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5. CABLE ASSEMBLIES
5.1.
Work Clamp
5.1.1. Feed the cable through the slot in the work clamp, as shown, and remove the
pre-cut section of insulation.
5.1.2. Loosen or remove the two nuts ‘A’ so that the bared end of the cable
can be inserted between the clamp jaw ‘B’ and the copper electrode ‘C’.
5.1.3. Tighten the nuts ‘A’ to clamp the cable end.
5.2.
Electrode Holder
5.2.1. Pull the handle ‘A’ from the head ‘B’ and thread the free end of the cable
through it, as shown. Remove the pre-cut section of insulation from the cable end.
5.2.2. Loosen the clamp screw ‘C’ and fit the bared cable core under the
clamp plate ‘D’, as shown.
5.2.3. Tighten screw ‘C’ to clamp the cable end.
5.2.4. Refit the handle to the head.
6.
WELDING MASK
6.1.
Assembly
6.1.1. Fold sides and top of mask as shown below and press pins (on edges of top) through holes in top of sides. Ensure that pins snap fully
into the holes. Note that the recess for the filter glass is on the outside.
6.1.2. Remove the two screws (2) and the nut (1) from the handle moulding (4).
6.1.3. Fit the handle (4) to the front of the mask as shown, and retain with the nut (1).
6.1.4. Locate the filter glass (3) in the recess and retain with the two screws (2) - hand tighten only to prevent damage to the plastic threads.
6.2.
Use
6.2.1. Always hold mask close to the face to
provide maximum protection from radiation
and droplets of molten metal.
6.2.2. Before each use check that the mask is
undamaged and that the filter glass is in
position and firmly retained. Remove any
metal droplets that may be on the glass.
Danger! Never use a filter glass that is chipped,
cracked or otherwise faulty as severe eye
damage may result.
Warning! Do not allow the mask to come into
contact with flame as the fumes produced are
harmful.
6.2.3. Clean with soapy water, do not use solvents.
7. CONTROLS
7.1.
CONTROLS Figures 4& 5.
D.
Rocker switch. Turns mains power on and off. ( Situated on back panel.)
E.
Potentiometer: Regulates welding current with graduated scale in Amps. May
be regulated during welding.
F.
Green LED, mains power indicator, machine ready (fig 5).
G.
Yellow LED: normally off, when on it means no welding current due one of the
following faults:
1. Thermal protection: Inside machine the temperature is excessive. The
machine is ON but does not deliver current until a normal temperature is
reached. Once this happens the re-start is automatic.
2. Mains over/under voltage protection: When mains voltage is too high
(over260V ac) or too low (under 190V ac) the machine is blocked.
3. Short Circuit protection: in case there is a short-circuit lasting more than 1.5
seconds (i.e. electrode sticking), machine stops. Re-start is automatic.
8. PREPARATION
The welding current must be regulated according to the diameter of the
electrode in use and the type of joint to be welded. See diameter / current
chart to the right:
Further consideration must be given to the location of a weld, for example:
Welds that are performed on a horizontal surface require a higher voltage than
those performed on a vertical or overhead surface.
The mechanical character of the weld will be determined not only by the current
intensity used, but also by the diameter and quality of the electrode, the length
of arc, the speed and position of the user. The condition of the electrode is an
important factor and must never be wet or damp.
fig 4
fig 5
Electrode Diameter (mm)
1.6 . . . . . . . . . . . . . . . . . . . . .25 . . . . . . . . . .50
2 . . . . . . . . . . . . . . . . . . . . . .40 . . . . . . . . . .80
2.5. . . . . . . . . . . . . . . . . . . . . .60 . . . . . . . . .110
3.2 . . . . . . . . . . . . . . . . . . . . .80 . . . . . . . . .160
4 . . . . . . . . . . . . . . . . . . . . .120 . . . . . . . . .200
Welding Current (Amp)
Min
Max
MW100, MW130 -1 - 300502
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