Miller PORTA-MIG Manuale utente

Millerﬁ

August

1990

FORM:

OM-1220F

Eff

ective

Serial

JK674436

MODEL:

PORTA-MIGﬁ

OWNERS

MANUAL

IMPORTANT:

Read

and

understand

the

entire

contents

this

manual,

with

special

emphasis

the

safety

material

throughout

the

manual,

before

MILLER

ELECTRIC

Mfg.

Co.

AMIerGr~pLtd..Co~y

Installing,

operating,

maintaining

this

equipment.

This

unit

and

these

Instructions

are

for

use

only

persons

trained

and

experienced

the

safe

Box

1079

A~Ieton,

54912

USA

operation

welding

equipment.

not

allow

untrained

persons

install,

Tel.

414-734-9821

operate,

maintain

this

unit.

Contact

your

distributor

you

not

fully

understand

these

instructions.

TC-105

522-A

PRINTED

U.S.A.

LIMITED

WARRANTY

EFFECTIVE:

AUGUST

1990

-1~

This

warranty

supersedes

all

MILLER

warranties

and

exclusive

with

other

guarantees

warranties

expressed

implied.

~~1

LIMITED

WARRANTY

Subject

the

terms

and

conditions

hereof.

MILLER

Electric

Mfg.

Co..

Appleton.

Wisconsin

war

rants

its

DistributoriDealer

that

all

new

and

unused

Equipment

furnished

MILLER

free

from

detect

workmanship

and

material

the

time

and

place

delivery

MILLER.

warranty

made

MILLER

with

respect

engines,

trade

accessories

other

items

manufactured

others.

Such

engines,

trade

accessories

and

other

items

are

sold

subject

the

warranties

their

respective

manufacturers.

any.

A))

engines

are

warrantied

their

manufacturer

for

two

years

from

date

original

purchase.

except

Deutz

engines

which

have

one

year,

2000

hour

warranty.

Except

specified

below.

MILLERs

warranty

does

not

apply

components

having

normal

useful

life

less

than

one

(1)

year.

such

spot

welder

tips,

relay

and

contactor

points.

MILLERMATIC

parts

that

come

contact

with

the

welding

wire

including

nozzles

and

nozzle

insulators

where

failure

does

not

result

from

defect

workmanship

material.

MILLER

shall

required

honor

warranty

claims

omi

war

ranted

Equipment

the

event

failure

resulting

from

defect

within

the

following

periods

from

the

date

delivery

Equipment

the

original

user:

Arc

welders,

power

sources.

robots,

and

year

components

Load

banks

year

Original

main

power

rectifiers

years

(labor



year

only)

All

welding

guns.

feeder/guns

and

torches

days

All

other

MILLERMATIC

Feeders

year

Replacement

repair

parts,

exclusive

labor

days

Batteries

months

provided

that

MILLER

notified

writing

within

thirty

(30)

days

the

date

such

failure.

matter

general

policy

only.

MILLER

may

honor

claims

submitted

the

original

user

within

the

foregoing

periods.

the

case

MILLERs

breach

warranty

any

other

duty

with

respect

the

quality

any

goods.

the

exclusive

remedies

therefore

shall

be.

MILLERs

option

(1)

repair

(2)

replace

ment

or.

where

authorized

writing

MILLER

appropriate

cases.

(3)

the

reasonable

cost

repair

replacement

authorized

MILLER

service

station

(4)

payment

credit

for

the

purchase

price

(less

reasonable

depreciation

based

upon

actual

use)

upon

return

the

goods

Customers

risk

and

expense.

MILLERs

option

repair

replacement

will

FOB.,

Factory

Appleton.

Wisconsin.

FOB.

MILLER

authorized

service

facility.

therefore.

compensation

for

transportation

costs

any

kind

will

allowed.

Upon

receipt

notice

apparent

defect

failure.

MILLER

shall

instruct

the

claimant

the

warranty

claim

procedures

followed.

ANY

EXPRESS

WARRANTY

NOT

PROVIDED

HEREIN

AND

ANY

IMPLIED

WARRANTY,

GUARANTY

REPRE

SENTATION

PERFORMANCE.

AND

ANY

REMEDY

FOR

BREACH

CONTRACT

WHICH.

BUT

FOR

THIS

PROVISION.

