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post #1 of 36 Old 05-20-2019, 01:24 PM Thread Starter
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John Deere JX75 / JX85 / SB14

Hi all,
I was given a JX75 that was destined for the scrap heap. About $140 later, I have replaced all the worn and broken parts and have a good working mower. In fact I love it!

I am looking to get a back up mower and have been offered a JX85 & SB14, the latter is in good order and the JX85 needs a new drive cable. I will be able to check whether it propels once the clutch arms are raised before parting with the cash. Looking at the spec's it seems that other than the JX85 being 20lbs heavier than the others, they are identical regards engine, transmission and other spec's.

Does anyone know what if anything the differences are?
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post #2 of 36 Old 05-20-2019, 02:38 PM
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Re: John Deere JX75 / JX85 / SB14

JX85 has a different length on the transmission shafts that drive the different wheels. Gears on the wheels are different. Height adjuster assemblies for the back wheels differ because they have built-in slotted guide plates.
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post #3 of 36 Old 05-20-2019, 02:44 PM
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Re: John Deere JX75 / JX85 / SB14

85 Had heavier ball bearing wheels with steel gears instead of plastic, that resulted in the axle needing to be a tad wider, so tranny is different, also has more heavy dutier wheel adjusters,
very HD nice machines, I have a JE75 which is the electric start model, love mine!

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post #4 of 36 Old 05-20-2019, 03:02 PM Thread Starter
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Re: John Deere JX75 / JX85 / SB14

Thanks for the replies. So basically the JX85 is a beefed up JX75 designed for the commercial market?

I'm hoping to be able to get both these (they are sold as a pair) and then sell on the SB14, keeping the JX85 as a project / spare.
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post #5 of 36 Old 05-21-2019, 07:47 AM
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Re: John Deere JX75 / JX85 / SB14

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Originally Posted by Mole Patrol View Post
Thanks for the replies. So basically the JX85 is a beefed up JX75 designed for the commercial market
Correct, thats how they were marketed

1948 Allis UC Hi-Crop Cane
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1948 Allis G
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1954 Allis G
1959 Ferguson TO-35
1972 MF 135
1979 Power King 2418
1989 Ford 345C TLB
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post #6 of 36 Old 05-21-2019, 08:42 AM
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Re: John Deere JX75 / JX85 / SB14

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Originally Posted by Mole Patrol View Post
Thanks for the replies. So basically the JX85 is a beefed up JX75 designed for the commercial market?

I'm hoping to be able to get both these (they are sold as a pair) and then sell on the SB14, keeping the JX85 as a project / spare.

Those JX 85's are EXTREMELY hard to find. I would restore that thing in a heartbeat. The JX85 is a commercial JX75. It also came standard with the oil filter, whereas the JX75 and 14SB have it as an optional accessory.

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post #7 of 36 Old 05-21-2019, 10:55 AM Thread Starter
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Re: John Deere JX75 / JX85 / SB14

The JX85 is missing a push / pull cable and I know where I can get a new one for about $25. Going on the photo the SB14 looks like it has had some use as the seller has changed the front wheels with the back ones just like I did on my JX75. I could put the better 2 wheels from my JX75 on the SB14 and then buy four new Oregon wheels for mine, and sell the SB14 for whatever I could get for it to fund the restoration. It is supposedly working perfectly so it should be easy to move on.

I'll know better tomorrow when I go to view and hopefully collect.

Thanks for the advice.
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post #8 of 36 Old 05-22-2019, 08:16 AM
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Re: John Deere JX75 / JX85 / SB14

I would bring both of them home, best mowers ever made, most parts are available through John Deere.
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post #9 of 36 Old 05-22-2019, 01:46 PM Thread Starter
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Re: John Deere JX75 / JX85 / SB14

I went to view the mowers today and left them where they were. The SB14 badly needs a BBC or the bearing replacement. It is really bad. But if the bearing is worn it is likely that the friction parts will be worn too. A new BBC is 160 over here. The JX 85 is in a very sorry state and also needs a new BBC or bearing replacement. There are several parts missing including the push/ pull drive cable. It could not be made to propel so I could not easily assess whether the spur gears were OK without dismantling a wheel. They are $150 each! Even used ones are fetching $80. Plus postage from the USA to France. By then I'd made up my mind that they were too expensive.

I've left an offer of one-third of the asking price.
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post #10 of 36 Old 05-22-2019, 08:16 PM
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Re: John Deere JX75 / JX85 / SB14

its possiable to delete the bbc on both these models. cost Is only about 40 dollars. ihave done 2 of mine.
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post #11 of 36 Old 05-23-2019, 01:47 AM Thread Starter
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Re: John Deere JX75 / JX85 / SB14

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its possiable to delete the bbc on both these models. cost Is only about 40 dollars. ihave done 2 of mine.
That part is a lot more expensive in Europe and to be honest I wouldn't want to have the blades running all the time the motor was on.
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post #12 of 36 Old 05-23-2019, 10:54 AM
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Re: John Deere JX75 / JX85 / SB14

I have a JX75 that is in very good condition and looking to sell. I'm in CT. Anyone can PM me if interested. Has the bag and side discharge shoot.
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post #13 of 36 Old 05-23-2019, 03:38 PM Thread Starter
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Re: John Deere JX75 / JX85 / SB14

Too far for me to travel I'm afraid. But I have found another JX85 for sale at a reasonable price and it looks in good condition. It is being sold by a private seller who has only used it for domestic use.

https://whttps://www.mytractorforum....entid=2377905&

https://www.mytractorforum.com/attac...377905&thumb=1

The seller reports that the transmission is faulty so I'll hope that it is something simple like the shaft key or a loose belt.

I was reading a post by someone who used JX75's and JX85's for commercial mowing. He said that each mower did on average 4 hours a day and he got three years out of them before needing BBC replacements. If he worked 5 days a week then the mowers would do 20 hours work in a week. My mower does 30 minutes per week, one-fortieth of his mower's work. So on that basis the JX85 should last me 120 years less whatever the previous owner has put on it.
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post #14 of 36 Old 05-26-2019, 10:37 AM Thread Starter
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Re: John Deere JX75 / JX85 / SB14

Hopefully I'll be picking the JX85 up tomorrow. While browsing a freeads site I came across this old mower being sold for parts for very little money. At first I thought it was a Franken Mower with steel wheels and an oil filter being added to an old 14SB, but closer inspection shows that is it a "14SC Pro".

https://www.mytractorforum.com/attac...378221&thumb=1

https://www.mytractorforum.com/attac...378219&thumb=1

Once I've had a good look at the JX85 I might contact the seller of the other one and try and do a deal. It is worth the price just for the wheels and if the spur drives are OK the whole mower works out at less than the cost of one new one. I'm not sure if it has a BBC though. There doesn't seem to be a cable going down the right hand side and neither photo gives a good view of the handle. The motor has been taken out as it is facing the wrong way.

There isn't much information on the web about this model but the ones shown all have a BBC so hopefully one will be included.
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Last edited by Mole Patrol; 05-26-2019 at 10:54 AM.
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post #15 of 36 Old 05-26-2019, 10:21 PM
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Re: John Deere JX75 / JX85 / SB14

the 14sc does NOT have a bbc. this is a good thing. I have had both deere modles and the non bbc is far better in performance and lighter. there is more to wear out and expencive to replace on the deere bbc . I have a 14sc in my stable that's given 30 years of service in commercial duty also. -it needs a new rear axle finally as its almost worn tru. the 14sc and jx85 are identical in every way except where bbc is concerned.
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