## SERVICE BULLETIN 22 CXX

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# SB 22CXX

- 0100

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- 003 REVISION TRANSMITTAL SHEET

This sheet transmits Revision 0 2 to Service Bulletin 22CXX

- 0100

- 35

- 003

REASON FOR REVISION

Serial Number sequence added

.

NOTES: The Service Bulletin is fully re

- printed.

Bars on the right margin identify the ch anges

REVISION SEQUENCE

ORIGINAL: MAR/17/2011

Revision 1: DEC/ 20 /2011

Revision 2 JUL/10/2014

Date: JUL/10/2014

## SERVICE BULLETIN 22 CXX

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- 003 ATA SYSTEM: 35



### TITLE : OXYGEN

– CHEMICAL PASSENGER EMERGENCY OXYGEN CONTAINER

IMPROVEMENT OF THE M ASK HOSE CONNECTIO N

1. PLANNING INFORMATION

A. EFFECTIVITY

This service bulletin is applicable to all chemical oxygen container assemblies Type I I (15/22 Minutes ) that are listed below

. Spare units may be affected as well

(1) Part numbers of the affected passenger emergency o xygen container assemblies :
Part Numbers Type II 15 Min. Part Numbers Type II 22 Min.

22C15L120080100 22C15L120100100 22C15L120120100 22C15L120220100 22C15L120280100 22C15L120640100 22C15L150020100 22C15L150320100 22C15L150460100 22C15L1 50640100 22C15L240080100 22C15L240100100 22C15L240120100 22C15L240220100 22C15L240280100 22C15L240320100 22C15L240640100 22C22L120100100 22C22L120220100 22C22L150020100 22C22L150040100 22C22L150460100 22C22L240100100 22C22L240220100

## SERVICE BULLETIN 22 CXX

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- 003 (2) Serial numb ers of the affected passenger emergency oxygen container assemblies are listed below:

from ARBA

- 0000 to ARBA

- 9999 from ARBB

- 0000 to ARBB

- 9999 from ARBC

- 0000 to ARBC

- 9999 from ARBD

- 0000 to ARBD

- 9999 from ARBE

- 0000 to ARBE

- 9999 from BEBE

- 0000 to BEBE

- 9999 f rom BEBF

- 0000 to BEBF

- 9999 from BEBH

- 0000 to BEBH

- 9999 from BEBK

- 0000 to BEBK

- 9999 from BEBL

- 0000 to BEBL

- 9999 from BEBM

- 0000 to BEBM

- 9999

NOTE : As far as still available at the Airbus final assembly line a few aircraft ha ve

already been reworked before h andover to the operator .Those units ha ve been marked with a green dot on the test button label as shown below and do not need further rework.

B. CONCURRENT REQUIREME NTS

N ot A pplicable

C

. REASON

During manufacturing at the manufacturer facility partic les had been detected in the oxygen generator manifolds. Investigation revealed that those particles (chips) are chafed from the mask hoses when installed onto the generator outlets. It was found out that a defective mask hose installation device has cause d the chips . Such chips may reduce or block the oxygen supply.

A replacement of the manifold is necessary. Green Dot

## SERVICE BULLETIN 22 CXX

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- 003 D

. DESCRIPTION

This Service Bulletin specifies the r eplacement of the Manifold

. (See Para. 3. ACCOMPLISHMENT INSTRUCTIONS of this SB )

E

. COMPLIANCE

Mandatory

F

. APPROVAL

Th e technical content of th is document is approved under the authority of DOA No. EASA

. 21J

. 031.

G

. MANPOWER



### For 22 C15

– 0100 Series Oxygen Container

This Service Bulletin may be accomplished on the Aircraft or in the workshop

. Th e e stimated time to do the work in this Service Bulletin is 0. 3 0 hours

. (1) Open the door of the oxygen container.

(2) Remove and secure the mask assemblies with rubber bands against uncoiling ( preferable by a second person) . Disconnect the mask lanyards (remain at tached to the release pin) at the mask assemblies

. (3) Remove th e manifold together with mask hoses from the oxygen generator , c ut the mask hoses from the manifold fitting s . Discard the manifold.

(4) Install the mask hoses to the fittings of a new manifold
, instal l the manifold back to the oxygen generator

. (5) Connect the mask lanyards to the mask assemblies

. Repack the oxygen mask assemblies and close the door assy.

(6) Do a manual door release test with test button in test position

.



### For 22 C22

– 0100 Series Oxygen Co ntainer

This Service Bulletin is recommended to be performed in a workshop within the following approximate man

- hours and elapsed time of 0.3 hours

.
NOTE : The man

- hours and elapsed time do not include the removal/installation of the

oxygen generator from/t o the aircraft.

(7) Open the door of the oxygen container, secure the mask assemblies with a rubber band
, remove the oxygen generator together with the mask assemblies

.

