Taylor DA7-B Manuale utente
1C
1
OPERATING GUIDE
FOR
TYPE DA7-B
DRAWN ARC PISTOL
TAYLOR STUDWELDING
SYSTEMS LIMITED
1C
2
INDEX
PAGE No. CONTENT
3USEFUL INFORMATION.
5IMPORTANT SAFETY INFORMATION.
7INTRODUCTION TO STUDWELDING.
8SETTING UP AND WELDING.
11 EXPLODED DIAGRAMS AND PARTS LISTINGS.
17 ACCESSORIES - STANDARD FOOT ASSEMBLIES
19 ACCESSORIES - GAS FOOT ASSEMBLY
20 ACCESSORIES - CHUCKS - EUROPEAN SCREW-ON TYPE
21 ACCESSORIES - CHUCKS - EUROPEAN SCREW-ON GAS TYPE
UK TAPER FIT - ADJUSTABLE
22 ACCESSORIES - FERRULE GRIPS
BENDING BAR
23 EC DECLARATION OF CONFORMITY
1C
3
USEFUL INFORMATION
MANUFACTURERS DETAILS
TAYLOR STUDWELDING SYSTEMS LIMITED
COMMERCIAL ROAD
DEWSBURY
WEST YORKSHIRE
WF13 2BD
ENGLAND
TELEPHONE :+44 (0)1924 452123
FACSIMILE :+44 (0)1924 430059
email :sales@taylor-studwelding.com
WEB :www.taylor-studwelding.com
SALES DIRECT TEL :+44 (0)1924 487703
TECHNICAL HELPLINE :+44 (0)1924 487701
You may wish to record the details of your controller below as this informaon will help
with any technical assistance you may require:
PURPOSE AND CONTENT OF THIS GUIDE
This guide has been wrien for :
• The personnel of the end-user responsible for the installaon and maintenance of the
pistol.
• The operator of the welding pistol.
This guide contains informaon relang to :
• Installaon and connecon.
• Operaon.
• Technical specicaons and parameters.
• Spare parts.
PISTOL SERIAL No.
DATE PURCHASED.
1C
4
USEFUL INFORMATION
FURTHER INFORMATION
Should you require addional technical informaon, please contact us directly (details
on previous page) or our local agent / distributor (details of agents etc. can be obtained
from us).
This guide contains important informaon which is a pre-requisite for safe Operaon
of the pistol. The operang personnel must be able to consult this guide when necessary. In
the interests of safety, make this guide available to your personnel in good me.
If the pistol is sold / passed on, please hand over this manual to the new owner and if
possible please inform us of the name and address of the new owner, in case we need to
contact him regarding the safety of the machine.
PLEASE READ THIS GUIDE CAREFULLY BEFORE INSTALLING OR OPERATING THE
PISTOL.
PLEASE OBSERVE CAREFULLY ALL SAFETY PROCEDURES/INSTRUCTIONS.
DUE TO THE POWER REQUIREMENTS AND ELECTROMAGNETIC EMISSIONS
PRODUCED DURING NORMAL USE, THIS PISTOL MUST ONLY BE OPERATED IN
AN INDUSTRIAL ENVIRONMENT.
NEVER REMOVE ANY PORTION OF THE UNIT HOUSING WITHOUT FIRST
ISOLATING THE PISTOL FROM THE CONTROLLER.
Taylor Studwelding Systems Limited reserves the right to amend the contents of this guide without nocaon.
1C
5
IMPORTANT SAFETY INFORMATION !
PROTECT YOURSELF AND OTHERS !
Read and understand these safety notes.
1. ELECTRICAL
No poron of the outer cover of the welding pistol should be removed by anyone other
than suitably qualied personnel and never whilst mains power is connected.
ALWAYS DISCONNECT THE MAINS LEAD BEFORE ATTEMPTING ANY
MAINTENANCE.
BEWARE - RISK OF ELECTRIC SHOCK !