MIGHT

ARISE

IMPLICATION,

OPERATION

LAW,

CUSTOM

TRADE

COURSE

DEALING.

INCLUDING

ANY

IMPLIED

WARRANTY

MERCHAN

TABILITY

F!TNESS

FOR

PARTICULAR

PURPOSE.

WITH

RESPECT

ANY AND

ALL

EQUIPMENT

FURNISHED

MILLER

EXCLUDED

AND

DISCLAIMED

MILLER.

EXCEPT

EXPRESSLY

PROVIDED

MILLER

WRITING,

MILLER

PRODUCTS

ARE

INTENDED

FOR

ULTIMATE

PURCHASE

COMMERCIALINDUSTRIAL

USERS

AND

FOR

OPERATION

PERSONS

TRAINED

AND

EXPERIENCED

THE

USE

AND

MAINTENANCE

WELDING

EQUIPMENT

AND

NOT

FOR

CONSUMERS

CONSUMER

USE.

MILLERS

WARRANTIES

NOT

EXTEND

TO.

AND

RESELLER

AUTHORIZED

EXTEND

MtLLERS

WARRANTIES

TO,

ANY

CONSUMER.

I

ERRATA

SHEET

**First

digit

represents

page



digits

following

dash

represent

item

no.

SURE

PROVIDE

MODEL

AND

SERIAL

NUMBER

WHEN

ORDERING

REPLACEMENT

PARTS.

After

this

manual

was

printed,

refinements

equipment

design

occurred.

This

sheet

lists

exceptions

data

appearing

later

this

manual.

AMEND

MENT

SECTION



PARTS

LIST

Amend

Parts

List

follows:

All

Parts

Effective

w/KB029819

Dia.

Part

Mkgs.

No.

Replaced

With

Description

Quantity

29-25

116

964

143

922

CLAMP,

cable

strain

relief

29-26

PLG7

111

122

109

770

141

162

143

922

HOUSING

PLUG

PINS,

(consisting

of)

TERMINAL,

male

18-14

wire

29-46

079

633

144

172

FITTING,

brs

barbed

3/l6tbg

.250-20

32-

037

824

144

240

THYRISTOR,

scr

16A

600V

OM.1220F

6/90

RECEIVING-HANDLING

Before

unpacking

equipment,

check

carton

for

any

dam-

Use

the

following

spaces

record

the

Model

Designa

age

that

may

have

occurred

during

shipment.

File

any

tion

and

Serial

Style

Number

your

unit.

The

infor

claims

for

loss

damage

with

the

delivering

carrier.

mation

located

the

data

card

the

nameplate.

Assistance

for

filing

settling

claims

may

obtained

from

the

distributor

and/or

the

equipment

manufactur-

Model

_________________________________

ers

Transportation

Department.

Serial

Style

No.

____________________

When

requesting

information

about

this

equipment,

ways

provide

the

Model

Description

and

Serial

Style

Date

Purchase

______________________

Number.

TABLE

CONTENTS

Section

No.

Page

No.

SECTION

SAFETY

RULES

FOR

OPERATION

ARC

WELDING

POWER

SOURCE

1-1.

Introduction

1-2.

General

Precautions

1-3.

Arc

Welding

1-4.

Standards

Booklet

Index

SECTION

SAFETY

PRECAUTIONS-AND

SIGNAL

WORDS

2-1.

General

Information

And

Safety

2-2.

Safety

Alert

Symbol

And

Signal

Words

SECTION

3

SPECIFICATIONS

3-1.

Description

SECTION

4

INSTALLATION

RELOCATION

4-1.

Location

4-2.

Opening

Wire

Feeder

Case

4-3.

Drive

Motor

4-4.

Interconnecting

Cord

And

Shielding

Gas

Hose

Installation

4-5.

Drive

Roll

Installation

4-6.

Welding

Gun

Installation

Metal

Case

Models

4-7.

Welding

Gun

Installation

ABS

Case

Models

4-8.

Wire

Spool

Installation

4-9.

Adjustment

Hub

Tension

4-10.

Weld

Cable

Connections

4-11.

Welding

Wire

Threading

SECTION

5-OPERATOR

CONTROLS

5-1.

General

5-2.

Power

Switch

5-3.

Wire

Speed

Control

SECTION

6

SEOUENCE

OPERATION

6-1.

