A couple weeks ago when the temperature was about 25 Farenheit, I
kicked on my ARB lockers. After I finished up off-road, I unlocked
the differential, but forgot to turn off the power to the compressor.

I got onto the freeway, differential still unlocked, and about 15
minutes later I heard a large amount of rushing air escape from the
system somewhere. Immediately the compressor, sensing a loss of
pressure, kicked on and ran, but it must have just been pumping air
out into the open because it ran and ran without stop.

It took me 5-10 minutes to get to a safe stopping place and by that
time the compressor was totally dead, burned out I suppose from
running constantly for that length of time. (I hadn't yet installed
an on/off switch to the compressor in the cab. I only have a locker
switch. To turn the compressor on and off I have to open the hood,
which is why I forgot to do it.)

Anyway, I now have a non-functional locker and an apparently burned
out compressor.

My questions are:

1) What is the most likely failure point given what I know? The air
line or the differential itself? Any suggestions on how to find the
break and repair it?

2) What was the likely cause of the break? Is it risky to use
compressed air in low temperatures?

3) Does the ARB compressor have an internal fuse which could be
replaced... or is it likely just completely burned out and dead at
this point?

 

If you ran the compressor without a fuse or breaker, until it stopped, it is
dead. Buy a new one.
REAL ARB fans should have a complete extra system for parts. They do seem to
fail a lot, but only if you use them.

--
Paul Calman, Hathaway Pines, California

 

If you ran the compressor without a fuse or breaker, until it stopped, it is
dead. Buy a new one.
REAL ARB fans should have a complete extra system for parts. They do seem to
fail a lot, but only if you use them.

--
Paul Calman, Hathaway Pines, California

 

If you ran the compressor without a fuse or breaker, until it stopped, it is
dead. Buy a new one.
REAL ARB fans should have a complete extra system for parts. They do seem to
fail a lot, but only if you use them.

--
Paul Calman, Hathaway Pines, California

 

If you ran the compressor without a fuse or breaker, until it stopped, it is
dead. Buy a new one.
REAL ARB fans should have a complete extra system for parts. They do seem to
fail a lot, but only if you use them.

--
Paul Calman, Hathaway Pines, California