OFFLINE
Posted November 30, 2013 - 08:58 PM
I am new to Bolens tube frames and have ended up with 4, I have 2 850's, 1 1050, and 1 900. My super nice 850 has a bad rear end. I am sure it is common knowledge among the Bolen's fans, are the rear ends interchangeable or is there differences in compatibility? Any insight could save me and the tractors the pain of my usual trial and error process.
Thanks
Tim
OFFLINE
DR. Bolens
Posted November 30, 2013 - 09:04 PM
Basically you have 3 rear ends for the gear drive tubeframes a 3 speed with controlled differential, 3 speed with no controlled differential and a 6 speed
Your 850 has the 3 speed with controlled differential
Other Models that used the 3 speed transmission with differential are 800,850,900
OFFLINE
Posted November 30, 2013 - 09:08 PM
I should have studied the set up a little more before throwing out questions I guess. Is the hi-lo range on the 850's achieved with pullies, and the 1050 an actual gearing issue?
OFFLINE
DR. Bolens
Posted November 30, 2013 - 09:13 PM
I should have studied the set up a little more before throwing out questions I guess. Is the hi-lo range on the 850's achieved with pullies, and the 1050 an actual gearing issue?
Yes, the 1050's transmission has an extra set of gears put in for Hi/Low
OFFLINE
Posted November 30, 2013 - 09:13 PM
I should have studied the set up a little more before throwing out questions I guess. Is the hi-lo range on the 850's achieved with pullies, and the 1050 an actual gearing issue?
Yes the 850's use belts for the high low and the 1050's use gears in the actual rear end for the high low. All of the gear drive transmissions will interchange but if you use a 1050 trans on your 850 you will also need the transmission cover from the 1050 because it has another shift lever for the high low.
OFFLINE
Posted November 30, 2013 - 09:14 PM
OFFLINE
Posted November 30, 2013 - 09:34 PM
Thanks, that helps and makes sense. I was prepared to change the covers for the lever differences. If the 1050 has a good rear end/transmission, would it be preferable and or stronger and the better choice, or should I snatch the other 850's rear end? I came up with a nice package of tiller, front blade, rear adjustable hitch and I wanted to make the best possible and durable set up.
Thanks again
Tim
OFFLINE
DR. Bolens
Posted November 30, 2013 - 09:40 PM
Thanks, that helps and makes sense. I was prepared to change the covers for the lever differences. If the 1050 has a good rear end/transmission, would it be preferable and or stronger and the better choice, or should I snatch the other 850's rear end? I came up with a nice package of tiller, front blade, rear adjustable hitch and I wanted to make the best possible and durable set up.
Thanks again
Tim
If it were my tractor I'd put the same style transmission in to keep things original......
OFFLINE
Posted November 30, 2013 - 09:47 PM
I will try and do that because it is a nice original, the PO said he killed the rear end and it would not move. There is a lot of lateral slack in the rear axles. I just thought if the 1050 had a superior rear end, I would consider that route. But now that I think of it, I would be killing a useable 1050.
OFFLINE
Posted November 30, 2013 - 09:54 PM
If you want to use the 850 for the rototilling I would use the 1050 rear end because that will give you a total of 12 forward speeds and some very low speeds that would be perfect for rototilling. I personally like the 1050 high low setup over the 850 setup because the 105 setup is very easy to use compared to trying to use a lever to change belts.
OFFLINE
DR. Bolens
Posted November 30, 2013 - 09:57 PM
If you want to use the 850 for the rototilling I would use the 1050 rear end because that will give you a total of 12 forward speeds and some very low speeds that would be perfect for rototilling. I personally like the 1050 high low setup over the 850 setup because the 105 setup is very easy to use compared to trying to use a lever to change belts.
I dont think you really need to go any slower than 1st low...... Its really not that hard to switch speeds on either transmission if you ask me 
OFFLINE
Posted November 30, 2013 - 10:19 PM
I dont think you really need to go any slower than 1st low...... Its really not that hard to switch speeds on either transmission if you ask me
That's just my experience from using my 850 and 853. I never really liked the design of the belt shifter. My 850 also has a 1050 rear in it and I really like the low speeds. I don't use them much but they are nice to have,
OFFLINE
Old, but not dead -- yet!
Posted December 01, 2013 - 07:48 AM
... the PO said he killed the rear end and it would not move. There is a lot of lateral slack in the rear axles.
It's possible something is broken, or just the rear-axle end-play needs to be adjusted.
Correct rear-axle end-play is important on these tube-frames. ....It is very easy to adjust.
http://gardentractor...lay-adjustment/
OFFLINE
Posted December 01, 2013 - 10:51 AM
It's possible something is broken, or just the rear-axle end-play needs to be adjusted.
Correct rear-axle end-play is important on these tube-frames. ....It is very easy to adjust.
Bruce ; I read somthing about the end play on tube frames while learning about the lock out hub on my new 1556,, Can you feel the end-play or see it ?? would the rear wheels feel sloppy or how would I know if it needs adjustment.?? Tim !! not trying to steel your'e thread.. sorry !
OFFLINE
DR. Bolens
Posted December 01, 2013 - 10:58 AM
Bruce ; I read somthing about the end play on tube frames while learning about the lock out hub on my new 1556,, Can you feel the end-play or see it ?? would the rear wheels feel sloppy or how would I know if it needs adjustment.?? Tim !! not trying to steel your'e thread.. sorry !
If its real bad the cast iron wheel hubs will have a gap where the oil seals are. Alot of transmissions were destroyed by neglect.
Its a very simple procedure but not many people know about it or take the time to make the adjustment.
