Valley FABRICATOR 251, Руководство по обслуживанию

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FABRICATOR 251 SERVICE MANUAL
2-2 August 22, 2008
2.04 General Information
The Fab r icato r 251 is a semiautomatic Gas Metal A r c
Welde r (GMAW-commonly MIG) with an integ r ated wi r e
feed unit. This Powe r Supply is designed to meet the b r oad
ope r ating needs of the metal fab r ication indust r y whe r e
p r oduction efficiency is vital. The Fab r icato r 251 is
designed and manufactu r ed to meet the r equi r ements of
CSA and IEC 60974-1 standa r ds.
The Fab r icato r 251 gives excellent pe r fo r mance on mild
steel, stainless steel, aluminum, silicon b r onze and some
ha r d facing wi r es with A r gon based shielding gases. The
Powe r Supply also gives excellent r esults on mild steel
using Ca r bon Dioxide shielding gas.
The Fab r icato r 251 is supplied as a complete package
r eady to weld (apa r t f r om gas cylinde r and elect r ode wi r e).
The following inst r uctions detail how to co rr ectly set up
the welde r and give guidelines on gaining the best
p r oduction efficiency f r om the Powe r Supply. Please r ead
these inst r uctions tho r oughly befo r e using you r Fab r icato r
welde r .
2.05 Safety
The following basic safety r ules should always be fol-
lowed:
• Ensu r e the machine is co rr ectly installed, if neces-
sa r y, by a qualified elect r ician.
• Ensu r e the Powe r Supply is g r ounded co rr ectly
(elect r ically) in acco r dance with local r egulations.
• Excessive heat in the welding cables may cause fi r e.
Neve r weld with poo r elect r ical connections, dam-
aged welding cables o r exceed the welding cable
cu rr ent r ating as this will p r oduce excessive heat
and may cause a fi r e.
• Always wea r the co rr ect p r otective clothing fo r p r o-
tection f r om spa r ks, molten pa r ticles and a r c r ays.
• When welding in confined spaces, always ensu r e
adequate ventilation and constant obse r vation of the
ope r ato r .
• Keep combustible mate r ials away f r om the welding
a r ea. Have a suitable fi r e extinguishe r handy.
• Neve r watch the welding a r c with naked eyes. Al-
ways use and wea r a welding mask fitted with the
co rr ect filte r lens.
• Do not stand on damp g r ound when welding.
Fo r mo r e complete safety advice please r ead section 1.
2.06 Protective Filter Lenses
P r otective filte r lenses a r e p r ovided to r educe the intensity
of r adiation ente r ing the eye thus filte r ing out ha r mful
inf r a r ed, ult r aviolet r adiation and a pe r centage of the
visible light. Such filte r lenses a r e inco r po r ated within face
shields. To p r event damage to the filte r lenses f r om molten
o r ha r d pa r ticles an additional ha r d clea r glass o r special
plastic exte r nal cove r lens should be used. This cove r
lens should always be kept in place and r eplaced befo r e
the damage impai r s you r vision while welding.
Approximate range of
welding current
Filter lens
required for
MIG
Up to 150 Shade 10
150-250 Shade 11
250-300 Shade 12
300-350 Shade 13
Ove r 350 Shade 14
Table 2-1: Filte r Lens Size Ve r sus Welding Cu rr ent
It is r ecommended to use a welding helmet, confo r ming
to the local r elevant Standa r ds when elect r ic a r c welding.
Use a welding helmet in se r viceable condition with the
co rr ect filte r lens. Refe r to Table 2-1 above and AWS table
in Section 1.
2.07 User Responsibility
This equipment will pe r fo r m as pe r the info r mation
contained he r ein when installed, ope r ated, maintained and
r epai r ed in acco r dance with the inst r uctions p r ovided. This
equipment must be checked pe r iodically. Defective
equipment (including welding leads) should not be used.
Pa
r ts that a r e b r oken, missing, plainly wo r n, disto r ted o r
contaminated, should be r eplaced immediately. Should
such r epai r s o r r eplacements become necessa r y, it is
r ecommended that such r epai r s be ca rr ied out by
app r op r iately qualified pe r sons app r oved by Valley
National Gases. Advice in this r ega r d can be obtained by
contacting Valley National Gases.
This equipment o r any of its pa r ts should not be alte r ed
f r om standa r d specification without p r io r w r itten app r oval
of Valley National Gases. The pu r chase r of this equipment
shall have the sole r esponsibility fo r any malfunction which
r esults f r om imp r ope r use o r unautho r ized modification
f r om standa r d specification, faulty maintenance, damage
o r imp r ope r r epai r by anyone othe r than app r op r iately
qualified pe r sons app r oved by Valley National Gases.