Miller AirArmor User manual


Auto-Darkening Helmets
Model: AirArmort
Cool BelttHelmet Cooling System
OM-235 368A
2009−12
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TABLE OF CONTENTS
SECTION 1 −HELMET COOLER SAFETY PRECAUTIONS −READ BEFORE USING 1
1-1. Symbol Usage 1
1-2. Hazards 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2 −BATTERY SAFETY PRECAUTIONS −READ BEFORE USING 3. . . . . . . . . . . . . .
2-1. Symbol Usage 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2. Hazards 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3 −HELMET COOLING SYSTEM 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1. Helmet Cooling System Specifications 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2. Installing Headgear And Shroud 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3. Charging The Battery 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4. Installing The Battery 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5. Installing The Filter 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6. Attaching The Connecting Hose 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-7. Operating The Controls 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-8. Checking The Helmet Cooling System Before Use 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9. Putting On The Helmet Cooling System 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-10. Changing Hose Length 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-11. Replacing Belt 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-12. Maintenance And Storage 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-13. Helmet Cooling System Troubleshooting 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4 −PARTS LIST 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5 −LIMITED WARRANTY 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OM-235 368 Page 1
SECTION 1 −HELMET COOLER SAFETY PRECAUTIONS −
READ BEFORE USING
Protect yourself and others from injury — read and follow these precautions.
1-1. Symbol Usage Helmet Cooler 2009−10
This group of symbols means Warning! Watch
Out! ELECTRIC SHOCK, MOVING PARTS,
and HOT PARTS hazards. Consult symbols
and related instructions below for necessary
actions to avoid the hazards.
.Indicates special instructions.
DANGER! −Indicates a hazardous
situation which, if not avoided, will
result in death or serious injury. The
possible hazards are shown in the
adjoining symbols or explained in
the text.
Indicates a hazardous situation
which, if not avoided, could result in
death or serious injury. The possible
hazards are shown in the adjoining
symbols or explained in the text.
NOTICE −Indicates statements not related to
personal injury.
1-2. Hazards
Only qualified persons should install, operate, maintain, and repair this unit.
READ INSTRUCTIONS.
DRead and follow all labels and the Owner’s Manual carefully before installing,
operating, or servicing unit. Read the safety information at the beginning of
the manual and in each section.
DUse only genuine replacement parts from the manufacturer.
DPerform maintenance and service according to the Owner’s Manuals, industry standards,
and national, state, and local codes.
HELMET COOLER MISUSE can be hazardous.
Welding produces fumes and gases. Breathing these fumes and gases can be haz-
ardous to your health.
DRead and follow these instructions and the safety labels carefully. This
product is intended for use as a cooling device only. It is not a respiratory protective device and
does not protect the user from airborne contaminants. Have an industrial hygienist test the air in
your facility to determine if respiratory protection is required to provide adequate protection from
contaminants in your environment. With cooling system-equipped helmet on, also test the air in-
side the helmet to determine if respiratory protection is required. If you have questions about the
type of respiratory protection equipment required, consult your safety director and an Industrial
Hygienist.
DDo not use this product where there is danger of fire or explosion.
DDo not use this product in windy conditions or negative pressure inside the hood may draw in
contaminants from the outside air.
DDo not use this product without a properly installed spark guard unless the unit is designed and
intended to be used without one. Without the spark guard (on applicable products), welding
sparks may ignite the filter or damage the filter.
DThis product does not supply oxygen. Do not use this product where oxygen levels are 19.5% or
lower, where contaminant levels are unknown or are immediately dangerous to life or health
(IDLH), or where the contaminant levels exceed the equipment specifications.
DDo not enter a work area until you are sure the equipment is correctly assembled, working proper-
ly, and properly worn.

OM-235 368 Page 2
DBefore each use, inspect the equipment for damage and verify it operates properly.
DDangerous contaminants may not smell or be visible. Leave the area immediately if you notice
the following:
Breathing becomes difficult.. . .
You experience dizziness, impaired vision, or eye, nose, or mouth irritation.. . .
The equipment is damaged.. . .
DDo not repair, modify, or disassemble this product or use with parts or accessories not supplied by
the manufacturer.
DDo not operate unit without properly installed filter(s). Replace damaged or clogged filters. Do not
wash or reuse filters. Do not clean filters by tapping or with compressed air or filter elements may
be damaged.
DDo not restrict or alter helmet cooler air flow. Do not block air inlet or outlet. Be sure safety
glasses, hair, weld cap, and other objects do not block air flow.
DThis product contains electrical parts which have not been evaluated as an ignition source in
flammable or explosive atmospheres by MSHA/NIOSH.

