B.
Close the related circuit breaker at the related galley. Subtask 25-35-25-861-054
C. Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
Subtask 25-35-25-710-051
D. Do the operational Test of the Hot-Jug (Ref. TASK 25-35-00-710-021).
5. Close-up
________ Subtask 25-35-25-862-051
A. Close-up
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
De-energize the aircraft electrical circuits
WATER BOILER - REMOVAL/INSTALLATION___________________________________
TASK 25-35-27-000-001
Removal of the Water Boiler/Heater
1. Reason for the Job__________________
Self Explanatory
2. Job Set-up Information______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific No specific 1 CAP - BLANKING1 PLUG - BLANKING
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 38-10-00-614-002 Energize the Ground Service Network from the External PowerDepressurization of the Potable Water System
R **ON A/C 001-049, 101-105,
25-35-27-991-001-B Fig. 401
R **ON A/C 051-099,
R 25-35-27-991-001-D Fig. 401A
R **ON A/C 106-149, 151-199, 201-299,
R 25-35-27-991-001-C Fig. 401B
CES
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299,
3. Job Set-up
__________
Subtask 25-35-27-861-050
A. Energize the ground service network (Ref. TASK 24-42-00-861-001).
Subtask 25-35-27-865-050
B. Preparations for the Removal of the Water Heater
(1)
On the circuit breaker panel at the related galley:
(a) Open, safty and tag the related circuit breaker(s).
(2)
Make sure that the potable water system is de-pressurized (Ref. TASK 38-10-00-614-002).
4. Procedure
_________ R **ON A/C 001-049, 101-105,
Subtask 25-35-27-020-050-B
A. Removal of the Water-Heater WARNING : SUPPORT THE UNIT/ASSEMBLY OR IT WILL FALL AND BECOME DAMAGED OR
_______ INJURE PERSONNEL. THE UNIT/ASSEMBLY IS HEAVY.
(Ref. Fig. 401/TASK 25-35-27-991-001-B)
(1)
Prevent damage to the component interface and the adjacent area.
(2)
Remove the screws (1).
(3)
Carefully pull the water-heater (4) out of the galley and hold it in position.
(4)
Disconnect the electrical connector (3).
R EFF : 001-049, 051-099, 101-149, 151-199, 25-35-27Page 402 201-299, May 01/05
CES
Water Boiler/Heater Figure 401/TASK 25-35-27-991-001-B
R EFF : 001-049, 101-105, 25-35-27 Page 403 May 01/05
CES
(5) Disconnect the water supply line: WARNING : MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A_______ PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.
R (a) Disconnect the water supply line (2). (6) Remove the water-heater (4) from the galley. (7) Put PLUG - BLANKING on the disconnected line ends. (8) Put CAP - BLANKING on the disconnected electrical connectors. **ON A/C 051-099, 106-149, 151-199, 201-299,
Subtask 25-35-27-020-050-C
A. Removal of the Water-Heater
R **ON A/C 051-099,
R R (Ref. Fig. 401A/TASK 25-35-27-991-001-D) **ON A/C 106-149, 151-199, 201-299,
R R (Ref. Fig. 401B/TASK 25-35-27-991-001-C) **ON A/C 051-099, 106-149, 151-199, 201-299,
(1) Prevent damage to the component interface and the adjacent area. (2) Remove the screws (1). (3) Carefully pull the water-heater (4) out of the galley and hold it in position. (4) Disconnect the electrical connector (3).
CES
R R Water Boiler/Heater Figure 401A/TASK 25-35-27-991-001-D
R EFF : 051-099, 25-35-27 Page 405 May 01/05
CES
R Water Boiler/Heater Figure 401B/TASK 25-35-27-991-001-C
R EFF : 106-149, 151-199, 201-299, 25-35-27 Page 406 May 01/05
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