Valley FABRICATOR 251, Руководство по обслуживанию

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3-4 August 22, 2008
FABRICATOR 251 SERVICE MANUAL
3.06 Quick Setup
CAUTION
To obtain adequate ai r flow and cooling fo r
the Powe r Supply components, the fou r
wheels must be fitted. Alte r natively, the Powe r
Supply may be r aised 5.5" (140 mm)f r om the
floo r using suppo r ts that do not r est r ict
ai r flow.
NOTE
The steps in this subsection a r e intended fo r
individuals expe r ienced in the set up of this
type welde r . Mo r e detailed setup inst r uctions
a r e in the 3.07 and following subsections.
1. Connect the wo r k lead to the negative (-) socket
(po fo r Self Shielded Flux Co r ed Wi r e)
2. Connect the GUN lead to the positive (+) socket
(negative - fo r Self Shielded Flux Co r ed Wi r e)
NOTE
See section 3.15 "Pola r ity Changeove r " fo r
mo r e detail and exceptions!
3. Position a gas cylinde r on the r ea r t r ay and secu r e
to the Powe r Supply cylinde r b r acket with the
chain p r ovided. If this a rr angement is not used
then ensu r e that the gas cylinde r is secu r ed to a
building pilla r , wall b r acket o r othe r wise secu r ely
fixed in an up r ight position.
!
WARNING
If the gas cylinde r is not secu r ed to the
cylinde r t r ay, the powe r supply must be kept
f r om moving to avoid ove r -extending the gas
hose which can r esult in pe r sonal inju r y,
damage to the powe r supply, flow mete r and
gas cylinde r .
4. Fix the cable stowage hook to the Powe r Supply
cylinde r b r acket with the bolts p r ovided.
5. Fit the gas Regulato r /Flow Mete r to the gas
cylinde r and connect the gas hose f r om the r ea r
of the Powe r Supply to the Flow Mete r outlet.
6. The machine is fitted with a .035/.045” vee g r oove
feed r oll suited fo r ha r d wi r e. Change this feed
r oll if r equi r ed to fit you r chosen wi r e size.
7. Fit the elect r ode wi r e spool to the wi r e r eel hub
located behind the elect r ode wi r e compa r tment
doo r .
8. Fit the Valley National Gases MIG gun and t r igge r
wi r es th r ough/to the f r ont of the unit.
9. Remove the contact tip f r om the gun.
10. With the gun lead r easonably st r aight, feed the
wi r e th r ough the wi r e d r ive r olls and gun.
11. Fit the app r op r iate contact tip and r eplace insulato r
and nozzle.
3.07 Installation of Shielding Gas
(GMAW) Process
NOTE
Shielding Gas is not r equi r ed if the unit is used
with self shielded FCAW (flux co r ed a r c
welding) wi r es
1. Cylinder positioning: Block the wheels of the unit so
it cannot r oll. Ca r efully stand the cylinde r on the t r ay
and with one foot, p r ess against the bottom of the
cylinde r to assu r e it is against the back of the unit.
Chain the cylinde r in place. (Refe r to Figu r e 3-2 fo r
Wheel Kit cylinde r installation)
2. Cracking: Remove the la r ge metal cap on top of the
cylinde r by r otating counte r clockwise. Next r emove
the dust seal. Position you r self so the valve is pointed
away f r om you and quickly open and close the valve
fo r a bu r st of gas. This is called “C r acking” and is
done to blow out any fo r eign matte r that may be
lodged in the fitting. (Figu r e 3-2.)
3. Fit Regulator/Flow Meter to cylinders: Sc r ew the
r egulato r into the app r op r iate cylinde r . (Figu r e 3-2)
The nuts on the r egulato r and hose connections a r e
r ight hand (RH) th r eaded and need to be tu r ned in a
clockwise di r ection in o r de r to tighten. Tighten with a
w r ench.
CAUTION
Match r egulato r to cylinde r . NEVER CONNECT
a r egulato r designed fo r a pa r ticula r gas o r
gases to a cylinde r containing any othe r gas.
4. Attach supplied gas line between the r egulato r output
and the desi r ed input at the r ea r of the powe r supply
depending on Spool Gun o r MIG Gun use. (Refe r to
Figu r e 3-2 and 3-12).