RPB z4 User manual

INSTRUCTION MANUAL
Z4®
Employers: Read this manual and the ow control device Instruction
Manual and carry out the Employer Responsibilities (page 9.
Product users: Read this manual and the ow control device Instruction
Manual and follow the Product User Safety Instructions (page 11).
Make sure this manual is available to all users for reference.
Español: www.rpbsafety.com/product/Z4/
PROTECTING YOU FOR
LIFE’S BEST MOMENTS®
®

2
Z4®
CONTENTS
RPB® Safety LLC is an ISO9001 certied company.
EXPLANATION OF SIGNAL WORDS AND SYMBOLS 2
 INTRODUCTION 3
 IMPORTANT SAFETY INFORMATION
 PROTECTION PROVIDED AND LIMITATIONS 4
 RESPIRATORY COMPONENT DIAGRAMS - NIOSH CAUTIONS & LIMITATIONS 6
 AIR SOURCE 8
 EMPLOYER RESPONSIBILITIES 9
 PRODUCT USER SAFETY INSTRUCTIONS 11
 BREATHING AIR PRESSURE TABLE 14
 RESPIRATOR SETUP AND CARE 15
 DONNING AND DOFFING 33
 STORAGE 33
 COMMUNICATIONS
 COMMS-LINK™ COMMUNICATION SYSTEM 34
 RADIO CONNECTOR COMPATIBILITY 36
 PARTS AND ACCESSORIES 38
 WARRANTY AND LIABILITY STATEMENT 43
The following signal word and safety symbols are used in this manual and product labeling:
WARNING indicates a hazardous situation that, if not avoided, could
result in death or serious injury.
DANGER Indicates a hazardous situation that, if not avoided, will result in
death or serious injury.
Read the Instruction Manual.
Additional copies of RPB® manuals can be found at www.rpbsafety.com.
EXPLANATION OF SIGNAL WORDS AND SYMBOLS
WARNING
DANGER

3
RPB®SAFETY - GLOBAL HEADQUARTERS
2807 Samoset Rd, Royal Oak, MI 48073, USA.
T: 1-866-494-4599 F: 1-866-494-4509 E: [e-mail] rpbsafety.com
RPB®SAFETY - APAC
1 Ivan Jamieson Place, Christchurch Airport, Christchurch 8053 New Zealand.
T: [phone] F: [phone] E: [e-mail] rpbsafety.com
RPB®SAFETY - EMEA
Unit 2, Teardrop Industrial Park, London Road, Swanley, BR8 8TS, United Kingdom
T: [phone] E: [email protected] rpbsafety.com
Copyright ©2018 RPB Safety, LLC. All rights reserved. All materials contained on this
website are protected by United States copyright law and may not be reproduced, distributed,
transmitted, displayed, published or broadcast without the prior written permission of RPB
Safety, LLC. You may not alter or remove any trademark, copyright or other notice from copies of
the content.
All trademarks, service marks, and logos used in this publication, both registered and
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proprietary rights, whether registered or unregistered anywhere in the world, that are owned by,
developed in whole or in part by, or licensed by RPB Safety, LLC.
For technical assistance contact our Customer Service Department at 1-866-494-4599 or
email: [e-mail]
FORM #: 7.20.553
REV: 2
INTRODUCTION
The Z4® Weld Visor is a respirator for applications where there is a need for protection from
airborne contaminants, and eye/face protection; such as welding and grinding. Additionally,
the Vision-Link™ light attachment is available to provide light to the work area and the
COMMS-LINK™ in-helmet communication system allows for hands free radio communication.
Low prole, behind-the-neck style earmuffs may also be worn along with the Z4® Weld Visor.
This product must be inspected and maintained in accordance with this instruction manual at all
times.
See PROTECTION PROVIDED AND LIMITATIONS (page 4) for details.

