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I guess if it's up to the individual each guy could make his own decision. I wouldn't like being forced; the attitude of "This is how we do it, get on board or leave." Personally, I see using higher pressures as dangerous and damaging. My tools don't disappoint me at lower pressures in a...

A friend of mine is a full-time automotive tech and I asked him what line pressure has been used in some of the shops he's worked at. He said 150-175 PSI. I was appalled, I couldn't believe it. Is this common? I've heard wet air lines are common and shop owners/managers don't know how or...

Maybe you don't fully understand since amperage is what generates the heat, not voltage. Quite honestly, it doesn't matter what the output voltage of a given setting is. If 150 amps is needed for a proper weld that can be achieved at 20 volts or 1000 volts depending on the machine's circuitry...

If the old pump is the same as your newer one, the one I know I am familiar with, I believe you would be okay flipping the head. However, you MUST also flip the valve plate. The valve plate's orientation to the head cannot be changed. You will likely damage the gaskets upon removal, no way...

That pump on your compressor is made by DeVilbiss. It's the same pump that has been on most Craftsman compressors for at least 30 years. To my knowledge they've also been used on Porter-Cable and Speedaire compressors. I have three of them in my garage - Two are at least 25 years old. One I...

It doesn't surprise me. I have some cheap box store casters that are falling apart. I'm convinced that the casters sold in box stores are garbage - or at least are only suitable for limited applications which the product descriptions fail to elaborate on. After a little research and shopping...

An after cooler is a great way to go. You can make one from just about any automotive AC condenser. My compressor is set up with one from an old cadillac. Air goes in hot, comes out cool. No water issues at all even on the most humid of days.

Keep in mind that a more powerful motor will not create more air delivery without also increasing the drive pulley diameter to spin the pump faster. A good rule of thumb for what a given motor can deliver with the proper drive ratio is 3-4 cfm per hp. As for belt tension, v belts don't need to...

Thanks, md Finky, there is no hard and fast rule for breaker size on motor operated circuits. There is a section of the NEC that lays out guidelines and parameters for how much you can upsize a breaker for a given motor. Any additional local codes I cannot speak to. My municipality follows...

Md do you have sources for your values on startup current? They seem high to me so I'm curious. Locked rotor current, or startup current, is going to vary based on motor design. I have generally seen a 60 amp breaker recommended for 5 hp compressors and an 80 amp recommended for 7.5 hp. If...

Plenty of adjustment for a 138" blade on the Johnson

Smart thinking. No one should modify the structure of any pressure vessel - patching holes, moving/modifying bungs etc. In the the early 1900's many people were killed by exploding boilers and other pressure vessels due to a lack of engineering knowledge and data on good design for them. Even...

You are correct. I would want a hose good to at least 350 deg F. Look up Eaton aeroquip hose. I forgot where I ordered mine from but I am using that hose for a compressor discharge - it's one of the applications listed in the specs for this hose. It's extruded teflon with stainless steel...

If it has the coolant system and chip pan it will be heavier; mine doesn't have those. So I was only able to get one friend to commit to going to help pick it up (maybe I only have one good friend lol). That meant it was me a buddy and a 70-some year old man to load this thing by hand. I...

His point is that the tradesmen would need to change their habits of how they use the tool. Some battery technologies require a full discharge and a full recharge to maintain proper function.

Go for the model j now while you can even find one. See this thread about them http://www.garagejournal.com/forum/showthread.php?t=153859 If it runs now you can make it run great with a little tlc. The commonly damaged parts are reasonably priced I feel and you can always spread them out if...

Check out castercity.com. Stay away from common store bought casters. I've wasted my fair share of money on those before learning my lesson. There are literally dozens of options for wheel materials depending on your application. Caster city tech support will get you sorted out with the right one.

I have the set you're talking about and it's very nice. I paid somewhere between 60 and 80 from Amazon. As mentioned, Amazon prices fluctuate. You can find better prices elsewhere and without sales tax. I also have the metric counterpart to that set as well as the 3/8 and 1/4 drive master sets...

An oil-lubed compressor comparable to the one you have now is going to cost $500-$600. Don't get an oil-less one. Please. I also urge you to correct your draining intervals. I drain my tank at the end of every day and I would recommend everyone else do the same. There are even bolt one...

Thank you for the compliments! Probably about $1000. I bought it from an old farmer for $200 and more than half of the remainder was spent on replacement parts from Dake for ones that had been poorly repaired or damaged over the years. Still, with a new production Dake/Johnson saw coming in...