Replacing Air Compressor Pressure Switch - New Switch has Different Turn on/Turn off pressures

[inline6]

Yes.  For many of those years, it got little use.  I am unsure of how many times, but probably about 6.  I just changed it about a month ago before I started on a rather lengthy round of blasting all of the black parts for the car I am restoring.  I was shocked at the price of the compressor oil - nearly $12 for each 16 ounce bottle.  And it took 3 and half of these. 

https://www.homedepot.com/p/Husky-16-oz-Air-Compressor-Oil-HDA10700AV/100096995

Edited April 12, 2023 by inline6

[Yarb]

Chime in gents, I’ve been told that you use 30W Non detergent in compressors. Did the labeling on the Husky bottle list what the contents and viscosity?

[inline6]

From the product details of what I bought:

 

[SteveJ]

12 minutes ago, Yarb said:

Chime in gents, I’ve been told that you use 30W Non detergent in compressors. Did the labeling on the Husky bottle list what the contents and viscosity?

I looked at the Q&A on the oil Garrett used.

[Racer X]

Yep, 30wt non detergent motor oil. Getting harder to find these days, but it should cost quite a bit less than the stuff at the hardware store.

 

[Racer X]

13 hours ago, inline6 said:

Yes.  For many of those years, it got little use.  I am unsure of how many times, but probably about 6.  I just changed it about a month ago before I started on a rather lengthy round of blasting all of the black parts for the car I am restoring.  I was shocked at the price of the compressor oil - nearly $12 for each 16 ounce bottle.  And it took 3 and half of these. 

https://www.homedepot.com/p/Husky-16-oz-Air-Compressor-Oil-HDA10700AV/100096995

You’re an exception.

The air compressor is the most ignored tool in any shop. The only time most mechanics even think about the shop air compressor is when they need air, and there isn’t any.

Usually, at that point, it is too late.

 

Edited April 12, 2023 by Racer X

[zKars]

I believe the un-mentioned issue so far is moisture. Have you routinely drained the water from the bleed valve?

If you look at the tank you will like find a "Best before" date like on your milk. Compressed air cylinders have a safe working life limit as well. 27 years is likely stretching that a bit, but I think I have milk in the basement fridge that might be that old.....

[inline6]

2 hours ago, zKars said:

I believe the un-mentioned issue so far is moisture. Have you routinely drained the water from the bleed valve?

If you look at the tank you will like find a "Best before" date like on your milk. Compressed air cylinders have a safe working life limit as well. 27 years is likely stretching that a bit, but I think I have milk in the basement fridge that might be that old.....

I am not good at draining from the tank.  It's more of a pain to do than it should be, so I tend to ignore it.  I probably drain it about twice a year on average.  I need to do something to make it less of pain, maybe put a shallow pan underneath with an outlet in a good location.  Right now, where the compressor is located, when I open the drain valve, the water runs toward a wall in my shop and gets the base of the wall wet.

The lines are easy to drain.  I drain them frequently.  

Edited April 12, 2023 by inline6

[Patcon]

If your compressor is somewhere it wont freeze, they make auto drain devices for air compressors. I am also not diligent about draining my compressor but Im afraid to add an autodrain because mine is outside and it would likely freeze and crack

[Racer X]

3 hours ago, inline6 said:

I am not good at draining from the tank.  It's more of a pain to do than it should be, so I tend to ignore it.  I probably drain it about twice a year on average.  I need to do something to make it less of pain, maybe put a shallow pan underneath with an outlet in a good location.  Right now, where the compressor is located, when I open the drain valve, the water runs toward a wall in my shop and gets the base of the wall wet.

The lines are easy to drain.  I drain them frequently.  

I plumbed s small spigot from the bottom of my air tanks (I have 3) out to where they are easy to get to. I also made platforms for the tanks, so they are off the shop floor about 4”. 

[Patcon]

I plumbed a small ball valve off the bottom of my tank but I don't go out there enough and drain it

[inline6]

19 hours ago, SteveJ said:

I looked at the Q&A on the oil Garrett used.

Oh.  That is interesting. Thanks Steve.  Looks like I should investigate API CC SAE and ISO 100 - consult my compressor manual and may need to remove and replace the $44 dollars worth of oil I just put in recently.  I'll investigate.

Edited April 12, 2023 by inline6