Use the shortest possible lengths of hose to avoid damage, reduce pressure drop, and prevent
possible volume flow restriction. Let the hose lie as straight as possible to prevent kinks when
interconnecting system components. Coil excess hose and place it out of the way to prevent
damage and reduce tripping danger.
Check hose regularly for wear, leaks, loose connections, or damage from heat, flames or sparks.
Immediately replace damaged or unreliable hose!
Pressure Regulators - Maintain all pressure regulators used on the Plasma Unit of the Vulcan in
proper working order to avoid failure
and danger to operating personnel. Do not use any regulator
that leaks, creeps excessively, or is otherwise damaged. It is strongly recommended that any
malfunctioning equipment be serviced only by trained technicians, at it’s manufacturer’s designated
facility.
NEVER lubricate regulator(s) with oil or grease and do not use a regulator for any gas other than that
for which it was designed.
NOISE PREVENTION - The plasma cutting process can generate high levels of noise. Depending
upon the arc current, material being cut, acoustics, and size of the cutting room, distance from the
torch, and other factors, acceptable noise levels as defined by national, state, or local codes may
be exceeded by your plasma system.
GROUNDING - Before operating the plasma system:
Input Power - Be sure the power cord is plugged into a properly grounded outlet or that the power cord
ground wire is properly connected to the ground in the disconnect box. If installation of the plasma
system involves connecting a power cord to the power supply, ensure that the power cord ground
wire is properly connected. Conform to national, state, and local standard when fastening the power
ground wire to the power supply chassis. CSA standards recommends placing the power cord
ground wire on the stud first; then place the other wires on top of the power cord ground. Fasten the
retaining nut tightly.
Make sure that all electrical connections are tight to avoid excessive heating.
Input Power - Connect ground lead of power input cable to both electrical system ground in
disconnect box, and to ground stud in Plasma Unit power supply. Be certain all ground lugs are large
enough to carry rated current load and make all connections tight to prevent resistance heating.
Output Power - Connect all positive output ground leads to cutting table Star Ground (referred to,
and illustrated in Section 1). Connect Star Ground to reliable Earth Ground. Refer to National
Electrical Code,
Grounding Electrode System or other appropriate source for suitable Ground
specifications.
Work Table - Clamp the work cable with good metal-to-metal contact to the workpiece (not the drop
off portion) or to the work table itself.
Connect the work table to a good earth ground. Consult the U.S. National Electrical Code, Article 250,
Section H Grounding Electrode System, or other appropriate national, state, or local codes.
For additional information, refer to the index at the rear of this section.
ELECTRIC AND MAGNETIC FIELDS (EMF)
Plasma arc cutting systems create electric and magnetic fields that may interfere with the correct
operation of electronic health support equipment, such as pacemakers or hearing aids. Anyone who
wears a pacemaker or hearing aid should consult a doctor before operating or being near any plasma
system when it is in use. To minimize exposure to EMF: (1) Keep both the work cable and the torch
lead on one side of your body. Keep your body from coming in between the torch lead and the work
cable. (2) Keep the distance of work cable to the table as short as possible to eliminate loop areas.
(3) Route torch leads as close as possible to work cable. (4) Do not wrap the torch lead or work cable
around your body. (5) Stay as far away from power source as possible.
Safety... Page 5
H. WEISS MACHINERY & SUPPLY
H. WEISS MACHINERY & SUPPLY
PHONE: (718) 605-0395 - www.hweiss.com
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