## SERVICE BULLETIN 22 CXX

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- 003 Disconnect the mask lanyards (remain attached to the release pin) at the mask assemblies

(8) Re move the manifold together with mask hoses from the oxygen generator, cut the mask hoses from the manifold fittings. Discard the manifold.

(9) Install the mask hoses to the fittings of a new manifold, install the manifold back to the oxygen generator.

(10) Connect the mask lanyards to the mask assemblies

. (11) Install the oxygen generator together with the mask assemblies back into the container. Repack the oxygen mask assemblies and close the door assy.

(12) Do a manual door release test with test button in test position

.

H

. WEIGHT AND BALANCE

Weight: not affected

Balance: not affected

J

. REFERENCE

This Service Bulletin is covered by Aircraft Inspection Service Bulletin N umber A320

- 35

- 1047.

CMM 35

- 2 2

- 25
, (D1379)

K

. PUBLICATION AFFECTED

CMM 35

- 2 2

- 25 (D1379)

L

. INTERCHA NGEABILITY OF PARTS

Refer to aircraft Service Bulletin No. 35

- 1047.

## SERVICE BULLETIN 22 CXX

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- 003 2. MATERIAL INFORMATION

A. M ATERIAL COST AND AVA ILABILITY

The c ost of the S ervice B ulletin application are : Free of Charge (FOC)

For p art procurement s and warranty claim please co ntact :

B / E Aerospace Systems GmbH Revalstrasse 1 23560 Lübeck GERMANY

Cage Code : D1379

Tel: (49) 451 4093

- 2976 Fax: (49) 451 4093

- 4488

e
- mail: dieter_heins@beaerospace

- systems.com

B. INDUSTRIE SUPPORT IN FOR M ATION

NOTE : It is recommended that completi on of this S ervice B ulletin be performed by

authorized personnel only. It is recommended to perform this SB work in a workshop. Customized solutions may be negotiated separately

.

## SERVICE BULLETIN 22 CXX

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- 003 C. MATERIAL NECESSARY F OR E ACH OXYGEN CONTAINER ASSY

The following Table sh ows all parts necessary to perform this SB work

New PNR Keyword Old PNR Type of Container / Qty/Container Price

22C15 22C 22

E63282

- 01 Manifold 2P E63282

- 01 1 FOC

E63281

- 00 Manifold 2 P E63281

- 00 1 FOC

E71070

- 00 Pin,Grooved

(as required) E71070

- 0 0 2 2 FOC

E20274

- 06 O

- Ring E20274

- 06 1 1 FOC

E61063

- 00 Disc, Spring l oaded

(as required) E61063

- 00 1 1 FOC

E63047

- 00 Cable Tie E63047

- 00 1 FOC

D

. TOOLING

– PRICE AND AVAILABILI TY

S p ecial Tool s Part Number Price /

Availability S ource

Manual Releas e Tool E60100

- 00 (D1379)

Rubber bands

- - - - Local Purchase

Mask Hose Assembly Tool 2231070 (D1379)

Cutter Knife , Hose Cutter

- - - - Local Purchase

Removal Tool (removal of grooved pins) E61088

- 00 (D1379)

Marker, permanent (green color) STABILO

- - Local Purchase

Pointed Pliers

- - Local Purchase

Pliers (Wa r ning Flag installation) E71516

- 00 (D1379)

Warning Flag Assembly (as required) E71401

- 00 (D1379)

Cable Tie Pliers 2231453 (D1379)

## SERVICE BULLETIN 22 CXX

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- 003 3

. ACCOMPLISHMENT INSTRUCTIONS

A. GENERAL

General ser vice information is given within the component maintenance manuals.

WARNING: STRICTLY OBEY THE PR OCEDURES FOR THE USE OF OXYGEN

EQUIPMENT. DO NOT USE ANY OIL, GREASE, HYDRO CARBON S OR OTHER LUBRICANTS MADE FROM PETROLEUM IN THE WORK AREA OF THIS OX YGEN EQU IPMENT. THIS CAN CAU SE A DANGEROUS FIRE HAZAR D.

B. LIST OF MATERIALS

New PNR Keyword Old PNR Type of Container / Qty /Container Inst/Disp

22C15 22 C22

E63282

- 01 Manifold 2P E63282

- 01 1 Replaced

E63281

- 00 Manifold 2P E63281

- 00 1 Replaced

E71070

- 00 Pin, Grooved

(as required) E71070

- 00 2 2 On Condition

E20274

- 06 O

- Ring E20274

- 06 1 1 Replaced

E61063

- 00 Disc, Spring

loaded (as required) E61063

- 00 1 1 On Condition

E63047

- 00 Cable Tie E63047

- 00 1 FOC

## SERVICE BULLETIN 22 CXX

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- 003 Special Tools Part Number Source

Manual Release T ool E60100

- 00 (D1379)

