Replacement of the Diaphragm in the Percussion Mechanism of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

TASK 52-10-00-610-001-A
Replacement of the Diaphragm in the Percussion Mechanism of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

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

ZONE: 830
ZONE: 840

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	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific	1	BLOWING EQUIPMENT - DRY AIR
No specific	1	BRUSH - NON METALLIC, SOFT
No specific	AR	EXTRATOR - PIN DIA 3 MM (0.1 IN)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	Torque wrench: range to between 0.16 and 0.14 m.daN (14.16 and 12.39 lbf.in )
701-2978000	1	PIN-SAFETY, PAX DOOR DAMPER

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02BBB9)	Mineral Hydraulic Fluid-Damper - -
(Material No.08BBC1)	Non Aqueous Cleaner-- Naphta based and Alcohol -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
830	L PASSENGER/CREW DOORS & EMERGENCY EXITS
840	R PASSENGER/CREW DOORS & EMERGENCY EXITS

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
5	PACKINGS	AIPC 52-11-14-01-020
6	SEAL	AIPC 52-11-14-01-030
7	DIAPHRAGM	AIPC 52-11-14-01-040
12	SHEAR PIN	AIPC 52-11-14-01-110
5	PACKINGS	AIPC 52-13-14-01-020
6	SEAL	AIPC 52-13-14-01-030
7	DIAPHRAGM	AIPC 52-13-14-01-040
12	SHEAR PIN	AIPC 52-13-14-01-110

E. Referenced Information

REFERENCE	DESIGNATION
TASK 25-23-46-000-001-A	Removal of the Door Linings from the Forward Passenger/Crew Doors
TASK 25-23-46-000-002-A	Removal of the Door Linings from the Aft Passenger/Crew Doors
TASK 25-23-46-400-001-A	Installation of the Door Linings on the Forward Passenger/Crew Doors
TASK 25-23-46-400-002-A	Installation of the Door Linings on the Aft Passenger/Crew Doors
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 52-10-00-614-001-A	Discharging/Charging of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors
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
Door Damper and Emergency Operation Cylinder ** ON A/C NOT FOR ALL
Door Damper and Emergency Operation Cylinder ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 52-10-00-941-069-A

A. Get Access

WARNING: DO NOT OPEN THE PASSENGER/CREW DOOR IF THE WIND SPEED IS MORE THAN 65 KNOTS.

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.

WARNING: STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES. IF THE RED WARNING LIGHT FLASHES, REMAINING PRESSURE CAN CAUSE THE DOOR TO OPEN SUDDENLY AND CAN:

KILL OR CAUSE SERIOUS INJURY TO PERSONS
CAUSE DAMAGE TO THE AIRCRAFT.

(1) Put an ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in front of the passenger/crew door 831 (841) or 832 (842).
(2) Open the passenger/crew door 831 (841) or 832 (842) (Ref. AMM TASK 52-10-00-010-001).
(3) Obey the special precautions before you start work on the door (Ref. AMM TASK 52-10-00-860-001).

Subtask 52-10-00-865-071-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C 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 52-10-00-020-052-A

C. Removal of the Components
(1) Remove the lining panels 831FZ (841FZ) and 831GZ (841GZ) (Ref. AMM TASK 25-23-46-000-001) or 832FZ (842FZ) and 832GZ (842GZ) (Ref. AMM TASK 25-23-46-000-002).
(2) Bleed the pressurized bottle with the valve (10) until the pressure gage shows "0".

4. Procedure
Subtask 52-10-00-020-053-A

WARNING: MAKE SURE THAT YOU INSTALL THE CORRECT (ALUMINUM) SHEAR PIN ON THE DOOR-DAMPER PERCUSSION DEVICE. INSTALLATION OF AN INCORRECT SHEAR PIN WILL PREVENT OPERATION OF THE ACTUATOR IN THE EMERGENCY MODE.

CAUTION: MAKE SURE THAT THE TOOLS AND SPARE PARTS ARE CLEAN AND IN THE CORRECT CONDITION. CLEAN OR REPLACE THEM IF NECESSARY. IF THE TOOLS AND SPARE PARTS ARE DIRTY, CONTAMINATION CAN GO INTO THE FILLING VALVE AND NITROGEN CYLINDER AND CAUSE A NITROGEN LEAK.

A. Removal

Door Damper and Emergency Operation Cylinder ** ON A/C NOT FOR ALL

(1) Make sure that the 701-2978000 PIN-SAFETY, PAX DOOR DAMPER (14) is installed.
(2) Cut and remove the lockwire from the knurled screw (1).
(3) Release the lever (2).
(4) Remove the possible burr because of the shearing of the pin.
(5) Remove the shear pin (12) with a 1 mm (0.0394 in.) EXTRATOR - PIN DIA 3 MM (0.1 IN) and discard it.
(6) Loosen the knurled screw (1).
(7) Remove the percussion lever (2) from the guide (13). Turn the lever by 90 degrees.
(8) Tighten the knurled screw (1).
(9) Remove the screws (3) and the guide (4).
(10) Remove the packings (5) and the seal (6) from the guide (4) and discard them.
(11) Remove the diaphragm (7), the spring (8) and the spacer (9) from the bore of the housing (11).

