Rohrman Schweißtechnik TIG User manual

Operation Instructions
Welding Torches TIG
EN 60 974-7
Rohrman Schweißtechnik GmbH
Hosterfeldstraße 2 · D-41747 Viersen
Tel. [phone]
Fax [phone]
www.rohrman.de
[e-mail]
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1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Information regarding this operation manual . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Accompanying documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Warning notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6 Limitation of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.7 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Hazard sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Users responsability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6 Requirements for personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.7 Personal protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2 Electrical control elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3 Torch specic data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 Construction and funktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3 Principle construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5 Starting the operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.1 Assembly of gasnozzle and electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2 Connection to the welding powersource . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3 Connection to the cooling unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.1 Checks prior to start welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.2 Welding process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.3 Interruption of the welding process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7 Maintenance/cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.1 Visual check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.2 Cleaning of welding torch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.3 Electrode grinding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.4 Replace of wearing parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8 Trouble remedy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table of Contents
2
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1 General
1.1 Informations to this operation manual
This operation manual contains important instructions for the treatment
of TIG welding torches during the instalation, setting up and the operation,
about the maintenance and care as also of the disposal.
The precondition for secure, intended and economic operation is the
compliance with all safety instructions and treatment instructions.
The notice of the instructions helps avoiding hazards, deminishes repair-
cost and downtime and increases lifetime of the welding torch.
Moreover the actual accident prevention regulations and safety rules of
the welding location must be observed.
This operation manual should be read carefully before beginning of all
work! It is part of the product performance and should be kept near the
welding torch accessible for the personel at any time.
1.2 Further applicable documents
Each torch will be delivered with a specic data sheet. This data sheet
contains torch specic informations and is part of this operation manual.
If no data sheet is attached please ask your distributor.
Because the welding torch operates with a power source, a wire feeder
and optionally a cooling unit, the operation manuals of these equipments
should also be observed.
1.3 Copyright
This document is copyrighted by law.
Any reproduction or reprinting, also in part, as well as reproduction of
pictures and symbols of this document, also in altered state is only
allowed with written consent of the manufacturer.
General
3
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1.4 Explanation of symbols
Warning notices are additionally noticed by warning symbols.
In this operation manual the following warning symbols are used:
General
4
SIGNIFICATIONSYMBOL
General warning notice
Danger of electrical power
Explosion danger
Danger of re
Burning danger
Risk of inhalation of toxic substances
Danger of strong UV-radiation
Danger of radioactive substances
General notices and useful advices for handling
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1.5 Warning notices
The warning notices as used in this operation manual are introduced by
signalwords which bring to express the extend of the hazard. The warning
symbol points additionally to the kind of hazard.
In this operation manual the following warning notices are used:
A warning notice of this kind of danger level signalizes a threadning dan-
gerous situation. If the dangerous situation will not be avoided, this
leads to death or to serious injuries. These instructions must be followed
in order to avoid the danger of death or of serious injuries of personnel.
A warning notice of this kind of danger level signalizes a possible dan-
gerous situation. If the the dangerous situation will not be avoided this
could lead to death or to serious injuries. These instructions must be
complied in order to avoid the danger of death or of serious injuries of
personel.
A warning notice of this kind of danger level signalises a possible dan-
gerous situation. If this situation will not be avoided it could lead to
slight or moderate injuries. These instructions must be complied in order
to avoid personal injuries.
General
5
DANGER
PRECAUTION
Risk of injury!
Consequences of ignoring …
notices for avoidance
CAUTION
Risk of personelx damage … !
Consequences of ignoring …
notices for avoidance
Danger for life!
Consequences of ignoring …
notices for avoidance
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A reference signies additional informations, important for the later
treatment, or for easier adaptation of the described work step.
1.6 Limited liability
All disclosures and notices in this operation manual have been collected
taking in account of all valid standards and regulations, the state of art
as well as our long standing knowledge and experience.
We reserve alterations of the discussed welding torches in the context
of further devellopments. From the notices, pictures and descriptions in
this operation manual claims cannot be derived.
The manufacturer does not accept liability for damages and operational
disruptions caused by:
non-compliance of this operation manual,
improper use,
use of inadaquately trained personnel,
use of improper operating materials,
faulty connection,
non use of original Rohrman components,
technical alterations not corresponded with Rohrman
Schweißtechnik,
non-implementation of required maintenance.
