(4)
 Make sure that the electrical connectors are clean and in the correct condition.

 (5)
 Connect the electrical connector (2).

 (6)
 Make sure that the work area is clean and clear of tool(s) and other items in the MDDU housing.

 (7)
 Install the MDDU (1) in its housing.

 (8)
 Tighten the four quarter-turn fasterners (3). Subtask 31-38-22-861-051

 B.
 Energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-861-002).

 Subtask 31-38-22-865-052
 C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 3TD, 5TD
 Subtask 31-38-22-710-050
 D. On the MDDU, make sure that the < < MDDU READY > > indication is shown.
 5. Close-up
________ Subtask 31-38-22-862-051
 A. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
R 1EFF : 106-149, 151-199, 201-299, 301-399, 1 31-38-22Page 405 1401-499, 1Aug 01/05 1 1 1CES 1

 ROUTING BOX - DATA LOADING (102TD) - REMOVAL/INSTALLATION
_________________________________________________________ TASK 31-38-34-000-001 Removal of the Data Loading Routing Box (102TD)
 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 circuit breaker(s) safety clip(s)
 No specific warning notice
 No specific access platform 1.6 m (5 ft. 3 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External
 Power 52-41-00-410-002 Close the Avionics Compartment Doors after Access 31-38-34-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 31-38-34-861-050
 A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 Subtask 31-38-34-941-050
 B. In the cockpit, put a warning notice on the overhead panel to tell
 persons not to start the Data Loading Selector.

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 C. Get Access
 (1) Put the access platform in position at the access door 824.
 (2)
 Open the access door 824 (Ref. TASK 52-41-00-410-002). Subtask 31-38-34-865-050

 D.
 Open, safety and tag this(these) circuit breaker(s):

 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU DATA/LOADER/SPLY 3TD J16 121VU DLS&/DLRB/SPLY 5TD J15
 4. Procedure
_________
 (Ref. Fig. 401/TASK 31-38-34-991-001) Subtask 31-38-34-020-050
 A. Removal of the Data Loading Routing Box
 (1)
 Loosen the two coupling screws (6) from the four electrical connectors (6).

 (2)
 Disconnect the four electrical connectors (5) from the Data Loading Routing Box (1).

 (3)
 Put blanking caps on the disconnected electrical connectors.

 (4)
 Remove the four screws (2) and their washers (3).

 (5)
 Remove the Data Loading Routing Box (1).

R 1EFF : 106-149, 151-199, 201-299, 301-399, 1 31-38-34Page 402 1401-499, 1Aug 01/05 1 1 1CES 1

 Data Loading Routing Box (102TD)
 Figure 401/TASK 31-38-34-991-001

R 1EFF : 106-149, 151-199, 201-299, 301-399, 1 31-38-34Page 403 1401-499, 1Aug 01/05 1 1 1CES 1 TASK 31-38-34-400-001

 Installation of the Data Loading Routing Box (102TD)
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific warning notice
 No specific access platform 1.6 m (5 ft. 3 in.)

 B. Referenced Information
　
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