Lincoln Electric IM831, 11079 manual Instructions, Additional Safety Precautions, Welder Operation

A-5 INSTALLATION A-5

CONNECTION OF THE LN-25 TO THE RANGER 3

PHASE

•Shut the welder off.

•Connect the electrode cable from the LN-25 to the“ELECTRODE” terminal of the welder. Connect the work cable to the “TO WORK” termi- nal of the welder.

•Position the welder “Polarity” switch to the desired polarity, either DC (-) or DC (+).

•Position the “RANGE” switch to the “WIRE FEED” position.

•Attach the single lead from the LN-25 control box to the work using the spring clip on the end of the lead - it carries no welding current.

•Place the engine switch in the “AUTO” position.

•Adjust wire feed speed at the LN-25 and adjust the welding voltage with the output “CONTROL” at the welder.

NOTE: The welding electrode is energized at all times, unless an LN-25 with built-in contactor is used. If the output “CONTROL” is set below “3”, the LN-25 contactor may not pull in.

CONNECTION OF K930-2 TIG MODULE TO THE RANGER 3 PHASE.

The TIG Module is an accessory that provides high frequency and shielding gas control for AC and DC GTAW (TIG) welding. See IM528 supplied with the TIG Module for installation instructions.

Note: The TIG Module does not require the use of a high frequency bypass capacitor. However, if the RANGER 3 PHASE is used with any other high fre- quency equipment, the bypass capacitor must be installed, order kit T12246.

INSTRUCTIONS

ADDITIONAL SAFETY PRECAUTIONS

Always operate the welder with the roof and case sides in place as this provides maximum protection from moving parts and assures proper cooling air flow.

Read and understand all Safety Precautions before operating this machine. Always follow these and any other safety procedures included in this manual and in the Engine Owner’s Manual.

WELDER OPERATION

WELDER OUTPUT

•Maximum Open Circuit Voltage at 3700 RPM is 80 Volts RMS.

•Duty Cycle is the percentage of time the load is being applied in a 10 minute period. For example, a 60% duty cycle represents 6 minutes of load and 4 minutes of no load in a 10 minute period. Duty Cycle for the RANGER 3 PHASE is 100%.

RANGER 3 PHASE

Constant Current 225 Amps AC @ 25 Volts 210 Amps DC @ 25 Volts

Constant Voltage 200 Amps DC @ 20 Volts

AUXILIARY POWER

CAUTION

Do not connect any plugs that connect to the power receptacles in parallel.

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Start the engine and set the “IDLER” control switch to the “High Idle” mode. Set the “CONTROL” to 10. Voltage is now correct at the receptacles for auxiliary power. This must be done before a tripped GFCI receptacle can be reset properly. See the MAINTE- NANCE section for more detailed information on test- ing and resetting the GFCI receptacle.

The RANGER 3 PHASE can provide both three phase and single phase power, up to 11,500 watts of 480 volts AC, three phase 60Hz power for peak use, and up to 10,500 watts of 480 volts AC, three phase 60Hz power for continuous use, up to 10,500 watts of 120/240 volts AC, single phase 60Hz power for peak use, and up to 9,500 watts of 120/240 volt AC, single phase 60Hz power for continuous use. The front of the machine includes four receptacles for connecting the AC power plugs; one 20 amp 480 volt 3 phase NEMA receptacle, one 50 amp 120/240 volt NEMA 14-50R receptacle and two 20 amp 120 volt NEMA 5- 20R receptacles. Output voltage is within +/-10% at all loads up to rated capacity. Do not use 3 phase power and single phase power simultaneously.

120/240 VOLT DUAL VOLTAGE RECEPTACLE

The 120/240 volt receptacle can supply up to 40 amps of 240 volt power to a two wire circuit, up to 40 amps of 120 volts power from each side of a three wire cir- cuit (up to 80 amps total). Do not connect the 120 volt circuits in parallel. Current sensing for the automatic idle feature is only in one leg of the three wire circuit as shown in the following column.

RANGER 3 PHASE