4
Z4®
RESPIRATION
The RPB® Z4® is approved by NIOSH as a Type C respirator in the categories as follows:
Powered Air
Powered AIr Purifying Respirator, referred to as “PAPR” in this instruction manual. The RPB®
Z4® Respirator, when properly tted and used with all required components, including the
Breathing Tube Assembly and the 03-901 RPB® PX4 AIR® Powered Air Purifying Respirator, is a
NIOSH approved powered air purifying respirator with an assigned protection factor of 1000. As
such, it signicantly reduces, but does not completely eliminate, the breathing of contaminates
by the respirator wearer. Specic protection depends on the lter selected for use in the RPB®
PX4 AIR® PAPR (see PX4 AIR® Instruction Manual).
Supplied Air
Supplied Air Respirator, referred to as “SAR” in this instruction manual. The RPB® Z4®
Respirator, when properly tted and used with all required components, including the Breathing
Tube Assembly, Flow Control Device, and RPB® Breathing Air Line is a NIOSH approved
respirator with an assigned protection factor of 1000. As such, it signicantly reduces, but does
not completely eliminate, the breathing of contaminates by the respirator wearer. Use with an
airline lter, such as the 04-900 RPB® RADEX® Airline Filter, Specic protection depends on the
setup of the airline lter (see the RPB® RADEX® Instruction Manual). This respirator is approved
with the 03-101 Constant Flow Valve or the 03-500 C40® Climate Control Device.
HAZARD LIMITATIONS
The RPB® Z4® Respirator is NOT FOR USE IF:
 In atmospheres immediately dangerous to life or health (IDLH)
 Wearer cannot escape without the aid of the respirator.
PROTECTION PROVIDED AND LIMITATIONS
Improper selection, t, use, or maintenance of this product can result in
injury; life threatening delayed lung, skin or eye disease; or death.
This product is intended for occupational use in accordance with applicable standards or regulations
for your location, industry, and activity (see Employer Responsibilities, page 8). Familiarity with
standards and regulations related to the use of this protective equipment is recommended, even
if they do not directly apply to you. If self-employed or if used in a non-occupational setting,
refer to Employer Responsibilities and Product User Safety Instructions. Go to rpbsafety.com/
importantsafetyinformation/ for helpful links to OSHA and other content.
Employers: Read this manual and the air supply device Instruction Manual and carry out the
Employer Responsibilities (page 9).
Product users: Read this manual and the air supply device Instruction Manual and follow the
Product User Safety Instructions (page 11).
IMPORTANT SAFETY INFORMATION
WARNING

5
 Atmosphere contains less than 19.5% oxygen.
 In abrasive blasting applications.
 For protection against hazardous gases (e.g., carbon monoxide).
 Contaminants are in excess of regulations or recommendations.
 Contaminants or contaminant concentrations are unknown.
 Work area is poorly ventilated.
 The temperature is outside the range of 14°F to 140°F (-10°C to +60°C).
 A ammable or explosive atmosphere is present when used with systems including electrical
parts that are not intrinsically safe, - PX4 AIR®, Vision-Link™, 16-922 Comms-Link™ and 09-
913 PTT
FACE AND EYES:
 The Z4®Face Shield with Safety Lens meets ANSI/ISEA Z87.1 requirements and is designed
for grinding, and other industrial applications.
 The Z4®Welding Visor with Impact Lens and Auto-Darkening Welding Protection Filter
(ADF) meets ANSI/ISEA Z87.1 requirements and is designed to protect the operator’s face and
head against sparks and hazardous ultraviolet and infrared rays emitted during the welding
process. See “Auto-Darkening Welding Protection Filter” (page 28) for information about ADF
capabilities and use. Use an approved RPB® welding face seal or cape for adequate protection
from sparks, debris, and light ashes.
 The Z4® is not designed or tested to provide protection against molten metals or corrosive
liquids.
Note: Safety glasses may be required to be worn depending on the job hazard analysis. The
Z4® does not completely protect against the potential transfer of impact to glasses worn
underneath the Visor. It does not provide complete eye and face protection against severe
impact and penetration and is not a substitute for good safety practices and engineering
controls.
HEAD:
 The Z4® does not meet the ANSI/ISEA Z89.1 requirements for physical head protection as a
hard hat. Ensure the helmet is adjusted to properly t the user by adjusting the head harness
and sidepads, if installed.
HEARING:
The Z4® does not provide sufcient hearing protection, even when used with the optional
sidepads.
 Hearing protection, such as earplugs, may be worn and must be properly tted and worn
where noise levels exceed the OSHA permissible exposure levels.
 When used with the Z4®, low prole behind-the-neck earmuffs may provide some hearing
protection depending on the model that is being used. Refer to the earmuff’s instruction
manual to ensure proper wear, t, and protection level .