Rubber bands

- - Local Purchase

Mask Hose Assembly Tool 2231070 (D1379)

Cutter Knife, Hose Cutter

- - Local Purchase

Pin Removal Tool ( for grooved pins) E61088

- 00 (D1379)

Marker, permanent (green color) STABILO Local Purchase

Pointed Pliers

- - Local Purchase

Cable Tie Pliers 2231453 (D1379)

Pliers (Wa r ning Flag installation) E71516

- 00 (D1379)

Warning Flag Assembly (as required) E71401

- 00 (D1379)

## SERVICE BULLETIN 22 CXX

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- 003 FOR 22 C15

- 0100 CONTAINER ASSEMBLIES (SB ACCOMPLISHMENT O N AIRCRAFT OR IN T HE WORKSHOP )

C. DISASSEMBLY

WARNING : STRICTLY OBEY THE PROCEDURES FOR USE OF OXYGEN

EQUIPMENT. DO NOT USE ANY OIL, GREASE OR OTHER LUBRICANTS MADE FROM PETROL IN THE WORK AREA OF THIS OXYGEN EQUIPMENT. THIS CAN CAUSE A DANGEROUS FIRE HAZARD RESULTING IN SE RIOUS PERSONAL INJURY OR DEATH.

CAUTION : IN GENERAL THE WORK ON OXYGEN EQUIPMENT REQUIRES THE

USE OF LINT

- FREE GLOVES. HOWEVER SOME STEPS OF THIS REWORK MAY BE HINDER ED WHEN WEARING GLOV ES. THEREFORE THIS REWOR K IS RECOMMENDED TO BE DONE WITH DRY AND CLEAN FINGERS. ENSURE YOUR FINGERS ARE DRY AND CLEAN.

(1) Open the Door Assy as follows:

CAUTION : EXERCISE CAUTION WIT H THE CONTAINER DOOR. IT IS SPRING

LOADED

, CAN SNAP AWAY AND PU SH OUT THE MASK ASSEMBLIES. SET THE TEST LEVER I NTO TEST POSITION ( HOLD THE DOOR BY HAND ) WHEN YOU RELEASE IT WITH THE RELEASE TOOL PNR E60100

- 00. AFTER RELEASE LE T THE DOOR CAREFULLY AND SLOWLY MOVE INTO ITS FULLY OPEN POSIT ION.

CAUTION : EXERCISE CAUTION WIT H THE MASK LANYARDS WH EN YOU OPEN

THE DOOR ASSY, AN AC CIDENTAL PULL CAN RE MOVE T HE RELEASE PIN FROM THE OXYGEN GENERATOR ASS Y AND START THE FLOW OF OXYGEN T HAT CANNOT BE STOPPE D.

(a) Set the test button into the test position

. (b) Put the manual release tool PN R E60100

- 00 into the release access hole of the door assembly . Un lock the door lat ch with a slight push. The door must open a few degrees ( See Figure 1 ).

(c) Remove the manual release tool PNR E60100

- 00 from the manual release access hole.

CAUTION : EXERCISE CAUTION WIT H THE MASK ASSEMBLIES. WHEN

YOU OPEN THE CONTAIN ER DOOR THE MASKS WI LL FALL OUT AND BECOME UNCOI LED. PREFERABLY OPEN THE DOOR WITH A SECOND P ERSON THAT KEEPS THE MASKS INSIDE THE CONTAINER

.

## SERVICE BULLETIN 22 CXX

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- 003 (d) Hold the door in position by hand and reset the test button back to its operational position. Carefully let the door move into its fully open position (min. 180 ° ). Make sure the masks do not become uncoiled.

Figure 1

(e) P ut a rubber band around the packed mask assemblies. This makes sure the mask tubes do not become uncoiled and the breathing bags are held in position within the mask facepiece (See Figure 2 ).

Figure 2

CAUTION : EXERCISE CAUTION WIT H THE MASK LANYARDS WH EN

YOU DISCONNECT THEM FROM THE SNAP HOOKS OF THE MASKS

. AN ACCIDENTAL PULL C AN REMOVE THE RELEAS E PIN FROM THE OXYGEN GENERAT OR ASSY AND START THE FLOW OF OXYGEN T HAT CANNOT BE STOPPE D. R ubber Band

## SERVICE BULLETIN 22 CXX

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- 003 (f) Disconnect the white mask lanyard s from the masks.

(3) Removal of the Manifold

(a) Use the Pin Removal Tool PNR E61088

- 00 and carefully push the two grooved pins out until you can catch them with a po inted plier as shown on Figure 3

. Then fully pull out the grooved pins from the manifold.

Figure 3

(b) C arefully remove (by slightly turning and pulling) the manifold together with the mask hoses f rom the oxygen generator.