Gas

Metal

Arc

Welding

(GMAW)

6-2.

Shutting

Down

Section

No.

Page

No.

SECTION

MAINTENANCE

TROUBLESHOOTING

7-1.

Opening

Wire

Feeder

Case

7-2.

Routine

Maintenance

7-3.

Aligning

Drive

Rolls

And

Wire

Guides

7-4.

Brush

Inspection

And

Replacement

7-5.

Overload

Protection

7-6.

Circuit

Board

Precautions

7-7.

Troubleshooting

SECTION

ELECTRICAL

DIAGRAMS

Diagram

8-1.

Circuit

Diagram

8-2.

Circuit

Diagram

For

Motor

Control

Board

PCi

SECTION

9

PARTS

LIST

Figure

9-1.

Main

Assembly

Figure

9-2.

Control

Box

Figure

9-3.

Circuit

Card

Figure

9-4.

Wire

Drive

And

Gears

LIST

CHARTS

AND

TABLES

Table

3-i.

Specifications

Table

7-1.

Maintenance

Schedule

Table

7-2.

Troubleshooting

Table

9-1.

Drive

Roll

And

Wire

Guide

Kits

SECTION

SAFETY

RULES

FOR

OPERATION

ARC

WELDING

POWER

SOURCE

SECTION

REGLES

SECURITE

POUR

FONCTIONNEMENT

POSTE

SOUDAGE

LARC

1-1.

INTRODUCTION

learn

experience.

Learning

safety

through

personal

experience,

child

touching

hot

stove

harmful,

wasteful,

and

wise.

Let

the

experience

others

teach

you.

Safe

practices

developed

from

experience

the

use

welding

and

cutting

are

described

this

manual.

Research,

development,

and

field

experience

have

evolved

reliable

equipment

and

safe

installation,

opera

tion,

and

servicing

practices.

Accidents

occur

when

equipment

improperly

used

maintained.

The

reason

for

the

safe

practices

may

not

always

given.

Some

are

based

common

sense,

others

may

require

technical

volumes

explain.

wiser

the

rules.

Read

and

understand

these

safe

practices

before

tempting

install,

operate,

service

the

equipment.

Comply

with

these

procedures

applicable

the

par

ticular

equipment

used

and

their

instruction

manuals,

for

personal

safety

and

for

the

safety

others.

Failure

observe

these

safe

practices

may

cause

serious

injury

death.

When

safety

becomes

habit,

the

equipment

can

used

with

confidence.

These

safe

practices

are

divided

into

two

Sections:

General

Precautions,

common

arc

welding

and

cutting;

and

Arc

Welding

(and

Cutting)

(only).

Reference

standards:

Published

Standards

safety

are

also

available

for

additional

and

complete

pro

cedures

than

those

given

this

manual.

They

are

listed

the

Standards

Index

this

manual.

ANSI

Z49.1

the

most

complete.

The

National

Electrical

Code,

Occupational

Safety

and

Health

Administration,

local

industrial

codes,

and

local

inspection

requirements

also

provide

basis

for

equip

ment

installation,

use,

and

service.

1-2.

GENERAL

PRECAUTIONS

Different

arc

welding

processes,

electrode

alloys,

and

fluxes

can

produce

different

fumes,

gases,

and

radiation

levels.

addition

the

information

this

manual,

sure

consult

flux

and

elec

trode

manufacturers

for

specific

technical

data

and

precautionary

measures

concerning

their

material.

Burn

Prevention

Wear

protective

clothing

gauntlet

gloves

designed

for

use

welding,

hat,

and

high

safety-toe

shoes.

Button

shirt

collar

and

pocket

flaps,

and

wear

cuffless

trousers

avoid

entry

sparks

and

slag.

Wear

helmet

with

safety

goggles

glasses

with

side

shields

underneath,

appropriate

filter

lenses

plates

(protected

clear

cover

glass).

This

MUST

for

welding

cutting,

(and

chipping)

protect

the

eyes

1-1.

INTRODUCTION

Contrairement

Iappren

tissage

vie,

lapprentissage

sØcuritØ

par

pØrience

personnelle,

comme

Ienfant

qui

touche

poŒle

chaud,

est

dangereux,

imprudent

inutile.

lnstruisez-vous

donc

IexpØrience

dautrui.

