MasterCraft WS0973 Manuel D'utilisation Et De Pièces page 4

Arc Welder
Operation
1. Be sure to read,
understand, and comply
with all precautions in the
General Safety
Information section. Be sure to read
the entire section entitled Welding
Guidelines prior to using this
equipment.
2. Turn welder off and plug into
appropriate receptacle:
115 V 15 A - Low
115 V 20 A - High
3. Verify that the surfaces of metals to
be joined are free from dirt, rust,
paint, oil, scale or other contaminants.
These contaminants make welding
difficult and cause poor welds.
All persons
WARNING
!
operating this
equipment or in the area while
equipment is in use must wear
protective welding gear including: eye
protection with minimum shade 10
lens, flame resistant clothing, leather
welding gloves, and full foot
protection.
WARNING
!
If heating, welding, or
cutting materials that are
galvanized, zinc plated, lead, or
cadmium plated refer to the General
Safety Information Section for
instructions. Extremely toxic fumes are
created when these metals are heated.
4. Connect the work clamp to the
workpiece. Make sure the contact is
on bare metal and not obstructed
by paint, varnish, corrosion, or non-
metallic materials.
5. Insert the exposed part of the
electrode rod (the end with no flux)
into the jaws of the electrode
holder.
WARNING
!
electrically "live" (current potential)
when the welder is on.
MANUAL
WARNING
!
surface may produce an arc which could
cause sparks and damage eyesight.
6. Hold the electrode away from the
grounded workpiece or workbench.
Turn on the welder to either High
or Low. Refer to the following chart
for proper output setting.
7. Position the electrode to begin
Electrode
Diameter
1/16" (1.6 mm)
5/64" (2 mm)
weld, lower the welding helmet or
position the hand shield, and strike
an arc. Adjust output setting as
needed.
8. When finished welding, turn welder
off and store properly.
DUTY-CYCLE / THERMOSTATIC
PROTECTION
Welder duty-cycle is the percentage of
actual weld time that can occur in a
ten minute interval. For example, at a
10% duty-cycle, actual welding can
occur for one minute, then the welder
must cool for nine minutes.
Internal components of this welder are
protected from overheating with an
automatic thermal switch. A yellow
lamp is illuminated on the front panel
if the duty-cycle is exceeded. Welding
operations may continue when the
yellow lamp is no longer illuminated.
The electrode Maintenance
holder and rod are
!
machine off before inspecting or
Grounding against
servicing any components.
any metallic
Before every use:
1. Check condition of weld cables and
2. Check condition of power cord and
3. Check condition of electrode holder
Output
Setting
Low
High
!
with cracked or missing insulation on
welding cables, electrode holder, or
power cord.
Every 3 months:
Replace any unreadable labels on the
welder. Use compressed air to blow all
dust and lint from the ventilation
openings.
4
Disconnect power
WARNING
supply and turn
immediately repair or replace any
cables with damaged insulation.
immediately repair or replace any
cord if damaged.
insulating pieces and immediately
replace cracked or missing
insulators. Verify that all fasteners
are tight and insulated.
Do not operate this
WARNING
welding machine