Feeding Electrode; Proper Wire Feeding - Lincoln Electric WIRE-MATIC 255 SVM 119-A Service Manual

B-6
To mount a 10 to 44 lb. (4.5 to 20 kg) spools: 8"
(200mm) [Use K468 Adapter] and 12" (300mm)
diameter:
1. Remove the locking collar and the Readi-Reel
Adapter (if installed) on the 2 inch (51mm) diame-
ter spindle.
2. If using an 8" (200mm) spool, place the K468
Adapter on the spindle first.
Adapter arm is to engage the pin on the spindle.
3. Place the spool on the spindle, making certain the
brake driving pin enters one of the holes in the
back side of the spool. Be certain the wire comes
off the reel in a clockwise direction when dereeled
from the top of the coil.
4. Replace and tighten the locking collar for several
seconds.

FEEDING ELECTRODE

WARNING
When inching, the electrode and drive mechanism
are electrically hot to work and ground. The elec-
trode remains hot several seconds after the gun
trigger is released.
____________________________________
NOTE: Check that the proper drive rolls and gun parts
for the wire size and type are being used.
1. Turn the Readi-Reel or spool until the free end of
the electrode is accessible.
2. Tightly holding the electrode, cut off the bent end
and straighten the first six inches.
a. If the electrode is not properly straightened, it
may not feed properly into the outgoing guide
tube or welding gun causing a "birdnest.")
3. Cut off the first inch.
4. Push the wire through the ingoing guide tube.
OPERATION
5. Press the gun trigger and push the electrode into
the drive roll.
a. If the electrode fails to thread itself into the out-
•
•
The hole in the
•
6. Inch the electrode through the gun.
NOTE: If using the low speed starting feature, the wire
will feed at low speed for 2 seconds while inching, then
come up to the set speed. To change run-in mode, see
the Changing the Run In Mode Section .

PROPER WIRE FEEDING

Wire feeding problems can be avoided by observing
the following gun handling procedures:
• Do not kink or pull cable around sharp corners.
• Keep the electrode cable as straight as possible
when welding or loading electrode through cable.
• Do not allow dolly wheels or trucks to run over
cables.
• Keep cable clean by following maintenance
instructions.
• Use only clean, rust-free electrode. The Lincoln
electrodes have proper surface lubrication.
• Replace contact tip when the arc starts to become
unstable or the contact tip end is fused or
deformed.
WIRE-MATIC 255
going guide tube of the wire drive
open the quick release idle roll arm
thread the electrode manually
re-close the arm.
B-6