Des

mØthodes

sØcuritØ

issues

lexpØrience

soudage

coupage

sont

dØcrites

dans

manuel.

recherche,

progrØs

IexpØrience

dans

domaine

ont

dØveloppØ

materiel

fiable

des

mØthodes

sØcuritØ

pour

Iinstallation,

fonctionnement

Ientre

tien.

Des

accidents

produisent

lorsque

materiel

est

inadØquatement

utilisØ

entretenu.

raison

ces

mØthodes

sØcuritØ

peut

pas

Œtre

toujours

donnØe.

Certaines

sont

fondØes

sur

sens

commun,

dautres

demanderont

Œtre

expliquØes

par

des

livres

techni

ques.

est

plus

sage de

suivre

les

regles.

Lisez

comprenez

ces

mØthodes

sØcuritØ

avant

dessayer

dinstaller,

faire

fonctionner

rØparer

lappareil.

Pour

votre

sØcuritØ

personnelle

celle

dautrui,

conformez-vous

ces

regles

aux

manuels

d

instructions.

Manquer

dobserver

ces

mØthodes

sØcuritØ

pourrait

entrainer

des

blessures

graves

mŁme

mort.

Quand

sØcuritØ

devient

une

habitude,

materiel

peut

alors

Œtre

utilisØ

toute

confiance.

Ces

mØthodes

sØcuritØ

sont

divisØes

deux

sec

tions:

Precautions

gØnØrales,

communes

soudage

coupage

larc,

Soudage

larc

(et

coupage)

(uniquement).

Normes

rØfØrence:

Des

publications

des

normes

amØricaines

sØcuritØ

sont

aussi a

votre

disposition

pour

dautres

modes

opØratoires

plus

complets

que

ceux

present

manuel.

Elles

sont

donnØes

dans

lln

dex

des

Normes

ces

regles

sØcuritØ.

ANSI

Z49-1

est

plus

complete.

Les

codes

IACNOR,

codes

provinciaux

municipaux

donnent

aussi

les

exigences

pour

une

stallation,

une

utilisation

entretien

srs.

1-2.

PRECAUTIONSGENERALES

Plusieurs

procedØs

soudage

Iarc,

des

Ølec

trodes

allies,

los

flux

peuvent

produire

des

vapeurs,

gaz,

niveaux

rayonnement

diffØrents.

Pour

tout

renseignement

supplØmen

taire

manuel,

consultez

aussi

lea

fabricants

des

electrodes

des

flux afin

dobtenir

lee

ronsoignements

techniques

spØcifiques

lee

mesures

precaution

concernant

leurs

matØriaux.

Prevention

des

brOlures

Portez

des

vŒtements

protection

des

gants

crispin

spØcialement

designØs

pour

soudage,

casque

des

chaussures

sØcuritØ.

Boutonnez

col

votre

chemise

les

pattes

vos

poches,

portez

des

pan-

talons

sans

revers

pour

Øviter

que

des

Øtincelles

laitier

introduisent.

Portez

masque

avec

lunettes

sØcuritØ

avec

Øcrans

latØ-raux

protection,

des

lunettes

filtrantes

des

couvre-Ientilles

(proteges

par

verre

clair).

Pour

soudage

coupage

(et

burinage),

est

OM-1220

Page

from

radiant

energy

and

flying

metal.

Replace

cover

glass

when

broken,

pitted,

spattered.

See

1-3A.2.

Avoid

oily

greasy

clothing.

spark

may

ignite

them.

Hot

metal

such

electrode

stubs

and

workpieces

should

never

handled

without

gloves.

Medical

first

aid

and

eye

treatment.

First

aid

facilities

and

qualified

first

aid

person

should

available

for

each

shift

unless

medical

facilities

are

for

mediate

treatment

flash

burns

the

eyes

and

skin

burns.

Ear

plugs

should

worn

when

working

overhead

confined

space.

hard

hat

should

worn

when

others

work

overhead.

Flammable

hair

preparations

should

not

used

per

Sons

intending

weld

cut.

Toxic

Fume

Prevention

Severe

discomfort,

illness

death

can

result

from

fumes,

vapors,

heat,

oxygen

enrichment

depletion

that

welding

(or

cutting)

may

produce.

Prevent

them

with

adequate

ventilation

described

ANSI

Stan

dard

Z49.1

listed

Standards

index.

