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OM-629 Page 14

3-9.

Installing Mounting Brackets

1

Notched Mounting Bracket

Use existing screws from lower
edge of Maxstar wrapper and upper
edge of HF unit wrapper, and se-
cure notched brackets as shown.

1

ST-800 295-A

1/4, 5/16 in

Tools Needed:

SECTION 4 – OPERATION

4-1.

Controls

ST-800 293 / ST-801 480

1

Preflow Time Control

Sets length of time gas flows before
arc starts.

2

Postflow Time Control

Sets length of time gas flows after
welding stops.

3

Power And HF On/Off Switch

Down position: Turns unit Off.

Middle position: Turns unit On
with no HF. Use for scratch start
GTAW or if Touch Start feature on
welding power source is used.

Up position: Turns unit On with HF
for arc starting only.

HF starts when the weld output
contactor is closed and an open-cir-
cuit voltage of 50 volts or more is
present. HF stops when arc starts.

If arc is not started within 5 seconds
after contactor closes, HF stops.
Close contactor again to resume
HF.

4

Remote/Panel Amperage
Switch

Place in Remote position if using re-
mote amperage control. Place in
Panel position if controlling amper-
age from welding power source
front panel.

This switch overrides welding pow-
er source remote/panel amperage
switch.

1

2

3

4

Содержание Snap Start II

Страница 1: ...Snap Start II OM 629 177 029C April 2000 TIG GTAW Welding Description High Frequency Arc Starter Visit our website at www MillerWelds com...

Страница 2: ...alue 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 agains...

Страница 3: ...9 2 2 Symbol Definitions 9 SECTION 3 INSTALLATION 9 3 1 Typical Connections 9 3 2 Shielding Gas Connections 10 3 3 Remote 14 Connections 11 3 4 Remote 14 Receptacle Information 11 3 5 Remote 14 Plug...

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: ...vrements 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...

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: ...1 kg 2 2 Symbol Definitions A Amperage Seconds Negative Positive Gas Tungsten Arc Welding GTAW Panel Local Gas Input Gas Output Output On Voltage Input Off Work Connection Read Operator s Manual Pref...

Страница 14: ...lding Gas Connections ST 800 293 ST 801 480 1 Gas In Fitting Use to make connection to gas sup ply 2 Gas Out Fitting Use to make gas connection to torch Fittings have 5 8 18 right hand threads 1 5 8 1...

Страница 15: ...lts dc output to remote control C L N H D Remote control circuit common D M G E F E 0 to 10 volts dc input command signal from remote control E K Circuit common The remaining pins are not used 3 5 Rem...

Страница 16: ...3 ST 800 297 A Jumper links allow operation on dif ferent input voltages and are facto ry set for 115 volts ac Place jumper links to match input voltage as shown 1 Jumper Link Label 2 Input Voltage Ju...

Страница 17: ...as shown 7 Bushing Remove blank and install bushing into hole Be sure jumper links are installed for correct input power see Section 3 7 Reinstall wrapper routing accesso ry harness receptacle throug...

Страница 18: ...unit Off Middle position Turns unit On with no HF Use for scratch start GTAW or if Touch Start feature on welding power source is used Up position Turns unit On with HF for arc starting only HF start...

Страница 19: ...y Or 5 2 Adjusting Spark Gap Ref ST 801 481 A Ref S 0043 Y Turn Off power before ad justing spark gap 1 Tungsten End Of Point Replace point if tungsten end dis appears do not clean or dress tungsten 2...

Страница 20: ...r proper input power connections see Section 3 7 Be sure Power and HF On Off switch is in a Power On position see Section 4 1 Check fuse F1 see Section 5 3 Lack of high frequency difficulty in startin...

Страница 21: ...OM 629 Page 17 5 5 Circuit Diagram SB 184 968 C...

Страница 22: ...f Direct High Frequency Radiation 1 High Frequency Source welding power source with built in HF or separate HF unit 2 Weld Cables 3 Torch 4 Work Clamp 5 Workpiece 6 Work Table Sources of Conduction of...

Страница 23: ...and Fixtures Ground water pipes every 50 ft 15 m 7 External Power or Telephone Lines Locate high frequency source at least 50 ft 15 m away from power and phone lines 8 Grounding Rod Consult the Nation...

Страница 24: ...OM 629 Page 20 SECTION 7 PARTS LIST Hardware is common and not available unless listed ST 801 479 C Figure 7 1 Main Assembly...

Страница 25: ...E pwr 10ft 16ga 3 c 1 19 010 325 BUSHING strain relief 840 ID x 875mtg hole 2 20 605 227 NUT nyl hex jam 750NPST 1 21 115 104 CONNECTOR clamp cable 500 1 22 PLATE ident order by model and serial numbe...

Страница 26: ...AR 1 43 C2 199 119 CAPACITOR 1 44 010 381 CONNECTOR RECTIFIER 1 When ordering a component originally displaying a precautionary label the label should also be ordered Recommended Spare Parts To mainta...

Страница 27: ...ting Torches Remote Controls Accessory Kits Replacement Parts No labor Spoolmate 185 Spoolmate 250 Canvas Covers Miller s True Blue Limited Warranty shall not apply to 1 Consumable components such as...

Страница 28: ...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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