6
Z4®
FIGURE 1.1
1. RESPIRATOR
HELMET ASSEMBLY
2. BREATHING TUBE
ASSEMBLY
3. AIR SUPPLY
PX4 AIR®
NIOSH - CAUTIONS AND
LIMITATIONS
POWERED AIR
A. Not for use in atmospheres containing
less than 19.5 percent oxygen.
B. Not for use in atmospheres immediately
dangerous to life or health.
C. Do not exceed maximum use
concentrations established by regulatory
standards.
F. Do not use powered air-purifying
respirators if airow is less than 4CFM
(115lpm) for tight tting face pieces
or 6CFM (170lpm) for hoods and/or
helmets.
I. Contains electrical parts that may cause
an ignition in ammable or explosive
atmospheres.
J. Failure to properly use and maintain this
product could result in injury or death.
L. Follow the manufacturer’s User’s
Instructions for changing cartridges,
canister and/or lters.
M. All approved respirators shall be selected,
tted, used and maintained in accordance
with MSHA, OSHA, and other applicable
regulations.
N. Never substitute, modify, add or omit
parts. Use only exact replacement parts
in the conguration as specied by the
manufacturer.
O. Refer to user’s instructions, and/or
maintenance manuals for information on
use and maintenance of these respirators.
P. NIOSH does not evaluate respirators for
use as surgical masks.
S. Special or Critical User Instructions and/
or specic limitations apply. Refer to “S”
- Special or Critical User Instructions” in
the PX4 Air® Instruction Manual before
donning.
RESPIRATOR COMPONENT DIAGRAM - PAPR

7
NIOSH - CAUTIONS AND
LIMITATIONS
SUPPLIED AIR
A. Not for use in atmospheres containing
less than 19.5 percent oxygen.
B. Not for use in atmospheres immediately
dangerous to life or health.
C. Do not exceed maximum use
concentrations established by regulatory
standards.
D. Air-line respirators can be used only
when the respirators are supplied with
respirable air meeting the requirements of
CGA G-7.1 Grade D or higher quality.
E. Use only the pressure ranges and
hose lengths specied in the user’s
instructions.
J. Failure to properly use and maintain this
product could result in injury or death.
M. All approved respirators shall be selected,
tted, used and maintained in accordance
with MSHA, OSHA, and other applicable
regulations.
N. Never substitute, modify, add or omit
parts. Use only exact replacement parts
in the conguration as specied by the
manufacturer.
O. Refer to user’s instructions, and/or
maintenance manuals for information on
use and maintenance of these respirators.
S. Special or critical user’s instructions and/
or specic limitations apply. Refer to
user’s Instruction page 14 before donning.
PLACE NIOSH APPROVAL LABEL HERE.
FIGURE 1.2
1. RESPIRATOR
HELMET ASSEMBLY
2. BREATHING TUBE
ASSEMBLY AND
FLOW CONTROL
DEVICE
3. BREATHING
AIR LINE
RESPIRATOR COMPONENT DIAGRAM - SAR