NEVER

ventilate

with

oxygen.

Lead

cadmium

zinc

mercury

and

beryllium

bearing

and

similar

materials,

when

welded

(or

cut)

may

produce

harmful

concentrations

toxic

fumes.

Ade

quate

local

exhaust

ventilation

must

used,

each

person

the

area as

well

the

operator

must

wear

air-supplied

respirator.

For

beryllium,

both

must

ed.

Metals

coated

with

containing

materials

that

emit

toxic

fumes

should

not

be heated

unless

coating

removed

from

the

work

surface,

the

area

well

ven

tilated,

the

operator

wears

air-supplied

respirator.

Work

confined

space

only

while

being

ven

tilated

and,

necessary,

while

wearing

air-supplied

respirator.

Gas

leaks

confined

space

should

avoided.

Leaked

gas

large

quantities

can

change

oxygen

con

centration

dangerously.

not

bring

gas

cylinders

into

confined

space.

Leaving

confined

space,

shut

OFF

gas

supply

source

prevent

possible

accumulation

gases

the

space

downstream

valves

have

been

accidently

opened

left

open.

Check

sure

that

the

space

safe

before

re-entering

it.

Vapors

from

chlorinated

solvents

can

decomposed

the

heat

the

arc

(or

flame)

form

PHOSGENE,

highly

toxic

gas,

and

other

lung

and

eye

irritating

pro

ducts.

The

ultraviolet

(radiant)

energy

the

arc

can

also

decompose

trichloroethylene

and

per

chioroethylene

vapors

form

phosgene.

DO NOT

WELD

cut

where

solvent

vapors

can

drawn

into

the

welding

cutting

atmosphere

where

the

radiant

OBLIGATOIRE

protØger

ses

yeux

contre

lØnergie

rayonnement

les

Øclats

metal.

Remplacez

verre

protecteur

lorsquil

est

brisØ,

piquØ

quil

recu

des

projections.

Voir

.3A.2.

Evitez

porter

des

habits

imprØgnØs

dhuile

graisse.

Une

Øtincelle

pourrait

les

enflammer.

manipulez

jamais

sans

gants

metal

chaud

tel

que

des

chutes

dØlectrdde

des

piŁces

souder.

Premiers

soins

traitement

des

yeux:

Tout

atelier

devrait

avoir

disposition

poste

premiers

soins

ainsi

quune

personne

competente,

moms

quur,

ser

vice

medical

soit

proximitØ

pour

soigner

immediate

ment

les

brlures

des

yeux

peau.

Portez

des

bouche-oreilles

lorsque

vous

travaillez

plafond

dans

espace

restreint.

Portez

casque

lorsque

dautres

personnes

travaillent

plafond.

Les

personnes

devant

souder

couper

doivent

pas

employer

des

preparations

inflammables

pour

leurs

cheveux.

Prevention

des

gax

toxiques

Les

gaz,

les

vapeurs,

chaleur,

enrichissement

manque

doxygene

peuvent

entrainer

malaise,

une

maladie

mŒme

mort.

Remediez-y

par

ven

tilation

dØcrite

dans

Norme

ANSI

Z49.1

paragraphe

llnclex

des

Normes.

ventilez

JAMAIS

ox

ygene.

soudant

coupant,

les

p10mb,

cadmium,

zinc,

mercure

beryllium

autres

matØriaux

semblables

peuvent

crØer

des

concentrations

nocives

gaz

toxi

ques.

doit

avoir

recours

une

ventilation

aspirante

adequate

local,

alors

toute

personne

sur

les

lieux,

mŒme

que

soudeur,

doit

porter

masque

duction

dair.

doit

employer

les

deux

pour

beryllium.

Les

mØtaux

enrobØs

composes

matØriaux

Ømet

tant

des

gaz

toxiques

doivent

pas

etre

chauffØs

moms

que

lenrobage

soit

tØ

surface

travailler,

que

local

soit

bien

ventilØ,

que

soudeur

porte

masque

adduction

dair.

travaillez

dans

espace

restreint

que

sil

est

bien

ventilØ

et,

nØcessaire,

portez

masque

adduction

dair.

doit

Øviter

les

fuites

gaz

dans

espace

restreint.

Les

fuites

gaz

grande

quantitØ

peuvent

transformer

dangereusement

concentration

dox

ygene.