OM-235 368 Page 3
SECTION 2 −BATTERY SAFETY PRECAUTIONS −
READ BEFORE USING
Protect yourself and others from injury — read and follow these precautions.
2-1. Symbol Usage Small Batt 2009−1
0
This group of symbols means Warning! Watch
Out! ELECTRIC SHOCK, MOVING PARTS,
and HOT PARTS hazards. Consult symbols
and related instructions below for necessary
actions to avoid the hazards.
.Indicates special instructions.
DANGER! −Indicates a hazardous
situation which, if not avoided, will
result in death or serious injury. The
possible hazards are shown in the
adjoining symbols or explained in
the text.
Indicates a hazardous situation
which, if not avoided, could result in
death or serious injury. The possible
hazards are shown in the adjoining
symbols or explained in the text.
NOTICE −Indicates statements not related to
personal injury.
2-2. Hazards
Only qualified persons should install, operate, maintain, and repair this unit.
FIRE OR BATTERY EXPLOSION hazard.
DDuring operation keep everyone, especially children, away.
DDo not install or place charger on, over, or near combustible surfaces.
DDo not charge battery near flammables.
DExamine the battery before first use. Return battery to the manufacturer if bat-
tery is damaged, dirty, or emits an unusual odor.
DUse battery only with equipment with which it was supplied. Replace battery
only with battery specified in Owner’s Manual. Use of another battery may
present a risk of fire or explosion.
DKeep battery dry.
DDo not use or store the battery in extremely hot or humid conditions. See the Owner’s Manual
for specific operating and storage information.
DKeep battery away from fire, out of direct sunlight, and away from other sources of heat.
DDo not use or charge the battery if it has been dropped or damaged.
DDo not open, repair, disassemble, or modify the battery.
DCharge battery only with supplied charger in an open, well−ventilated location out of direct sun-
light and according to supplied instructions.
DDo not overcharge a battery or charge battery longer than specified. See the Owner’s Manual
for specific information on battery charging.
DDo not charge battery by connecting directly to AC receptacle. Do not connect battery charger
to automobile auxiliary power receptacle.
DDo not connect (short circuit) battery terminals to each other. Do not allow tools, conductive
materials, or other objects to touch both battery terminals at the same time.
DDo not weld on battery or fasten any objects to battery.
DDo not heat battery in a microwave oven or any other heating device.
DKeep battery away from sources of high voltage.
DDo not expose battery to static electricity.
DDo not use or mix battery with damaged or worn out batteries, or other types of batteries.

OM-235 368 Page 4
BATTERY ACID can BURN SKIN and EYES.
DReplace damaged battery.
DDo not touch materials from inside a damaged battery.
DFlush eyes and skin immediately with water.
READ INSTRUCTIONS.
DRead and follow all labels and the Owner’s Manual carefully before before
using the battery or battery charger. Read the safety information at the be-
ginning of the manual and in each section.
DDispose of battery according to local, state, and federal requirements. Do not dispose of bat-
tery in fire or water.
DContact the equipment manufacturer if you have any questions about the battery.