8
Z4®
AIR SOURCE
Powered Air
Check that the contaminated area is within the limits of use for a Powered Air Purifying
Respirator and determine the type of contamination. Once the contamination level has been
conrmed you can then determine the lter cartridge to be used for the application, to make sure
that you are sufciently protected. Make sure that the area is well ventilated and that regular air
samples are taken to conrm the atmosphere stays within the levels recommended by OSHA
and other governing bodies. Follow the PX4 AIR® PAPR Instruction Manual for more details.
Supplied Air
Locate the air source in a clean air environment, always use a lter on the inlet of your air source.
Make sure the air source is somewhere that vehicles, forklifts, and other machinery are not
running near the air inlet, as this will cause carbon monoxide to be drawn into your air supply.
Always use suitable after coolers/dryers with lters and carbon monoxide alarms to ensure clean
breathable air is supplied at all times. A Radex® Airline Filter (04-900) and a GX4® Gas Monitor
(08-400) are recommended. The air should be regularly sampled to ensure that it meets Grade
D requirements.
AIR QUALITY
This respirator must be supplied with clean breathable air at all times. Breathable air must at
least meet the requirements for Type 1 gaseous air described in the Compressed Gas Association
Commodity Specications G.7.1 (Grade D or higher) and as specied by Federal Law 42 CFR 84,
subpart J.84.141(b) and 29 CFR 1910.134 (i). The RPB® Z4® does not purify air or lter contaminants.
A carbon monoxide monitor must be used at all times.
Do not connect the respirator’s air supply hose to nitrogen, toxic gases,
inert gases or other non-breathable air sources. Check the air source
before using the respirator. This apparatus is not designed for use with mobile air supply systems i.e.
cylinders. Connecting the supply hose to a non-breathable air source will result in serious injury or
death.
BREATHING AIR SUPPLY HOSES AND FITTINGS
RPB® air supply hoses and ttings must be used between the point of attachment and the
respirator breathing air connection at the wearer’s belt. The hose sections must be within the
correct length and the amount of sections must be within the number specied in the breathing air
pressure table on page 14.
BREATHING AIR PRESSURE
The air pressure must be continually monitored at the point of attachment. Air pressure must be
read from a reliable pressure gauge whilst the respirator has air owing through it.
AIR SOURCE, FITTINGS, AND PRESSURE
DANGER

9
EMPLOYER RESPONSIBILITIES
Your specic responsibilities may vary by location and industry, but in general RPB® expects that
employers will:
Follow all applicable standards and regulations for your location, industry, and activity.
Depending on your location and industry, a number of standards and regulations may apply to
your selection and use of respirators and other personal protective equipment. These may include
such things as federal (e.g., OSHA, MSHA, Canadian Occupational Health and Safety), local
(e.g., state, provincial), or military standards and regulations and consensus standards such as
ANSI and CSA. There are also requirements specic to particular contaminants, e.g. silica (see
rpbsafety.com/importantsafetyinformation/ for more information), asbestos, organic pathogens,
etc. Know which requirements apply to your location and industry.
Have appropriate safety programs in place.
Have and follow:
 A workplace safety program.
 A written respiratory protection program in accordance with applicable standards and
regulations (e.g., OSHA 29 CFR 1910.134; ANSI Z88.2; CSA Z94.4, etc.).
In accordance with the above,
Perform a hazard analysis and select appropriate equipment for each activity. A hazard
analysis should be performed by a qualied person. Controls should be in place as
appropriate and a qualied person should determine what kind of respiratory, face and eye,
head, and hearing protection is appropriate for the intended activities and environments
of use. (For example, select a respirator appropriate to the specic airborne hazards, with
consideration of workplace and user factors and with an Assigned Protection Factor (APF)
that meets or exceeds the required level for employee protection, select welding face and
eye protection appropriate to the type of welding to be done, etc.)
As applicable, check your workplace safety program, respiratory protection program, and
standards and regulations for your activity or industry for related protection requirements,
and see this manual (Protection Provided and Limitations, page 4) and the PX4 AIR® PAPR
or the ow control device Instruction Manual for product specications.
Be sure employees are medically qualied to use a respirator.
Have a qualied physician or other licensed health care professional (PLHCP) perform
medical evaluations using a medical questionnaire or an initial medical examination per
OSHA 29 CFR 1910.134.
Train employees in the Z4®’s use, maintenance, and limitations.
Appoint a qualied individual who is knowledgable about the RPB® Z4® per ANSI/ASSE
Z88.2 guidelines to provide training:
Section 8.1 Qualications of the Respirator Trainer. Anyone providing respirator training shall:
a) be knowledgable in the application and use of the respirator(s);
b) have practical knowledge in the selection and use of respirator(s) and work practices at
the site;

