36
IMPORTANT:
If you use a standoff guide with the torch, it must be adjusted to provide no more than
1/8”
standoff, less if possible. Long
standoff heights reduce cut capacity and quality. It also promotes rapid consumable wear and can prevent the pilot arc from
transferring.
How do I edge start a plasma cut?
Edge starts are the best type of start to promote consumable
and torch life. This reduces blow back of molten material and
allows a smooth gradual start of the arc and maximizes cutting
capacity.
1)
Line up the hole on the tip of the electrode on the edge of
the cut. Hold torch perpendicular to the cut initially, about
1/16”
off the metal. Slide the yellow safety lock and
squeeze the trigger. Wait for arc to start.
2)
Once the arc starts, wait for the arc to penetrate all the way
through the metal.
3)
As the torch penetrates the flame all the way through the
metal, tilt the torch so there is a slight lead in the flame if
metal is thin. If the metal being cut is thick, keep holding
torch in a nearly vertical position.
4)
Begin moving the torch in the direction of the cut. Main-
tain
1/16”
to
1/8”
standoff height.
5)
Move the torch fast enough so the sparks and flame trail
from the bottom edge at an angle of no more than 30° and
no less than 10° from perpendicular to the metal. Excess
angle of sparks/flame indicate too fast of travel speed or
practical cut capacity has been reached. Little or no angle
indicates too slow of travel speed.
0°
-
15°
TRAVEL
1/16”
EDGE START
How do I pierce start a plasma cut?
Piercing starts often result in rapid consumable wear and
excess blow back of molten metal deposited onto torch and
consumables. This should be done only as necessary on
thicker material.
1)
Tilt the torch in the direction of travel or toward the side
of the metal to be discarded or wasted at a 40° to 60°
angle. Slide the yellow safety lock and squeeze the trig-
ger. Wait for arc to start.
2)
Once the arc starts, wait for the arc to transfer from pilot
arc to the cutting arc.
3)
As the flame penetrates through the metal (at a sloped
angle) rotate the torch slowly to the vertical position. Tilt
the torch from 0°
-
15° for thin metal cuts, or hold it nearly
perpendicular for thicker metal cuts.
4)
Begin moving the torch in the direction of the cut. Main-
tain
1/16”
standoff height.
5)
Move the torch fast enough so the sparks and flame trail
from the bottom edge at an angle of no more than 30°
and no less than 10° from perpendicular to the metal.
Excess angle of sparks/flame indicate too fast of travel
speed or practical cut capacity has been reached. Little
or no angle indicates too slow of travel speed.
40°
-
60°
TRAVEL
1
PIERCE START
2
3
Component Identification and Explanation
Summary of Contents for PowerPro 164Si
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