Pencil grinders.

[Bradc1989]

I use my pencil grinder a lot at work. Mostly smaller carbide burrs to deburr smaller parts and cratex rubberized polishing wheels/points. I currently have a Chicago pneumatic grinder and it’s probably Around 8 years old. It’s showing some signs of wear like it has trouble taking it off unless I lube it at the beginning of every day And give it a little help on the initial use. What’s some other good options out there for these things? I’d say on average per week it might see a total of an hour and a half of use

 

[cvairwerks]

Your CP is probably in need of a teardown and cleaning. I would suspect you've been way over oiling it and the internals are getting pretty gummed up. They typically only need one or two minimal drops of oil every few hours of operation.

 

[DocsMachine]

A lot of air-tool oils can polymerize- they dry up and get gummy. AT oil is really meant for the constant oilers that inject oil into the line on a regular basis, and even that's meant for tools that are used pretty constantly.

One thing you might try is running some WD-40 through the thing, and several times, to try and soften and blow out any gum that might have built up.

Then lube it with a good quality synthetic oil.

Now, if that doesn't help, and it'll only run after lubing, the vanes may well be worn down and not sealing well, or the bearings getting a bit loose. If that's the case, it's rebuild time.

Doc.

 

[Jswain]

Wd-40 might help as mentioned and it could take a few cycles. Spray in the air fitting with it upright and the trigger depressed, hook up air, run it, repeat let it soak in for a bit, hook up air, run it etc.

Don't use brake cleaner or similar as it can/will ruin some style trigger seats/internal seals.

Nothing will work as well as dismantling & cleaning, but always worth trying the wd40 first. I believe PB blaster or someone makes an air tool restore spray as well