Lubrication of the Door Warning Proximity Switch Actuating Mechanism

TASK 12-22-52-640-005-A
Lubrication of the Door Warning Proximity Switch Actuating Mechanism

ZONE: 831
ZONE: 832
ZONE: 841
ZONE: 842

1. Reason for the Job
Refer to the MPD TASK: 527100-02
LUBRICATION OF DOOR WARNING PROXIMITY SWITCH ACTUATING MECHANISM
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03BDB9)	Mineral base Lubricating Oil-General & Water-displacing Preservative Low Temp. -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
831	FORWARD PASSENGER/CREW DOOR
832	AFT PASSENGER/CREW DOOR
841	FORWARD PASSENGER/CREW DOOR
842	AFT PASSENGER/CREW DOOR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 25-23-45-000-002-A	Removal of the Door Frame Linings from the Right Forward Passenger/Crew Door
TASK 25-23-45-000-003-A	Removal of the Door Frame Linings from the Left Aft Passenger/Crew Door
TASK 25-23-45-000-004-A	Removal of the Door Frame Linings from the Right Aft Passenger/Crew Door
TASK 25-23-45-000-005-A	Removal of the Door Frame Linings from the Left Forward Passenger/Crew Door
TASK 25-23-45-400-005-A	Installation of the Door Frame Linings on the Right Aft Passenger/Crew Door
TASK 25-23-45-400-006-A	Installation of the Door Frame Linings on the Left Forward Passenger/Crew Door
TASK 25-23-45-400-007-A	Installation of the Door Frame Linings on the Right Forward Passenger/Crew Door
TASK 25-23-45-400-008-A	Installation of the Door Frame Linings on the Left Aft Passenger/Crew Door
TASK 52-10-00-010-001-A	Opening of the Passenger/Crew Door
TASK 52-10-00-410-001-A	Closing of the Passenger/Crew Door
TASK 52-10-00-860-001-A	Special Precautions before Work on the Passenger/Crew Door
TASK 52-10-00-860-002-A	Special Precautions after Work on the Passenger/Crew Door
Actuating Mechanism of Proximity Switches

3. Job Set-up
Subtask 12-22-52-010-054-B

A. Get Access
(1) Obey the special precautions before you start work on the passenger/crew door (Ref. AMM TASK 52-10-00-860-001).
(2) Open the applicable passenger/crew door as required (Ref. AMM TASK 52-10-00-010-001).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened passenger/crew door.
(4) Remove the door frame linings 221VW (Ref. AMM TASK 25-23-45-000-005) 222VW (Ref. AMM TASK 25-23-45-000-002) 261UW (Ref. AMM TASK 25-23-45-000-003) or 262UW (Ref. AMM TASK 25-23-45-000-004) as required.
(5) Remove the insulation blankets from the applicable door frame as required.

4. Procedure
Subtask 12-22-52-640-054-A

A. Lubrication of the Proximity Switch Actuating-Mechanism

Actuating Mechanism of Proximity Switches

(1) Apply Mineral base Lubricating Oil-General & Water-displacing Preservative Low Temp. - (Material No.03BDB9) to the pivot points of the actuation lever (1).
(2) Apply Mineral base Lubricating Oil-General & Water-displacing Preservative Low Temp. - (Material No.03BDB9) to the pivot point of the target lever (2).
(3) Remove the unwanted oil with a Textile-Lint free Cotton - (Material No.14SBA1) .

5. Close-up
Subtask 12-22-52-410-054-B

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the removed insulation blankets on the applicable passenger/crew doors.
(3) Install the applicable door frame linings 221VW (Ref. AMM TASK 25-23-45-400-006) 222VW (Ref. AMM TASK 25-23-45-400-007) 261UW (Ref. AMM TASK 25-23-45-400-008) or 262UW (Ref. AMM TASK 25-23-45-400-005).
(4) Do the special precautions on the passenger/crew door after maintenance (Ref. AMM TASK 52-10-00-860-002).
(5) Close the applicable passenger/crew doors (Ref. AMM TASK 52-10-00-410-001).
(6) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:10:29 UTC