Cleaning of the Multipurpose Control Display Unit (MCDU)

TASK 22-82-12-100-001-A
Cleaning of the Multipurpose Control Display Unit (MCDU)

ZONE: 210
FIN: 3CA1
FIN: 3CA2
FIN: 3CA3 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	OPTICAL PRECISION PAD
No specific	1	STERILE GAUZE PAD

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08AGA1)	Aqueous Cleaner-Visual Display Unit - -
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.14SBA1)	Textile-Lint free Cotton -
No specific	impregnated screen pad 2000

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

3. Job Set-up
Subtask 22-82-12-869-050-A

A. There is no special job set-up for this task.

4. Procedure
Subtask 22-82-12-100-053-A

A. Cleaning of the Screen of the MCDU

CAUTION: BE VERY CAREFUL WHEN YOU CLEAN THE SCREEN OF THE MCDU. IT IS NOT POSSIBLE TO REPLACE THE GLASS. IF YOU CAUSE DAMAGE TO THE GLASS, THE DAMAGE WILL BE PERMANENT.

CAUTION: MAKE SURE THAT YOU OBEY THE INSTRUCTIONS IN THE CLEANING PROCEDURE THAT FOLLOWS. INCORRECT CLEANING CAN CAUSE DAMAGE TO THE ANTI-REFLECTIVE COATING. IT IS NOT PERMITTED TO USE TISSUES SUCH AS KLEENEX TISSUES. SUCH TISSUES CAN CAUSE LOCAL REMOVAL OF THE SURFACE TREATMENT, AND THUS HALOS OR SCRATCHES. ALWAYS APPLY THE CLEANING AGENT TO THE PAD AND NOT TO THE SCREEN.

CAUTION: USE ONLY THE SPECIFIED MATERIALS AND OBEY THE INSTRUCTIONS FROM THE MATERIAL MANUFACTURERS. OTHER MATERIALS CAN CAUSE DAMAGE TO THE SURFACE PROTECTION OF THE COMPONENTS AND THE RELATED AREA.

(1) Make an absorbent surgical cotton wadding Textile-Lint free Cotton - (Material No.14SBA1) or a STERILE GAUZE PAD or an OPTICAL PRECISION PAD moist with Aqueous Cleaner-Visual Display Unit - - (Material No.08AGA1) or Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) , or use an impregnated screen pad 2000.
(2) Move the moist wad (or pad) lightly across the surface of the screen (one time only).
(3) If you find again marks or dust on the screen, do steps (1) and (2) again with a new piece of moist wad (or pad). Do these steps again until the screen is fully clean.

NOTE: Use a new pad (or wad) each time to prevent scratches that can be caused by a dusty pad.

(4) Dry the screen with a clean wad (or pad). To do this, move the clean wad (or pad) lightly across the surface of the screen (one time only).

NOTE: We recommend to frequently clean the screen to remove finger marks or dust.

5. Close-up
Subtask 22-82-12-942-053-A

A. Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.01 04:35:37 UTC