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No. 11 Auto Patrol Differential

No. 11 Auto Patrol Differential

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Jeremy Williams
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I picked up a tandem drive diesel No. 11 Auto Patrol this spring, and have been playing with it a little. My concern is that the front tires are scrubbing really bad when I am turning, and it takes about 20 acres to make a turn. I jacked up the left side of the machine today, and could not rotate the wheels either direction, like the differential is stuck or pinned somehow. Does anyone have any experience with one of these before I take the rear cover off?

Thanks,

Jeremy
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Fri, Sep 29, 2017 6:22 AM
Bruce P
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Hi Jeremy, I'm pretty sure there is no differential in your grader. They take a pretty big acreage to turn without the leaning front end. Sorry I can't be more help.

BP
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Fri, Sep 29, 2017 8:19 AM
Deas Plant.
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Reply to Bruce P:
Hi Jeremy, I'm pretty sure there is no differential in your grader. They take a pretty big acreage to turn without the leaning front end. Sorry I can't be more help.

BP
Hi, Jeremy Williams.
I think you will find that Bruce P. is right - NO differential. At the time, it was the best way to get the most traction out of a tandem drive. Your model may not have the leaning front wheels but they were fitted to later machines to help overcome the lack of a differential and also to help cope with side loads when working the grader under heavy side loads.

Just my 0.02.
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Fri, Sep 29, 2017 8:55 AM
Old Magnet
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Reply to Deas Plant.:
Hi, Jeremy Williams.
I think you will find that Bruce P. is right - NO differential. At the time, it was the best way to get the most traction out of a tandem drive. Your model may not have the leaning front wheels but they were fitted to later machines to help overcome the lack of a differential and also to help cope with side loads when working the grader under heavy side loads.

Just my 0.02.
What model and s/n is the machine. My 8G1 parts book shows them starting out without differential then converted to differential then 8G296-up standard with differential.
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Fri, Sep 29, 2017 9:25 AM
657cat
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Reply to Old Magnet:
What model and s/n is the machine. My 8G1 parts book shows them starting out without differential then converted to differential then 8G296-up standard with differential.
Both of my 11's are straight spool no diff. So is my 10 as well
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Fri, Sep 29, 2017 11:01 AM
Jeremy Williams
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Reply to 657cat:
Both of my 11's are straight spool no diff. So is my 10 as well
Thanks for the info everyone. My grader is a 6K , and the serial number is around 1000 I believe. It does have the leaning front wheels also, which does help turn.

Thanks,

Jeremy
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Fri, Sep 29, 2017 7:57 PM
Old Magnet
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Reply to Jeremy Williams:
Thanks for the info everyone. My grader is a 6K , and the serial number is around 1000 I believe. It does have the leaning front wheels also, which does help turn.

Thanks,

Jeremy
I don't have a Parts Book on the 6K's. Does anyone know if all the series is non-differential?
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Fri, Sep 29, 2017 10:19 PM
naylorbros
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Reply to Old Magnet:
I don't have a Parts Book on the 6K's. Does anyone know if all the series is non-differential?
I do not have my parts books here, but if I remember there was a field change kit to install a differential in the Auto Patrols if you wanted. The back ends of the ones I have been in have all be solid.
Ken
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Fri, Sep 29, 2017 10:41 PM
Old Magnet
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Reply to naylorbros:
I do not have my parts books here, but if I remember there was a field change kit to install a differential in the Auto Patrols if you wanted. The back ends of the ones I have been in have all be solid.
Ken
OK, thanks. Looks like I may have misinterpreted the parts book. Appears standard was straight axle but there were two field kits depending on axle size. Not a case of across the board change. The field kit does not state that it is a field change and not under an attachment heading. I would imagine the 6K's are the same situation.
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Fri, Sep 29, 2017 11:30 PM
657cat
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Reply to naylorbros:
I do not have my parts books here, but if I remember there was a field change kit to install a differential in the Auto Patrols if you wanted. The back ends of the ones I have been in have all be solid.
Ken
Stock was no diff for all 6k. Differential is listed as an attachment. Serial number split around 850 for larger axles
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Fri, Sep 29, 2017 11:31 PM
657cat
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Reply to Old Magnet:
OK, thanks. Looks like I may have misinterpreted the parts book. Appears standard was straight axle but there were two field kits depending on axle size. Not a case of across the board change. The field kit does not state that it is a field change and not under an attachment heading. I would imagine the 6K's are the same situation.

6k book is the same. 3 1/8" for the early and 3 1/2" axles for the later. Bigger axles for the diesels? 8g was gas?
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Fri, Sep 29, 2017 11:34 PM
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