axle nut vs. breaker bar + worst repair nominations

[marc_scirocco at sympatico.ca (marc_scirocco)]

Remember one thing, if you set it at 90 psi out of the compressor does not
mean the gun will get 90 psi at the inlet.

It depends if you have small diameter hose, lots of hardware, quick
couplers, etc... 

Here is my setup. I have 1/2" copper lines from my compressor with no 90?
elbows, only 45?, going to two outlets with each a pressure regulator, and
they are always set higher than 90 psi for the big jobs. This way I have
close to 90 psi when I hit the trigger.

Cheers.

Marc
'83 Scirocco

> 
> You are completely correct.  We used to have the compressor 
> cranked way up in our old shop, but I'm sure that was 
> potentially dangerous.  Plus, those wrenches have probably 
> gotten more efficient.
> 
> That said, I'm sure 90psi is recommended by the manufacturer 
> to keep everybody out of trouble, but ask any mechanic and 
> he/she will tell you they use 120-180 psi to get more punch 
> out of their tools...
> 
> I just called my friend who runs a shop and he said his is set to 175
> 
> But I'm not recommending that....
> 
> >My $0.02, others on here have far more experience than me, but I've 
> >been doing this for a few years...
> >
> >I would NEVER put that much air to my wrench.  Most of them have a 
> >maximum inlet pressure of 90psi, anything more than that 
> causes damage 
> >and excessive wear to the tool.  If I had a $30 Harbor 
> Freight wrench I 
> >would do it but not with my $200 IR 2131A...
> >
>