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Hersteller: Hobart Welding Products Dateigröße: 1.1 mb Dateiname: o203653g_hob.pdf Unterrichtssprache:

Specifications For Torch Air-cooled torch for plasma arc cutting (PAC) 35% duty cycle Safety interlock devices shut down power source Safety trigger guard Cutting capacity: see Section 4-1 4-3. Duty Cycle And Overheating Duty Cycle is percentage of 10 minutes that unit can cut at rated load without overheating. If unit overheats, thermostat(s) opens, output stops, Temperature trouble light goes On, and cooling fan runs. Wait fifteen minutes for unit to cool or temperature light to go off. Reduce amperage or duty cycle before cutting or gouging. Exceeding duty cycle can damage unit and void warranty. Overheating sduty1 5/95 / 802 784 3-1/2 Minutes Cutting 6-1/2 Minutes Resting 35% duty cycle For Units Connected to a 115 Volt Circuit or a 230 Volt Circuit: 35% Duty Cycle At 27 amperes, 92 volts dc 0 15 Minutes A OR Reduce Duty Cycle OM-203 653 Page 11 4-4. Torch Dimensions And Weight 3.0 lb (1.4 kg) Ref. 802 877 1 in (25 mm) 8-3/8 in (213 mm) 1-3/8 in (35 mm) 16 in (406 mm) 4-5. Selecting A Location loc_2 3/96 - Ref. 802 784 / 802 785 / 802 786 / 203 892 1 Lifting Handle Use handle to lift unit. 2 Hand Cart Use cart or similar device to move unit. 3 120 VAC Receptacle 4 230 VAC Receptacle Locate unit near correct input power supply. Special installation may be required where gasoline or volatile liquids are present . see NEC Article 511 or CEC Section 20. 8-1/2 in (216 mm) 12-5/16 in* (313 mm) Movement 1 2 Location And Airflow Dimensions And Weight 49 lb (22.2 kg) not including torch 10 in (254 mm) 10 in (254 mm) 3 4 *Add 13/16 in (21 mm) for handle. Serial Number/Rating Label located on rear panel of plasma cutter; use label to determine input power for unit. OM-203 653 Page 12 4-6. Connecting Gas/Air Supply 802 787 / Ref. 801 319-C / Ref. 802 784 Use only clean, dry air with 70 to 150 psi (483 to 1034 kPa) pressure. 1 Gas/Air Inlet Opening 2 Hose 3 Teflon Tape Obtain hose with 1/4 NPT righthand thread fitting. Wrap threads with teflon tape (optional) or apply pipe sealant, and install fitting in opening. Route hose to gas/air supply. 4 Air Filter/Regulator Adjust gas/air pressure according to Section 5-1. Tools Needed: 5/8, 1-1/8 in 3 1 4 2 From Gas/Air Supply OM-203 653 Page 13 4-7. Connecting Work Clamp 802 463-A 1 Work Clamp 2 Workpiece Connect work clamp to a clean, paint-free location on workpiece, as close to cutting area as possible. 1 2 4-8. Connecting Input Power Ref. 802 787 / 802 786 Check input voltage available at site. 1 Changeover Switch Switch is accessible through slot in rear panel. 2 Changeover Switch Label Look at label to find correct switch position. Be sure input power connection meets all applicable national, regional, and local electrical codes. 3 Grounded 120 VAC Receptacle To use rated output (see specifications), connect the unit to an individual branch circuit capable of carrying the effective (eff) current for the output being used. The unit must have a properly sized plug installed and the circuit must be protected by properly sized fuses or circuit breakers. A 120 volt, 20 ampere individual branch circuit protected by time-delay fuses or circuit breaker is required (see Section 4-1). 4 Plug From Unit Select extension cord of 12 AWG for up to 53 ft (16 m). 5 Grounded 230 VAC Receptacle A 230 volt, 10 ampere individual branch circuit protected by time-delay fuses or circuit breaker is required (see Section 4-1). 6 Plug From Unit (Customer Supplied) Select extension cord of 14 AWG for up to 133 ft (41 m). Special installation may be required where gasoline or volatile liquids are present . see NEC Article 511 or CEC Section 20. 4 3 5 6 2 1 4-9. Installing Alternative Plug 1 Supplied 115 VAC Plug Cut cord close to plug. 2 Alternative PLug (230 VAC Plug Shown) 3 Load 1 (Brass) Terminal 4 Load 2 (Brass) Terminal 5 Ground (Green) Terminal 6 Outer Shell 7 Cord Grip Strip cord jacket back enough to separate conductors. Strip conductors enough to make good contact with plug terminals. Make plug connections and reinstall outer shell and cord grip. Tighten assembly screws onto shell. Do not overtighten. Ref. 801 305-A / 801 611 This procedure is necessary if the unit is to be connected to a 230 VAC receptacle, or to a 115 VAC receptacle that requires a plug that is different from the supplied plug. Tools Needed: 1 6 7 2 3 4 5 See Section 4-8 for instructions on setting changeover switch for proper voltage. OM-203 653 Page 14 OM-203 653 Page 15 SECTION 5 . OPERATION 5-1. Controls 1 4 2 3 5 ON OFF PRESSURE 60 PSI 5 6 24 27 6 Set To 60 PSI (414 kPa) 20 16 24 27 20 16 1 24 27 20 16 Requires 70-150 PSI (483-1034 kPa) Supply Setting Gas/Air Pressure 1 Output Control Use control to set cutting output. Place control in Gas/Air Set position to safely adjust gas/air pressure. Only gas/air circuit is activated. If 22-27 amperes of cutting output is used with 115 VAC input power, and the overload protection on the input power circuit frequently opens, either reduce the cutting output and/or t...

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