NOTE: Make sure that you remove all the parts in the housing of the striker mechanism.

(12) Discard the diaphragm (7).

Subtask 52-10-00-420-051-A

B. Installation

WARNING: DO NOT FILL THE DOOR DAMPER AND EMERGENCY OPERATION CYLINDER TO A PRESSURE OF MORE THAN 120 BAR (1740 PSI). TOO MUCH PRESSURE WHEN YOU FILL THE CYLINDER CAN CAUSE INJURY AND/OR DAMAGE.

(1) Clean the removed parts with a BRUSH - NON METALLIC, SOFT and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(2) Clean the removed parts with Non Aqueous Cleaner-- Naphta based and Alcohol - (Material No.08BBC1) .
(3) Dry the parts with BLOWING EQUIPMENT - DRY AIR.
(4) For the FWD passenger/crew doors:

(a) Install the new AIPC 52-11-14-01-110 SHEAR PIN (12).
(5) For the aft passenger/crew doors:

(a) Install the new AIPC 52-13-14-01-110 SHEAR PIN (12).
(6) Apply Mineral Hydraulic Fluid-Damper - - (Material No.02BBB9) on the new seal (6) and on the new packings (5).
(7) For the FWD passenger/crew doors:
(a) Install the spacer (9), the spring (8), the new AIPC 52-11-14-01-040 DIAPHRAGM (7), the new AIPC 52-11-14-01-030 SEAL (6) and the new AIPC 52-11-14-01-020 PACKINGS (5) in the housing (11) of the percussion mechanism.
(8) For the aft passenger/crew doors:
(a) Install the spacer (9), the spring (8), the new AIPC 52-13-14-01-040 DIAPHRAGM (7), the new AIPC 52-13-14-01-030 SEAL (6) and the new AIPC 52-13-14-01-020 PACKINGS (5) in the housing (11) of the percussion mechanism.
(9) Installation of the guide (4)

WARNING: MAKE SURE THAT YOU INSTALL THE GUIDE IN THE CORRECT POSITION BEFORE YOU INSTALL THE SCREWS. INCORRECT INSTALLATION OF THE GUIDE CAN PREVENT OPERATION OF THE ACTUATOR IN THE EMERGENCY MODE.

CAUTION: DO NOT APPLY MORE THAN THE SPECIFIED TORQUE TO THE SCREWS OF THE GUIDE. OVERTORQUE WILL CAUSE DAMAGE TO THE DIAPHRAGM AND WILL THUS CAUSE LEAKAGE OF NITROGEN FROM THE CYLINDER.

(a) Put the guide (4) in position.
(b) Make sure that the tightened spigot of the guide (4) is in the opposite direction of the filling valve (10).
(c) Install the screws (3) and TORQUE them to between 0.16 and 0.14 m.daN (14.16 and 12.39 lbf.in )

NOTE: When the screws (3) are tight, there is a clearance of between 0.3 mm (0.0118 in.) and 0.4 mm (0.0157 in.) between the guide (4) and the percussion housing (11).

(10) Loosen the knurled screw (1).
(11) Alignment of Release Lever

CAUTION: MAKE SURE THAT THE STRIKER LEVER IS FULLY EXTENDED AND THAT THE KNURLED NUT TOUCHES THE END OF THE LEVER SLOT. A DIFFERENT POSITION WILL PREVENT THE CORRECT OPERATION OF THE DOOR DAMPER AND EMERGENCY OPERATION CYLINDER IN THE EMERGENCY MODE.

(a) Make sure that release lever (2) aligns with the flanged nut of the valve guide (4).
(12) Install the release lever (2) against the spring load of the valve guide (4) until it can engage into the guide (13).
(13) Make sure that the recess of the knurled screw (1) can fully engage in the rear bore of the release lever (2).
(14) Tighten the knurled screw (1) and safety it and the lever (2) with the 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(15) Fill the nitrogen bottle through the filling valve (10) to the correct pressure (Ref. AMM TASK 52-10-00-614-001).

5. Close-up
Subtask 52-10-00-420-052-A

A. Installation of the Components
(1) Install the lining panels 831FZ (841FZ) and 831GZ (841GZ) (Ref. AMM TASK 25-23-46-400-001) or 832FZ (842FZ) and 832GZ (842GZ) (Ref. AMM TASK 25-23-46-400-002).

Subtask 52-10-00-865-072-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C 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 52-10-00-942-072-A

C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Obey the special precautions after the work on the door (Ref. AMM TASK 52-10-00-860-002).
(3) Close the passenger/crew door 831 (841) or 832 (842) (Ref. AMM TASK 52-10-00-410-001).
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 06:31:28 UTC