10
Earth Clamp (12):
The earth clamp (12) forms an integral part of the
plasma cutting process. Fasten the earth clamp (12) to
the work piece to be cut, making sure that the clamp
is properly connected and has a adequate cross-section,
if the surface of the piece to be cut is painted, rusty or
covered with insulating material, clean the surface so
that satisfactory contact between the work piece and
the earth clamp (12) can be obtained (Fig. 4). Connect
only to the main part of the workpiece; do not connect
to the part to be cut off.
Plasma Torch (4):
Make sure that the plasma torch (4) has been assembled with the correct components and
that the cutting tip is suitable for the cutting current. The torch parts must correspond with the
type of operation, and with the amperage output of this power supply (25 amps maximum).
•
The installation of the torch’s parts should follow the order according to the pictures
listed blow (Fig. 5)
•
The shield cap (e) should be screwed tightly, but do not over tighten, finger tighten only.
•
Replace the nozzle (d) if burnt to a degree that it will affect the cutting slot.
•
The electrode (b) should be replaced in time when it worn down or shortened to
about 2mm.
WARNING!
Always direct the arc away from the user as sparks and molten
material will be ejected from the point of contact. Care should also be taken to
protect the work area from these sparks.
OPERATION (cont.)
Fig. 4
a
b
c d
e
Fig. 5
Part
Description
a.
Plasma torch handle
b.
Electrode
c.
Diffuser
d.
Nozzle
e.
Shield cap
!