Do not use any uids to clean electrical components as these may penetrate into the
electrical system.
Installaon must be according to the seng up procedure detailed on page 8 of this guide
and must be in line with naonal, regional and local safety codes.
2. FIRE
During welding small parcles of very hot metal are expelled. Ensure that no combusble
materials can be ignited by these.
3. PERSONNEL SAFETY
Arc rays can burn your eyes and skin and noise can damage your hearing. Operators and
personnel working in close proximity must wear suitable eye, ear and body protecon.
Fumes and gases can seriously harm your health. Use the equipment only in a suitably
venlated area. If venlaon is inadequate, then appropriate fume extracon equipment
must be used.
Hot metal spaer can cause re and burns. Appropriate clothing must be worn. Clothing
made from, or soiled with, combusble materials must NOT be worn.
Have a re exnguisher nearby and know how to use it.
Magnec elds from high currents can aect heart pacemakers or other electronically
controlled medical devices. It is imperave that all personnel likely to come into the vicinity
of any welding plant are warned of the possible risks before entering the area.
4. MAINTENANCE
All cables must be inspected regularly to ensure that no danger exists from worn or
damaged insulaon or from unsound electrical connecons. Special note should be made
of the cables close to the pistol, where maximum wear occurs. As well as producing
inconsistent welds, worn cables can overheat or spark, giving rise to the risk of re.
1C
6
IMPORTANT SAFETY INFORMATION !
5. TRAINING
Use of the equipment must be limited to authorised personnel only who must be suitably
trained and must have read and understood this manual. This manual must be made
available to all operators at all mes. Further copies of this manual may be purchased from
the manufacturer. Measures must be taken to prevent the use of this equipment by
unauthorised personnel.
6. INSTALLATION
Ensure that the site chosen for the equipment is able to support the weight of the
equipment and that it will not fall or cause a danger in the course of its normal operaon.
Do not hang connecng cables over sharp edges and do not install connecng cables near
heat sources or via trac routes where people may trip over them or they may be
damaged by the passage of vehicles (forklis etc).
7. INTERFERENCE
During welding operaons, intense magnec and electrical elds are unavoidably produced
and these may interfere with other sensive Electronic equipment.
All Taylor Studwelding equipment is designed, manufactured and tested to conform to the
current appropriate European standards and direcves regarding electromagnec
emissions and immunity and as such is safe to use in any normal environment.
8. DISPOSAL
The equipment either wholly or any of its component parts may be disposed of as part of
general industrial waste or passed to a scrap merchant. None of the components used in
the manufacture are toxic, carcinogenic or harmful to health in their “as supplied”
condion.
1C
7
INTRODUCTION TO STUDWELDING
The Taylor Studwelding DA7-B studwelding pistol when matched with an appropriate
controller and earth cables is intended for precision stud welding up to 12 mm diameter full
base studs. The pistol is lightweight, ergonomic and has been designed to operate with a
minimum amount of maintenance.
The energy required to carry out the welding operaon is derived from an appropriate
studwelding controller.
Taylor Studwelding Systems Ltd controllers are modern, robustly designed and oer
maximum reliability combined with an easy to understand operator interface.
THE PROCESS
The process of drawn arc studwelding is long established and well proven. The basic steps
are as follows :
• A measured amount of weld stud protrusion is set at the welding pistol.
• Once in posion, the pistol lis the stud away from the work-piece, simultaneously
striking an arc between the two.
• Both the p of the weld stud and the surface of the work-piece melt as the arc is
sustained for a pre-determined interval.
• At the compleon of the pre-determined interval, the pistol returns the weld stud to
the molten pool on the work-piece, thus forming a weld.
The most common and tradional drawn arc welds have a weld duraon greater than
100ms and employ the use of a single use ceramic arc shield, commonly referred to as a
ferrule. This ferrule helps to protect the arc during the weld and assists in formaon of the
nal llet. Post welding the ferrule is removed and disposed of.
