(2)
 Open the access door 811.

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 Subtask 32-31-71-869-052
 C. Obey the applicable safety precautions before you open the LGCIU circuit breakers (Ref. TASK 32-00-00-860-001). 
R  Subtask 32-31-71-865-058 
R  D. Open, safety and tag this(these) circuit breaker(s): 
R R R R R R  -------------------------------------------------------------------------------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
 4. Procedure_________
 (Ref. Fig. 401/TASK 32-31-71-991-001)
 Subtask 32-31-71-020-050
 A. Removal of the LGCIU
 (1) Loosen the nuts (4).
 (2) Lower the nuts (4).
 (3) Pull the LGCIU (1) on its rack (3) to disconnect the electrical connectors (2).
 (4) Remove the LGCIU (1) from its rack (3).
 (5) Put blanking caps on the disconnected electrical connectors.

 Landing Gear Control and Interface Unit (LGCIU)
 Figure 401/TASK 32-31-71-991-001
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 TASK 32-31-71-400-001
 Installation of the LGCIU (5GA1, 5GA2)

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform 1.8 m (5 ft. 11 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from
 the External Power 32-00-00-860-001 Flight Configuration Precautions 32-00-00-860-002 Ground Configuration after Flight Configuration 32-31-00-720-002 Functional Test of the Normal Extension and
 Retraction of the Landing Gear 32-69-00-740-001 BITE Test of the Landing Gear 32-31-71-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 32-31-71-860-050
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).

 (2)
 Make sure that the access platform is in position at the access door

 811.
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 (3) Make sure that the access door 811 is open.
 (4) Make sure that you obeyed the flight configuration precautions (Ref. TASK 32-00-00-860-001). 
R  Subtask 32-31-71-865-059 
R R  B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged 
R R R R R R  -------------------------------------------------------------------------------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
 4. Procedure_________
 (Ref. Fig. 401/TASK 32-31-71-991-001)
 Subtask 32-31-71-420-050
 A. Installation of the LGCIU
 (1) Clean the component interface and/or the adjacent area.
 (2) Do an inspection of the component interface and/or the adjacent area.
 (3) Remove the blanking caps from the electrical connectors.
 (4) Make sure that the electrical connectors are clean and in the correct condition.
 (5) Install the LGCIU (1) on its rack (3).
 (6) Push the LGCIU (1) on its rack (3) to connect the electrical connectors (2).
 (7) Engage the nuts (4) on the lugs (5) and tighten.
 (8) Make sure that the OBRMs are correctly installed. If they are not installed correctly, push the OBRMs until the locking devices are locked.
　
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