Weller DS500 Power Desoldering Station < POWERS UP - Untested

Description

sadly from yet another closed audio repair shop.   I plugged in and it powers up, no further testing done.
I see what looks like a foot pedal?   also an air line?  some solder splatter on front.  also use zoom ... a hole in the meter plastic glass , melted.
again unit is untested , may need repairs...   needs cleaned up to start.   not sure where to connect the air line to?   as-is, as found, final sale.
thanks.
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