Die grinder corrosion?

[4x4mike]

I've got a die grinder I use as a cut off wheel. It's not my only die grinder/cutoff wheel so it doesn't get used a lot. I went to use it the other day and had a few questions as a result. First thing I did was squirt a little oil down the air intake, plugged in some air and squeezed the trigger. All I got was a gushing sound and no movement. I've had this before in other tools so I spun the wheel by hand one revolution. After that I squeezed the trigger and it worked fine. After my cutting job I unplugged the air and spun the wheel by hand a couple of times. It moved fine but felt rough. As in moved fine I'd say it has the same resistance it did when it was new but it felt a little notchy (rough). I run an inline filter between the tank and the tool to **** out the water and I lube my tools everytime I use them.

I assume I can take the thing apart but I don't really want to. The thing works fine but I don't know if it's going to take a dump on me. What happens when water gets in the tool? Does it just corrode things? If so what things? What if I just start using it more often? Will it smooth out?
It sat unused for about a month which is not uncommon for my tools but this is the first one I've had problems with. TIA.

 

[Uncle Buck]

It can get the bearings or anything made of steel, at least I recall having to rebuild a jitterbug sander for the same reason. I got in the habit of giving them a squirt of oil and crackin the throttle for an instant or two to spread it around just before disconnecting the tool.

 

[rsanter]

sounds like the vanes are sticking a bit.
this can be a problem with air toold that sit a bunch

bob

 

[Elroy]

sounds like the vanes are sticking a bit.
this can be a problem with air toold that sit a bunch

bob

Bingo, Give that man a cigar, On target, Correct-a-mundo, ***** slap Elroy , Hit the Nail on the Head, Bulls eye, Exactly.

 

[goodfellow]

I've loosened up stuck vanes by squirting some warm transmission fluid into the air inlet, then manually spinning the motor to distribute the oil a bit and letting sit for a while.

After a few minutes, the vanes start to loosen and will begin to slip back and forth in their slots again.

 

[daveblank]

The PB Blaster Air Tool Conditioner works good to free stuck vanes.

 

[bushhawg73]

My vanes have gotten stuck before but never my air tool's vanes.

 

[4x4mike]

Thanks for the input guys. I'll try to lube it up and see where it goes.

 

[Vinko]

Slightly off-topic, but we've got a problem that just developed in the last few days -- or at least we just noticed it in the past few days -- with water from the compressor clogging our lines. We've been using our die grinders constantly for about 16 hours a day for several weeks.

In addition to fixing the problem, one of the guys mentioned something about an attachment somewhere along the line where oil gets squirted into the line so that die grinders don't need to be oiled themselves. I thought it sounded odd, but since I'm largely ignorant of these matters, what do I know?

 

[goodfellow]

If you have a lot of water in your line, the last thing you want is an inline oiler of any kind on the hard line. The combination of water and oil will quickly create sludge which will clog connectors, corrode seals, and cause a general nuisance.

The best solution for continuous duty air tool usage is to put an oiler at the end of a hard line drop; preferably after the filter. That way you oil only the specific air hose and the tool. Hoses are easy to replace when they get fouled with oil, hard lines are a pain to clean.

 

[Vinko]

If you have a lot of water in your line, the last thing you want is an inline oiler of any kind on the hard line. The combination of water and oil will quickly create sludge which will clog connectors, corrode seals, and cause a general nuisance.

The best solution for continuous duty air tool usage is to put an oiler at the end of a hard line drop; preferably after the filter. That way you oil only the specific air hose and the tool. Hoses are easy to replace when they get fouled with oil, hard lines are a pain to clean.

Thanks. I did that on all four lines. I also replaced two hoses. One with an Amflo and the other with a Rigid. The last two on the shelf at HD!