(c) Remove the disc together with the compression spring f rom the manifold (See Figure 4). Pin Removal Tool E61088

- 00

Manifold Mask Hose

## SERVICE BULLETIN 22 CXX

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- 003 Figure 4

(d) Use a Hose Cutter and cut the mask hoses at the fitting end (maximum distance of 2 mm to the fitting end) of the manifold (See Figure 5)

.
CAUTION : ENSURE THAT THE RE MAINING MASK H OSES ARE CLEAN

FROM ANY ABRASION. R EMOVE ANY ABRASION I F REQUIRED.

Figure 5
(e) Discard the manifold

. (f) Remove the O

- ring PNR E20274

- 06 from the first groove of the oxygen generator outlet port. Discard the O

- ring. (See Figure 6) Hose Cutter

Mask Hose Manifold Manifold

Compression Spring Disc Silicone Rin g

## SERVICE BULLETIN 22 CXX

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- 003 Figure 6 O

- ring

E20274

- 06

O

- ring location:

- first groove

## SERVICE BULLETIN 22 CXX

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- 003 FOR 2 2 C15

- 0100 CONTAINER ASSEMBLIES ( SB ACCOMPLISHMENT ON AIRCRAFT OR IN THE WORKSHOP )

D

. ASSEMBLY

WARNING : STRICTLY OBEY THE PROCEDURES FOR USE OF OXYGEN

EQUIPMENT. DO NOT USE ANY OIL, GREASE OR OTHER LUBRICANTS MADE FROM PETROL IN THE WORK AREA OF THIS OXYGEN EQUIPMENT. THIS CAN CAUSE A DANGEROUS FIRE HAZARD RESULTING IN SERIOUS PERSONAL INJURY OR DEATH.

CAUTION : IN GENERAL THE WORK ON OXYGEN EQUIPMENT REQUIRES THE

USE OF LINT

- FREE GLOVES. HOWEVER SOME STEPS OF THIS REWORK MAY BE HINDER ED WHEN WEARING GLOV ES. THEREFORE THIS REWOR K IS RECOMMENDED TO BE DONE WITH DRY AND CLEAN FINGER S. ENSURE YOUR FINGE RS ARE DRY AND CLEAN.

(1) I n stallation of the Manifold

(a) Put a new O

- ring in the first gro o ve of the oxygen generator outlet port (See Figure s 6 and 7 ).

Figure 7

C AUTION : ALWAYS USE A NEW MANIFOLD. A DEFECTIVE MANIFOLD

MAKES THE OXYGEN GEN ERATOR U N SERVICEABLE.

(b) If the used ma nifold has free flow and no damage
, you can use it again.

CAUTION : ENSURE THAT THE MANI FOLD IS EQUIPPED WIT H A BLUE SILICON

RING USED AS A SAFE TY RELIEF VALVE AS S HOWN IN FIGURE 4. Outlet port O

- ring E20274

- 06

## SERVICE BULLETIN 22 CXX

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- 003 (c) Move the mask hoses over the cylindrical part of the manifold fitting as shown on Figure 8

.

Figure 8

(d) Put the manifold together with the mask hoses on the Mask Hose Assembly Tool PNR

. 2231070

. (e) Moderately operat e the levers of the Mask Hose Assembly Tool PNR

. 2231070 and move the mask hoses on the fittings of the manifold until the tube touches the manifold housing as shown on Figure 9

. Do not use excessive force when pushing the hoses onto the fitting as this ma y damage the manifold or the Mask Hose Assembly Tool. Then remove the manifold from the Assembly Tool.

Figure 9

(f) If necessary, use a new spring loaded disc PNR E61063

- 00. Mask Hose

Manifold

Mask Hose

Manifold Mask Hose Assembly Tool PNR

. 2231070

## SERVICE BULLETIN 22 CXX

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- 003 CAUTION : MAKE SURE THE SPRING LOADED DISC PNR E6106 3

- 00 HAS

THE CORRECT POSIT ION. THE DISC MUST B E INSTALLED WITH THE COMPRESSION SPRING FIRST INTO TH E MANIFOLD. IF THE DIS C HAS NOT THE CORREC T POSITION THE OXYGEN GENERAT OR IS NOT SERVICEABLE.

(g) Put the assembled disc with the compression spring first into the manifold

. (S ee Figure s 4 and 1 0 )

.

