Installation of the Steam Oven(s)

TASK 25-35-19-400-003-A
Installation of the Steam Oven(s)

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THIS EQUIPMENT. THIS EQUIPMENT IS HEAVY (MORE THAN 12 KG (26.5 lb)) AND CAN CAUSE INJURY AND/OR DAMAGE.

ZONE: 200

1. Reason for the Job
Self Explanatory

NOTE: More than one person is necessary for this procedure.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.22 and 0.18 m.daN (19.47 and 15.93 lbf.in )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-35-00-710-016-A	Operational Test of the Steam Oven
TASK 38-10-00-614-001-A	Pressurization of the Potable Water System from a Ground Air Supply
TASK 38-10-00-614-002-A	Depressurization of the Potable Water System
Steam Oven(s)

3. Job Set-up
Subtask 25-35-19-860-056-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
(3) On the water service panel:
(a) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the potable water system.

Subtask 25-35-19-860-068-A ** ON A/C NOT FOR ALL

B. At the applicable galley, on the galley control panel, make sure that the related circuit breaker(s) of the steam oven(s) is (are) open, safetied and tagged.

4. Procedure
Subtask 25-35-19-420-052-C ** ON A/C NOT FOR ALL

A. Installation of the Steam Oven

Steam Oven(s) ** ON A/C NOT FOR ALL

WARNING: DO NOT TOUCH THE UNIT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).

WARNING: SUPPORT THE UNIT/ASSEMBLY. THE UNIT/ASSEMBLY IS HEAVY. IF YOU DO NOT SUPPORT IT, IT WILL FALL. THIS CAN CAUSE INJURY TO PERSONS, AND/OR DAMAGE TO EQUIPMENT.

(1) Remove the CAP-BLANKING from each electrical connector and receptacle.
(2) Make sure that all the electrical connections are clean and in the correct condition.
(3) Put the steam oven (2) in position on the guide rails (4).
(4) Connect 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.

WARNING: DO NOT DO WORK ON THE WASTE WATER SYSTEM AND THE POTABLE WATER SYSTEM AT THE SAME TIME. THIS WILL PREVENT CONTAMINATION OF THE POTABLE WATER SYSTEM. SUCH CONTAMINATION CAN BE DANGEROUS TO HEALTH.

WARNING: ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:

ON THE WASTE WATER SYSTEM, OR
ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE WATER SYSTEM.

WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION (WASTE WATER IS DANGEROUS FOR HEALTH).

(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Do an inspection of the component interfaces and the adjacent area.
(c) Connect the water supply line (3).
(5) Carefully push the steam oven (2) into the stowage of the galley to connect the electrical connector.
(6) Install the screws (1).

Subtask 25-35-19-420-052-J ** ON A/C NOT FOR ALL

A. Installation of the Steam Oven

Steam Oven(s) ** ON A/C NOT FOR ALL

WARNING: DO NOT TOUCH THE UNIT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).

WARNING: SUPPORT THE UNIT/ASSEMBLY. THE UNIT/ASSEMBLY IS HEAVY. IF YOU DO NOT SUPPORT IT, IT WILL FALL. THIS CAN CAUSE INJURY TO PERSONS, AND/OR DAMAGE TO EQUIPMENT.

WARNING: MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.

WARNING: ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:

ON THE WASTE WATER SYSTEM, OR
ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE WATER SYSTEM.

WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION (WASTE WATER IS DANGEROUS FOR HEALTH).

Subtask 25-35-19-860-069-A ** ON A/C NOT FOR ALL

B. At the applicable galley, on the galley control panel, remove the safety clip(s) and the tag(s), then close the related circuit breaker(s) of the steam oven(s).

Subtask 25-35-19-710-052-A ** ON A/C NOT FOR ALL

C. Do the operational test of the steam oven(s) (Ref. AMM TASK 25-35-00-710-016).

5. Close-up
Subtask 25-35-19-860-058-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Remove the WARNING NOTICE(S).
(2) Pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(4) Make sure that the work area is clean and clear of tools and other items.

Subtask 25-35-19-862-052-A ** ON A/C NOT FOR ALL

B. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.03.31 23:34:29 UTC