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14. Flip the quick release drive tensioner back into position on the drive tensioner arm.
15. Tighten (turn clockwise) the drive tension adjusting knob until the tension roller is applying
enough force on the wire to prevent it from slipping out of the drive assembly.
16. Let go of the wire.
17. Place the spool on the spindle in such a manner that when the wire comes off the spool, it
will look like the top illustration in Figure 10 on page 14. The welding wire should always
come off the top of the spool into the drive mechanism. Technical Note: The purpose of the
drive brake is to cause the spool of wire to stop turning at nearly the same moment that wire
feeding stops.
18. Set the Drive Brake tension. Note: It is necessary to release the Drive Tensioner Arm while you
are setting the Drive Brake Tension. Make sure you return the Drive Tension Arm to its locked
position after adjusting the Drive Brake Tension.
a) With one hand, turn the wire spool counterclockwise. This will cause the wire to feed
through the gun assembly continue turning it while adjusting the tension on the spool.
b) With your free hand, tighten (turn clockwise) the drive brake adjustment knob.
c) Stop tightening when drag is felt on the wire spool that you are turning. Then stop hand-
turning the wire spool. Note: If TOO MUCH tension is applied to the wire spool, the
wire will slip on the drive roller or will not be able to feed at all. If TOO LITTLE tension is
applied, the spool of wire will want to unspool itself. Readjust the drive brake tension as
necessary to correct for either problem.
19. Trim the wire which is sticking out the end of the spool gun to about 1/2" in length.
20. Select a contact tip stamped with the same diameter as the wire being used.
21. Slide the contact tip over the wire protruding from the end of the gun.Thread the contact tip
into the end of the gun and hand-tighten securely.
22. Install the nozzle on the gun assembly. For best results, coat the inside of the nozzle with anti-
stick spray or gel.
23. Cut off the excess wire that extends past the end of the nozzle.
24. Replace the wire spool casing cover and tighten adjustment knob by turning it clockwise.
25. Connect the welder power cord to the AC power source. Turn the welder ON. Set the VOLTAGE switch.
Setting the Wire Drive Tension
WARNING: Arc flash can injure eyes! To reduce the risk of arc flash, make certain
that the wire coming out of the end of the gun does not come in contact with the work
piece, ground clamp or any grounded material during the drive tension setting
process or arcing will occur.
1. Open the wire drive cover on the spool gun
2. Pull the trigger on the gun.
3. Turn the drive tension adjustment knob clockwise, increasing the drive tension until the wire
seems to feed smoothly without slipping.
4. Close the wire drive cover on the spool gun.
5. When set correctly, there should be no slippage between the wire and the drive roller under
normal conditions.
Adjusting the Spool Position
Before you begin welding, you may want to adjust the position of the spool so it is most
comfortable for you. There are three positions to choose from. To change the position of the spool:
1. With a flat tipped screwdriver, loosen the screw which connects the spool casing to the gun.
2. Pull the casing far enough away from the gun to allow the casing to rotate.
3. Rotate the casing to one of the three available positions, making sure that the grooves on the
gun are aligned with the grooves on the casing.
4. Push the casing and the gun back together.
5. With a flat tipped screwdriver, tighten the screw which connects the spool casing to the gun.
15
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