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OM-322 Page 2

Arc rays from the welding process produce intense
visible and invisible (ultraviolet and infrared) rays
that can burn eyes and skin. Sparks fly off from the
weld.

ARC RAYS can burn eyes and skin.

D

Wear a welding helmet fitted with a proper shade of filter to protect
your face and eyes when welding or watching (see ANSI Z49.1
and Z87.1 listed in Safety Standards).

D

Wear approved safety glasses with side shields under your
helmet.

D

Use protective screens or barriers to protect others from flash and
glare; warn others not to watch the arc.

D

Wear protective clothing made from durable, flame-resistant mate-
rial (leather and wool) and foot protection.

Welding on closed containers, such as tanks,
drums, or pipes, can cause them to blow up. Sparks
can fly off from the welding arc. The flying sparks, hot
workpiece, and hot equipment can cause fires and

burns. Accidental contact of electrode to metal objects can cause
sparks, explosion, overheating, or fire. Check and be sure the area is
safe before doing any welding.

WELDING can cause fire or explosion.

D

Protect yourself and others from flying sparks and hot metal.

D

Do not weld where flying sparks can strike flammable material.

D

Remove all flammables within 35 ft (10.7 m) of the welding arc. If
this is not possible, tightly cover them with approved covers.

D

Be alert that welding sparks and hot materials from welding can
easily go through small cracks and openings to adjacent areas.

D

Watch for fire, and keep a fire extinguisher nearby.

D

Be aware that welding on a ceiling, floor, bulkhead, or partition can
cause fire on the hidden side.

D

Do not weld on closed containers such as tanks, drums, or pipes,
unless they are properly prepared according to AWS F4.1 (see
Safety Standards).

D

Connect work cable to the work as close to the welding area as
practical to prevent welding current from traveling long, possibly
unknown paths and causing electric shock and fire hazards.

D

Do not use welder to thaw frozen pipes.

D

Remove stick electrode from holder or cut off welding wire at
contact tip when not in use.

D

Wear oil-free protective garments such as leather gloves, heavy
shirt, cuffless trousers, high shoes, and a cap.

D

Remove any combustibles, such as a butane lighter or matches,
from your person before doing any welding.

FLYING METAL can injure eyes.

D

Welding, chipping, wire brushing, and grinding
cause sparks and flying metal. As welds cool,
they can throw off slag.

D

Wear approved safety glasses with side
shields even under your welding helmet.

BUILDUP OF GAS can injure or kill.

D

Shut off shielding gas supply when not in use.

D

Always ventilate confined spaces or use
approved air-supplied respirator.

HOT PARTS can cause severe burns.

D

Do not touch hot parts bare handed.

D

Allow cooling period before working on gun or
torch.

MAGNETIC FIELDS

 can affect pacemakers.

D

Pacemaker wearers keep away.

D

Wearers should consult their doctor before
going near arc welding, gouging, or spot
welding operations.

NOISE can damage hearing.

Noise from some processes or equipment can
damage hearing.

D

Wear approved ear protection if noise level is
high.

Shielding gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.

CYLINDERS can explode if damaged.

D

Protect compressed gas cylinders from excessive heat, mechani-
cal shocks, slag, open flames, sparks, and arcs.

D

Install cylinders in an upright position by securing to a stationary
support or cylinder rack to prevent falling or tipping.

D

Keep cylinders away from any welding or other electrical circuits.

D

Never drape a welding torch over a gas cylinder.

D

Never allow a welding electrode to touch any cylinder.

D

Never weld on a pressurized cylinder – explosion will result.

D

Use only correct shielding gas cylinders, regulators, hoses, and fit-
tings designed for the specific application; maintain them and
associated parts in good condition.

D

Turn face away from valve outlet when opening cylinder valve.

D

Keep protective cap in place over valve except when cylinder is in
use or connected for use.

D

Read and follow instructions on compressed gas cylinders,
associated equipment, and CGA publication P-1 listed in Safety
Standards.

Содержание Shopmaster 300 AC/DC

Страница 1: ...ster 300 AC DC Processes Description TIG GTAW Welding Stick SMAW Welding Flux Cored FCAW Welding Arc Welding Power Source OM 322 203 118A April 2002 MIG GMAW Welding Visit our website at www MillerWel...

Страница 2: ...value established in 1929 This Owner s Manual is designed to help you get the most out of your Miller products Please take time to read the Safety precautions They will help you protect yourself again...

Страница 3: ...NSTALLATION 9 2 1 Specifications 9 2 2 Volt Ampere Curves 9 2 3 Duty Cycle And Overheating 10 2 4 Selecting A Location 11 2 5 Dimensions And Weights 11 2 6 Weld Output Terminals And Selecting Cable Si...

Страница 4: ......

Страница 5: ...that cord plug is connected to a properly grounded receptacle outlet D When making input connections attach proper grounding conduc tor first double check connections D Frequently inspect input power...

Страница 6: ...lding wire at contact tip when not in use D Wear oil free protective garments such as leather gloves heavy shirt cuffless trousers high shoes and a cap D Remove any combustibles such as a butane light...

Страница 7: ...intained D Keep high frequency source doors and panels tightly shut keep spark gaps at correct setting and use grounding and shielding to minimize the possibility of interference ARC WELDING can cause...

Страница 8: ...a human health hazard However studies are still going forth and evidence continues to be examined Until the final conclusions of the research are reached you may wish to minimize your exposure to ele...