10
Z4®
c) have an understanding of the site’s respirator program; and
d) be knowledgable of applicable regulations.
Train each Z4® user in the product’s use, application, inspection, maintenance, storage, tting,
and limitations in accordance with the content of this Instruction Manual and the approved air
supply device Instruction Manual and standards or regulatory requirements. Ensure that each
intended user reads both of these manuals.
Ensure that equipment is properly set up, used, and maintained.
Make sure that equipment is properly set up, inspected, tted, used, and maintained,
including selection of the appropriate air lter cartridge and, when applicable, welding lter
shade adjustments, for the application.
Measure and monitor airborne contaminants in the work area.
Measure and monitor airborne contaminant levels in the work area in accordance with
applicable requirements. Make sure work area is well ventilated.
If you have any questions, contact RPB®.
 Call Customer Service Department at:
Tel.: [phone]
Email: [e-mail]
Web: rpbsafety.com
EMPLOYER RESPONSIBILITIES CONTINUED

11
PRODUCT USER SAFETY INSTRUCTIONS
BEFORE INITIAL USE - BE TRAINED AND MEDICALLY QUALIFIED
Do not use this respirator until you have read this manual and the PX4 AIR® PAPR Instruction
Manual (additional copies available at www.rpbsafety.com/resources/) and been trained in the
respirator’s use, maintenance, and limitations by a qualied individual (appointed by your employer)
who is knowledgable about the RPB® Z4® Respirator.
Do not wear this respirator until you have passed a medical evaluation using a medical questionnaire
or an initial medical examination by a qualied physician or other licensed health care professional
(PLHCP).
Allergens: No known common allergens are used in this product.
Some materials could cause an allergic reaction in susceptible individuals. If you have a known
allergy or develop irritation, inform your employer. Irritation may occur from lack of cleaning.
Following all cleaning and care instructions provided in the instruction manuals for this and any
other RPB® products you are using.
MAKE SURE THE SYSTEM IS READY FOR USE
Make sure you have a complete system. Verify that you have all required components for the Z4® to
serve as a complete NIOSH-approved respirator:
 Respirator Helmet Assembly (Z4®)
 Breathing Tube Assembly
PX4 AIR® PAPR or Flow Control Device with RPB® Breathing Air Line
See Respirator Component Diagram (page 6). The RPB® Z4® is only approved to be used with
the RPB®PX4 AIR® PAPR, RPB® C40® Climate Control Device, and the RPB® Constant Flow
Valve. Use only authentic RPB® brand parts and components that are part of the NIOSH approved
respirator assembly. Using incomplete or inappropriate equipment, including the use of counterfeit
or non-RPB® parts, can result in inadequate protection and will void the NIOSH approval of the entire
respirator. Do not modify or alter any part of this product.
Inspect all components daily for signs of damage or wear and tear that may reduce the level of
protection originally provided. Remove any damaged component or product, including any visor that
has been subject to impact, from service until repaired or replaced. Scratched or damaged safety
lenses or other components should be replaced with genuine RPB® brand replacement parts. When
safety and impact lenses are replaced, make sure to remove any additional protective lm from
both sides of the lens. If the lm is left in place, it could affect the optical clarity of the lens and cause
eye strain. Inspect the inside of the respirator for respirable dust or other foreign objects. Keep the
inside of the respirator clean at all times. Keep the air supply hose or PAPR assembly away from
equipment, vehicles, and other physical and chemical hazards.
Make sure that the helmet is correctly assembled in the conguration that suits your application.
Never use the respirator without all lenses in place. This includes the Safety Lens, Impact Lens,
the ADF, and the rear ADF Lens. These lenses, when installed properly, are part of the respiratory
seal to prevent toxic or hazardous gases, liquids or dust from entering the helmet. An incomplete or

