PS07569 Plasma 375 Plasma Cutter Kit Assembly & Operating Instructions Manual
7
Connect the grounding cable to the positive (+) receptacle.
OPERATION
High voltage danger from power source! Consult a qualified electrician for proper installation of
receptacle at the power source. This cutter must be grounded while in use to protect the operator
from electrical shock. If you are not sure if your outlet is properly grounded, have it checked by a
qualified electrician. Do not cut off the grounding prong or alter the plug in any way and do not use
any adapters between the cutter’s power cord and the power source receptacle. Make sure the
POWER switch is OFF then connect your welder’s power cord to a properly grounded 230 Vac
(220v-240v), 60Hz, single phase, 50 amp power source.
Check the plasma cutter to see if it has been connected correctly and is in good working condition and
that it complies with safe operation requirements.
Switch on the power supply switch of the cutter to observe if the operation is normal. If it is normal, the
fan should start up and the Power Supply Indicator Light should be on. If there is no compressed air or
the air pressure is low the Low Pressure Indicator Light will be on.
Adjust the air supply valve until the air pressure is up to the cutting torch requirement. (Lowest pressure
should be no less than 50 PSI), the Low Pressure Indicator Light will not be lit up in those conditions.
Adjust the air flow to be sure it is consistent.
Pull the torch trigger. The cutting operation begins after the cutting plasma pilot arc is made.
Metal Sheet Cutting
Put the torch’s nozzle at the start of the work piece. Turn on the torch switch to ignite the plasma pilot.
After the work piece is cut thorough, move the torch along the cutting direction uniformly. The cutting
speed is determined by watching to see if the cutting goes all the way through. If the speed is too fast,
the work piece won’t be cut thorough, or if too slow, the cut quality would be affected, excessive
warping may occur, or the arc could stop.
When you’ve completed the cutting process, turn off the torch; the plasma pilot arc will stop.
Metal Mesh Cutting
Fix the work piece and connect the earth cable with the work piece.
Put the cutting nozzle onto the work piece, lift torch up slightly from the work piece and turn on the
switch to cut.
Unnecessary igniting of the pilot arc in the air will reduce the life-span of the torch’s electrode.
It is best to start cutting at the edge of the work piece, unless you are piercing the work piece.
Keep a space between the nozzle and the work piece. Pressing the nozzle on the work piece could
cause the nozzle to stick, reducing the smoothness of the cutting action creating an undesirable result.
Keep the torch’s nozzle vertical against the work piece, and watch to be sure the arc is moving along
the cutting line.
