Heating Disk 6DU/56DU
 Figure 401/TASK 30-71-55-991-001
 1EFF :  051-051,  1  30-71-55 Page 404 
1  1  May 01/05
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 TASK 30-71-55-400-001
 Installation of the Heating Disk 6DU (56DU)
 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  Torque Wrench : range 0.00 to 1.20 m.daN
 (0.00 to 9.00 lbf.ft)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-28-00-912-004  Electrical Bonding of Components With Conductive Bolts and Screws and Bonding Straps in the Fuselage and in the Wings (this does not include the tanks)-
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 30-71-00-720-001 Functional Test of the FWD (AFT) Air Stop Drain-Valve
 Heating-Disk 6DU (56DU) 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 52-30-00-860-002 Close 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 53-22-14-400-001 Installation of the FWD Cargo-Compartment
 Floor-Panels FOR FIN 56DU -------------------------------------------------------------------------------

REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
52-30-00-860-001  Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
 52-30-00-860-002  Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
 53-22-14-400-001  Installation of the FWD Cargo-Compartment Floor-Panels
 53-42-14-000-001  Removal of the AFT Cargo-Compartment Floor-Panels Zone 150
 3. Job Set-up__________
 Subtask 30-71-55-860-050
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the ground service network is energized
 (Ref. TASK 24-42-00-861-001)

 (2)
 FOR 6DU

 (a)
 Make sure that the FWD cargo-compartmnet door is open (Ref. TASK 52-30-00-860-001).

 (b)
 Make sure that the CARGO COMP LT switch 6LU is set to ON.

 (c)
 Make sure that the floor panels 131TF, 132TF are removed (Ref. TASK 53-22-14-000-001).

 (3)
 FOR 56DU

 (a)
 Make sure that the AFT cargo-compartmnet door is open (Ref. TASK 52-30-00-860-001).

 (b)
 Make sure that the CARGO COMP LT switch 8LU is set to ON.

 (c)
 Make sure that the floor panels 151AG, 152AG, 151BG, 152BG are removed (Ref. TASK 53-42-14-000-001).

 Subtask 30-71-55-865-051
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------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
 4. Procedure
_________
 (Ref. Fig. 401/TASK 30-71-55-991-001)
 Subtask 30-71-55-420-050
 A. Installation of the heating disk 6DU (56DU):
 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Attach the heating disk (2) with the screws (7) and the washers (8) to the air-stop drain-valve (1) (Ref. TASK 20-28-00-912-004).

 (3)
 Attach the bonding strip (3) with the screw (5) and the washer (4) to the air-stop drain-valve (1).

 (4)
 TORQUE all screws (5), (7) of the heating disk (2) to 0.08 m.daN

 (7.07 lbf.in).

 (5)
 Install the sides (10) and (11) of the insulation box.
　
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