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I want to know how to hook up a miller trailblazer 302, to mig weld aluminum, i havent got a clue how to do it, i cant get the gun to feed the wire

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Please see this page CLICK HERE If the gun won't feed the wire - the problem lies within the control box (onboard relay) What components are you using on the trailblazer? Thanks!

Posted on May 11, 2010

  • blueextc3221
    blueextc3221 May 11, 2010

    With a serial number, you can download the manual for the trailblazer HERE

    First link given broken SEE IT HERE

  • blueextc3221
    blueextc3221 May 11, 2010

    You can also find the manual for the Al gun you are using. Connectivity will be explained there too.



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1 Answer

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I suposse that you are using a wire briefcase (?), if so there is only one lead from the wire feeder to connect to the engine drive, that one goes to (+) stinger side and the briefcase has one volt sensing clamp, this one goes to your metal piece as same with the ground cable from the engine drive. If still you don't have a spark using the wire feeder but you do with the engine drive (stick welding) then your problem is your gun.

Email back if need more troubleshooting.

If this was useful to you please vote, thanks.

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I have a 50A spoolgun and wc-24 controll box, but i cain't adjust the heat, and it is way to hot, any ideas as to what the problem may be. it worked fine one day and the next day it was too hot and...

The control box for the spool gun it's just an adapter to feed the right voltage to the wire feed motor, the heat (voltage) must be adjusted from the three knobs:
1) Process Contactor knob must be dial on wire feeder CV using remote.
2) Polarity Must be set on DC
3) Voltage, depends on thickness of your work piece and wire gage, but 20 volts must be enough for up to 1/4" thickness and 035 4043 aluminum.

I never heard of a 50A spool gun, probably you meant 30A.

If your voltage it's erratic check the following:

Clean and tighten connections both inside and outside unit.

Check and secure lead connections to remote control.

Be sure connection to work piece is clean and tight.
Remove excessive coils from weld cables.

If continues to be too high (hot) and can't control it, then you should send your machine to be checked that's probably a problem with the PC1 or PC2.

If this was useful to you please vote. Thank you and good luck.

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