Namenez

pas

bouteilles

gaz

dans

espace

restreint.

quittant

espace

restreint,

FERMEZ

robinet

dalimentation

gaz

bouteille.

Ainsi

pourra

rentrer

toute

sØcuritØ

dans

piŁce,

mŒme

les

robinets

aval

ont

ete

ouverts

par

accident,

les

laissØs

ouverts.

Les

vapeurs

dissolvants

chlorØs

peuvent

Œtre

dØcom

posØes

par

chaleur

larc

(ou

flamme)

former

PHOSGENE,

gaz

trŁs

toxique,

dautres

produits

irritant

les

poumons

les

yeux.

Lenergie

ultra-violette

larc

peut

aussi

dØcomposer

les

vapeurs

trichloroethylene

perchloroethylene

pour

former

phosgŁne.

SOUDEZ

PAS

coupez

pas

dans

des

endroits

o

les

vapeurs

dissolvants

peu

vent

Œtre

attirØes

dans

latmosphŁre

soudage

OM-1220

Page

energy

can

penetrate

atmospheres

containing

even

minute

amounts

trichloroethylene

per

chioroethylene.

Fire

and

Explosion

Prevention

Causes

fire

and

explosion

are:

combustibles

reached

the

arc,

flame,

flying

sparks,

hot

slag

heated

material;

misuse

compressed

gases

and

cylinders;

and

short

circuits.

AWARE

THAT

flying

sparks

falling

slag

can

pass

through

cracks,

along

pipes,

through

windows

doors,

and

through

wall

floor

openings,

out

sight

the

goggled

operator.

Sparks

and

slag

can

fly

feet.

prevent

fires

and

explosion:

Keep

equipment

clean

and

operable,

free

oil,

grease,

and

(in

electrical

parts)

metallic

particles

that

can

cause

short

circuits.

combustibles

are

area,

NOT

weld

Cut.

Move

the

work

practicable,

area

free

combustibles.

Avoid

paint

spray

rooms,

dip

tanks,

storage

areas,

yen

tilators.

the

work

cannot

moved,

move

com

bustibles

least

feet

away

out

reach

sparks

and

heat;

protect

against

ignition

with

suitable

and

snug-fitting,

fire-resistant

covers

shields.

Walls

touching

combustibles

opposite

sides

should

not

welded

(or

cut).

Walls,

ceilings,

and

floor

near

work

should

protected

heat-resistant

covers

shields.

Fire

watcher

must

standing

with

suitable

fire

tinguishing

equipment

during

and

for

some

time

after

welding

cutting

if:

appreciable

combustibles

(including

building

construction)

are

within

feet

appreciable

combustibles

are

further

than

feet

but

can

ignited

sparks

openings

(concealed

visible)

floors

walls

within

feet

may

expose

com

bustibles

sparks

combustibles

adjacent

walls,

ceilings,

roofs,

metal

partitions

can

ignited

radiant

conducted

heat.

Hot

work

permit

should

obtained

before

operation

ensure

supervisors

approval

that

adequate

precautions

have

been

taken.

After

work

done,

check

that

area

free

sparks,

glowing

embers,

and

flames.

empty

container

that

held

combustibles,

that

can

produce

flammable

toxic

vapors

when

heated,

must

never

welded

cut,

unless

container

has

first

been

cleaned

described

AWS

Standard

A6.O,

listed

Standards

index.

This

includes:

thorough

steam

caustic

cleaning

(or

solvent

water

washing,

depending

the

corn-

coupage

o

Ienergie

rayonnement

peut

pØnØtrer

dans

des

atmospheres

contenant

des

quantitØs

mŁme

minuscules

trichloroethylene

per

chloroØthylŁne.

Prevention

des

incendies

des

explosions

Les

causes

dincendie

dexplosion

sont

les

com

bustibles

atteints

par

larc,

flamme,

les

Øtincelles,

laitier

chaud

les

matØriaux

chauffØs,

mauvais

emploi

des gaz

comprirnØs

des

bouteilles

ainsi

que

les

courts-circuits.

Sachez

que

les

Øclats

dØtincelles

chute

laitier

peuvent

sinfiltrer

dans

les

fissures,

long

des

tuyauteries,

par

les

fenŒtres

portes

par

les

couvertures

des

murs

sol,

sans

que

soudeur

portant

des

lunettes

les

vole.

