(b)
 Install the floor panels 131TF, 132TF (Ref. TASK 53-22-14-400-001).

 (c)
 Set the CARGO COMP LT switch 6LU to OFF.

 (d)
 Close FWD cargo-compartment door (Ref. TASK 52-30-00-860-002).

 (3)
 FOR 57DU

 (a)
 Install the insulation of the AFT air-stop drain valve (5001MM) with adhesive tape.

 (b)
 Install the floor panels 151BG, 152BG (Ref. TASK 53-42-14-400-001).

 (c)
 Set the CARGO COMP LT switch 8LU to OFF.

 (d) Close AFT cargo-compartment door (Ref. TASK 52-30-00-860-002). Subtask 30-71-54-862-050
 B. De-energize the ground service network
 (Ref. TASK 24-42-00-862-001).

 DISK - HEATING (6DU,56DU) - REMOVAL/INSTALLATION
________________________________________________
 TASK 30-71-55-000-001
 Removal of the Heating Disk 6DU (56DU)
 WARNING : ISOLATE THE ELECTRICAL CIRCUITS FROM THE RELATED EQUIPMENT AND THE
_______ ENVIRONMENT.
 NOTE : The procedure is the same for the two heating disks.
____
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific insertion-removal tool M15.570-20
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External
 Power 30-71-55-991-001 Fig. 401 FOR FIN 6DU 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the
 Yellow Electric Pump 53-22-14-000-001 Removal of the FWD Cargo-Compartment Floor-Panels FOR FIN 56DU 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the
 Yellow Electric Pump 53-42-14-000-001 Removal of the AFT Cargo-Compartment Floor-Panels Zone 150

 3. Job Set-up
__________
 Subtask 30-71-55-861-050
 A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 Subtask 30-71-55-865-050
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------FOR 6DU 2000VU ICE PROT-CARGO DRAIN VALVE 20DU D04 2000VU CARGO DRAIN VALVE 20DU E02 2000VU SEMI AUTO CLS-FWD 2MY B03 2000VU SEMI AUTO CLS-FWD 3MY B01 FOR 56DU 2001VU ICE PROT-CARGO DRAIN VALVE 32DU D08 2001VU CARGO DRAIN VALVE 32DU D07 2001VU SEMI AUTO CLS-AFT 102MY E03 2001VU SEMI AUTO CLS-AFT 103MY E01
 Subtask 30-71-55-010-050
 C. Aircraft Maintenance Configuration
 (1)
 FOR 6DU

 (a)
 Open the FWD cargo-compartment door (Ref. TASK 52-30-00-860-001).

 (b)
 Set the CARGO COMP LT switch 6LU to ON.

 (c)
 Remove the floor panels 131TF, 132TF to get access to the FWD air-stop drain-valve (5000MM) (Ref. TASK 53-22-14-000-001).

 (2)
 FOR 56DU

 (a)
 Open the AFT cargo-compartment door (Ref. TASK 52-30-00-860-001).

 (b)
 Set the CARGO COMP LT switch 8LU to ON.

 (c)
 Remove the floor panels 151AG, 152AG, 151BG, 152BG to get access to the AFT air-stop drain-valve (5001MM) (Ref. TASK 53-42-14-000-001).

 4. Procedure
_________
 (Ref. Fig. 401/TASK 30-71-55-991-001) Subtask 30-71-55-020-050
 A. Removal of the heating disk 6DU (56DU)
 (1)
 Remove and discard the cable ties from the electrical wires. CAUTION : MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU

_______ DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

 (2)
 Disconnect the electrical connections (6) with the insertion-removal tool M15.570-20.

 (3)
 Loosen the velcro fasteners (12) of the insulation box of the air-stop drain valve. At the same time remove the lower lid (9).

 (4)
 Remove the sides (10), (11) of the insulation box.

 (5)
 Remove the screw (5), the washer (4) and the bonding strip (3) from the air-stopdrain valve (1).

 (6)
 Remove the screws (7), the washers (8) and the heating disk (2) from the air-stop drain-valve (1).
　
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