Lincoln LN-742 Welder User Manual


 
B-9
OPERATION
B-9
TO MOUNT 10 TO 44 lb (4.5 to 20 kg) SPOOLS
(12 in./300 mm DIAMETER) OR 13-14 lb (6 kg)
INNERSHIELD COILS:
The spindle should be located in the lower mounting
hole of the K1524-1 Universal Stand if used.
[For 8 in. (200 mm) spools, a K468 spindle adapter
must first be slipped onto the spindle.]
[For 13 to 14 lb (6 kg) Innershield coils, a K435 Coil
Adapter must be used.]
1. Depress the Release Bar on the Retaining Collar
and remove it from the spindle.
NOTE: Earlier
spindles used a threaded collar. See Figure B.5a or
B.5b.
2. Place the spool on the spindle, making certain
the spindle brake pin enters one of the holes in
the backside of the spool. Be certain the wire
comes off the reel in a direction so as to de-reel
from the bottom of the coil.
3. Re-install the Retaining Collar. Make sure that
the Release Bar pops up and that the collar
retainers fully engage the retaining groove on the
spindle.
ELECTRODE FEEDING AND BRAKE
ADJUSTMENT
1. Turn the Readi-Reel or spool until the free end of
the electrode is accessible.
2. While tightly holding the electrode, cut off the bent
end and straighten the first six inches. Cut off the
first inch. (If the electrode is not properly
straightened, it may not feed or may not go into
the outgoing guide tube, causing a birdnest.)
3. Insert the free end through the incoming guide
tube.
4. Press the cold inch key or gun trigger and push
the electrode into the drive roll.
ELECTRIC SHOCK
can kill.
Do not touch electrically live parts
such as output terminals or
internal wiring.
When inching with the gun
trigger, electrode and drive
mechanism are hot to work and
ground and could remain hot for
several seconds after the gun
trigger is released.
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5. Inch the electrode through the gun.
6. Adjust the brake tension with the thumbscrew on
the spindle hub until the reel turns freely but with
little or no overrun when wire feeding is stopped.
Do not overtighten.
LN-742 & LN-742H
WARNING