(6) Disconnect the three wires of the heater elements (4) and (5) from the terminal strip.
 NOTE : Identify all the electrical wires before you disconnect them.
____
 (7)
 Remove the waste-water de-icing sensor (40DU) (Ref. TASK 30-71-17-000-001).

 (8)
 Remove and discard the heat-shrink sleve (7) and the glass fiber tape

 (6) that attaches the heater elements (4) and (5) to the waste water line.
 NOTE : Do not damage the waste water line when you remove the
____
 heat-shrink sleeve.

 (9) Remove the heater elements (4) and (5).
R 1EFF : 001-049, 052-099, 101-149, 201-299, 1 30-71-53Page 404 1 1 Config-1 May 01/05 1 1 1CES 1

 TASK 30-71-53-400-001

 Installation of the Waste-Water De-icing Heater Elements (41DU, 42DU)
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific lint free cloth
 No specific access platform 2 m (6 ft. 7 in.)

 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 08-001  USA DOD-A-82720 GENERAL PURPOSE ADHESIVE HONEYCOMB FILLER (Ref. 20-31-00)
 Material No. 11-001  USA MIL-D-16791 TYPE I DETERGENT (Ref. 20-31-00)
 C. 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 30-71-00-710-002 Operational Test of the Waste-Water Ice-Protection Heater-Elements 30-71-17-400-001 Installation of the Waste-Water De-icing Sensor (40DU) 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
R 1EFF : 001-049, 052-099, 101-149, 201-299, 1 30-71-53Page 405 1 1 Config-1 May 01/05 1 1 1CES 1 -------------------------------------------------------------------------------

REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
52-30-00-860-002  Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
 30-71-53-991-001  Fig. 401
 3. Job Set-up
__________
 Subtask 30-71-53-860-050

 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 door 825. Subtask 30-71-53-010-053
 B. Get Access
 (1)
 Make sure that the FWD cargo-compartment door 825 is open (Ref. TASK 52-30-00-860-001).

 (2)
 Make sure that the CARGO COMPT LIGHT switch 6LU is at ON.

 (3)
 Make sure that in the FWD cargo-compartment, the panels FOR 41DU, 42DU 131GW, 131HW, 131GF, 131FF, 131EF are removed.

 Subtask 30-71-53-865-051
 C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------
PANEL DESIGNATION  IDENT. LOCATION
 -------------------------------------------------------------------------------

R  C/B NOT APPLICABLE

 4. Procedure
_________

 (Ref. Fig. 401/TASK 30-71-53-991-001) Subtask 30-71-53-420-050
 A. Installation of the Heater Element
 (1) Preparation for installation: WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THE
_______
 SPECIAL MATERIAL.
 THIS MATERIAL IS DANGEROUS.

 (a) Clean the waste water line (9) with CLEANING AGENTS (Material No. 11-001) and a lint free cloth.
 (2)
 Do a visual inspection of the component interface and/or the adjacent area.

 (3)
 Put the heater elements (4) and (5) in position on the waste water line (9).

 NOTE : The two heater elements are located on the two sides of the
____
 waste water line.

 (4) Attach the heater elements (4) and (5) to the waste water line with the BONDING AND ADHESIVE COMPOUNDS (Material No. 08-001) (6).
 NOTE : Make sure that the heater elements (4) and (5) are correctly
　
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