IH 37 disk - One grease jerk on gang not taking grease.

andy r · Mar 29, 2020

Working on a IH 37 of mine that a neighbor borrows all of the time. I should just sell it to him! Worked on one gang yesterday and all it needed was tightened up. Once I got the spacer with the square hole off behind the nut it all went fine. That took a lot of heat/water/penetrating oil/taps to get off. Moved to the other front gang. The only thing that gang needs is the inside bearing will not take grease. Gang turns perfect and smoothly with no noise and I think that inside bearing is still OK. Just will not take grease! I believe the jerk is the drive in type. Tried to loosen the jerk up with a little hydraulic tool that you hit with a hammer. No success. Tried to pull the jerk out which ended up being more like breaking it apart to get it out. I guess my question is how does grease get to the bearing from the hole/jerk? Was there a slot machined into the housing or race? Could the bearing race inside have moved and grease can not get by? Can I drill another hole some place else and drive another jerk in?? Thanks for you ideas. Andy

Janicholson · Mar 29, 2020

If the bearing has a lubrication groove in its outer diameter, that allows grease to travel around the bearing to find a hole to the inside, the best is likely to take out the existing zerk, then tap the hole for a 1/8"pipe thread zerk. Use thick grease on the drill bit so chips stick into the flutes of the bit. If you use one of those grease filled hammered on tools it will force whatever is plugging it up, into the bearing. Jim

rlp in Co. · Mar 29, 2020

Usually you can take a piece of wire and clean out as much of the old grease out of the hole as you can. Then spray carb cleaner in the hole with the straw and leave it full if you can. Then put on a new zerk and maybe it will take grease!

showcrop · Mar 29, 2020

If you have the discs a little off the ground there will be no upward pressure against the top of the housing so the grease will spread out on the bearing surface, and as you roll it the grease will spread more.

fixerupper · Mar 29, 2020

Heat it up a little but not enough to burn the seals. Maybe use a propane torch so you dont accidentally burn the seals. Picking out the old grease will go easier.

Leroy · Mar 30, 2020

First thing to do is actually figure out what you have. It is very possible the bearing has been replaced with a non greasable bearing in a housing designed for a greasable bearing. Think orignal bearings were greasable but replacement are sealed bearings. If this is what you have then trying any of the things mentioned will result in you buying a new bearing.

Leroy · Mar 30, 2020

Had a disk with the non greasable bearings and friend had onewith the white iron bearings. WhenI quit farming he wanted mine because he thought the bearings mine had would pouu easier. After the white iron on the 37 disk came a greasable ball bearing that you were only supposed to upt in one pump per year, Then the non greasable bearing that replaced the greasable in the housing but then you did not use the grease gun, could have replaced housing but that was more money. The reason I believe they started using the non greasable one was people trying to overgrease the ones you could grease and blowing the seals. Sounds like what happened to your disk in having all other bearings having blown seals.

caterpillar guy · Mar 31, 2020

On our 470 when that happened it was bearing time. So we just ran it till the bearing was shot then replaced with new bearing. They would sometimes last for a couple years or more that way.

IH 37 disk - One grease jerk on gang not taking grease.

andy r

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Janicholson

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rlp in Co.

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showcrop

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fixerupper

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Leroy

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Leroy

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caterpillar guy

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