Lincoln Electric SVM 117-A service manual Machine Capability, Limitations, Wire Feeder Features

Models: SVM 117-A

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B-3

OPERATION

B-3

 

 

WIRE FEEDER FEATURES:

MACHINE CAPABILITY

 

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Drop-in Wire Loading - The innovative spindle snaps into the Readi-Reel adapter (optional) or most any 2" (51mm) I.D. wire spool. The wire spindle drops into the top-loading WIRE-MATIC 250 case design. Accommodating standard 12" (305mm) and 8" (203mm) diameter coils, the unique spindle and sup- port design automatically provides appropriate de-reel- ing drag to prevent wire reel overrun and loop-offs without manual brake adjustment.

Tachometer Controlled Wire Drive - Precision con- trol of permanent magnet motor provides proper wire feed acceleration and speed accuracy, independent of fluctuations in line voltage and wire loading. This gives reliable arc starting and weld consistency.

Low Speed Start - When the trigger is pulled, the wire feeder feeds wire at low speed regardless of the set wire feed speed until welding current is drawn or 2 sec- onds has expired. This feature enhances starting and makes setting stickout easy. The 2 second limit per- mits high speed loading of the gun and cable. In later versions of the WIRE-MATIC 250, a user selectable feature allows the wire feeder to feed wire directly at the set speed, thus bypassing the 2 second slow start.

Solid State Overload Protection - No circuit breaker to reset. Simply pull the trigger to resume welding once the overload condition has been cleared.

Unique Drive Roll and Guide Tube Design - Precisely aligned guide tubes and drive rolls provide long life. The design also permits quick reload by sim- ply starting wire into ingoing guide tube. Adjustable tension setting minimizes 'birdnesting', eliminates milling through the wire, and gives positive feeding. The double groove, reversible drive roll included with the WIRE-MATIC 250 allows use of .030" (0.8mm) through .045" (1.2mm) diameter wire. Drive roll kits for other sizes and types of wire are also available.

Quick-Connect Welding Gun - Gun connector has integrated welding power and gas connection with sep- arate front-paneltwist-lock trigger connection mount.

Gun and Cable - A 12 ft. (3.6m) GMAW gun and cable assembly, rated 200 amps 60% duty, or 250 amps 35% duty, is provided with the WIRE-MATIC 250. A liner, diffuser and contact tips for .035" (0.9mm) and .045" (1.2mm) electrodes are included.

The WIRE-MATIC 250 is rated on the following duty cycles based on a 10-minute time period (i.e., for 60% duty cycle, it is 6 minutes on and 4 minutes off).

Duty Cycle

Amps.

Volts

 

 

 

100%

145

26

60%

200

28

35%

250

26

 

 

 

LIMITATIONS

The WIRE-MATIC 250 may not operate satisfactorily if powered with a portable or in-plant generating system.

WIRE-MATIC 250

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Lincoln Electric SVM 117-A service manual Machine Capability, Limitations, Wire Feeder Features, Duty Cycle Amps Volts