3. Job Set-up
__________
Subtask 30-73-55-861-050
A. Energize the ground service network
(Ref. TASK 24-42-00-861-001).
Subtask 30-73-55-865-050
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------FOR 3DW. 2000VU POT/WASTE WIP - HEATER LINE 1DW A02 2000VU POT/WASTE WIP - HEATER CTL 2DW A01
Subtask 30-73-55-010-050
C. Get Access
(1)
FOR 333DW, 334DW
(a)
open the FWD cargo-compartment door (Ref. TASK 52-30-00-860-001).
(b)
set the CARGO COMP LT switch 6LU to ON.
(2)
FOR 333DW
-remove the partitions 131PW, (Ref. TASK 25-54-12-000-001).
(3)
FOR 334DW
-in the cabin, remove the LH passenger seats between FR36 and FR47 (Ref. TASK 25-21-41-000-001).
-
remove the textile floor covering between FR36 and FR47 to get access to the cabin floor panels 241FF and 241KF (Ref. TASK 25-28-41-000-001).
-
remove the cabin floor panels 241FF and 241KF (Ref. TASK 53-32-12-000-002).
4. Procedure
_________
(Ref. Fig. 401/TASK 30-73-55-991-001) Subtask 30-73-55-020-050
A. Removal of the Heating Element (Example)
(1)
Remove and discard the cable ties of the identification and warnig lables.
(2)
Remove and discard the cable ties which attaches the elctrical wires of the related heater element (6).
(3)
Remove and the burr sleeves (1) and the insulation sleeve (4).
(4)
Remove the insulation (7).
(5)
Disconnect the electrical connections (2) with the insertion-removal tool M15.570-16.
NOTE : Identify all the electrical wires before you disconnect them.
____
(6)
If necessary, remove the related Temperature Sensor.
(7)
Remove and discard the shrinkable sleeve (8) that safties both ends of the glass fiber tape (9).
NOTE : Do not damage the wastewater line (5) when you remove the
____
shrinkable sleeve (8).
(8)
Remove and discard the glass fiber tape (9) which attaches the heater element (6) to the wastewater line (5).
(9)
Remove the heater element (6).
Removal/Installation of the Potable Water Heater Elements
Figure 401/TASK 30-73-55-991-001- 12 (SHEET 1)
Removal/Installation of the Potable Water Heater Elements
Figure 401/TASK 30-73-55-991-001- 22 (SHEET 2)
TASK 30-73-55-400-001
Installation of the Potable-Water Heater Elements
WARNING : ISOLATE THE ELECTRICAL CIRCUITS FROM THE RELATED EQUIPMENT AND THE
_______
ENVIRONMENT.
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL MATERIALS
_______
ONLY WITH A GOOD SUPPLY OF AIR.
OBEY THE MANUFACTURERS INSTRUCTIONS.
PUT ON PROTECTIVE CLOTHING.
DO NOT GET THEM IN YOUR MOUTH.
DO NOT SMOKE.
DO NOT BREATHE THE GAS.
THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT.
GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
NOTE : The installation procedure is the same for all the heater elements.
____
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific cable ties
No specific insertion-removal tool M15.570-16
No specific lint-free cloth
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 08-053 D DAN 328-H GLASS FIBER TAPE (Ref. 20-31-00) R Material No. 11-003 USA ASTM D 740 METHYL-ETHYL-KETONE (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-862-001 De-energize the Ground Service Network Supplied from
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
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