Lincoln 225 Amp AC welder (old one)

[Oldguy48]

Should the cooling fan start immediately when the power is switched on? It seems to take a few minutes before I can hear it running. The welder works fine, except for the 90 amp setting, which is dead. Thanks.

 

[Dr.JohnnyFever]

Yep.

The fan needs to run full time to achieve the rated duty cycle of the welder. Of course, they could have used a thermostat but it would have been unneeded expensive and complexity.

If you have been using it hard, don't kill the breaker to it right away. Let the fan run and cool it a while.

 

[zkling]

Depends, got a serial number?

 

[KEH]

Had one for years, bought new, fan turns on when switch is on. Bought a used AC-DC, fan made noise, went into it from the back and oiled the bearings, runs quiet now. Yours may need cleaning and oiling.

KEH

 

[motoretro]

If it's like my old 1960's floor fan, it starts really slow with no noise until the motor grease warms up enough to let her fly.
Motoretro

 

[Oldguy48]

Thanks for the replies...methinks I had better open it up and take a look at the fan. It's probably just like me. Old and tired!