From: Snag_one@msn.com   
      
   On 7/4/2024 2:41 PM, Bob La Londe wrote:   
   > I'm sure you are all tired of the saga of the built to "a" spec Ingersol   
   > Rand compressor from Craptor Supply.  The one that killed its own motor   
   > in a year.  The one others have reported catching on fire.  The one I've   
   > concluded only worked as long as it did because the thermal protector   
   > had to be defective or disabled in the original motor.  (Which is   
   > probably why some caught on fire.)  The one that tripped the thermal   
   > constantly on one replacement motor, and the breaker and/or thermal on   
   > the other.  The one I've been keeping running with an under sized motor   
   > pulley.  Never mind the debacle with the after market warranty company,   
   > or the repair shop who reported the repair complete without ever   
   > visiting my shop.  Even with a much smaller pulley it still trips the   
   > thermal protector from time to time.  Mostly because I think it has to   
   > run longer when it cycles on with the smaller pulley, and when I have   
   > several machines running, all of which use air for various things, it   
   > has to cycle on more often.   
   >   
   > Mostly I can get by for now.  In the last few months I've only had the   
   > thermal trip on me 4-5 times and I run the shop every day.  Still   
   > sometimes I run complex operations which can be several hundred lines of   
   > code on a single tool.  This gives me the opportunity to run an errand   
   > or go in the house for lunch.  It would cost me more than the cost of a   
   > compressor if an ISO20 quick change spindle air seal fails and sucks   
   > coolant up inside the head as it cools down.  Okay the odds of that are   
   > slim, but it keeps me up at night anyway.   
   >   
   > I had decided to bring my dad's compressor to my shop and keep the IR as   
   > just a backup.  They are functionally similar except the IR has a 5HP   
   > motor and the one at my dad's shop has a 7.5.    Well, that is still the   
   > plan, but those compressors are heavy and I don't have anything out at   
   > my dad's shop (60 miles away) to practically lift his compressor to load   
   > it into my truck or even onto my low trailer.  Oh, I am sure there is a   
   > chain fall out there, and there is an old a-frame laying out back, but   
   > his shop is a quonset hut.  No beams. The a-frame will eventually get   
   > moved to my shop, but its freaking heavy.  I don't even think I can   
   > stand it up without the help of a lift.  I know I used it in my youth to   
   > pull more than a couple V-8 engines.  Scooting it on concrete when its   
   > on its pads takes a little effort unloaded, and with a big block 360   
   > hanging from it a bit more effort.  Standing it up in the dirt and   
   > dragging it around... Anyway.  It will get done eventually, but not   
   > today or tomorrow.  When I do I'll probably trailer my tractor out there   
   > to do the job with its loader bucket.   
   >   
   > I just ordered a 7.5 HP compressor duty motor for the IR.  IR actually   
   > sells a very similar compressor with a 7.5 HP motor on it at about 3.5   
   > times the price of this one.  Then, since I already know all the parts,   
   > I ordered a new hub for the original pulley to fit the 1-1/8 shaft on   
   > the new motor.   
   >   
   > I quit screwing around with those 5HP motors.  Now I have not one, but   
   > two unused single phase 230V "5HP" spare motors.  Maybe I'll make a   
   > couple big belt grinders for erasing the bumpy spots on mountains.  If I   
   > make a belt grinder or three, which is part of my planned projects, I   
   > plan to use 3 phase motors for speed control, so not really with those   
   > 5s.  I guess I could build a sheave stack, but turning a knob is so much   
   > easier than moving a belt.  FYI:  I do have three belt grinders already.   
   >   a 1x30 and a 1x42 that I use almost everyday for conditioning and   
   > de-burring parts.  The third one is on a shelf...   
   >   
   >   
   >   
      
      More power ! Hurrr hurr hurrr . That bigger motor is going to run   
   cooler and probably use less power than the 5 . I've got a 7.5 Hp OHV   
   motor here to replace the 5 Hp side valve on my tiller when it finishes   
   dying . I thought it had seized but it started right up the next day .   
   --   
   Snag   
     White lives matter too .   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)