It is possible to stud weld without a ferrule. When using this method it is recommended
pracce to employ a suitable shielding gas to reduce the amount of porosity in the
completed weld and improve weld quality.
1C
8
SETTING UP AND WELDING
As standard, the DA7 pistol comes ed with standard legs
and a standard foot adaptor. The pistol has an M10 thread on
the weld sha. This enables the use of European type screw-
on chucks, enabling studs up to 12mm in diameter to be
welded (see g.1).
Other arrangements are available as shown in gs. 2 & 3.
In g.2 an adapter is ed to the weld sha to enable standard
UK and American taper ng drawn arc chucks to be used,
enabling studs up to 12mm in diameter to be welded.
In g.3 a 35mm gas foot arrangement using long legs and an
extended form of screw-on chuck allows for welding, with or
without gas.
Please refer to the accessories secon of this guide for
informaon regarding chucks and other accessories for the
pistol.
The DA7-B pistol is commonly referred to as a “ring li” pistol. This means the pistol has an
internal clutch, allowing for moderate inconsistencies in the length of the studs being
welded, without aecng weld quality.
1
2
3
1C
9
SETTING UP AND WELDING
Once you have selected the type and size of
stud you wish to weld and obtained the
correct chuck (see the accessories secon of
this guide for a list of available sizes), you will
need to set up the chuck and t it to the pistol.
On the page “An introducon to studwelding”,
under the heading “The Process” it explains
that a measured amount of stud protrusion is
set at the welding pistol.
To ensure that the correct amount of
protrusion will be available once the chuck is
ed to the pistol, it is important to set the
chuck correctly in the rst place. Some chucks
have a pre-determined depth (see right) which
will only allow a certain amount of the stud to
be inserted.
Other chucks have a backstop arrangement
that allows the depth of engagement to be
adjusted.
Regardless of which type of chuck is employed,
when welding with ceramic ferrules, it is
important that sucient stud length is
exposed to allow more than the “burn-o”
allowance of the stud to pass completely
through the ferrule. Insucient allowance may
result in the leading edge of the chuck hing
the back of the ferrule during welding. This
would result in failed welds.
In non-ferrule welding it is only necessary to
set the chuck so that sucient stud length is
exposed to prevent damage to the leading
edge of the chuck during welding.
1C
10
SETTING UP AND WELDING
Fit the chuck to the pistol (g.1) using the
appropriate wrench. Secure the chuck in posion
using a 17mm A/F wrench on the front locknut.
Failure to do so may result in damage to the
pistol.
Fit the ferrule grip into the foot adapter (g.2)
and secure in place with the set screws in the foot
adapter. Do not over-ghten the set screws as
this will result in damage to the ferrule grip.
Adjust the posion of the foot adapter using the
hex head screw on the underside of the front end
cap (g.3) to set the required stud protrusion
(g.4).
IMPORTANT ! It is necessary to check/reset the
protrusion when changing stud length/diameter.
Adjustment of the pistol li is achieved by turning
the rear end cap of the pistol (g.5) which has a
“click” detent. Clockwise rotaon reduces li and
one “click” is approx’ equal to a 0.25mm change
in li.
NOTE! It is possible to use UK type taper chucks.
The pistol will require an adapter (g.6) to take
the chucks and this will need to be ed to the
pistol sha in the same fashion as the Euro chuck.
Once the adapter is ed, chucks may be
inserted (g.7) and secured by gently tapping into
place. Chucks can then be removed using a twist
dri through the cross-drilled holes.
PLEASE NOTE! Informaon contained in this operang guide is
intended to assist in seng up the pistol. The suggested sengs are
intended as a starng point only. Fine tuning the sengs to achieve
the most sasfactory results is essenal and is the responsibility of
the user of the pistol.
12
3
4
5
6
7
2 - 3mm
Indice
Altri manuali Taylor Utensili elettrici
