Grease Guns

[Scooby074]

I loosen the coupler till it comes off the hose

I think your loosening the wrong part. The coupler needs to be threaded onto the hose (or rigid pipe) FIRMLY. The part you loosen is the KNURLED part. The far end in other words, the part that goes onto the zerk. If you look inside the coupler you'll see some jaws, sort of like a drill chuck. It behaves in the same way, when you loosen the knurled part it spreads the jaws. When the couplers are new they can be very tightly screwed together from manufacturing, Sometimes you need to use pliers on the knurled section to loosen it for the first time. After that you should be able to adjust the jaws by hand.

Good on Lincoln for sending you some couplers although i dont believe you need them. They stand behind their products.

 

[beppington]

... don't forget that the coupler is knurled on the end so that you may screw and unscrew it with thumb and forefinger to tighten and loosen it on the grease zerk to facilitate easy insertion and removal. In other words you can loosen it to put it easily on the zerk, give it a little twist to tighten so that it stays there easily by itself, pump your grease in, and then loosen it again to easily remove it.

That's exactly what I do on every single zerk, since ...

Some people have actually broken zerks trying to get the grease coupler off.

... I did that on one zerk & really didn't wanna do it again :thumbsup:

My Kubota's zerks are not all the same size, so on some the grease gun coupler would pop right on & off, others more difficult, then the one that was so tight it broke when I pulled the coupler off. That was before I knew the couple was a 2-piece unit that could be easily screwed & unscrewed as you describe :thumbsup:

 

[k0ua]

I think your loosening the wrong part. The coupler needs to be threaded onto the hose (or rigid pipe) FIRMLY. The part you loosen is the KNURLED part. The far end in other words, the part that goes onto the zerk.

Great minds think alike


James K0UA

 

[k0ua]

That's exactly what I do on every single zerk, since ...



... I did that on one zerk & really didn't wanna do it again :thumbsup:

My Kubota's zerks are not all the same size, so on some the grease gun coupler would pop right on & off, others more difficult, then the one that was so tight it broke when I pulled the coupler off. That was before I knew the couple was a 2-piece unit that could be easily screwed & unscrewed as you describe :thumbsup:

Glad to have been of some small service

James K0UA

 

[beppington]

I prefer the solid tube for the gease gun over the flexible. You can put it on easier, hold it in place easier and just move along faster with a solid tube.

Same here.

Unfortunatly, some fittings are impossible to get to with the solid tube, so you need a flexible one too.

On my L3940 I can actually get the grease gun on all of the zerks with the solid, slightly bent grease tube. Kubota did a good job of installing angled zerks where needed to accomplish this.

 

[beppington]

I think your loosening the wrong part. The coupler needs to be threaded onto the hose (or rigid pipe) FIRMLY. The part you loosen is the KNURLED part. The far end in other words, the part that goes onto the zerk. If you look inside the coupler you'll see some jaws, sort of like a drill chuck. It behaves in the same way, when you loosen the knurled part it spreads the jaws. When the couplers are new they can be very tightly screwed together from manufacturing, Sometimes you need to use pliers on the knurled section to loosen it for the first time. After that you should be able to adjust the jaws by hand.

Some people might not realize, same as me, that the coupler is a 2-piece unit. The 2 halves of mine were jammed together so tight at the factory that I had to put one end in a vice & lay all my weight on a pair of vice grips gripping the other end to break it free. Moves like butter now. It was actually so tight I wasn't sure mine was actually a 2-piece coupler unit, but I figured I had nothing to lose by trying really hard if I broke it, since it was gonna break more of my zerks if I turned out to be a 1-piece coupler.

 

[Scooby074]

Great minds think alike


James K0UA

That was too funny. Look at the post times. We all fired off the same posts within 3 minutes of each other:laughing: If i didnt draw my fancy picture i would have beat ya

 

[k0ua]

That was too funny. Look at the post times. We all fired off the same posts within 3 minutes of each other:laughing:

That is way cool! He seemed pretty angry, gotta wonder what he is doing right now. At least the zerk didn't snap off.

James K0UA

 

[Scooby074]

That is way cool! He seemed pretty angry, gotta wonder what he is doing right now. At least the zerk didn't snap off.

James K0UA

Hope he didnt fire it across the shop lol. This is such a common issue it should be a Sticky.

 

[Artisan]

Um.. you said you loosened the coupler until it came of of the hose....hmm ...did the part with the hex flats come off of the threaded coupler on the hose or did you loosen the knurled coupler front part while holding the hex flat part ? What I am getting at is the coupler itself is 2 pieces and those 2 pieces need to be loose. Now I know from your first line in your post, you are pretty angry, and I am just trying to be helpful, and you may have done all you can do, and I could be wrong. But look over the coupler carefully and determine if the front and the back half of the coupler are loosened from each other, and not just unscrewed from the hose. If need be put the coupler hex flats in a vise and try to turn the knurled portion with fingers, vise grips/pliers or whatever it takes to seperate the 2 pieces. If you take it totally apart you will be looking for a spring and some chuck jaws on the floor. If you have been down this road I apologize in advance. good luck

James K0UA

Your kidding! The coupler I have appears to be all one piece! I unscrwed the coupler from the hose, now I have a coupler w/ hex and knurled. I took a pair of channel locks on the knurled, and a crescent on the hex and NOTHING MOVED! I myself assumed they were two pieces, I put the coupler under a magnafiying glass and it appeares as though it is all one piece! HA! Defective is an understatement if I understand this coupler is suppose dot be two pieces! NUTS! I'll take pics later...