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OM-219 Page 19

4-2.

Removing Case And Discharging Input And Output Capacitors

Y

Significant DC voltage can
remain on capacitors after
unit is Off. Always discharge
capacitors as shown to be
sure they have discharged
before working on unit.

Turn Off welding power source and
cutter, and disconnect input power
and input air hose. Stop engine on
welding generator.

1

Bleeder Resistor (Not
Supplied, Part No.172 264)

Obtain or construct bleeder resistor
with specifications shown. Lead
connections must be soldered to
resistor.

2

Top Of Case

3

Guards

4

Bolts

5

Nuts

Remove top of case as shown.

6

Input Capacitors C1, C2

Peel back vinyl coating covering
capacitor terminals. Connect
bleeder resistor across terminals of
one capacitor, and wait for at least
10 seconds.

Repeat procedure for remaining ca-
pacitor.

7

Output Capacitor Discharge
Terminals

Peel back vinyl coating covering
capacitor terminals. Connect
bleeder resistor across discharge
terminals, and wait for at least 10
seconds. Remove bleeder resistor.

8

Bottom Of Case

To remove bottom of case, discon-
nect wiring harness of arc start
board (see Parts List, Section 7).

After task is complete, reconnect
harness (if needed), cover capaci-
tor terminals with suitable vinyl
coating, and reinstall case.

Tools Needed:

1

6

4

3

2

3

5

8

7

3/8, 7/16 in

Ref. ST-800 870-A

Bleeder Resistor

Specifications

Approx.

3 in

(76 mm)

Leads

5 Ohms, At Least 50 Watts,

#16 AWG 600 Volts DC

Insulation Rating

«
...
21
22
23
24
25
...
»

Содержание Spectrum Plus

Страница 1: ...Processes Description Air Plasma Cutting and Gouging Air Plasma Cutter OM 219 October 1995 Eff w Serial Number KE736265 Spectrum Plus R 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: ...ting Air Compressor 13 2 8 Input Power Connections To Cutter 14 SECTION 3 OPERATION 15 3 1 Controls 15 3 2 Cutting Current Control 15 3 3 Operation Mode Switch 16 3 4 Power Circuit Breaker Switch And...

Страница 4: ......

Страница 5: ...or matches from your person before doing any cutting Touching live electrical parts can cause fatal shocks or severe burns The torch and work circuit are electrically live whenever the output is on T...

Страница 6: ...sure the breathing air is safe D Do not cut in locations near degreasing cleaning or spraying oper ations The heat and rays of the arc can react with vapors to form highly toxic and irritating gases...

Страница 7: ...ference stop using the equipment at once D Have the installation regularly checked and maintained D Keep high frequency source doors and panels tightly shut keep spark gaps at correct setting and use...

Страница 8: ...magnetic fields is 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 yo...

Страница 9: ...nants qui ont d j re u des combustibles D Portez des v tements de protection exempts d huile tels que des gants en cuir une veste r sistante des pantalons sans revers des bottes et un casque D Ne plac...

Страница 10: ...a Sheets MSDS et les instructions du fabricant pour obtenir plus de renseignements sur les m taux couper les enrobages et les nettoyants D Travaillez dans un espace restreint uniquement s il est bien...

Страница 11: ...f rences avec les quipements de ra dio navigation et de communication les services de s curit et les ordinateurs D Demander seulement des personnes qualifi es familiaris es avec des quipements lectron...

Страница 12: ...urs en cours et les preuves continuent tre examin es En attendant que les conclusions finales de la recherche soient tablies il vous serait sou haitable de r duire votre exposition aux champs lectroma...

Страница 13: ...ty DCEN 200 Air Or Nitrogen Only 115 L min 70 PSI 483 kPa Optional 50 ft 15 2 m Machine Or Torch Cable 4 CFM 115 L min 90 PSI 921 kPa 2 2 Duty Cycle And Overheating Duty Cycle is percentage of 10 min...

Страница 14: ...5 ST 800 869 1 Lifting Handles Use lifting handles to lift unit 2 Hand Cart Use hand cart or similar device to move unit 3 Rating Label Use rating label to determine input power needs Locate unit near...

Страница 15: ...n when 50 volts or less input operating voltage is available To change current range setting proceed as follows Remove bottom and top of case ac cording to Section 4 2 1 Main Control Board 2 Dip Switc...

Страница 16: ...pper Length In Weld Circuit Not Exceeding 100 ft 30 m Or Less 150 ft 45 m 200 ft 60 m 250 ft 70 m 300 ft 90 m 350 ft 105 m 400 ft 120 m Weld Output Terminals Welding Amperes 10 60 Duty Cycle 60 100 Du...

Страница 17: ...essor Obtain air compressor and hose A quick connect fitting may also be installed onto air input fitting Con nect hose to air input fitting and route to air compressor Adjust air pressure according t...

Страница 18: ...ng connector of negative cable to negative in put terminal on cutter 6 Torch Install torch according to its owner s manual instructions 7 Work Clamp Positive Cable Connect work clamp positive weld inp...

Страница 19: ...g Current Control 3 Operation Mode Switch 4 Pilot And Trouble Lights 4 3 2 1 3 2 Cutting Current Control Ref ST 171 324 1 Cutting Current Control 2 Low Range Scale 18 to 50 Amperes 3 High Range Scale...

