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9.0 WELDING WITH SPOOL-GUN
Before installing any welding wire into the unit, the proper sized groove must be placed into position on the wire drive mechanism.
Adjust the drive roller according to the following steps:
1.
Open the Wire Drive cover on the Spool Gun.
2.
Remove the drive tension by loosening the tension adjusting screw and lifting the Drive Tension Adjustor up, away from the Drive Tension Arm.
Pull the drive tension arm away from the drive roller.
3.
Rotate the Drive Roller Cap counterclock-wise and remove it from the Drive Roller. Pull the Drive Roller off of the Drive Roller Shaft .Note:
The drive roller has two wire size (0,8 – 1,00) grooves built into it.
4.
Find the side of the drive roller that is stamped with the same wire diameter as that of the wire being installed. Push the drive roller onto
the drive roller shaft, with the side stamped with the desired wire diameter facing you.
5.
Reinstall the Drive Roller Cap and lock in place by turning it clockwise.
6.
Remove the nozzle and contact tip from the end of the gun assembly.
7.
Open the Wire Spool Casing, located at the rear of the Spool Gun, by turning the retaining knob counterclockwise.
8.
Unwrap the spool of wire and then fi nd the end of the wire.
9.
After checking to make sure that your welder is disconnected from the ac power source, free the leading end of the wire from the spool, but
do not let go of it until told to do so, or the wire will unspool itself.
10.
Using a pair of pliers, cut off the bent portion at the end of the wire so that you are left with a straight section of wire.
11.
Unroll about 15 cm of welding wire from the wire spool.
12.
Insert the leading end of the wire into the inlet guide tube (located in the Wire Spool Casing). Then push it across the drive roller and into
the gun assembly about 15 cm.
13.
Line the wire up in the top groove of the drive roller, then push the drive tension arm against the drive roller.
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. 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 Tensioner 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 (and continue turning it
while adjusting the tension on the spool).
b) With your free hand, tighten (turn clock-wise) 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" 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 and dial to the desired setting.
Drive Brake
Adjustment
Knob
Drive
Brake
20
retaining
knob
Wire
Spool
Casing
Wire
Spool
Wire Drive Cover
right way
wrong way
Drive Roller Cap
drive tension arm
tension adjusting screw
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