New grease gun gizmo!!!!

Hi, OM.
RE-inventing the wheel? Pardon me if this sounds like teaching granny to suck eggs. A standard coupler works by using hydraulic pressure from the grease itself to close the jaws of the chuck - which is exactly what makes it hard to remove a standard coupler if the zerk or associated 'plumbing' is blocked for any reason and there is a pressure build-up. If you are getting a pressure build-up, wouldn't it be a good idea to find out why and remedy it?

A standard coupler in good condition on a zerk in good condition DOES NOT NEED to be held in position to seal and direct grease through the zerk. All it needs is a good zerk and to be help pretty close to parallel to the line of the zerk. If a good seal can not be achieved without 'hands-on', there is a problem with either the coupler - usually wear - or the zerk - or both. So much for no hands being needed to hold the coupler on the zerk.

I seriously doubt that that coupler would make much if any difference in the case of a damaged zerk for the same reason that any metal-to-metal seal will leak if any of the mating faces are damaged.

It is possible to adjust some couplers to compensate for wear in the locking jaws. If there is a screw-on cover at the front of the coupler holding the jaws in place, remove it and grind A LITTLE off the back end of the cover. This will allow it to screw down just a little further to help worn jaws get a better grip.

Personally, I prefer Macnaught couplers because they lock on maybe a little too well when brand new and it helps if you unscrew the front cover to loosen the grip a bit. This means that you can then screw the cover up a little tighter as the coupler wears to compensate for the wear. Great. Built-in adjustment.

Just my 0.02.

I have never heard a grease nipple called a zerk before I guess I have being wrong along time, but have to agree with Deas on this a good Macnaught gun is the way to go if the nipples are stuffed well I just replace them and most times all's good, zerks ha nearly fell off my chair seeya's

Paul

Without GOOGLING the whole history of "grease nipples". I believe the trademark name of "Zerk" came into usage around the time period when auto producers were switch from "Alemite" type of grease fittings. The reasoning was probably due to the fact that a Zerk had the little ball and spring inside to keep grease in and dirt out along with the unique shape to keep the coupler engaged. Alemite fittings were typically straight sided with a screw cap (easily lost) with some of the later style having locking pins to hold the coupler and a different style of "pressure gun" to push grease in.
Consequently you had to ask for the correct tools for the unique fitting hence the trade name "Zerk" came into being!
Disclaimer:
I am not 100% certain of this BUT I have seen enough Machinery and Automotive History Advertisements touting the advantages of certain "New" items making their Product better. One of which was the way to Lubricate was always a Major Advertising Seller!

Hi, Mrsmackpaul.
Them dumb 'Merican 'top-siders' do a LOTTA things diff'rent frum us clued-up, common sense DowNunder folk. They drive on the wrong syda ther road, eat with their knife and fork in the wrong hands, eat their salads BEFORE their main meal, accuse US of having an accent when it'z them wutt has ther accent - - - - - - - - and they call nipples 'zerks'. Wunda how their women-folk feel 'bout that?

They also walk, stand and sit with their heads pointing UP - which must leave their brains starving for blood and oxygen due to the effects of gravity. LOL.

Just my 0.02.

(Note: The views expressed by this writer are not necessarily those of the management of this site and nor are they necessarily endorsed by said management.)

[QUOTE=Deas Plant.


They also walk, stand and sit with their heads pointing UP [/QUOTE] Always wondered how you keep your hard hat on down there? Do you all wear chin straps? LOL

Hi, DPete.
Hwutza hard hat?

A kew-ree-yus mind would like to know.

Maybe ya can't wear them down there:loco:. Every time I point my head down it falls off, kinda frustrating. If yer standin on the bottom of the planet with head pointed down no way could it stay on, probably why you don't know wutza hard hat :usa: