
ULTRA-CUT 300 XT
1-� GENERAL INFORMATION Manual 0-5305
• Extracaremustbetakenwhentheworkplaceis
moist or damp.
• InstallandmaintainequipmentaccordingtoNEC
code, refer to item 9 in Subsection 1.03, Publica-
tions.
• Disconnectpowersourcebeforeperformingany
serviceorrepairs.
• ReadandfollowalltheinstructionsintheOperat-
ing Manual.
FIRE AND EXPLOSION
Fireandexplosioncanbecausedbyhotslag,sparks,or
the plasma arc.
• Besurethereisnocombustibleorammablemate-
rialintheworkplace.Anymaterialthatcannotbe
removedmustbeprotected.
• Ventilateallammableorexplosivevaporsfrom
theworkplace.
• Donotcutorweldoncontainersthatmayhave
held combustibles.
• Providearewatchwhenworkinginanarea
whererehazardsmayexist.
• Hydrogengasmaybeformedandtrappedunder
aluminumworkpieceswhentheyarecutunder-
water or while using a water table. DO NOT cut
aluminum alloys underwater or on a water table
unless the hydrogen gas can be eliminated or dis-
sipated. Trapped hydrogen gas that is ignited will
cause an explosion.
NOISE
Noise can cause permanent hearing loss. Plasma arc
processescancausenoiselevelstoexceedsafelimits.
Youmustprotectyourearsfromloudnoisetoprevent
permanent loss of hearing.
• Toprotectyourhearingfromloudnoise,wearpro-
tectiveearplugsand/orearmuffs.Protectothers
intheworkplace.
• Noiselevelsshouldbemeasuredtobesurethe
decibels(sound)donotexceedsafelevels.
• Forinformationonhowtotestfornoise,seeitem
1 in Subsection 1.03, Publications, in this manual.
PLASMA ARC RAYS
PlasmaArcRayscaninjureyoureyesandburnyour
skin.Theplasmaarcprocessproducesverybrightultra
violetandinfraredlight.Thesearcrayswilldamage
youreyesandburnyourskinifyouarenotproperly
protected.
• Toprotectyoureyes,alwayswearaweldinghel-
met or shield. Also always wear safety glasses
withsideshields,gogglesorotherprotectiveeye
wear.
• Wearweldingglovesandsuitableclothingto
protectyourskinfromthearcraysandsparks.
• Keephelmetandsafetyglassesingoodcondition.
Replacelenseswhencracked,chippedordirty.
• Protectothersintheworkareafromthearcrays.
Useprotectivebooths,screensorshields.
• Usetheshadeoflensassuggestedinthefollowing
perANSI/ASCZ49.1:
Minimum Protective Suggested
Arc Current Shade No. Shade No.
Less Than 300* 8 9
300-400* 9 12
400-800* 10 14
* These values apply where the actual arc is clearly
seen. Experience has shown that lighter filters may
be used when the arc is hidden by the workpiece.
!
WARNING
WARNING: This product contains chemicals,
including lead, known to the State of California to
cause birth defects and other reproductive harm.
Wash hands after handling.
1.03 Publications
Refertothefollowingstandardsortheirlatestrevisionsfor
more information:
1. OSHA, SAFETY AND HEALTH STANDARDS, 29CFR
1910, obtainable from the Superintendent of Documents,
U.S.GovernmentPrintingOfce,Washington,D.C.20402
2. ANSIStandardZ49.1,SAFETYINWELDINGANDCUT-
TING,obtainablefromtheAmericanWeldingSociety,550
N.W.LeJeuneRd,Miami,FL33126
3. NIOSH,SAFETYANDHEALTHINARCWELDINGAND
GASWELDINGANDCUTTING, obtainablefromthe
SuperintendentofDocuments,U.S.GovernmentPrinting
Ofce,Washington,D.C.20402
4. ANSIStandardZ87.1,SAFEPRACTICESFOROCCUPA-
TION AND EDUCATIONAL EYE AND FACE PROTEC-
TION, obtainable from American National Standards
Institute,1430Broadway,NewYork,NY10018
5. ANSIStandardZ41.1,STANDARDFORMEN’SSAFETY-
TOEFOOTWEAR,obtainablefromtheAmericanNational
StandardsInstitute,1430Broadway,NewYork,NY10018
6. ANSIStandardZ49.2,FIRE PREVENTION IN THE USE
OF CUTTING AND WELDING PROCESSES, obtainable
fromAmericanNationalStandardsInstitute,1430Broad-
way,NewYork,NY10018
7. AWSStandardA6.0,WELDING AND CUTTING CON-
TAINERS WHICH HAVE HELD COMBUSTIBLES, obtain-