Les

Øtincelles

(es

scones

peuvent

voler

jusqu

pieds.

Pour

prØvenir

les

incendies

les

explosions:

Veillez

que

votre

appareil

soit

propre

Øtat

marche,

dØnuØ

dhuile

graisse,

particules

metal

sur

piŁces

electriques

qul

pourraient

entrairier

des

courts-circuits.

des

combustibles

trouvent

proximitØ,

soudez

pas,

coupez

pas.

Sipossible,

dØplacez

votre

travail

loin

des

combustibles.

Evitez

les

ateliers

peinture

pistolet,

cuves

dimmersion,

les

entrepts,

les

yen

tilateurs.

cela

nest

pas

possible,

placez

les

com

bustibles

moms

pieds

des

ØtinceUes

chaleur

protegez-les

des

Øtincelles

avec

des

couver

tures

des

Øcrans

protecteurs

adequats,

bien

ajustØs

ignifugØs.

dolt

pas

souder

(ou

couper)

ctØ

oppose

des

murs

touchant

les

combustibles.

Les

murs,

plafonds

planchers

proches

travail

doivent

Œtre

proteges

par

des

couvertures

Øcrans

protecteurs

ignifugØs.

surveillant

doit

tenir

proximitØ

avec

materiel

lutte

contre

lincendie

adequat,

pendant

quelque

temps

aprŁs

soudage

coupage

si:

Des

quantites

apprØciables

dØ

combustibles

compris

une

construction

chantier)

trouvent

moms

pieds.

Des

quantites

apprØciables

combustibles

sont

plus

pieds

mais

peuverit

Œtre

enflammØes

par

des

Øtincelles.

Des

ouvertures

(cachØes

visibles)

sur

planchers

murs

moms

pieds

peuvent

exposer

des

combustibles

aux

Øtincelles.

Les

combustibles

adjacents

aux

murs,

plafonds,

toits

cloisons

metalliques

peu

vent

Łtre

enflammØs

par

une

chaleur

rayon

nante

transmise.

Avant

commencer,

avisez

contremaitre

pour

quil

sassure

que

les

precautions

adequates

soment

prises.

Une

fois

travail

terminØ,

vØrifiez

quil

ny

alt

pas

dØtincelles,

cendres

ardentes

flammes

dans

local.

dolt

jamais

souder

couper

sur

recipient

avant

contenu

des

combustibles,

pouvant

produire

des

vapeurs

inflammables

toxiques

chauffe,

moms

que

recipient

nait

ete

aye

prØalable,

corn-

dØcrit

dans

Norme

AWS

A6.O,

figurant

paragraphe

lIndex

des

Normes.

Cela

comprend:

nettoyage

fond

vapeur

caustique

lou

lavage

avec

dissolvant

eau

selon

solubilitØ

combustible)

suivi

dune

purge

dune

in-

OM-1220

Page

bustibles

solubility)

followed

purging

and

inerting

with

nitrogen

carbon

dioxide,

and

using

protective

equipment

recommended

A6.O.

Waterfilling

just

below

working

level

may

substitute

for

inerting.

container

with

unknown

contents

should

cleaned

(see

paragraph

above).

NOT

depend

sense

smell

sight

determine

if it

safe

weld

cut.

Hollow

castings

containers

must

vented

before

welding

cutting.

They

can

explode.

Explosive

atmospheres.

Never

weld

cut

where

the

air

may

contain

flammable

dust,

gas,

liquid

vapors

(such

gasoline).

Compressed

Gas

Equipment

Standard

precautions.

Comply

with

precautions

this

manual,

and

those

detailed

CGA

Standard

P-i,

SAFE

HANDLING

COMPRESSED

GASES

CYLINDERS,

listed

Standards

index.

Pressure

Regulators

Regulator

relief

valve

designed

protect

only

the

regulator

from

overpressure;

not

intended

pro

tect

any

downstream

equipment.

Provide

such

protec

tion

with

one

relief

devices.

Never

connect

regulator

cylinder

containing

gas

other

than

that

for

which

the

regulator

was

designed.

Remove

faulty

regulator

from

service

immediately

for

repair

(first

cylinder

valve).