Rohrman Schweißtechnik is liable for any of his errors or omissions,
excluded further claims which do not reect the context of the duties
from the in the contract entered warrenty obligations. Damage compen-
sation regardless on whatever legal grounds they derive are excluded.
General
6
Text of reference …
REFERENCE
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1.7 Warranty
We, Rohrman Schweißtechnik GmbH, deliver a tested quality product.
At the time of delivery we warrant for an error free product, free from ma-
terial- or processing errors and suitable for the intented use to the state
of art and to the legal regulations.
Warranty claims can be raised only for fabrication errors, but not for
damages caused by natural wear or improper use. No warranty will be
taken for poor work results. Wear parts are excluded from the warranty.
The Warranty policy covers no damages or functional defects caused by
improper use as there are:
not following the notices in this operation manual,
improper installation or -assembly,
inadequate maintenance,
altering of product against original state,
overloading, misuse or improper use,
mechanical damages caused by collision or accident.
General
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2 Safety
2.1 General
This chapter serves for important references of all safety aspects for
the optimal security of personel as well as the secure and trouble-free
use.
2.2 The intended use
The welding torches of the series TIG are meant exclusively for welding
with inert gas (Argon) of low- and high alloyed steel and light alloys. They
meet EN 60 974-7. They do not represent a device as having individual
functions of performance. The TIG-arc welding will only be possible in
connection with a power source.
The application may only be performed by trained, professional personel
in complyance with the relevant regulations. Any other use byond its
intended purpose does not comply with these regulations.
Claims of any kind due to damage of non-intented use are excluded. The
risk bears only the operator.
Safety
8
WARNING
Danger when non complied use!
Any use beyond the intended purpose can lead to dangerous
situations.
Use the welding torch only for the intended purpose.
Follow all notices and instructions of this operation manual.
WARNING
Danger for not following the security notices!!
Substancial danger can arise if the security notices and handling
instructions in this operation manual will not be followed.
All warning notices and – instructions must be observed.
Also must be observed the security notices in the aplicable
documents.
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2.3 Security notices
For safe handling of the welding torch the following security notices
should be noted:
Welding operations should only be performed and performed by pro-
fessional personel who have knowledge of the relevant regulations
of arc welding.
Personel should wear dry protective cloth and eye protection.
Welding operations should not be performed in potential explosive
environment.
Personel with pacemaker or other medical implant should not
perform operations with TIG-arc welding equipment.
The TIG-welding torch and – hose and cable package should be
checked on outside visible damages. A damaged welding torch
should not be put in operation.
Check the orderly state of the power source and the cooling unit as
well as the function of the remote control elements before starting
the operation.
Repair of the welding torch or of the connection lead should only be
made by an authorized professional shop or by the factory service.
Substancial dangers for the user might occur by inexpertly repairs.
Defect parts should only be exchanged by original Rohrman compo-
nents. Only these parts may garantee the security requirements.
The welding torch should be put aside so that no contact with current
conducting parts may occur.
During maintenance and cleaning the power source should be turned
off.
The torch package should not be put over hot or sharp edges.
Safety
9
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2.4 Sources of danger
In the following the direct and indirect sources of danger, which may lead
to accidents with TIG-arc welding, are listed.
2.4.1 Electric current
2.4.2 Radioactive substances
2.4.3 Strong heat devellopment
Safety
10
DANGER
Danger for life by electrical current!
By contact with leads or loaded workpieces danger for life exists!
Pay attention to the following notices in order to avoid hazards by
contact with electrical power:
Wear dry protective cloth.
Take insulation precautions when distance to conductive parts
is less than 2 meters.
Switch off the power source during all maintenance on the
welding torch.
DANGER
Danger for life by radioactive substances!
With welding and grinding of thorium containing tungsten elec-
trodes radioactive substances are set free.
Use appropriate grinding machine with exhausting facility.
DANGER
Burning hazard!
The TIG-torch head, the workpiece, ying sparks and spatters are
hot and may cause burning. The following references should be
noted to avoid burnings:
Protect the eyes for ying sparks and spatters.
Wear suitable protective cloth.
With overhead welding carry additional head protection.
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