MSA G1 SCBA Manuel utilisateur

MSAsafety.com

Certified Air Mask Repair Education (C.A.R.E.) Manual

Regulator with Quick Acting Bypass

Order No.: 10180091/01

CR 800000024801

1000 Cranberry Woods Drive

Cranberry Township, PA 16066

USA

Phone 1-800-MSA-2222

Fax 1-800-967-0398

For your local MSA contacts please go to our website www.MSAsafety.com

WARNING!

Read this manual carefully before servicing the device. The device will perform as designed only if it is used

and maintained in accordance with the manufacturer's instructions. Otherwise, it could fail to perform as

designed and persons who rely on this device for their safety could sustain serious personal injury or death.

Please read and observe the WARNINGS and CAUTIONS inside. For any additional information relative to

use or repair, call 1-800-MSA-2222 during regular working hours.

Contents

1 G1 Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 Replacement Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Removing the Regulator Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Installing the Regulator Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Removing the Regulator Hose Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.4 Installing the Regulator Hose Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.5 Removing the Regulator Spring and Spring Retainer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

2.6 Installing the Regulator Spring and Spring Retainer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.7 Removing the Diaphragm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.8 Installing the Diaphragm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.9 Disassembling the Bypass and Hose with Swivel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.10 Installing the Bypass and Hose with swivel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.11 Removing the Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.12 Installing the Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.13 Removing the Regulator Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.14 Installing the Regulator Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.15 Removing the E-Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.16 Installing the E-Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.17 Removing the Regulator Seal Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.18 Installing the Regulator Seal Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.19 Removing the Regulator Housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.20 Installing the Regulator Housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

G1 Regulator

1G1Regulator

1.1 Replacement Kits

Model 7-2779-1 Regulator Assemblies

Overhaul Kits

1.2 Required Tools and Equipment

Description Part

Number Purge QC

Hose

Cont.