Страница 9: ...ation est bien raccord la borne de terre du sectionneur ou que la fiche du cordon est raccord e une prise correctement mise la terre D En effectuant les raccordements d entr e fixer d abord le conduct...

Страница 10: ...des v tements de protection d pourvus d huile tels que des gants en cuir une chemise en mat riau lourd des pantalons sans re vers des chaussures hautes et un couvre chef D Avant de souder retirer tou...

Страница 11: ...rements et dispositifs de protection LE RAYONNEMENT HAUTE FR QUENCE H F risque de provoquer des interf rences D Le rayonnement haute frequence peut provoquer des interf rences avec les quipements de r...

Страница 12: ...hamps magn tiques basse fr quence Le courant de soudage pendant son passage dans les c bles de sou dage causera des champs lectromagn tiques Il y a eu et il y a encore un certain souci propos de tels...

Страница 13: ...s AC 85 4 6 74 4 37 2 29 1 6 16 8 0 91 8 2 0 58 60 Hz NEMA Class II 50 300 CC 68 Volts DC 105 4 6 91 4 46 2 36 1 6 20 9 0 91 13 6 0 58 Amperes 32 Volts DC 50 Duty Cycle CV 40 Volts DC 103 7 90 6 2 45...

Страница 14: ...erheating If unit overheats thermostat opens output stops and cooling fan runs Wait fifteen minutes for unit to cool Reduce amperage or duty cycle be fore welding Y Exceeding duty cycle can damage uni...

Страница 15: ...label to determine input power needs 4 Line Disconnect Device Locate unit near correct input pow er supply Y Special installation may be required where gasoline or volatile liquids are present see NE...

Страница 16: ...0 2 4 0 802 933 FCAW GMAW 500 2 0 3 0 4 0 2 2 0 2 3 0 2 4 0 3 3 0 3 3 0 Weld cable size AWG is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere S 0...

Страница 17: ...ommended Standard Fuse Or Circuit Breaker Rating In Amperes Circuit Breaker1 Time Delay 2 125 110 50 45 Normal Operating 3 150 125 70 50 Min Input Conductor Size In AWG Kcmil 4 6 8 10 Max Recommended...

Страница 18: ...Select size and length using Section 2 9 4 Line Disconnect Device Select type and size of overcurrent protection using Section 2 9 Reinstall side panel Y Special installation may be required where gas...

Страница 19: ...ge Control Switch Switch selects front panel or remote amperage voltagecontrol For remote amperage voltage control front panel control setting is the maximum output available For example If front pane...

Страница 20: ...Clean And Tighten Weld Terminals 6 Months Blow Out Or Vacuum Inside During Heavy Service Clean Monthly OR 4 2 Circuit Breakers CB1 And CB2 Ref 802 932 Ref S 143 930 A 1 Circuit Breaker CB1 If CB1 open...

Страница 21: ...proper size and type of weld cable see Section 2 6 Clean and tighten all weld connections Check position of Output Selector switch see Section Figure 3 1 Have Factory Authorized Service Agent check co...

Страница 22: ...OM 322 Page 18 SECTION 5 ELECTRICAL DIAGRAM Figure 5 1 Circuit Diagram...

Страница 23: ...OM 322 Page 19 203 057 B...

Страница 24: ...OM 322 Page 20 SECTION 6 PARTS LIST 802 882 9 6 1 2 3 19 FIG 6 4 21 22 23 FIG 6 2 3 4 5 7 8 10 11 12 17 24 13 14 26 25 20 18 16 15 27 Figure 6 1 Main Assembly...

Страница 25: ...4 CR1 110386 RELAY ENCL 24VAC DPDT 5A 120VAC 8PIN 1 1 15 203066 BRACKET XFMR REACTOR 1 1 16 203064 BRACKET RECTIFIER 1 1 17 T1 203053 XFMR POWER MAIN 200 230 460 1 17 T1 203268 XFMR POWER MAIN 230 460...

Страница 26: ...OM 322 Page 22 802 885 Hardware is common and not available unless listed 17 18 19 1 2 3 4 5 5 6 7 8 9 10 11 6 12 13 11 14 12 15 16 20 21 Figure 6 2 Panel Front w Components...

Страница 27: ...STR DX GRD 2P3W 15A 125V 5 15R 1 1 14 C13 16 128750 CAPACITOR CER DISC 1 UF 500 VDC W TERMS 4 4 15 203060 PANEL FRONT 1 1 16 097922 KNOB POINTER 875 DIA X 250 ID W SET SCREWSPLSTC 1 1 17 203 010 LABEL...

Страница 28: ...4 203065 BRACKET MTG CAPACITOR 2 2 5 082902 STRIP MTG CENTER CAPACIT0R 1 1 6 191374 CAPACITOR ELCTLT 30000 UF 45 VDC CAN 1 75 DIA 8 8 7 R4 119998 RESISTOR WW FXD 300 W 5 OHM 1 1 8 180165 BLADE FAN 14...

Страница 29: ...Notes...

Страница 30: ...Notes...

Страница 31: ...tting Torches Remote Controls Accessory Kits Replacement Parts No labor Spoolmate Spoolguns Canvas Covers Miller s True Blue Limited Warranty shall not apply to 1 Consumable components such as contact...

Страница 32: ...complete and retain with your personal records Always provide Model Name and Serial Style Number Call 1 800 4 A Miller or see our website at www MillerWelds com to locate a DISTRIBUTOR or SERVICE AGEN...

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