Figure 1 0

CAUTION : DO NOT APPLY UNCONTR OLLED FORCE TO THE M ANIFOLD

DURING INSTALLATION AND EXERCISE CAUTION WIT H THE O

- RING PNR E20274

- 06. TOO MUCH FORCE C AN CAUSE DAMAGE TO THE O

- RING. ENSURE THAT TH E GROOVED PINS ARE IN THE CORR ESPONDI NG RECESS OF THE GENERATOR OUTLET. TH E GROOVED PINS MUST NOT BE PUSHED INTO THE O

- RING RECESS. A DEFEC TIVE O

- RING MAKES THE OXYGEN GEN ERATOR UNSERVICEABLE

. (h) C arefully install the assembled manifold on the generator outlet port. Do this by slightly turning a nd pushing (See Figure 1 1 ) . Make sure you do not damage the O

- ring PNR E20274

- 06. Compression Spring

Disc

## SERVICE BULLETIN 22 CXX

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- 003 Figure 1 1

(i) Attach the manifold to the generator outlet port with two grooved pins PNR E71070

- 00

. (2) Final Assembly

CAUTION : EXERCISE CAUTION WIT H THE MASK LANYARDS WH EN

YOU CONNECT THEM TO THE SNAP HOOKS OF THE MASKS. AN ACCIDENTAL PULL CAN REMOVE THE RELEASE PIN FROM THE OXYGEN GENERATOR AS SY AND START THE FLOW OF OXYGEN AND MASK SUPPLY TUBE S GOES OVER THE TOP SIDE OF THE EJECTOR CRADLE

. IF THE ROUTING OF THE LANYA RDS AND M ASK SUPPLY TUBES GOES BELOW THE EJECTOR CRADLE THE CONTAINER IS NOT SER VICEABLE

. (a) Use the pointed pliers to c onnect the mask lanyards to the snap hooks of the mask. Make sure you connect only one lanyard to each snap hook (See Figure 1 2 ) and the lanyard rou te goes over the top side of the ejector cradle.

## SERVICE BULLETIN 22 CXX

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- 003 Figure 1 2

(b) Remove the rubber bands from the masks.

(c) Restore the masks in the oxygen container assembly (preferably with a second person) as shown on the mask installation instruction lab el i n the ins ide of the container door.

CAUTION : MAKE SURE THAT NO IT EMS ARE BETWEEN THE DOOR

AND THE CONTAINER BE FORE YOU CLOSE THE D OOR. DO NOT APPLY UNCONTROLL ED FORCE TO THE DOOR DURING CLOSING. YOU CAN CAUSE DAMAGE TO THE DOOR. A DEFECTIVE DO OR MAKES THE CONTAIN E R UNSERVICEABLE.

CAUTION : MAKE SURE THE ROUTIN G OF LANYARDS AND MA SK

SUPPLY TUBES GOES OV ER THE TOP SIDE OF T HE EJECTOR CRADLE

. IF THE ROUTING OF THE LANYA RDS AND MASK SUPPLY TUBES GOES BELOW THE EJECTOR CRADLE THE CONTAINER IS NOT SER VICEABLE

. (d) Push the d oor down at its hinge side first until the sliding hinges are locked (small click).

(e) Set the door in closed position and push it tightly and gradually down on both sides ( in the area of the locking hooks ) until it is safely locked by the locking hooks with a click.

(f) Push the right hand side to set test button into the test position.
(g) Put the manual release tool PNR E60100 into the release access hole of the door. Unlock the door latch with a slight push. The door must open a few degrees and stops at the test position (held by the hook of the test button)

. Poi nted Pliers

Snap Hook Mask Lanyard

## SERVICE BULLETIN 22 CXX

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- 003 (h) Use a STABILO permanent marker and make a green dot on the inside of the test button as shown on Figure 1 3 . This dot shows that this Service Bull e tin has been successfully accomplished on the oxygen containe r.

Figure 1 3

(i) Push tightly and equally on both sides of the door until it locks at both l ocking hooks with a click. Green Dot Test Button in test position

## SERVICE BULLETIN 22 CXX

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- 003 FOR 22 C22

– 0100 CONTAINER ASSEMBLIES (SB ACCOMPLISHMENT I N A WORK

- SHOP)

E

. DISASSEMBLY

WARNING : STRICTLY OBEY THE PROCEDURES FOR USE OF OXYGEN

EQUIPMENT. DO NOT USE ANY OIL, GREASE OR OTHER LUBRICANTS MADE FROM PETROL IN THE WORK AREA OF THIS OXYGEN EQUIPMENT. THIS CAN CAUSE A DANGEROUS FIRE HAZARD RESULTING IN SERIOUS PERSONAL INJURY OR DEATH.

CAUTION : IN GENERAL THE WORK ON OXYGEN EQ UIPMENT REQUIRES THE

USE OF LINT

- FREE GLOVES. HOWEVER SOME STEPS OF THIS REWORK M A Y BE HINDERED WHEN W EARING GLOVES. THEREFORE THIS REWOR K IS RECOMMENDED TO BE DONE WITH DRY AND CLEAN FINGER S. ENSURE YOUR FINGE RS ARE DRY AND CLEAN.

(1) Put the oxygen container on a soft, clean and flat surface so that the door assy shows face up and the test button is in front of you.

