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7580 won't move

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crow View Drop Down
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Joined: 16 Apr 2023
Location: WOODSTOCK, ON
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Post Options Post Options   Thanks (0) Thanks(0)   Quote crow Quote  Post ReplyReply Direct Link To This Post Topic: 7580 won't move
    Posted: 16 Apr 2023 at 11:01am
i bought an Allis Chalmers 7580 last year and when using it to cultivate , it stopped moving. The PTO , hydraulics and steering all work but it won't move in either forward or in reverse. Any ideas as to why? thanks
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victoryallis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote victoryallis Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2023 at 1:07pm
BTDT

Seems like it was a shaft on the bottom of the transmission snapped. Cab needed to be tilted way back to do it.
8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760
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MikeKroupa View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MikeKroupa Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2023 at 7:15pm
Check the transmission/dropbox coupler. Remove the plate underneath the battery box and take a look. Good Luck, Mike
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MACK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2023 at 8:12pm
Took the splines out of PD hub.               MACK
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crow View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote crow Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2023 at 8:37am
Thanks for the ideas as to what is wrong. When I get it in the shop we will have a look.
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CAL(KS) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CAL(KS) Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2023 at 9:11am
second trans output shaft coupler.  done one
Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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Lynn Marshall View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lynn Marshall Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2023 at 11:00am
If the splines are gone in the power director hub like Mack says,then you should be able to put it into gear without any gear grinding. This is with the engine running and the clutch pedal up.
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crow View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote crow Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2023 at 8:45pm
No it is still grinding when i put it in gear.

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DrAllis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2023 at 9:04pm
Then, I would think that if you put it 5th gear, release the clutch, throttle up a bit and step on the hi button, you should "hear" things whirring under the cab floor. This is with the range trans in low range. That to me would mean the coupler after the transmission, not the clutch housing splines.
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Adam Stratton View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Adam Stratton Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2023 at 10:59pm
No chance the range lever popped out of gear? Does it act the same way in both ranges? Had a cable break on the range selector on an older steiger the other day and acted a lot like you are describing
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shameless dude View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote shameless dude Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 2023 at 3:20am
the floor buttons not stuck halfway? sometimes dirt gets down around them
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victoryallis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote victoryallis Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 2023 at 7:14am
Along Shameless’s lines I had to run my 7580 in high for a few years. Big heavy zip tie saved the day.
8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760
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