corn head grease

Corn hear grease should always go in the corn head gearboxes. It's thinner than standard grease.

I use hi-temp grease in everything now. It's more expensive, but it's good for wheel bearings and other hi-temp areas. I wouldn't use regular grease in things like combine cylinders or roters.

I use his temp grease for everything also. Service pro is the brand.

corn head grease , Agco brand, is petroleum based. It is to be used in hugger corn head gearboxes.  Regular  grease can possibly destroy a gearbox.  There is also a synthetic EP0 - it will NOT mix with corn head grease.  It will 'clabber ' and fail to lubricate the gears and brgs.  We had a customer who added a different brand of synthetic grease and the seals leaked. We replaced all under warranty . They failed again. Customer was so upset he traded combines. We got the head on a trade and pulled down a gearbox - it was like expanding foam - we cleaned the mixture out, installed new seals and it has performed flawlessly for over 15 years.  Moral, use the correct grease for the correct application...    

As stated above there's many differences in greases.  There's basestock viscosity that is not always easy to obtain, NLGI which is the thickness (stiff/fluid like) of the body of the grease itself and then the thickner type.  Some thickener types when mixed, will cause fall out or drop out.  The combination of incompatible grease thickeners will cause liquification and the grease will drop fall out.

The different viscosity is a grease (e.g 220, 320, 1200) relates to the "bleed" rate of the actual lubricating oils in the grease thickener.  A lightler ISO viscosity "220" will release the lubricating oils faster than a "1200".  Simply put the faster the moving part the faster you need the lubricating oils to bleed out of the thickener.  Slow speed high load assets don't need the oils to bleed as quickly. 

A lot of gearbox applications will call for an NLGI "0" or "00" which is a liquified grease or a heavy gear oil with EP properties.

For hard to reach grease zerks and critical components, I would clean our all old grease and use a quality grease with Moly.  Moly is a solid sacrificial lubricant that stays in place longer and adds more protection to moving parts.

Grease is not just grease like oil is not just oil.  There's a lot of differences that depend on service times and or lack of regular servicing.  Just because a lubricant works well for one person or piece of equipment doesn't mean that you will get the same results if your maintenance or preventative maintenance program is different.

My nickels worth
Jason

Ah I see. So since my black head has no gear boxes, what should be the best grease then? And should the open gears be lubricated?

I was under the impression that "corn head grease" applied to all heads not just ones with gear boxes. Makes sense now..

Sounds like mystic or moly?

Grease or oil on open gears attract dirt, or even dust and acts like sandpaper on gears.

DM, do you have any grease sales reps nearby that would go over base types, your intended uses, etc? Imo its worth the time to research what belongs in your application, find the best that's readily available- so you don't have to change and run into compatibility problems later- keep some on hand for the same reason, then get on to projects that are actually fun! Hope that made sense. If nobody around to walk ya thru that process, don't hesitate to pm me

I'm am by no means educated on different greases but we have always used a higher quality grease. We buy all our hydraulic and motor oil from the oil company that delivers our fuel. We get our grease from them as well. It's a red grease with moly. Connoco brand I believe. You can feel the difference between it and the cheap black grease. You can wipe them off your finger with a rag and you can still feel the red.

As far as gear boxes go. We have been guilty of using chain saw bar oil in leaking gear boxes. It definately lasts longer. That's only on an old auger that gets used once every 2-3 years though.

Tim- I have used their products. Only reason I quit is I got one box of grease that bled. Prior to that I had pretty good results. That said, if you are near fort worth..... You are in the best possible spot to find a few different manufacturers of top notch lubricants right in your backyard

Well said bigbadallis. Tim, any success yet?

Tim, that's true. Pretty sure that's the line I handle