(2) Open the Door Assy as follows:

CAUTION : EXERCISE CAUTION WIT H THE CONTAINER DOOR. IT IS SPRING

LOADED, CAN SNAP AWA Y AND PUSH OUT THE M ASK ASSEMB LIES. HOLD THE DOOR DOWN BY HAND (OR SET THE TEST LEVER INTO TEST POSI TION) WHEN YOU RELEA SE IT WITH THE RELEASE TOOL PNR E60 100

- 00. AFTER RELEASE LE T THE DOOR CAREFULLY AND SLOWLY MOVE INTO ITS FULLY OPEN POSITION.

CAUTION : EXERCISE CAUTION WIT H THE MASK LANYARDS WHEN YOU OP EN

THE DOOR ASSY, AN AC CIDENTAL PULL CAN RE MOVE THE RELEASE PIN FROM THE OXYGEN GENERATOR ASS Y AND START THE FLOW OF OXYGEN T HAT CANNOT BE STOPPE D.

(a) Set the test button into the test position.

(b) Put the manual release tool PNR E60100

- 00 i nto the release access hole of the door assembly. Unlock the door latch with a slight push (See Figure 1 4 ). The door must open a few degrees.

(c) Remove the manual release tool PNR E60100

- 00 from the manual release access hole.

CAUTION : EXERCISE CAUTION WIT H THE MASK ASSEMBLIES. WHEN

YOU OPEN THE CONTAIN ER DOOR THE MASKS WI LL FALL OUT AND BECOME UNC OILED. PREFER ABLY OPEN THE DOOR W ITH A SECOND PERSON THAT KEEPS THE MASKS INSIDE THE CONTAINER

.

## SERVICE BULLETIN 22 CXX

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- 003 (d) Hold the door down by hand and reset the test button back to its op erational position. Carefully let the door move into its fully open position (min. 180 ° ). Make sure the masks do not become uncoiled.

Figure 1 4

(e) Put a rubber band around the packed mask assemblies. This makes sure the mask tubes do not become uncoiled and the breathing bags remain in position within the mask facepiece (See Figure 1 5 ).

Figure 1 5

CAUTION : EXERCISE CAUTION WIT H THE MASK LANYARDS WH EN

YOU DISCONNECT THEM FROM THE SNAP HOOKS OF THE MASKS. AN ACCI DENTAL PULL CAN REMO VE THE RELEASE PIN FROM THE OXYGEN GENERATOR ASSY AND S TART THE FLOW OF OXYGEN T HAT CANNOT BE STOPPE D. R ubber Band

## SERVICE BULLETIN 22 CXX

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- 003 (f) Disconnect the white mask lanyards from the snap hooks of the masks

. (g) Carefully put the mask lanyards over the side wall to the outsi de of the container. Make sure you do not pull at the lanyards they are connected to the release pin (See CAUTION above Step ( f )).

(h) Remove the masks from the ejector cradle of the door and put them near to the container on a clean surface (See Figure 1 6 ).

(3) Removal of the Oxygen Generator from the Container (See Figure 1 6 )

(a) Pull the ejector cradle of the door loose from the hook fastener of the container (Velcro connection).

Figure 1 6 (15 Min

. Unit shown)

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- 003 (b) Loosen the generator mounting clamp.

(c) Hold the generat or mounting clamp back. Then carefully lift the oxygen generator together with the mask hoses from the container. Put the parts near the container on a dry, clean (free of oil) surface.

(d) Use pliers f lag E71516

- 00 to install the WARNING flag assembly on the oxygen generator starter side if required (See figure 17)

.

Figure 17

(4) Removal of the Manifold from the Oxygen Generator

(a) Use the Pin Removal Tool PNR E61088

- 00 and carefully push the two grooved pins out until you can catch them with a pointed plier as sho wn on Figure 1 8 . Then fully pull out the grooved pins from the manifold.

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Figure 1 8 (15 Min. Unit shown)

(b) Very carefully remove (by slightly turning and pulling) the manifold together with the mask hoses from the oxygen generator.

(c) Remove the disc PNR E60061

- 00 together with the compression spring PNR E61062

- 00 from the manifold (See Figure 1 9 ).

Figure 1 9

(d) Use a Hose Cutter and cut the mask hoses at the fitting end (maximum distance of 2 mm to the fitting end) of the manifold (See Figure 20 ). Manifold

Compression Spring Disc Pin Removal Tool E61088

- 00

Manifold Mask Hose

Silicone Ring

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- 003 Figure 20

CAUTION : ENSURE THAT THE REMA INING MASK HOSES ARE CLEAN

FROM ANY ABRASION. R EMOVE ANY ABRASION I F REQUIRED.

(e) Visually check the mask hoses for silicon abrasion (chips). Remove any abrasion if required.

(f) Discard the manifold

. (g) Remove the O

- r ing PNR E20274

- 06 from the first groove of the oxygen generator outlet port. Discard the O

- ring. (See Figure 2 1) Hose Cutter

Mask Hose Manifold

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Figure 2 1 ( 15 Min. Unit shown) O

- ring E20274

- 06

O

- ring location:

- first groove

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- 003 F

. ASSEMBLY

WARNING : STRICTLY OBEY THE PROCEDURES FOR USE OF OXYGEN

EQUIPMENT. DO NOT USE ANY OIL, GREA SE OR OTHER LUBRICANTS MADE FROM PETROL IN THE WORK AREA OF THIS OXYGEN EQUIPMENT. THIS CAN CAUSE A DANGEROUS FIRE HAZARD RESULTING IN SERIOUS PERSONAL INJURY OR DEATH.

CAUTION : IN GENERAL THE WORK ON OXYGEN EQUIPMENT REQUIRES THE

USE OF LINT

- FREE GLOVES. HOWEVER SOME STEPS O F THIS REWORK M A Y BE HINDERED WHEN W EARING GLOVES. THEREFORE THIS REWOR K IS RECOMMENDED TO BE DONE WITH DRY AND CLEAN FINGER S. ENSURE YOUR FINGE RS ARE DRY AND CLEAN.

(1) Installation of the Manifold

(a) Put a new O

- ring in the first groove of t he oxygen generator outlet port (See Figure s 2 1 and 2 2 ).

Figure 2 2 (15 Min. Unit shown )

CAUTION : IF YOU ARE NOT SURE THE MANIFOLD IS SERV ICEABLE OR

NOT, ALWAYS USE A NEW MANIFOLD. A DEFECTIVE MANIFOLD MAKES THE O XYGEN GENERATOR U N SERVICEABLE.

(b) If the used manifold has free flow and no damage, you can use it again.

CAUTION : ENSURE THAT THE MANI FOLD IS EQUIPPED WIT H A

BLUE SILICON RING US ED AS A SAFETY RELIE F VALVE AS SHOWN IN FIGURE 4

. (c) Move the mask hoses over the recessed part of the manifold fitting as shown on Figure 2 3. Outlet port O

- ring E20274

- 06

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- 003 Figure 2 3

(d) Put the manifold together with the mask hoses on the Mask Hose Assembly Tool PNR . 2231070 .

Figure 2 4 Mask Hose

Manifold Fitting

Mask Hoses

Mask Hose Assembly Tool PNR

. 2231070

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- 003 (e) Moderately operate the levers of the Mask Hose Assembly Tool PNR

. 2231070 and move the mask hoses on the fi ttings of the manifold until the tube touches the manifold housing as shown on Figure 25

. Do not use excessive force when pushing the hoses onto the fitting as this may damage the manifold or the Mask Hose Assembly Tool. Then remove the manifold from the A ssembly Tool.

Figure 2 5
(f) Use the Cable Tie Pliers 2231453 (must be adjusted to a torque value of 120 N +/

- 10 N) and install the cable tie(s) PNR E63047

- 00 on the manifold fittings as shown on Figure 26 to 2 7

.

Figure 26 Mask Hose Assembly Tool PNR

. 2231070

Cable Tie PNR E60047

- 00

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- 003 Figure 27

(g) If necessary, use a new spring loaded disc PNR E61063

- 00

CAUTION : MAKE SURE THE SPRING LOADED DISC PNR E610 63

- 00 HAS

THE CORRECT POSITION . THE DISC MUST BE I NSTALLED WITH THE COMPRESSION SPRING FIRST INTO TH E MANIFOLD. IF THE DIS C HAS NOT THE CORREC T POSITION THE OXYGEN GENERAT OR IS NOT SERVICEABLE.

(h) Put the assembled disc with the compression spring first into the manifold. (See Figure 2 8 )

. Cable Tie Pliers PNR 2231453

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- 003 Figure 2 8

CAUTION : DO NOT APPLY UNCONTR OLLED FORCE TO THE M ANIFOLD

DURING INSTALLATION AND EXERCISE CAUTION WIT H THE O

- RING PNR E20274

- 06. TOO MUCH FORCE C AN CAUSE DAMAGE TO THE O

- RING. ENSU R E THAT THE GROOVED PINS ARE IN THE CORR ESPONDING RECESS OF THE GENERATOR OUTLET. TH E GROOVED PINS MUST NOT BE PUSHED INTO THE O

- RING RECESS. A DEFEC TIVE O

- RING MAKES THE OXYGEN GEN ERATOR U NSERVICEABLE.

(i) C arefully install the assembled manifold on the generator outlet port. Do this by slightly turning and pushing (See Figure 2 9 ) . Make sure you do cause damage to the O

- ring PNR E20274

- 06.

Figure 2 9 Compression Spring Disc PNR E61062

- 00

Manifold

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- 003 (j) Attach the manifold to the generator outl et port with two grooved pins PNR E71070

- 00.

(2) Installation of the Oxygen Generator into the Container (See Figure 30 )

CAUTION : EXERCISE CAUTION WIT H THE MASK LANYARDS DU RING

INSTALLATION OF THE OXYGEN GENERATOR. AN ACCIDENTAL PULL C AN REMOVE THE RELEAS E P IN FROM THE OXYGEN GENE RATOR ASSY AND START THE FLOW OF OXYGEN THAT CANNOT BE STOPPED.

(a) Put the oxygen generator between the arms of the generator mounting clamp into the container assembly (let the masks stay outside the container)

. Make sure the HOT label shows face up

. (b) Put the mask lanyard ends temporarily over the side wall of the container.

(c) Move the oxygen generator with the starter side (the end with the release pin tightly into the hole of the lanyard pad )

.

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Figure 30 (15 Min

. Unit shown)

(d) Turn the c lamp screw of the generator mounting clamp to rear side wall of the container as sh own on Figure 30

. (e) Attach the oxygen generator with the generator mounting clamp. Use an applicable torque wrench and tighten the clamp screw to a torque value of 1,0 Nm (0.4 426 ft./lbf).

(f) Turn the release pin into a vertical position so that its eyelet shows face upward.

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- 003 (3) Final Assembly

(a) Put the ejector cradle of the door over the oxygen generator . P ress the loop strip of the ejector cradle on the hook fastener of the inner fro nt side wall of the container (See Figure 3 1 )

.

Figure 3 1

(b) Restore the masks in the oxygen container assembly as shown on the mask installation instruction lab el in the inside of the container door.

CAUTION : EXERCISE CAUTION WIT H THE MASK LANYARDS AN D THE

GENERATOR RELEASE LA NYARD WHEN YOU CONNE CT THEM TO THE SNAP HOO KS OF THE MASKS. AN ACCIDENTAL PULL CAN REMOVE THE RELEASE P IN FROM THE OXYGEN GENERATOR ASSY AND START THE F LOW OF OXYGEN THAT CANNOT B E STOPPED.

CAUTION : MAKE SURE THE ROUTIN G OF LANYARDS AND MASK

SUPPLY TUBES GOES OV ER THE TOP SIDE OF T HE EJECTOR CRADLE

. IF THE ROUTING OF THE LANYA RDS AND MASK SUPPLY TUBES GOES BELOW THE EJECTOR CRADLE THE CONTAINER IS NOT SER VICEABLE

. (c) Use the pointed pliers to connect the white mask lanyards to the snap hoo ks of the mask s . Make sure you connect only one lanyard to each snap hook (See Figure 3 2 ) and the lanyard route goes over the top side of the ejector cradle (See Figure 3 3 )

.

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- 003 Figure 3 2

Figure 3 3 (15 Min. unit shown) Pointed Pliers

Snap Hook M ask Lanyard

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- 003 (d) Put the masks on the top side of the ejector cradle into the container. Make sure the route of the mask lanyards and mask supply tubes goes over the top side of the ejector cradle (See Figure 3 3 ).

(e) Remove the rubber bands from the masks

. (4) Close the Door as follows

(a) Look into the unit be fore you close the door

. Make sure that:

- all rubber bands are removed from the masks.

- the mask assemblies, lanyards and mask supply tubes are installed on

- the top side of the ejector cradle
,

- that none of the masks elastic head bands, oxyg en supply tubes, nor lanyards will be closed in the door,

- the eyelet of the release pin shows face upward

. (b) Let the flag of the warning flag assy go out of the container at the starter side of the generator. Make sure that no lanyards or supply tube s lay on the warning flag.

(c) Turn the container so that the door actuator is on the right and the masks are in front of you.

CAUTION : MAKE SURE THAT NO IT EMS ARE BETWEEN THE DOOR

AND THE CONTAINER BE FORE YOU CLOSE THE D OOR. DO NOT APPLY UNCONTR OLLED FORCE WHEN YOU CLOSE THE DOOR. YOU CAN CA USE DAMAGE TO THE DO OR. A DEFECTIVE DOOR MAKES THE CONTAINER UNSERVICEABLE.

(d) Set the door to a 90 degree vertical position and p ush the door down until the sliding hinges are locked (small click).

(e) Carefully close the door and p ush it tightly and gradually down on both sides (in the area of the locking hooks) until it is safely locked by the two locking hooks

(f) Push the right hand side to set test button into the test position.
(g) Put the manual release tool PNR E60100

- 00 into the release access hole of the door. Unlock the door latch with a slight push. The door must open a few degrees and stops at the test position (held by the hook of the test button).

(h) Use a STABILO permanent marke r and make a green dot on the inside of the t est button as shown on Figure 3 4 . This dot shows that this Service Bull e tin has been successfully accomplished on the oxygen container.

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- 003 Figure 3 4

(i) Push tightly and equally on both sides of the door until it locks at both latch hooks Green Dot Test Button in test position