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Implement Alley Discussion Forum

John Deere 660 Hay Rake Gearcase Lube

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Johnnypopper

11-23-2022 15:14:28




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I am doing some off-season maintenance on my John Deere Model 660 Hay Rake. When I look inside the gearcase through the cap at the end of the output shaft, the lube looks white in color. I think it has a lot of water in it and I would like to replace the lube with new lube. The Owner's Manual calls for multi-Purpose lithium grease to be used in the gearcase. Pumping new lube in will be no problem, but I need to get the old lube out first. It looks like I have to remove the 6 cap screws and pull the input shaft assembly out of the gearcase in order to get inside and clean out the old lube. Has anyone done this before, and if so, is there anything I have to look out for? Will anything inside fall out of place and be hard to put back together? I would appreciate any suggestions you may have. Thank You Third Party Image

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showcrop

11-27-2022 04:02:14




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
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I don't look at mine until once in awhile I think "Oh no, I don't hear anything, is it still behind me?"



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showcrop

11-26-2022 03:54:02




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
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Don't you have a forecart to hook it up to?



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Kelly in tx

11-26-2022 17:40:54




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to showcrop, 11-26-2022 03:54:02  
Yup, I have a forecart, but I'd like to sit behind the rake rather than turning around all the time to look at it. I'm lazy! kelly



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Kelly in tx

11-25-2022 17:06:51




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
I have a 670. Mine does not have the front wheel. I've always wanted one with a front wheel so I could put on a tongue, double tree, single trees and an old spring seat in the back to rake with a team of horses. kelly



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showcrop

11-24-2022 08:48:53




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
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In addition to the new seal on the lever hole I cut a piece of inner tube and cut a small hole in the middle and pulled it over the lever.



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Johnnypopper

11-24-2022 09:31:09




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to showcrop, 11-24-2022 08:48:53  
That sounds like a good quick and easy solution to stop the water.



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showcrop

11-24-2022 05:23:59




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
I went through mine 2-3 years ago. I removed the whole input shaft assy. and cleaned it all out good with paper towels. Nothing falls out. There is a bearing in the opposite end from the input shaft that I could not get out. I replaced the input bearing and seal. I also replaced the seal around the actuator lever. That is where the water gets in. There was a hole underneath that enabled me to get a drift in to knock the old seal out. I am pretty sure that I put just plain gear oil in it.

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Johnnypopper

11-24-2022 05:38:19




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to showcrop, 11-24-2022 05:23:59  
Thanks for the information. I am going to fabricate a cover over the shift lever when I am done to prevent any water from getting in. I store it indoors, but occasionally it gets rained on during haying season. This rake was stored outdoors for several years before I bought it and I am sure water leaked into the gearbox.



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matthies

11-23-2022 19:34:50




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
Went to the online publications for deere and they say to use deere multipurpose grease or equivalent. So otherwise whatever you use in your grease gun. So using a gear oil might go right through the seals. Or cornhead grease if you want have a lighter grease in there.



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shaun wallace

11-23-2022 17:13:35




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
Off white is the only color I have seen multi-purpose lithium grease in. Weather in pound can or cartridge or as motor assembly lube.



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rustred

11-23-2022 15:46:54




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
i would put some 80-90 gear oil in it. then use it. then drain it. then put in what ever you want grease or gear oil. i would just use 80-90 gear oil. you mean thee is no drain plug at the back? that is odd.



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Johnnypopper

11-23-2022 17:54:45




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to rustred, 11-23-2022 15:46:54  
The parts list does show a 3/8 pipe plug but i dont see one on my gearbox. The grease thats in there will not come out through a 3/8 plug hole anyway, so it would not be of much use.



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rustred

11-23-2022 19:16:00




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 17:54:45  
That is the reason I said to put oil in it , then use it to mix it all up then drain it. I use 80-90 in my new Holland 256.



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Johnnypopper

11-24-2022 05:07:13




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to rustred, 11-23-2022 19:16:00  
Thanks. That could make it flow a little bit. Right now it will not flow at all.



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Jim.ME

11-23-2022 15:39:44




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 Re: John Deere 660 Hay Rake Gearcase Lube in reply to Johnnypopper, 11-23-2022 15:14:28  
Here's a link to the online parts catalog, so you can see what is in there in case you find you need some parts, as well.
Link



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