OM-235 368 Page 5
SECTION 3 −HELMET COOLING SYSTEM
Read and follow these instructions and the safety labels carefully. This product is in-
tended for use as a cooling device only. It is not a respiratory protective device and does
not protect the user from airborne contaminants. Have an industrial hygienist test the air
in your facility to determine if respiratory protection is required to provide adequate
protection from contaminants in your environment. With cooling system-equipped hel-
met on your head and cooling system operating, also test the air inside the helmet to
determine if respiratory protection is required. If you have questions about the type of res-
piratory protection equipment required, consult your safety director and an Industrial
Hygienist.
.Use the cooling system only with compatible Miller welding helmets (____list?___). See the weld-
ing helmet Owner’s Manual for information on helmet operation.
The helmet cooling system draws in air and blows it into the welding helmet shroud through a flexible
connecting hose. The system also generates a positive air pressure to help prevent contaminants
from entering the helmet. The system must include and/or be used with the equipment listed below:
DHelmet and head shroud
DConnecting hose
DBlower assembly with filtration system (spark guard and filter)
DBelt assembly
DBattery charger
The respirator equipment operates at temperatures from 32 to 104°F and provides air flow of 6+ CFM
(low speed) to 7 CFM (high speed) under normal conditions. Battery life is reduced when the unit is
used in a dirty environment. (The blower assembly Batt light goes on when battery power is low.)
3-1. Helmet Cooling System Specifications
Application Fits Most Miller Welding Helmets
Size (Blower Assembly) 6-5/8 x 6-1/2 x 2-3/8 in (169.4 x 164.1 x 57.4 mm)
Weight
(Blower Assembly w/Battery, Filter, Belt)
25.6 oz. (726 g)
Filter
.Filter is required for proper operation
of equipment, but does not provide
respiratory protection.
Use Miller Filter Only
(Miller Part No. 245 233)
Air Flow Low Speed: 6+ CFM (170+ LPM) minimum
High Speed: 7 CFM (200 LPM)
Operating Temperature 32°to 104°F (0°to 40°C)
Storage Temperature 23°to 131°F (−5°to 55°C)
Battery Type Rechargeable Lithium
Battery Charging Time Four hours
Battery Life 500 charges
Run time dependent on air flow rate and filter load.
Belt size Up to 48 in. (1458 mm)
Shroud Service Life Replace after 50 washings?

OM-235 368 Page 6
3-2. Installing Headgear And Shroud
After installing shroud,.
make sure there are no
gaps between shroud and
helmet edge.
1 Standard Headgear
2 Velcro Strip
3 Cooling System Headgear
4 Shroud
5 Velcro On Shroud
Remove knobs, o−rings, and
washers from standard
headgear. Remove headgear.
Use supplied towelette to clean
area inside helmet where Vel-
crowill be installed. Allow
cleaned area to dry.
Remove backing from Velcro.
Install Velcro strip 5/8 in. (1.5
cm) from edge of quick release
Elite and Titanium helmets. For
all other helmets, install Velcro
3/4 in. (2 cm) from edge of hel-
met.
Position cooling system
headgear in helmet. Install
headgear mounting screw in
headgear bottom hole (quick re-
lease Elite and Titanium hel-
mets) or top hole (all other hel-
mets).
Secure headgear with knobs,
o−rings, and washers.
Align Velcro on shroud with Vel-
cro strip inside helmet. Press the
Velcro surfaces securely to-
gether.
Check for gaps between shroud
and helmet. Reposition shroud
and Velcro if necessary.
.Remove shroud from hel-
met when using helmet with
the cooling system turned
off.
1
Ref. 231 425 / Ref. 804 111
2
3
Use bottom hole for
quick release Elite
and Titanium hel-
mets. Use top hole
for all other helmets.
4
5

OM-235 368 Page 7
3-3. Charging The Battery
Charge battery only.
with supplied charger
in an open, well−ven-
tilated location.
Do not allow battery.
to get wet. Do not at-
tempt to open the bat-
tery case.
Keep battery away.
from fire or heat.
.Charge battery before
first use or if battery has
not been used for five
days. If battery was not
used for three months
or longer, fully dis-
charge and recharge
battery twice (for optim-
al battery life).
.Dispose of battery at a
designated collection
facility.
.Battery charging stops
when battery is fully
charged.
1 Battery Terminal
2 Battery Charger
3 120 Volt AC Receptacle
(Not Shown)
Remove battery from blow-
er assembly (Section 3-4).
Connect charger cord to
battery terminal. Connect
charger to 120 volt AC re-
ceptacle.
The charger red light goes
on when battery is being
charged. When fully
charged, the charger green
light goes on. Charging nor-
mally takes about four
hours.
1
2

OM-235 368 Page 8
3-4. Installing The Battery
Do not allow battery to get.
wet. Do not attempt to open
the battery case.
Keep battery away from fire.
or heat.
1 Battery
2 Blower Assembly
Slide battery into blower assembly
until it locks into position.
3 Battery Release
To remove battery, lift battery re-
lease while pulling battery away
from blower assembly.
1
2
3

