Using The Wire Drive Roll; Procedure For Changing Drive Roll; Loading The Wire Reel - Lincoln Electric WIRE-MATIC 255 SVM 119-A Service Manual

B-5

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.

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.
OPERATION
2" (51 mm)
O.D. SPINDLE
LOCKING COLLAR
BRAKE TENSION
ADJUSTING SCREW
READI-REEL
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.
Check to be sure the retaining spring has fully
returned to the locking position and has securely
locked the Readi-reel cage in place.
spring must rest on the cage not the welding elec-
trode.
____________________________________
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
MOULDED ADAPTER
RETAINING SPRING
WIRE DEREELING
DIRECTION
INSIDE CAGE WIRES
WARNING
B-5
Retaining