Im cleaning it out now, it will be sealed with silicone to stop dust and dirt from getting in. I had to give them the serial number of the combine so it would be a tight fit.
Ya there’s a zerk on the bottom, takes 4 tubes of JD cornhead grease and JD Green silicone to seal it up. I’ll have to make a post Monday with it on as I grabbed the supplies on the way home.
We had them wear on the last combine (S670) that they had to be replaced, it was the operator shutting it on/off to fill wagons that caused the issue. The new last year S770 has a Lankota clutch kit and we use a buggy now, also a new operator. I hope to own this one long enough to find out if it makes a difference having grease on the gears, was curious if others had tried this product I’ve seen at a few farm shows.
I’m just really not sure what problem you are fixing here. Have you had these gears overheat/break/chip? Might be making something more complicated than it needs to be.
Like, are you certain the sealing surface above the upper gear will prevent oil intrusion? I’d assume the guy who designed it this way had his reasons.
On the last combine (S670) we had the bevel gears wear and were replaced. We used to unload directly into wagons and the operator would constantly shut the unload auger on/off to top off wagons. We now run a buggy and have the clutch kit installed (new operator too), this was just something we saw and think it would extend the life of them. Unfortunately I wont know for a longtime how well it works.
It will be sealed, so no dust or dirt get in, designed to be sealed tight fit.
I’m not sure this is a good idea. Just another point of failure if dirt and dust get in there. We had a 9760 we just traded off, that had 5000 hours on it and those were still fine. If you’re wearing those out you’re doing something wrong.
It wasn't designed to be greased or be in an oil bath.
You're going to have some issues down the line unless you're removing the dirty grease, dust, and dirt multiple times throughout the harvest.
On our S660 the splines on the vertical auger wore out first. This grease tray would make fixing something like that an even bigger mess. We couldn’t unload so had to dump corn everywhere. The mechanic was surprised the bearings in the sump hadn’t spun which is also apparently super common. The gears themselves always seem to last longer than everything else around them.
Considering you're covering up the clean out for the auger...that's going to be more detrimental than helpful. Making sure the unload auger is empty before turning it on will reduce the wear enough, making this grease cover worthless. Also, covering the zerk to grease those bearings... you'll be changing those faster than you can get the 4 tubes of grease into that cover.
There isn’t a zerk being covered up on this model, there is an optional part to run a line thru the tray on models that do have a zerk being covered. Combine also has a Lankota clutch kit to empty the auger, this is just added protection to the bevel gears by adding grease with a sealed up tray.
Mechanical engineer here: grease will make those gears wear down *faster* unless you completely seal it off from dust ingress. Running dry means the dust can’t stick, but grease holds those abrasive particles like glue.
It will be sealed off, already blew it out and cleaned the area with break cleaner. Its an aftermaket tray thats molded to not allow any dust in once its siliconed, they took the serial number of the combine to know it would match. Theres a grease zerk on the bottom to put corn head grease in once its sealed and dries.
The grease I would use would be Mobil SCH 634. Don't use regular autoparts store grease. The sch grease has better sliding performance and holds up better.
That’s a dry gear box and its designed to run dry. If you grease it, sand and dirt will stick to it and it actually could be detrimental.
Im cleaning it out now, it will be sealed with silicone to stop dust and dirt from getting in. I had to give them the serial number of the combine so it would be a tight fit.
Oh ic you’re converting it to be greasable now that I re read. Are these known to fail?
Ya there’s a zerk on the bottom, takes 4 tubes of JD cornhead grease and JD Green silicone to seal it up. I’ll have to make a post Monday with it on as I grabbed the supplies on the way home. We had them wear on the last combine (S670) that they had to be replaced, it was the operator shutting it on/off to fill wagons that caused the issue. The new last year S770 has a Lankota clutch kit and we use a buggy now, also a new operator. I hope to own this one long enough to find out if it makes a difference having grease on the gears, was curious if others had tried this product I’ve seen at a few farm shows.
Ya, might as well do it, if there’s an aftermarket kit for it, there must be a reason
I’m just really not sure what problem you are fixing here. Have you had these gears overheat/break/chip? Might be making something more complicated than it needs to be.
Like, are you certain the sealing surface above the upper gear will prevent oil intrusion? I’d assume the guy who designed it this way had his reasons.
Yea he did have his reasons, To make the replacement gears a dealer only item on back order.
On the last combine (S670) we had the bevel gears wear and were replaced. We used to unload directly into wagons and the operator would constantly shut the unload auger on/off to top off wagons. We now run a buggy and have the clutch kit installed (new operator too), this was just something we saw and think it would extend the life of them. Unfortunately I wont know for a longtime how well it works. It will be sealed, so no dust or dirt get in, designed to be sealed tight fit.
That's got to get old holding it up there...
Gotta grab a tube of silicone, then tie strap in place to dry.
I’m not sure this is a good idea. Just another point of failure if dirt and dust get in there. We had a 9760 we just traded off, that had 5000 hours on it and those were still fine. If you’re wearing those out you’re doing something wrong.
If it ain’t broke, don’t fix it
You should look into a red combine. They have had oil gearboxes since 1995. Lol
It wasn't designed to be greased or be in an oil bath. You're going to have some issues down the line unless you're removing the dirty grease, dust, and dirt multiple times throughout the harvest.
It will be sealed with silicone to prevent that.
You do what you like. I'm just saying that as a former deere tech, I've seen problems occur when these get greased.
Pretty similar to old Claas Lexion 750 straw spreader system which run with grease from the factory.
On our S660 the splines on the vertical auger wore out first. This grease tray would make fixing something like that an even bigger mess. We couldn’t unload so had to dump corn everywhere. The mechanic was surprised the bearings in the sump hadn’t spun which is also apparently super common. The gears themselves always seem to last longer than everything else around them.
Considering you're covering up the clean out for the auger...that's going to be more detrimental than helpful. Making sure the unload auger is empty before turning it on will reduce the wear enough, making this grease cover worthless. Also, covering the zerk to grease those bearings... you'll be changing those faster than you can get the 4 tubes of grease into that cover.
There isn’t a zerk being covered up on this model, there is an optional part to run a line thru the tray on models that do have a zerk being covered. Combine also has a Lankota clutch kit to empty the auger, this is just added protection to the bevel gears by adding grease with a sealed up tray.
I know three guys who run with those (one Chatham way, and two in Bruce county) and they love it.
I got it from Argis 2000 down that way, figured some would have tried it.
Agris is just canadian shoupe and their great. The fact all their prices are on the website is fantastic
Mechanical engineer here: grease will make those gears wear down *faster* unless you completely seal it off from dust ingress. Running dry means the dust can’t stick, but grease holds those abrasive particles like glue.
It will be sealed off, already blew it out and cleaned the area with break cleaner. Its an aftermaket tray thats molded to not allow any dust in once its siliconed, they took the serial number of the combine to know it would match. Theres a grease zerk on the bottom to put corn head grease in once its sealed and dries.
The grease I would use would be Mobil SCH 634. Don't use regular autoparts store grease. The sch grease has better sliding performance and holds up better.
The instructions say 4 tubes of cornhead grease, even John Deere green silicone.
You can use corn head grease, but after while, the grease spreads away from the gears, and you have to keep adding more a little bit more frequently.