OM-235 368 Page 9
3-5. Installing The Filter
Do not use the helmet cool-.
ing system without the spark
guard screen and filter in-
stalled.
Replace damaged or dirty fil-.
ter. Do not wash filter, clean
with compressed air, or re-
use dirty filter.
.Filter is required for proper op-
eration of equipment, but does
not provide respiratory protec-
tion.
1 Cover Release
2 Spark Guard Screen
3 Filter
Push on release to open cover.
Install screen in cover.
Install filter in recessed area on
blower housing.
.Install filter in recessed area on
blower housing, not in the cov-
er.
Close cover.
O
N /
O
FF
1
2
3

OM-235 368 Page 10
3-6. Attaching The Connecting Hose
Be sure connecting hose is.
properly installed or cooler
will not work properly.
1 Release Buttons
Align hose connector (round end)
with outlet on blower assembly.
Press release buttons and slide
hose connector over outlet until it
locks in position
2 Locking Tab
Push hose connector (rectangular
end) into helmet air inlet until hose
locks in position. (Locking tab
should be on outside of helmet air
inlet.
.Do not insert hose locking tab
into helmet inlet. Locking tab
should be on outside of helmet
air inlet.
1
2

OM-235 368 Page 11
3-7. Operating The Controls
Read and follow these instruc-.
tions and the safety labels
carefully. This product is in-
tended for use as a cooling de-
vice only. It is not a respiratory
protective device and does not
protect the user from airborne
contaminants. Have an indus-
trial hygienist test the air in
your facility to determine if
respiratory protection is re-
quired to provide adequate
protection from contaminants
in your environment. With
cooling system-equipped hel-
met on your head and cooling
system operating, also test the
air inside the helmet to deter-
mine if respiratory protection
is required. If you have ques-
tions about the type of respira-
tory protection equipment re-
quired, consult your safety di-
rector and an Industrial Hy-
gienist.
Do not restrict or alter helmet.
cooling system air flow. Be
sure safety glasses, hair, weld
cap, and other objects do not
block air flow.
1 On/Off Button
2 Low Speed Indicator
3 High Speed Indicator
4 Battery Level Indicator
To Start: Press On button for 1−2
seconds until alarm sounds and
blower starts.
The blower always starts at the low
speed. Press the On/Off button to
switch between Low and High
speeds.
To Stop: Press Off button for 2 −3
seconds until the audible alarm and
the blower stop.
The Battery Level indicator lights
when batter power is low. See Sec-
tion 3-3 for battery charging informa-
tion.
.The Battery Level indicator lights
for several seconds after blower
is started.
1
2
ON/OFF
FLOW
(LO/HI)
LOW HIGH
BATT
3
4

OM-235 368 Page 12
3-8. Checking The Helmet Cooling System Before Use
Read and follow.
these instructions
and the safety labels
carefully. This
product is intended
for use as a cooling
device only. It is not a
respiratory protec-
tive device and does
not protect the user
from airborne con-
taminants. Have an
industrial hygienist
test the air in your fa-
cility to determine if
respiratory protec-
tion is required to
provide adequate
protection from con-
taminants in your en-
vironment. With cool-
ing system-equipped
helmet on your head
and cooling system
operating, also test
the air inside the hel-
met to determine if
respiratory protec-
tion is required. If you
have questions about
the type of respirato-
ry protection equip-
ment required, con-
sult your safety direc-
tor and an Industrial
Hygienist.
Do not restrict or alter.
helmet cooling sys-
tem air flow. Be sure
safety glasses, hair,
weld cap, and other
objects do not block
air flow.
Before using the helmet
cooling system, check the
following items:
1 Filter And Spark
Guard (Section 3-5)
.Filter is required for
proper operation of
equipment, but does
not provide respiratory
protection.
Verify the filter and spark
guard are undamaged,
properly assembled, and
securely connected to the
blower assembly.
2 Flexible Hose (Section
3-6)
Be sure the hose is undam-
aged and properly con-
nected to the blower as-
sembly and shroud.
3 Battery (Sections 3-3
And 3-4)
Verify the battery is fully
charged and securely in-
stalled in the blower assem-
bly.
4 Air Flow (Section 3-7)
Turn on blower assembly
and test air flow at low and
high speeds.
5 Shroud (Section 3-2)
Inspect the shroud and re-
place if damaged. See
Troubleshooting (Section
3-13) if air is not being sup-
plied to front of helmet.
Put on helmet and adjust
helmet so helmet fits snugly
on head. Verify shroud is
properly installed on hel-
met.
.See the welding helmet
Owner’s Manual for
helmet adjustment in-
formation.
6 Fabric Shroud
(Section 3-2)
Inspect the shroud and re-
place if damaged. See
Troubleshooting (Section
3-13) if air is not being sup-
plied to shroud.

