Specifications
CUTMASTER A120
Manual 0-4989  1-1  GENERAL INFORMATION
SECTION 1: 
GENERAL INFORMATION
1.01  Notes, Cautions and Warnings
Throughout this manual, notes, cautions, and warnings are used to 
highlight important information. These highlights are categorized as 
follows:
NOTE
An operation, procedure, or background information 
which requires additional emphasis or is helpful in ef-
ficient operation of the system.
 CAUTION
A procedure which, if not properly followed, may cause 
damage to the equipment.
!
 WARNING
A procedure which, if not properly followed, may cause 
injury to the operator or others in the operating area.
 WARNING
Gives information regarding possible electrical shock 
injury. Warnings will be enclosed in a box such as this.
1.02  Important Safety Precautions
!
 WARNING
OPERATION AND MAINTENANCE OF PLASMA ARC 
EQUIPMENT CAN BE DANGEROUS AND HAZARDOUS 
TO YOUR HEALTH.
Plasma arc cutting produces intense electric and 
magnetic emissions that may interfere with the proper 
function of cardiac pacemakers, hearing aids, or other 
electronic health equipment. Persons who work near 
plasma arc cutting applications should consult their 
medical health professional and the manufacturer of the 
health equipment to determine whether a hazard exists.
To prevent possible injury, read, understand and follow 
all warnings, safety precautions and instructions before 
using the equipment. Call 1-603-298-5711 or your local 
distributor if you have any questions.
 GASES AND FUMES
Gases and fumes produced during the plasma cutting process can be 
dangerous and hazardous to your health.
• Keepallfumesandgasesfromthebreathingarea.Keepyour
head out of the welding fume plume.
• Useanair-suppliedrespiratorifventilationisnotadequateto
remove all fumes and gases.
• Thekindsoffumesandgasesfromtheplasmaarcdependon
the kind of metal being used, coatings on the metal, and the 
different processes. You must be very careful when cutting 
or welding any metals which may contain one or more of the 
following:
 Antimony   Chromium  Mercury 
 Arsenic  Cobalt  Nickel 
  Barium  Copper  Selenium  
 Beryllium  Lead  Silver  
  Cadmium  Manganese  Vanadium
• AlwaysreadtheMaterialSafetyDataSheets(MSDS)thatshould
be supplied with the material you are using. These MSDSs 
will give you the information regarding the kind and amount of 
fumes and gases that may be dangerous to your health.
• Forinformationonhowtotestforfumesandgasesinyour
workplace, refer to item 1 in Subsection 1.03, Publications in 
this manual.
• Usespecialequipment,suchaswaterordowndraftcutting
tables, to capture fumes and gases.
• Donotusetheplasmatorchinanareawherecombustibleor
explosive gases or materials are located.
• Phosgene,atoxicgas,isgeneratedfromthevaporsofchlo-
rinated solvents and cleansers. Remove all sources of these 
vapors.
• Thisproduct,when usedforweldingorcutting,produces
fumes or gases which contain chemicals known to the State 
of California to cause birth defects and, in some cases, cancer.  
(California Health & Safety Code Sec. 25249.5 et seq.)
 ELECTRIC SHOCK
Electric Shock can injure or kill. The plasma arc process uses and 
produces high voltage electrical energy. This electric energy can cause 
severe or fatal shock to the operator or others in the workplace.
• Nevertouchanypartsthatareelectrically“live”or“hot.”
• Weardryglovesandclothing.Insulateyourselffromthework
piece or other parts of the welding circuit.
• Repairorreplaceallwornordamagedparts.
• Extracare mustbe takenwhentheworkplaceis moistor
damp.
• InstallandmaintainequipmentaccordingtoNECcode,refer
to item 9 in Subsection 1.03, Publications.
• Disconnectpowersourcebeforeperforminganyserviceor
repairs.
• ReadandfollowalltheinstructionsintheOperatingManual.
 FIRE AND EXPLOSION
Fireandexplosioncanbecausedbyhotslag,sparks,ortheplasmaarc.
• Besurethereisnocombustibleorammablematerialinthe
workplace. Any material that cannot be removed must be 
protected.










