Thermal Arc Fabricator 140, Руководство по обслуживанию, Страница: 40 / 84

FABRICATOR 140, 180 OPERATION
Manual 0-4992 4-4 Janua r y 25, 2008
4.03 Gas Metal Arc Welding (GMAW)
See Welding Guidelines included in this manual.
Make all necessa r y connections as inst r ucted in the
INSTALLATION chapte r .
Place the WELD VOLTAGE RANGE SWITCH at the desi r ed
setting.
CAUTION
Do not tu r n the WELD VOLTAGE RANGE
SWITCH clockwise past position 4, as damage
to the switch may occu
r .
Rotate the WIRE SPEED cont r ol to the desi r ed setting.
Plug the supply co r d into a 120 VAC 20 Ampe r e r eceptacle
fo r the Fab r icato r 140, and into a 230 VAC 30 Ampe r e
r eceptacle fo r the Fab r icato r 180.
Open the gas cylinde r valve to supply shielding gas to the
gun.
Connect the WORK CLAMP to the wo r kpiece (mate r ial to
be welded).
Extend wi r e f r om the gun, and cut to p r ope r stick-out fo r
that type of wi r e (when welding always maintain this
distance).
Position gun to whe r e it is at app r oximately r ight angles
to the wo r kpiece with p r ope r wi r e stick-out. Lowe r you r
welding helmet and pull the gun t r igge r switch.
!
WARNING
Be su r e to put on p r ope r p r otective clothing
and eye safegua r ds (welding coat, ap r on,
gloves, and welding helmet with p r ope r lenses
installed). See Safety Inst r uctions and
Wa r nings chapte r included in this manual.
Neglect of these p r ecautions may r esult in
pe r sonal inju r y.
T r avel at a speed necessa r y to maintain a bead width f r om
1 /
8
" to ¼" (3mm to 6mm) depending on the thickness of
the mate r ial. Fo r mate r ial that may r equi r e la r ge r
weldments, eithe r change to a la r ge r diamete r fille r wi r e
o r use multi pass beads. On some applications, it may be
necessa r y to adjust the voltage r ange to stabilize the a r c.
Upon completion of the weld, r elease the gun t r igge r
switch, r aise the welding helmet, and visually examine
the weld.
NOTE
To help you ove r come any p r oblems that might
a r ise, you will find useful info r mation in section
4.08 Basic Welding Techniques.
4.04 Flux Cored Arc Welding (FCAW)
Follow the same gene r al p r ocedu r e as with the GMAW
p r ocess above. Shielding gas is not r equi r ed fo r self
shielded type wi r es. Fo r diffe r ences in the p r ocess see
section 4.06 Basic Welding Techniques. Also included is
info
r mation to solve any p r oblem r elated to the FCAW
p r ocess.
4.05 Shutdown Procedures
Close the cylinde r valve (GMAW p r ocess only). P r ess gun
switch to vent gas line (GMAW p r ocess only). Place the
POWER ON/OFF SWITCH in the OFF position.
!
WARNING
Afte r r eleasing the gun switch, the elect r ode
wi r e will r emain elect r ically “hot” fo r seve r al
seconds.