Страница 20: ...ace switch in applicable Gas Set position to adjust gas air pressure Only gas air is activated when the Power Circuit Breaker switch is turned On Place switch in the Cut position to cut or gouge 4 Air...

Страница 21: ...Circuit Breaker switch to turn unit and pilot light On and Off Power Circuit Breaker switch CB1 also protects the unit from overload If CB1 trips the unit shuts down If CB1 trips reduce welding power...

Страница 22: ...or Dryer Assembly See Section 4 5 Every Week Check Trigger Disabled System See Section 4 7 Drain Moisture From Filter Regulator Assembly See Section 4 5 3 Months Service Filter Regulator Assembly Filt...

Страница 23: ...Peel back vinyl coating covering capacitor terminals Connect bleeder resistor across terminals of one capacitor and wait for at least 10 seconds Repeat procedure for remaining ca pacitor 7 Output Capa...

Страница 24: ...input power Stop engine on welding generator 1 Pilot Fuse F1 See Parts List For Rating Pilot fuse protects unit from faults in pilot arc circuit If pilot fuse opens there will be no pilot or arc start...

Страница 25: ...and output stops 3 Gas Torch Light Lights if gas air pressure is low and stops plasma and pilot arcs Also lights if torch tip is not installed when trigger is pressed Check for proper gas air pressur...

Страница 26: ...Filter Regulator Assembly Drain Plug To drain moisture from filter regula tor assembly rotate drain plug counterclockwise Close drain plug after moisture is completely drained from filter regulator a...

Страница 27: ...ding power source and cutter and disconnect input power Stop engine on welding generator Remove top of case according to Section 4 2 1 Boot Insert torch hose and leads through boot 2 Gas Hose 3 Gas Co...

Страница 28: ...see Section 2 8 Check main fuse F1 and replace if needed see Section 4 3 Have Factory Authorized Service Agent check control board PC1 No cutting output Pilot light on trouble lights off fan motor run...

Страница 29: ...gher cutting capacity Check for dirty filter regulator and clean if needed see manufacturer s instructions supplied with unit Have Factory Authorized Service Agent check torch body Gas Torch light on...

Страница 30: ...OM 222 Page 26 SECTION 5 ELECTRICAL DIAGRAMS Figure 5 1 Circuit Diagram For Cutter SC 171 596 A...

Страница 31: ...ces Of High Frequency Radiation From Incorrect Installation 50 ft 15 m S 0754 Sources Of Direct High Frequency Radiation 1 High FrequencySource Plasma Arc Cutting Power Source 2 Cables 3 Torch 4 Work...

Страница 32: ...d 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 National Electrical Code...

Страница 33: ...OM 219 Page 29 Notes...

Страница 34: ...OM 219 Page 30 SECTION 7 PARTS LIST 1 2 3 4 5 Fig 7 2 35 36 37 38 39 40 41 42 43 44 45 46 47 Figure 7 1 Main Assembly...

Страница 35: ...OM 219 Page 31 ST 800 867 A 6 7 8 9 10 11 12 13 15 16 17 18 14 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34...

Страница 36: ...2 000 1 17 171 523 FITTING 90 deg street elb 1 4NPT 1 18 171 524 FITTING close nipple 1 4NPT 1 19 F1 171 469 FUSE non time delay 10A 1 20 171 468 FUSE HOLDER w 187 Faston connectors 1 21 171 467 HOLE...

Страница 37: ...PLATE circuit breaker shorting 1 47 VR1 171 328 VARISTOR 130V 20J 1 171 295 LEADS TERMINAL 6AWG red 1 171 297 BUSS WIRE circuit breaker to hex stud 1 When ordering a component originally displaying a...

Страница 38: ...OM 219 Page 34 ST 800 885 A 1 2 3 4 5 6 7 8 9 11 12 13 14 15 18 19 20 25 26 27 28 21 22 23 24 Includes Item 25 29 30 31 33 34 35 32 36 37 38 10 16 17 Figure 7 2 Center Baffle...

Страница 39: ...TUD 2 15 171 315 WASHER flat 1 4 500 x 281 4 171 312 BUSS WIRE output jack to hex stud 1 16 126 026 LABEL warning electric shock can kill 4 17 153 178 LABEL warning exploding parts can cause serious i...

Страница 40: ...OM 219 Page 36 ST 800 889 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Figure 7 3 Arc Starter Assembly...

Страница 41: ...acitor filters 1 7 171 490 THREADED ROD No 10 32 x 5 250 2 8 171 507 NUT No 10 32 hex 4 9 R5 171 501 SURGE RESISTOR 3 ohm 150W 1 10 R4 171 486 RESISTOR WW 30 ohm 60W 1 171 503 SCREW No 8 32 x 31 Phill...

Страница 42: ...CTURER LINCOLN ELECTRIC CO Material Thickness Welding Power Source Model 1 2 in 3 4 in 7 8 in INVERTEC V 300 PRO H IDEALARC R3R 300 H IDEALARC R3R 400 H IDEALARC R3R 500 H IDEALARC DC 600 H Engine Dri...

Страница 43: ...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 44: ...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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