12
Z4®
improperly installed lens system could provide inadequate impact and respiratory protection. See
Respirator Setup and Care (page 13). See Donning (page 31) for t information.
VERIFY THAT YOU HAVE THE APPROPRIATE EQUIPMENT FOR YOUR ACTIVITY
Verify that the Z4® provides appropriate protection for your activity. As applicable, check your
workplace safety program, respiratory protection program, and standards and regulations for your
activity or industry. (See PROTECTION PROVIDED AND LIMITATIONS, page 4.)
BEFORE DONNING THE Z4®:
Verify airborne contaminants are within recommended limits for respirator use:
 Determine the type and level of contamination. Verify that airborne contaminant
concentrations do not exceed those allowed by applicable OSHA, EPA, or NIOSH
regulations and recommendations for powered air purifying respirators.
Filtering the breathing air:
PAPR: Once the contamination level has been conrmed, determine the correct lter
cartridge to be used for the application, to make sure that you are sufciently protected.
Follow the PX4 AIR® PAPR Instruction Manual.
SAR: Once the contamination levels have been conrmed, check to make sure the airline
lter is working correctly. Follow the instruction manual for the lter that is used, such as the
Radex® Airline Filter.
Make sure the area is ventilated and monitored:
 Make sure that the area is well ventilated and that regular air samples are taken to conrm
the atmosphere stays within the levels recommended by OSHA and other governing bodies.
If you have any questions, ask your employer.
DO NOT ENTER THE WORK AREA if any of the following conditions exist:
 Atmosphere is immediately dangerous to life or health.
 You cannot escape without the aid of the respirator.
 Atmosphere contains less than 19.5% oxygen.
 A ammable or explosive atmosphere is present when used with systems including electrical
parts that are not intrinsically safe,- PX4 AIR®, Vision-Link™, 16-922Comms-Link™ and 09-
913 PTT
 Contaminants are in excess of regulations or recommendations.
 Contaminants or contaminant concentrations are unknown.
 Work area is poorly ventilated.
 The temperature is outside the range of 14°F to 140°F (-10°C to +60°C).
 The work area is a conned space (unless proper measures are taken for conned space welding).
 You taste, smell, or see contaminants inside the helmet
 You have any other reason to suspect that the respirator is not providing adequate protection
PRODUCT USER SAFETY INSTRUCTIONS CONTINUED

13
LEAVE THE WORK AREA IMMEDIATELY IF:
 Any product component becomes damaged
 Vision is impaired
 Airow stops or slows down, or alarm sounds. Do not use Powered Air Purifying Respirators if
airow is less than 6 cfm (170 lpm).
 Breathing becomes difcult
 You become dizzy, nauseous, too hot, too cold, or ill
 Your eyes, nose, or skin become irritated
PRODUCT CARE
Never place the helmet on hot surfaces. Do not apply paints, solvents, adhesives or self-adhesive
labels except as instructed by RPB®. This product may be adversely affected by certain chemicals.
See the “Respirator Setup and Care” section for cleaning instructions.
INSTRUCTIONS FOR SPECIFIC USES OR ENVIRONMENTS
Welding
See Respirator Setup and Care (page 13) and ADF Operation (page 27) for important safety-related
use and care information. Check the prescribed shade level for your welding application and adjust
your auto-darkening lter accordingly (see table with recommended shade levels, page 29). Never
place the auto-darkening welding lter (ADF) on hot surfaces. Do not expose the ADF to liquids and
protect it from dirt. See ADF storage, maintenance, and cleaning information (page 28).
Make sure the helmet completely blocks any accidental light. Make sure light can only enter the
front of the helmet through the viewing area of the auto-darkening welding lter.
Conned Spaces
Follow all procedures for conned space entry, operation, and exit as dened in applicable
regulations and standards.
Welding in Conned Spaces
Welding in a conned space can present an atmospheric hazard due to the generation of
contaminants and displacement of oxygen. Do not use the Z4® in conned spaces if the oxygen
concentration will be reduced below 19.5%.
A pressure-demand SCBA or a multifunctional pressure-demand supplied-air respirator with self-
contained air supply shall be used during welding in conned spaces when welding can reduce the
ambient oxygen level and supplemental ventilation and atmospheric monitoring are not provided
according to 29 CFR 1910.146 and ANSI/ASSE Z117.1. For more information on respirator types refer
to annex A.2 of ANSI/ASSE Z88.2.
Do not use the Z4®for welding without the Auto Darkening
Protection Filter in place. Do not weld with only the grinding lens. Improper use may cause
blindness or other permanent eye damage.
WARNING