The

following

symp

toms

indicate

faulty

regulator:

Leaks

gas

leaks

externally.

Excessive

Creep

delivery

pressure

continues

rise

with

downstream

valve

closed.

Faulty

Gauge

gauge

pointer

does

not

move

oft

stop

when

pressurized,

nor

returns

stop

after

pressure

release.

Repair.

NOT

attempt

repair.

Send

faulty

regulators

for

repair

manufacturers

designated

repair

center,

where

special

techniques

and

tools

are

used

trained

personnel.

Cylinders

must

handled

carefully

prevent

leaks

and

damage

their

walls,

valves,

safety

devices:

Avoid

electrical

circuit

contact

with

cylinders

including

third

rails,

electrical

wires,

welding

Circuits.

They

can

produce

short

circuit

arcs

that

may

lead

serious

cident.

(See

1-3C.)

ICC

DOT

marking

must

each

cylinder.

assurance

safety

when

the

cylinder

properly

handled.

jection

dazote

de gaz

carbonique,

utilisant

Øquipement

protection

comme

recommandØ

dans

lA6-O.

LatmosphŁre

inerte

peut

Œtre

remplacØe

par

niveau

deau

arrivant

au-dessous

travail

effectuer.

Vous

devez

(aver

recipient

dont

nature

contenu

est

inconnue

(voir

paragraphe

ci-dessus).

vous

fiez

PAS

lodorat

vue

pour

dire

lon

peut

souder

couper

toute

sØcuritØ.

Vous

devez

pratiquer

event

sur

les

piŁces

rØci

pients

creux

avant

les

souder

couper:

ils

peuvent

exploser.

Atmospheres

explosives:

soudez

coupez

jamais

dans

des

lieux

o~i

lair

peut

contenir

des

poussiŁres,

gaz

vapeurs

liquides

inflammables

(tels

que

Iessence).

Gaz

comprimØ

Precautions

gØnØrales:

Suivez

les

precautions

manuel,

celles

dØcrites

Norme

CGA

P-i

(PrØcau

tions

sØcuritØ

pour

manipulation

gaz

comprimØs

bouteilles),

paragraphe

Index

des

Normes.

DØtendeurs

pression

soupape

sQretØ

dun

dØtendeur

est

destinØe

pro

teger

seulement

dØtendeur

surpression.

Elle

na

pas

pour

but

proteger

les

boyaux

chalumeau:

protege

ceux-ci

par

des

soupapes

retenue

concues

spØcialement

pour

cette

fonction.

montez

jamais

dØtendeur

sur

une

bouteille

conte

nant

gaz

different

celui

pour

lequel

dØtendeur

ØtØ

concu.

Enlevez

immØdiatement

dØtendeur

dØfectueux

pour

faire

rØparer

(dabord,

fermez

robinet

bouteille).

Les

symptmes

suivants

dØnotent

dØfec

tuositØ

dØtendeur:

Fuites

gaz

fuit

extØrieurement.

Ascension

excessive

pression

debit

continue

monter,

robinet

chalumeau

Øtant

fermØ.

ManomŁtre

dØfectueux

laiguille

manomŁtre

sØcarte

pas

goupille

butØe

lors

mise

pression,

revient

pas

sur

goupille

aprŁs

lØchap

pement

pression.

Reparation.

NESSAYEZ

PAS

rØparer

vous-mŁmes.

Envoyez

(es

dØtendeurs

defectueux

rØparer

aux

ateliers

reparation

agrees

fabricant,

o

des

techni

ques

des

outils

spØciaux

sont

utilisØs

par

person

nel

formØ.

Bouteilles

Les

bouteilles

doivent

Œtre

manipulØes

avec

soin

pour

prØvenir

les

fuites

dØgats

leurs

parois,

robinets

systŁmes

sQretØ.

Evitez

quun

circuit

electrique

soit

contact

avec

les

bouteilles,

compris

Ies

rails

Con

tact,

les

fils

Ølectriques

les

circuits

soudage.

Cela

pourrait

crØer

des

arcs

courts-circuits

pouvant

entraIner

des

accidents

graves

(Voir

1.3C.).

Chaque

bouteille

doit

porter

les

inscriptions

ICC

DOT.

Cest

gage

sØcuritØ

pourvu

que

bouteille

soit

bien

manipulØe.

OM-1220

Page

Indice

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