ESAB MIGMASTER 250 Bedienerhandbuch PDF herunterladen (Seite 25)

SECTION 3 INSTALLATION

3.8 WIRE FEEDER MECHANISM

3.8.1 DRIVE ROLLS

The drive roll has two grooves: the small groove feeds 0.035 in. diameter wire,

the large groove feeds 0.045 in. wire. The groove nearest the gear motor feeds

the wire. If the required groove is not in that position:

A. Release the drive roll pressure adjustment lever and lift the upper

drive roll assembly arm upward.

B. Remove the drive roll guard retaining screw and remove the guard.

C. Remove the two (2) screws holding the lower drive rolls to the gear.

D. Reverse the drive roll on the drive roll shaft.

E. Replace the drive roll retaining screws and tighten.

F. Lower the upper drive roll assmebly and secure the drive roll pressure

lever. Adjust pressure as required - DO NOT OVER TIGHTEN.

G. Replace the drive roll guard and tighten the retaining screw.

Drive Roll

Retaining Screws

Drive Roll Pressure

Adjustment Lever

Upper Drive Roll

Assembly Arm

Drive Roll Gaurd

Gaurd Retaining Screw

3.8.2 THREADING WELDING WIRE

A. Turn off power switch.

B. Release upper drive roll pressure assembly and lift upward. Check that

proper wire diameter groove is in the inner position.

CAUTION: Before threading welding wire through casing, make sure chisel

point and burrs have been removed from wire end to prevent wire

from jamming in gun casing or liner.

Figure 3.12 Wire Drive Stand

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ESAB MIGMASTER 250 Bedienerhandbuch Seite 25