MG 725 maintenece question

[VegaS10]

I have a roughly 5 month old Snap-ON MG725. Love the gun, couldn't be happier. At school, we have driers in the air compressor lines to keep moisture out. However, at home, I don't.

What is the correct method to oil, what oil should I use, and where would should I put it?

Sorry for a noobish question, but not everyone knows everything.

Thanks in advance.

 

[G1GRANDEUR]

get SO air tool oil and 2-3 drops on the fitting? you never oil your gun??

btw, nice EG.

 

[nate379]

I just put a drop or 3 of oil in the inlet whenever I happen to think of it. Air tool oil.

 

[MrMark]

Shouldn't you put a few drops in after you use it (before storing it away) and give it a quick burst?

Is putting in the oil after using it more important than putting it in before?

How bad is it to use air tools without a drier in your compressor line for the home occasional use home mechanic?

 

[G1GRANDEUR]

you can always crack open drain valve little bit when using it. Also you can put oil before putting away, but not necessary.

you can install small drier on the line for around $100. better than nothing.

 

[caper]

Too much oil is worse than not enough.I oil mine once a year,professional use.I've been using the same Mac AW434 impact for about 15 yrs now,no issues.I have friends who oil theirs regularly and end up replacing them after a couple years.I can't remember the last time I had to replace an air tool besides my Snap on air ratchet and that was because the head blew up tightening about 40 3/4" bolts in a turret one day.Not an oil issue,a 3/8" air ratchet just isn't made for that kind of abuse.

 

[krusty the clown]

Shouldn't you put a few drops in after you use it (before storing it away) and give it a quick burst?

Is putting in the oil after using it more important than putting it in before?

it's far more important to oil it...........before or after. i prefer before so my air tool drawer isn't slimey.

 

[MrMark]

it's far more important to oil it...........before or after. i prefer before so my air tool drawer isn't slimey.

OK, so just make sure you oil it is all. I always do this. What about the drier on the compressor? Is this necessary? I want to make sure I don't get internal rust. I am not using ChiCom stuff here.

 

[krusty the clown]

OK, so just make sure you oil it is all. I always do this. What about the drier on the compressor? Is this necessary? I want to make sure I don't get internal rust. I am not using ChiCom stuff here.

i don't think it's necessary but it is a good idea. i don't have a drier on my set up but i want one. one little drop of water will screw up a paint job and cause problems with plasma cutting, but not a major problem for most air tools (as long as you are oiling them).

 

[Art From De Leon]

I use the IM6 air tool oil in all my air tools after every use, I put about an ounce by disconnecting the hose, holding the trigger open and squirting the oil into the whip hose, then hook it back up, give it the air, and when it fogs out, wipe it off and put it up.

Why would over oiling cause problems?

 

[LGMechanical]

I just put in a couple drops of SO air tool oil before I use my MG725. I have had it since Jan 2009. No issues. Best 1/2" impact in the world.

 

[caper]

Everytime I've fixed an airtool it was usually just in need of cleaning all the crud out that the oil had caked inside the tool.Amazing what spraying a can of brakekleen through a lazy air tool will do for performance.I've had my aw434 since the mid nineties and it's been oiled about once,maybe twice a year since then.Still use it to install highway truck lugnuts.Takes them up to about 475 ft/lbs.I put my torque wrench @500 and it just barely moves before clicking.

 

[Marlin]

It is best to oil at the end of the day to displace any moisture in the tool prior to the tools sitting for any length of time and allowing corrosion to start.

 

[gofastman]

Too much oil is worse than not enough.I oil mine once a year,professional use.I've been using the same Mac AW434 impact for about 15 yrs now,no issues.I have friends who oil theirs regularly and end up replacing them after a couple years.I can't remember the last time I had to replace an air tool besides my Snap on air ratchet and that was because the head blew up tightening about 40 3/4" bolts in a turret one day.Not an oil issue,a 3/8" air ratchet just isn't made for that kind of abuse.

I have to call BS on this, any excess oil is just gonna blow out the exhaust.
I will say however that air tools can survive a long time on surprisingly little lubrication as long as the air is clean and dry, 1 or 2 drops at the end of the day is sufficient, I use around 1/4 teaspoon however, because I'm a glutton.
FWIW I feel Marvel air tool oil is ****, every air tool I have taken apart after being run on the stuff is covered with deposits.

 

[caper]

Call BS all you want it's been my experience and observation over the last twenty years.I worked for a guy who wanted his air tools oiled before every use.Never had any that lasted more than a year or two.We were working in dirty,dusty and muddy conditions and when I would take apart the tool they would be caked with ****.My own tools,not being oiled,still function fine.Used to really be a ***** when working outside in the winter.His 1" guns would freeze up constantly.My old Ingersoll with no oil just kept beating away.Once a year I spray some brakekleen in mine and then a few drops of oil.I think too much oil picks up all the contaminents in the air supply and allows them to stick in the tools.Not all the oil you put in gets blown out,a lot of it works it's way into all the nooks and crannies in the tool and stays there collecting **** which will eventually plug up the works.As I said it's just my opinion but after all this time I see no reason to modify it.