laser3kw
Well-known member
I can't help myself. It seems I have a compulsion to "tune up" everything I have. You know what I am talking about. We all know manufactured stuff isn't perfect. And if you have ever raced, you know that everything needs "blueprinting".
Of course, this applies to anything you buy at Harbor Freight or whatever you buy of Craig's list.
I found a air compressor on CL, 30 gallon upright, 5hp pump. It is a 1980 vintage Hartford (Sanborn family). The guy was pretty straight up and told me everything he knew. When he plugged it in, it kind of went "blah". didn't spool up quick. He was surprised and said it never did that before. We agreed on a price -$100 - with the caveat "it is what it is" / 30 ft or 30 second warranty.
Ok - so I get it home and proceeded to "tune it up". Pulled the shrouds, found a loose belt. And a suspiciously small drive pulley. Found the manual online and Yup! wrong pulley. Ordered the correct one and the correct belt.
Took apart the "dryer plug", found they had connected the green to the l2 lug and the white to the ground screw. Threw away the plug and installed the correct L6-20p plug and rewired motor and plug correctly. I also added a switch, Levatron dpdt 240v 30 amp as a shutoff. It breaks both sides of the line for total isolation.
swich link
The I disassembled the air outlet and re-plumbed with 3/8" brass - which I spun every ******, bushing and adapter on my lathe to chamfer all the in / out transitions to remove all sharp edges in the air stream.
Plugged it in, fired up, smooth and quite. Takes 30 seconds to pump up from cut in to top cut out.
So what say you? do you have to clean,shine, paint, trim, modify, add to....
whatever comes into your scope?
Of course, this applies to anything you buy at Harbor Freight or whatever you buy of Craig's list.
I found a air compressor on CL, 30 gallon upright, 5hp pump. It is a 1980 vintage Hartford (Sanborn family). The guy was pretty straight up and told me everything he knew. When he plugged it in, it kind of went "blah". didn't spool up quick. He was surprised and said it never did that before. We agreed on a price -$100 - with the caveat "it is what it is" / 30 ft or 30 second warranty.
Ok - so I get it home and proceeded to "tune it up". Pulled the shrouds, found a loose belt. And a suspiciously small drive pulley. Found the manual online and Yup! wrong pulley. Ordered the correct one and the correct belt.
Took apart the "dryer plug", found they had connected the green to the l2 lug and the white to the ground screw. Threw away the plug and installed the correct L6-20p plug and rewired motor and plug correctly. I also added a switch, Levatron dpdt 240v 30 amp as a shutoff. It breaks both sides of the line for total isolation.
swich link
The I disassembled the air outlet and re-plumbed with 3/8" brass - which I spun every ******, bushing and adapter on my lathe to chamfer all the in / out transitions to remove all sharp edges in the air stream.
Plugged it in, fired up, smooth and quite. Takes 30 seconds to pump up from cut in to top cut out.
So what say you? do you have to clean,shine, paint, trim, modify, add to....
whatever comes into your scope?
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