Hose

G1 Replacement Regulator, Quick-Connect, Quick Acting Bypass 10180486 X X

G1 Replacement Regulator, Continuous, Quick Acting Bypass 10180487 X X

G1 Replacement Regulator, Quick-Connect (Solid), Quick Acting

Bypass 10180488 X

G1 Replacement Regulator, Continuous (Solid), Quick Acting Bypass 10180489 X

G1 Replacement Regulator, Quick-Connect, Regulator Side Only,

Quick Acting Bypass 10180490 X X

G1 Replacement Regulator, Quick-Connect (Solid), Regulator Side

Only, Quick Acting Bypass 10180491 X

Description Part Number

Regulator Overhaul Kit 10180113

Description Part Number

T40 Torx Bit (1/4”) 10176844

Adjustable TorqueVario, 10 - 50 in-lbs 10175879

Torque Control Square Drive Adapter Blade for 1/4"Sockets 10175880

Torx SoftFinish Driver T40 x 80 mm 10164581

Pliers, Snap Ring, Adjustable, 90 Degree 10164602

O-Ring Removal Tool 636060

Flat Blade Screwdriver

G1 Regulator

1.3 Parts List

Fig. 1 Exploded View

G1 Regulator

Item Quantity Description Part Number

1 3 O-RING, SILICONE, SIZE 12, RED 697453

2 1 SPRING, PD 10180070

3 1 DIAPHRAGM 10039172

4 1 SHIELD ASSEMBLY, FIREHAWK, CBRN 10044026

5 1 CAP, SPRING 10047528

6 2 O-RING, FKM, 75D, 8MM, GREEN 10162839-SP

7 2 O-RING, SILICONE, 70D, SIZE 008, ORANGE 10082499-SP

8A 1 COVER, G1 REGULATOR, NON-PURGE 10146190-SP

8B 1 COVER, G1 REGULATOR, PURGE 10146212-SP

9 1 BUTTON, BUDDY LIGHT, G1 REGULATOR 10146218-SP

10 1 BUTTON, ACTUATOR, GREY 10146220-SP

11 1 RETAINER, SPRING 10146229-SP

12 1 SPRING, BUTTON 10146237-SP

13 1 GASKET, SEAL, RING 10146238-SP

14 1 CONE, ADJUSTER 10146240-SP

15 1 KNOB 10146252-SP

16 1 RETAINER, NUT, KNOB 10146253-SP

17 1 BYPASS 10179026

18 1 COVER, SWIVEL, G1 REGULATOR, ELEK 10153346-SP

19 2 O-RING, EPDM, 80D, SIZE 007, BLACK 10153637-SP

20 1 O-RING, SILICONE, 70D, SIZE 013, ORANGE 10153638-SP

21 1 O-RING, SILICONE, 70D, SIZE 24, ORANGE 10153639-SP

22 1 RETAINER, RING, SNAP, EXTERNAL, 7/16 IN 10153642-SP

23 1 E-MODULE ASSEMBLY 10156469-SP

24 1 VALVE ASSEMBLY 10179024

25 1 U-CLIP, RETAINER 10159816-SP

26 A 1 G1 REG HOSE ASSEMBLY WITH QA BYPASS, CONT 10184318

26 B 1 G1 REG HOSE ASSEMBLY WITH QA BYPASS, QC 10184317

26 C 1 G1 REG HOSE ASSEMBLY WITH QA BYPASS, QC, REG SIDE 10184316

27 1 G1 REG HOUSING ASSEMBLY WITH RFID ELEC 10164892

28 1 G1 REG HOSE ASSEMBLY, QC, PRESS RED SIDE 10153621-SP

29 1 BUTTON ASSY, BUDDY LIGHT, G1 REGULATOR 10160363-SP

CONTAINS BUTTON, BUDDY LIGHT, G1 REGULATOR 10146218-SP

O-RING, SILICONE, 70D, SIZE 008, ORANGE 10082499-SP

O-RING, EPDM, 80D, SIZE 007, BLACK 10153637-SP

30 1 BUTTON ASSY, ACTUATOR, GREY 10160350-SP

CONTAINS BUTTON, ACTUATOR, GREY 10146220-SP

O-RING, SILICONE, 70D, SIZE 008, ORANGE 10082499-SP

O-RING, EPDM, 80D, SIZE 007, BLACK 10153637-SP

31 1 O-RING 633553

CHRISTO-LUBE 604070

LOCTITE 243 10110981

Maintenance and Care

2 Maintenance and Care

WARNING!

DO NOT attempt to maintain or repair the G1 SCBA while pressurized. Attempting to disassemble a pres-

surized SCBA can cause parts to become airborne or swing at very high rates of speed. Failure to follow

this warning can result in serious personal injury or death.

2.1 Removing the Regulator Cover

(1) Turn the regulator port side up.

(2) Press and hold the release buttons.

(3) Use a flat blade screwdriver to release the regulator

housing retaining tabs.

(4) Allow the cover, attached spring, spring cap, and CBRN

shield to drop into your palm.

CAUTION! Handle the CBRN Shield by the rim only to

avoid damage.

(5) Inspect the regulator cover, spring and CBRN shield.

a) Replace the regulator cover if cracked, burned or

otherwise damaged.

b) Replace the spring if static pressure is too high or too

low. (Not usually a part that would be replaced.)

c) Replace the CBRN shield and spring cap if torn,

cracked, or otherwise damaged.

Maintenance and Care

2.2 Installing the Regulator Cover

WARNING!

Visually inspect the U-clip to ensure that it is in place and has not become dislodged or fallen out of the

regulator housing before attaching the regulator cover. Ensure proper engagement of both retaining tabs by

visual inspection to ensure that the regulator cover is securely attached to the regulator housing. Failure to

follow this warning could cause the regulator to malfunction resulting in serious personal injury or death.

NOTE: Procedure applies to the purge and non-purge regulator cover.

(1) Push the regulator shut off buttons to ensure the valve

fork is set in the raised position.

NOTE: Ensure the diaphragm is seated securely over the

regulator housing. (See Installing the Diaphragm for instruc-

tions.)

(2) Apply a thin coating of Christo-Lube lubricant to the edge

rim of the diaphragm.

(3) Place the CBRN shield over the diaphragm assembly.

(4) Tap lightly on the top of CBRN shield to remove trapped

air.

(5) Replace spring cap.

(6) Place the end of the spring over the protrusion of the

CBRN shield.

(7) Press and hold the release buttons and ensure the

regulator cover is positioned over the buttons.

NOTE: The U-clip is designed to be held securely in place in

the regulator housing by the regulator cover once the regulator

cover is attached.

Maintenance and Care

(8) Push the regulator cover, spring, and spring retainer onto

the regulator housing until the retaining tabs snap into

place.

(9) Visually inspect the tabs. Make sure both are properly

engaged.

Maintenance and Care

2.3 Removing the Regulator Hose Assembly

(1) Remove the regulator cover. (See Removing the Regulator Cover for instructions.)

NOTE: It is not necessary to remove the diaphragm.

(2) Use a 2mm punch to push the U-clip post through the

regulator housing and remove the U-clip.

NOTE: Use extreme caution to not damage the diaphragm.

(3) Unscrew the bypass knob from the bypass port.

a) Remove the bypass and hose with swivel from the

regulator.

NOTE: Any time the bypass assembly is removed from the

regulator housing, replace the O-rings on the bypass stem and

electronic connector.

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