14
Z4®
Make sure you understand the Breathing Air Pressure table before using
this respirator.
1. Determine your air source (column 1). OR Use the correct air source. Do not use an ambient air
pump, as it does not supply enough pressure (column 1).
2. Conrm the part number of the air supply hose you are using (column 2) and the ow control
device (column 3) you are using.
3. Check your RPB® Safety Air Supply Hose is within the correct length (column 4) and the
correct number of hose sections (column 5).
4. Set the air pressure at the point of attachment within the range specied (column 6).
Make sure air is owing through your respirator when setting the air pressure.
Failure to supply the minimum required air pressure at the point of attachment for the length of
air supply hose could result in contaminants being inhaled as the pressure in the helmet may
become negative due to peak inhalation ow when working at very high work rates.
If the Breathing Air Lines and Flow Control Device have RZ
™ ttings, they will only attach to other
RZ™ ttings. They will not work with Universal Couplers. Do not modify air line ttings. RZ
™ ttings
prevent connection to unsafe air sources.
WARNING
S - SPECIAL OR CRITICAL USERS INSTRUCTIONS - SAR TABLE 1.1
This table lists air pressure ranges needed to provide the RPB® Z4® with the volume of air that
falls within the required range of 6-15cfm or 170-425 lts/min according to U.S government
regulations.
BREATHING AIR PRESSURE TABLE
1. AIR
SOURCE
2. AIR
SUPPLY HOSE
3. BREATHING TUBE
ASSEMBLY AND FLOW
CONTROL DEVICES
4. SUPPLY
HOSE
LENGTH (FT)
5. MAX
NUMBER
OF
SECTIONS
6.
PRESSURE
RANGE
(PSIG AIR)
04-833 Breathing Tube
03-101 Constant Flow
Valve Assembly (High
Pressure)
25
50
100
150
200
250
300
1
1
2
3
4
5
6
10 - 14
12 - 14
17 - 19
21 - 23
25 - 27
28 - 31
31 - 34
04-833 Breathing Tube
03-500 Climate Control
Assembly
25
50
100
150
200
250
300
1
1
2
3
4
5
6
50 - 80
55 - 85
60 - 95
65 - 95
70 - 100
75 - 100
85 - 100
Portable or
Stationary
Compressor
NV2028 (25ft)
NV2029 (50ft)
NV2027 (100ft)
04-352-25-RZ (25ft)
04-352-50-RZ (50ft)
04-352-100-RZ (100ft)

15
RESPIRATOR SETUP AND CARE
Screw the breathing tube (04-837) onto the
threaded air intake on the side of the Z4®
Weld Visor and screw the breathing tube in
completely without over tightening.
Insert the bayonet end of the breathing tube
into the outlet of the PX4 AIR® PAPR and
twist it in until it is secure.
FOR USE WITH RPB®PX4 AIR®PAPR - SEE THE PX4AIR®INSTRUCTION MANUAL
When the Z4® Respirator is being used in conjunction with the RPB® PX4 AIR® PAPR, please
refer to the RPB® PX4 AIR® PAPR Instruction Manual for set up and use of the assembly.
Note: The RPB® PX4 AIR® is a Powered Air Purifying Respirator, therefore care must be taken
when selecting the correct lter for the application the respirator will be used in.
BREATHING TUBE
FIGURE 2.1
FIGURE 2.2
POWERED AIR

