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post #1 of 11 Old 03-23-2005, 06:31 AM Thread Starter
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Air operated grease gun

They went and put a Northern Tool outlet within striking distance of my place, this is bad, very bad. My buddy and I made one trip there so far and the only thing I bought was an air operated grease gun and an assortment of Zerk fittings. Central Pneumatic brand, (made in China). Have not used it yet but for $18.00 it seems fairly well made. I bought it hoping that it will speed up the process as I can spend half a day just greasing equipment. The unit comes with a solid pipe and a hose, both have ends already on them. Gonna give it a go tomorrow and will let everybody know what I think.
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post #2 of 11 Old 03-23-2005, 08:41 AM
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Good luck! Make sure to bleed the gun. When these guns first became popular a few years ago I sold a ton of 'em. They weren't central pnuematic but were made by professional tool products llc. I got just about all of them back! Very finicky gun. They would need to be bled alsmost every use and most times never even finished the job without stopping again.

The only one that seeems to work well is the lincoln model 1163. I replaced all those others with the lincoln and never had any more problems. The lincoln costs around $72, but with something as messy as a grease gun. it's worth every penny to not to have to constantly open it to see why it's not pumping.
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post #3 of 11 Old 03-23-2005, 08:46 AM
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I have three of the import made guns and a much higher priced american made model (Plews IIRC) and use them hard and often. Bleeding them as stated by sixchows is important or they just do not work, but then again neither will a manual gun work if it gets air in the head. I love em, sure is easier than trying to pump a handle in an awkward position. I use all hose or flex hoses on the ends of mine, as it makes them much more versitile.

BYE y'all........
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post #4 of 11 Old 03-23-2005, 08:59 AM
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Hey Slip,

Let me know how much distance you can get with your grease gun! ROF
post #5 of 11 Old 03-23-2005, 03:12 PM
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Hey Slip,

Let me know how much distance you can get with your grease gun! ROF
I got 6 feet to the side of the garage once with my old CP gun. One heck of a mess that I never cleaned up for 6 months!!!! Don't ask but I did it :fest15:

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post #6 of 11 Old 03-23-2005, 07:55 PM
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I remember some of the air grease guns I used many moons ago when I was twisting wrenches that would shoot 20 or 30 feet. Made a real nice surprise for you if you did not get the grease gun fitting on the zirk fitting properly.
post #7 of 11 Old 03-23-2005, 08:16 PM
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Slipshod: Half a day greasing equipment? I can spend that just trying to refill my POS grease gun. I dont mind manually sqeezing the trigger, but would almost rather throw the thing away when out of grease, and start with a new one. The flexible hose would be a good idea too,

Do the pneumatic grease guns still use the cartridges, or can they be loaded more easily?

Greg
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post #8 of 11 Old 03-23-2005, 09:23 PM
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They use cartridges. Some are also convertible so you can pack it by hand from a bulk drum........Cartridges is the only way to go for less mess. Its easy to bleed them, or even a manual gun. I always pack the head portion with grease, and then only screw the head on partially, release the plunger rod, and then fish tightening up the head to cansister. 9 out of 10 times its sufficient to get any air out. I rarely use the bleeders on the top.

I made a pressure operated oil gun out of a manually operated grease gun. I use it to pressure lube odds and ends with heavy oils. Often oil does better at lubing something as it does not allow accumulated dirt etc to keep building up and is easly washed out and flushed with more oil. I use oil on my top link adjuster, and the ball ends on the lift arms.....

BYE y'all........
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post #9 of 11 Old 03-23-2005, 09:36 PM
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What REALLY SUCKS is when the plunger rod comes loose and ejects the grease you were packing by hand all over the guy next to you! ROF ROF ROF
post #10 of 11 Old 03-23-2005, 09:38 PM
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Chipmaker , Thanks for that info , I was gonna ask about the best way to bleed the air .
Thats a great idea with the heavy oil . some times I oil the slides on my roll back bed truck. rattle can gets exspensive. Thanks , thats gonna be easier than greasing the slides.( with a parts brush) Thanks again.

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post #11 of 11 Old 03-24-2005, 08:45 AM
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Chipmaker , Thanks for that info , I was gonna ask about the best way to bleed the air .
Thats a great idea with the heavy oil . some times I oil the slides on my roll back bed truck. rattle can gets exspensive. Thanks , thats gonna be easier than greasing the slides.( with a parts brush) Thanks again.
To convert a hand type grease gun into a high pressure oiler, you need to seal the hole where the plunger rod extends out the bottom, as well as remove rod and spring and other related parts on the plunger itself as they are not needed. I just inserted a cut off portion of a bolt head into the hole and brazed it in place. You also need to make sure the bottom portion of the resivoir where the rod comes through is sealed. I also ran a bead of silver braze around it as well. To use remove the head portion , fill the resivoir with oil of your choice, screw it back on the head. Invert the gun so resivoir is pointing up and pump away.

I got the idea from an old machinist. Bridgeport milling machines and other machine shop tools have lots of grease fittings, however if you look at the machines manuals, they all call for some oil of some spec or other....So why grease fittings if it takes oil........why oil when it has grease fittings......Simple oil is capable of flowing out accumulated dirt and chips etc, and it does not casue more drag like some greases would. Some of the oil passages are very long on some of these machines, so a typical oil cut would not work that good. A grease fitting allows you to pump oil to the places and provide sufficient pressures to clean channels and get the oil to where it goes, between the V ways etc. So on a machine tool just because it may have a zerk fitting, does not mean it gets grease.....To me a high pressure oiler is very handy. I have also used it as a sort of cheap hydraulic porta power to push out blind mounted seals and bushings etc, and a lot less mess than grease.

BYE y'all........
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