Lincoln Electric SVM 119-A service manual Using the Wire Drive Roll, Figure B.2 Wire Reel Loading

B-5 OPERATION B-5

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USING THE WIRE DRIVE ROLL

The drive roll provided with the WIRE-MATIC 255 has two grooves, one for.030-.035" (0.8-0.9mm) solid steel electrode, and the other for .045" (1.2mm) solid steel electrode. The welder is shipped with the drive roll installed in the .030-.035" (0.8-0.9mm) position as indi- cated by the stenciling on the exposed side of the drive roll. If .045" (1.2mm) electrode is to be used or one of the optional drive rolls is required, then the drive roll must be reversed or changed per the following instruc- tions. This information also appears on the Procedure Decal on the door inside the wire compartment.

PROCEDURE FOR CHANGING DRIVE ROLL

Different wire sizes may require changing the drive roll. The applicable wire sizes are stamped on the drive roll. Dual groove rolls must be installed so the side with the proper wire size stamp faces out.

1.Turn POWER SWITCH to OFF.

2.Release the pressure on the idle roll by swinging the pressure arm off the idle roll arm.

3.Remove the wire from the drive system.

4.Remove the thumb screw from the drive roll.

5.Turn the drive roll over or change to another roll as required.

6.Replace the thumb screw.

7.Check that the gun liner and contact tip are prop- erly sized for wire being used.

MOULDED ADAPTER

RETAINING SPRING

WIRE DEREELING

DIRECTION

2" (51 mm)

O.D. SPINDLE LOCKING COLLAR

BRAKE TENSION

ADJUSTING SCREW

READI-REEL

INSIDE CAGE WIRES

FIGURE B.2 - Wire Reel Loading.

4.Set one of the Readi-Reel inside cage wires on the slot in the retaining spring tab.

5.Lower the Readi-Reel to depress the retaining spring and align the other inside cage wires with the grooves in the molded adapter.

6.Slide the cage all the way onto the adapter until the retaining spring "pops" up fully.

WARNING

Check to be sure the retaining spring has fully returned to the locking position and has securely locked the Readi-reel cage in place. Retaining spring must rest on the cage not the welding elec- trode.

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LOADING THE WIRE REEL

To mount a 22-30 lb. (10-14 kg) Readi-Reel package using the Readi-Reel adapter provided:

1.Remove the locking collar from the 2” (51mm) O.D. spindle and mount the K363P Adapter so the spin- dle pin engages the hole provided in the Adapter. Replace and tighten the locking collar.

2.Rotate the spindle and adapter so the retaining spring is at the 12 o'clock position.

3.Position the Readi-Reel so that it will rotate in a clockwise direction when wire is dereeled from the top of the coil. See Figure B.2.

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NOTE: The retaining spring side of the Adapter should be facing the center (inner) panel of the WIRE-MATIC 255.

7.To remove the Readi-Reel from Adapter, depress retaining spring tab with thumb while pulling the Readi-Reel cage from the molded adapter with both hands. Do not remove Adapter from spindle.

WIRE-MATIC 255