16
Z4®
RESPIRATOR SETUP AND CARE CONTINUED
With air owing through the respirator, adjust
the air pressure at the point of attachment to
the recommended pressure as specied in
the Breathing Air Pressure Table (page 10).
Connect the Breathing Air Supply Hose to the
point of attachment (04-900 Radex® Airline
Filter) shown.
SUPPLIED AIR
Connect the Air Supply Hose to the ow
control device. Screw the breathing tube one
without over tightening.
Now connect the Breathing Air Supply Hose
to the Flow Control Device. Air should be now
owing through the Respirator.
FIGURE 2.3
FIGURE 2.4
FIGURE 2.6FIGURE 2.5
The Z4®Supplied Air Respirator must be supplied with respirable
air meeting the requirements of CGA G-7.1 Grade D or higher quality
and meets OSHA or other governing body requirements.
WARNING
NOTE:
Check the hose connections for any air leaks and tighten if necessary – replace any worn parts.

17
Place the green ADF Retainer back over the
Impacts Lens by inserting the bottom guides
and rotating in until the clips are securely
snapped in place.
To replace the Impact Lens, lift up the Weld
Visor, unlatch the green ADF Retainer from
the Face Shield by pushing the tabs apart and
pushing forward.
Insert a new Impact Lens by removing
the protective lm on both sides and then
squeezing it from the sides to insert it under
the side tabs on the Weld Visor.
Remove the Impact Lens by squeezing the
lens to remove it from the tabs on the sides.
IMPACT LENS REPLACEMENT
FIGURE 3.1 FIGURE 3.2
FIGURE 3.3 FIGURE 3.4

18
Z4®
Follow steps 3.1 and 3.2 remove the ADF
Retainer and the Impact Lens.
Press the down on the clip at the bottom of
the ADF so that the ADF can slide out.
ADF LENS REPLACEMENT AND CLEANING
FIGURE 4.1 FIGURE 4.2
Once removed, the ADF can be cleaned
with a soft tissue or a cloth soaked in mild
detergent (or alcohol).
FIGURE 4.3
To replace the Rear ADF Lens, slide the lens
out and replace it with a new one.
FIGURE 4.4
RESPIRATOR SETUP AND CARE CONTINUED

19
MAGNIFYING LENS
To install the magnifying lens for welding,
slide the lens up into the brackets at an angle
until it is securely in the brackets.
With the screws supplied, screw the left lens
bracket into place by tightening the screws
rmly without over tightening. Then screw in
the right bracket.
FIGURE 5.2FIGURE 5.1
Place the cleaned or new ADF Lens into the
Weld Visor with the solar panel towards the
bottom and clip it in. Then replace the Impact
Lens and reattach the green ADF Retainer.
FIGURE 4.5
Place the green ADF Retainer back over the
Impacts Lens by inserting the bottom guides
and rotating in until the clips are securely
snapped in place.
FIGURE 4.6

20
Z4®
From the inside of the Weld Visor, unclip and
rotate the side windows to the outside.
FIGURE 6.2
SIDE WINDOW REPLACEMENT
From the outside of the Weld Visor, rotate
in the replacement side windows, making
sure they are fully pressed in with no light
showing around the edges.
FIGURE 6.3
To replace the side windows, lift up the weld
visor, unlatch the green ADF Retainer from
the Face Shield by pushing the tabs apart and
pushing forward.
FIGURE 6.1
Place the green ADF Retainer back over the
Impacts Lens by inserting the bottom guides
and rotating in until the clips are securely
snapped in place.
FIGURE 6.4
RESPIRATOR SETUP AND CARE CONTINUED