Operating Manual
G1 Facepiece
Order No.: D2058000/04
MSAsafety.com
MSA Europe GmbH
Schlüsselstrasse 12
8645 Rapperswil-Jona
Switzerland
info.ch@MSAsafety.com
www.MSAsafety.com
©
MSA 2019 All rights reserved
Contents
1 Safety Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Correct Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Liability Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Safety and Precautionary Measures. . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Mask Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Harness Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Component Housing Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 G1 Heads-Up Display (HUD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Filter Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Donning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Leak Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Removing the Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Spectacle Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Cleaning, Disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 Preparing the Mask for Cleaning or Disinfection. . . . . . . . . . . . . . . . 18
5.2 Suitable Cleaning and Disinfection Procedures . . . . . . . . . . . . . . . . 18
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1 Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.2 Maintenance Intervals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.3 Maintenance of the Exhalation Valve . . . . . . . . . . . . . . . . . . . . . . . . 20
Removing the Spring Retainer and Exhalation Valve . . . . . . . . . . . . 21
Installing the Spring Retainer and Exhalation Valve . . . . . . . . . . . . . 22
6.4 Replacing the Speech Diaphragm . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.5 Tightness Test of the Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.6 Visual Test and Function Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
GB
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7 Safekeeping and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.1 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.2 Spare Parts and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.3 ATO Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
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1 Safety Regulations
1.1 Correct Use
G1 Facepieces - hereafter called masks -are full face masks with a positive pressure connection.
They are not complete respiratory protective devices by themselves, but serve as facepieces
[EN 136 CL3+] for use with compressed air breathing apparatus of the G1 series and respiratory filters.
The mask as part of a respiratory protective device ensures an appropriately tight fit of the user’s face
against the ambient atmosphere.
When using a compressed air breathing apparatus, the operating manual for the compressed air
breathing apparatus must be read and observed.
If the mask is used as part of a filtering device using the filter adapter, respiratory protective filters
equipped with a standardized thread according to EN 148-1 must be used.The type and concentration
of contaminants and the oxygen concentration in the ambient air must be known to decide if the use of
a filtering device is permissible. The instructions for use of the respiratory filters have to be regarded,
including any information regarding the use in potentially explosive atmospheres. When in doubt use
a supplied air breathing apparatus. The permitted minimum oxygen concentration of ambient air
depends on national regulations.
When used in oxygen or an enriched-oxygen atmosphere, the increased potential hazard of flammability has to be regarded.
WARNING!
According to the European directive 89/656/EC it has to be verified before first use of the mask that a
correct size has been chosen (proper tight fit), that the mask can be worn in combination with other
protective equipment (for example a protective jacket), that it is a correct choice for the conditions at
the particular place of use and that it fulfils the ergonomic requirements.
Safety Regulations
WARNING!
Read this manual carefully before using 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.
Before use the product operability must be verified. The product must not be used if the function test
is unsuccessful, it is damaged, a competent servicing/maintenance has not been made, genuine MSA
spare parts have not been used.
1.2 Liability Information
MSA accepts no liability in cases where the product has been used inappropriately or not as intended.
The selection and use of the product are the exclusive responsibility of the individual operator.
Product liability claims, warranties also as guarantees made by MSA with respect to the product are
voided if it is not used, serviced, or maintained in accordance with the instructions in this manual.
Changes and modifications not expressly approved by the manufacturer will void the user’s authority
to operate the equipment.
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1.3 Safety and Precautionary Measures
• The device may be used in explosive atmospheres according to the class stated in the
ATEX certification, see chapter 2.5.
• The ATEX class of any other equipment used together with this device has to be regarded as well.
The lowest class sets the limit.
• If the device is used in an explosive atmosphere, dissipative clothes and footwear must be used
in conjunction with dissipative grounds. When used in explosive atmospheres there must be direct
contact between the head harness and the head. Do not use head coverings (e.g.fire hoods)
under the head harness.
• If the device is used in an explosive atmosphere, the neck strap has to be correctly attached to
the mask with carabiner hooks, see chapter 2.5. (The rubber neck strap has to be attached to the
metal rings of the harness, the textile neck strap has to be attached to the lens ring with carabiner
hooks.)
• Use and storage of the mask with Kevlar (textile) harness in a vincinity that generates strong electrostatic charges in explosive atmospheres is not allowed.
Safety Regulations
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2 Description
1
2
4
5
3
7
6
8
9b
9a
10
11a
11b
The inhalation air flows from the component housing of the mask past the inhalation valve to the inside
of the lens (thus keeping the lens fog-free) and then through the inlet valves into the nosecup.
The exhalation air passes through the exhalation valve directly to the ambient air.
Fixed Push-to-Connect component housing only: If in a safe atmosphere no demand valve is attached,
ambient air can be inhaled directly through an open port to facilitate breathing and speaking with no
resistance.
The faceblank is made of a special soft rubber compound and assures a snug, comfortable fit and a
tight seal. The mask and the nosecup are available in 3 sizes (small, medium, large).
The mask is available with different head harnesses and different component housings.
Description
Fig. 1 Overview (not true to size)
1 Forehead strap 8 Nosecup
2 Buckle 9a Head harness rubber
3 Faceblank 9b Head harness Kevlar
4 Light pipes, left (fixed Push-to-
Connect only)
5 Component housing 11a Nomex (textile) neck strap
6 Light pipes, right (fixed Push-to-
Connect only)
7Lens
10 Filter adapter
11b Rubber neck strap
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2.1 Mask Versions Harness Versions
The mask is available with different head harnesses; Kevlar (textile) 4-point or rubber (5-point).
The rubber head straps are numbered to indicate the correct tightening sequence.
Fig. 2 Kevlar (textile) harness
Description
Fig. 3 Rubber harness
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Component Housing Versions
The mask is available with different component housings:
Fig. 4 Fixed Push-To-Connect Fig. 5 Push-To-Connect
Description
Fig. 6 M45x3 Fig. 7 ESA
2.2 G1 Heads-Up Display (HUD)
When the mask version with the G1 fixed Push-to-Connect component housing is used in connection
with a G1 SCBA, the light pipes on the mask are part of the HUD. The HUD is integrated into the
demand valve and projects light into the mask.
The HUD provides the pressure and alarm status to the user through light pipes into the mask. The
pressure status is on the right side of the user, while the alarm status is on the left side of the user.
For details about the HUD, see G1 SCBA operating manual.
2.3 Filter Adapter
Using the filter adapter with the G1 fixed Push-to-Connect component housing, protective filters
equipped with a standardized thread according to EN 148-1 can be attached to the mask. The instructions for use of the respiratory filters have to be regarded, including any information regarding the use
in potentially explosive atmospheres.
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