OM-235 368 Page 13
3-9. Putting On The Helmet Cooling System
Do not use the equipment.
belt or straps as a safety har-
ness.
Place blower assembly against
lower back with hose extending up-
wards. Fasten belt around waist.
Adjust belt so unit rests comfort-
ably against lower back.
Put on helmet and adjust helmet so
helmet fits snugly on head. Tighten
shroud drawstring to establish a
tight seal around head.

OM-235 368 Page 14
3-10. Changing Hose Length
The hose can be shortened to im-
prove comfort or meet personal re-
quirements.
1 Connector (Blower End)
2 Collar
Carefully pry collar away from con-
nector. Do not remove collar from
hose.
Cut hose to desired length. Turn
connector counterclockwise into
hose. Push collar on connector.
1
2
Tools Needed:

OM-235 368 Page 15
3-11. Replacing Belt
1 Screw
2 Body Mount
3 Belt
4 Loops
Remove screw and turn body
mount 90°counterclockwise. Re-
move belt from mount. Install new
new belt as shown. Reassemble
mount and tighten screw.
4
1
2
3
Tools Needed:
phillips

OM-235 368 Page 16
3-12. Maintenance And Storage
Replace damaged or dirty filter. Do not wash filter, clean with compressed air, or reuse
dirty filter.
Never use solvents or abrasive cleaning solutions to clean the helmet cooling system .
Keep water and other fluids out of blower assembly.
Replace shroud after 50 washings. Shroud loses its fire retardant properties with re-
peated washing. Verify This Statement
For best performance clean the equipment after each use. Use a soft cloth dampened with a mild soap
and water solution to wipe all external surfaces clean. Allow to air dry.
Product usage, workplace contamination levels, and other factors affect the life of the filter. Replace
filter if air flow is reduced due to a dirty filter (see Section 3-5).
Inspect connecting hose and replace if damaged or if inside of hose is extremely dirty.
If the helmet cooling system will not be used for an extended period, remove the filter and battery and
store them in a clean, dry, cool place free of solvent-based vapors.
3-13. Helmet Cooling System Troubleshooting
Trouble Remedy
Blower does not supply air
to shroud.
Press On/Off button.
Dead battery; recharge battery (see Section 3-4).
Verify battery is properly connected to blower body.
Remove blockage from blower outlet and hose.
Blower cannot be turned
Off.
Press and hold On/Off button for two to three seconds.
Blower runs for short time
even though battery is fully
charged.
Be sure battery is properly connected to battery charger.
Replace filter.
Replace battery.
Replace charger.
Battery Level Indicator
light is On.
Charge or replace the battery. The blower will operate for about 20
minutes after the light goes on. (The Battery Level indicator lights
for several seconds after blower is started.)

OM-235 368 Page 17
Battery run time is too
short.
Replace battery.
Check filter and replace if necessary (see Section 3-5). A clogged
filter element reduces battery life.
Air supplied to helmet
smells and tastes unusual;
eyes and throat irritation.
Continue wearing the helmet cooling system and leave the con-
taminated area immediately. Check contamination level of filter,
and replace filter if necessary.
Check hose connections to blower and shroud.
Have Safety Director and an Industrial Hygienist determine if you
are using the proper equipment for the work environment.
Blower supplies insuffi-
cient air to .
Check hose connections to blower and shroud.
Remove blockage from blower outlet and/or hose.
Check filter and replace if necessary (see Section 3-5). A clogged
filter element reduces battery life.

OM-235 368 Page 18
SECTION 4 −PARTS LIST
Ref. 805 193
ON
/OF
F
H
IG
H
BATT
OW
1
2
3
4
5
67
8
7
Figure 4-1. Cool Belt Helmet Cooling System
Description
Part
No.
Item
No. Quantity
Figure 4-1. Cool Belt Helmet Cooling System
1 245235 Headgear (Includes) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement O-rings (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
770249 Fabric Headband 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 245236 Head Shroud (Hood) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 245232 Belt 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 245231 Hose Assembly 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 245233 Filter 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 245234 Filter Cover 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 245237 Battery, Blower 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 245238 Charger 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .