATION
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R 49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34
Subtask 32-11-19-010-052
E. Get Access
(1)
Open the applicable main gear door (Ref. TASK 32-12-00-010-001).
(2)
Make sure that the GROUND LOCK SLEEVE (460005835) is on the applicable main gear door actuating cylinder.
(3)
Put the access platform in position below the applicable zone 731(741).
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4. Procedure
_________
(Ref. Fig. 401/TASK 32-11-19-991-002) Subtask 32-11-19-020-051
A. Removal of the MLG Lock Springs
WARNING : BE CAREFUL WHEN YOU REMOVE THE LOCKSPRINGS AS THEY ARE IN
_______
TENSION.
(1)
Install the SPRING EXPANDER-MLG SIDE STAY, (Ref. TASK 32-11-19-481-001).
(2)
Remove the cotter pin (13), the nut (12) and the washer (11). Discard the cotter pin.
(3)
Adjust the SPRING EXPANDER-MLG SIDE STAY, by use of the driving nut (7), until the pin (2) is loose.
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