Removal of the Proximity Switches

TASK 52-71-13-000-003-A
Removal of the Proximity Switches

FIN: 59WV1 ** ON A/C NOT FOR ALL
FIN: 59WV2 ** ON A/C NOT FOR ALL
FIN: 61WV1 ** ON A/C NOT FOR ALL
FIN: 61WV2 ** ON A/C NOT FOR ALL

1. Reason for the Job
To replace the proximity sensor, the related target and its actuation mechanism.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Referenced Information

REFERENCE	DESIGNATION
TASK 25-23-47-000-009-A	Removal of the Door Frame Linings of the Right Forward Emergency Exit Door from Zone 232
TASK 25-23-47-000-010-A	Removal of the Door Frame Linings of the Left/Right Aft Emergency Exit Doors from Zones 251/252
TASK 52-22-00-010-001-A	Opening of the Emergency Exit Doors from the Passenger Compartment
TASK 52-22-00-860-003-A	Special Precaution before Maintenance on the Door Damper and Emergency Operation Cylinder
Proximity Switch / Target Adjustment

3. Job Set-up

WARNING: BEFORE YOU START WORK ON THE DOOR, MAKE SURE THAT:

THE EMERGENCY CONTROL HANDLE IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.
THE PERCUSSION LEVER OF THE DOOR-DAMPER AND EMERGENCY-OPERATION CYLINDER IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.

IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE DOOR CAN OPEN WITH FORCE OR THE ESCAPE SLIDE CAN DEPLOY SUDDENLY. THIS CAN CAUSE INJURY AND/OR DAMAGE.

Subtask 52-71-13-865-055-A ** ON A/C NOT FOR ALL

A. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

Subtask 52-71-13-010-053-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the applicable emergency exit door (Ref. AMM TASK 52-22-00-010-001).
(2) Put the safety barrier in position at the door frame to safety the opening.
(3) Make sure that the special precaution procedure on the door damper and emergency operation cylinder is done (Ref. AMM TASK 52-22-00-860-003).
(4) Remove the cabin lining from the applicable fuselage area (Ref. AMM TASK 25-23-47-000-010) and (Ref. AMM TASK 25-23-47-000-009).
(5) Remove the insulation mats from the applicable area.

4. Procedure
Subtask 52-71-13-020-052-A ** ON A/C NOT FOR ALL

A. Removal of the Proximity Switches
(1) Remove the proximity sensor (2) as follows:
(a) Disconnect the electrical connector (1) from the proximity sensor (2).
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(c) Remove and discard the lockwire from the locknut (7).
(d) Remove the locknut (7) with the lockwasher (4).
(e) Remove the proximity sensor (2) from the switch bracket (3).
(2) Remove the switch bracket (3) as follows:
(a) Remove the spring (22) from the switch bracket (3) and the link (21).
(b) Remove the safety ring (5), the washer (6) and the pin (19) to disconnect the link (21) from the switch bracket (3).
(c) Remove the link (21) from the switch bracket (3).
(d) Remove the nuts (8), the washers (11) and the screws (12).
(e) Remove the switch bracket (3) from the fuselage structure.
(3) Remove the switch actuation mechanism as follows:
(a) Remove the safety ring (24), the washer (23) and the pin (20) to disconnect the connection rod (14) from the link (21).
(b) Remove and discard the cotter pin (16) from the pin (18).
(c) Remove the pin (18) and the washer (17) to disconnect the segment assy (15) from the structure.
(d) If necessary, disassemble the connection rod (14) from the segment assy (15).

[Rev.10 from 2021] 2026.04.02 07:24:13 UTC