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d7 steering clutchs by clogs

d7 steering clutchs by clogs

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clogs
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we have probs with left hand steering clutch,
stripped out left side clutch, the coupling assembley
has sheared off on splieng cone appox two ins from
stud that holds it two the cross shaft that holds
the crown wheel, question iscan you or can you not
get the crown wheel out and the shaft without removeing
the gearbox becos of the pto shaft.

your input could save me time

many thanks clogs
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Tue, May 19, 2009 2:50 AM
gemdozer
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Yes you can removed the bevel gear without removed the transmission but you need to removed the shaft from the bevel gear first.
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Tue, May 19, 2009 4:48 AM
Old Magnet
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Reply to gemdozer:
Yes you can removed the bevel gear without removed the transmission but you need to removed the shaft from the bevel gear first.
Info I have (Service Manual) states the transmission has to be removed first (because the pto shaft would interfere as you suspect) with access to the bevel gear bolts.
Both steering clutches need to be removed so you can maneuver the bevel gear shaft to get it out.
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Tue, May 19, 2009 7:50 AM
edb
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Reply to Old Magnet:
Info I have (Service Manual) states the transmission has to be removed first (because the pto shaft would interfere as you suspect) with access to the bevel gear bolts.
Both steering clutches need to be removed so you can maneuver the bevel gear shaft to get it out.
Hi Team,
if the Trans top(PTO) shaft has been modified as per the S/M April 5 1949 the B/Gear can be removed as gemdozer has stated. If it has not been modded I would think some deft shielding and grinding and clean out would overcome the need to rem/refit the trans.
Hope this helps.
Cheers,
Eddie B.
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Tue, May 19, 2009 8:16 AM
Old Magnet
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Reply to edb:
Hi Team,
if the Trans top(PTO) shaft has been modified as per the S/M April 5 1949 the B/Gear can be removed as gemdozer has stated. If it has not been modded I would think some deft shielding and grinding and clean out would overcome the need to rem/refit the trans.
Hope this helps.
Cheers,
Eddie B.
That works for the D6......but I thought the post was about the D7??
Does the same apply?? I'm reading from the 17A Service Manual.
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Tue, May 19, 2009 11:53 AM
Old 3T lover
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Reply to Old Magnet:
That works for the D6......but I thought the post was about the D7??
Does the same apply?? I'm reading from the 17A Service Manual.
[quote="Old Magnet"]That works for the D6......but I thought the post was about the D7??
Does the same apply?? I'm reading from the 17A Service Manual.[/quote]

Also works on the D-7's but you also have to notch the bevel gear shaft on the D-7's.

Between 2 bolt holes on the bevel gear shaft cut a "V"(more like a square 90 degree corner) and this, along with cutting the bevel on the top transmission shaft with allow you to remove the rearend shaft without removing the transmission.
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Tue, May 19, 2009 3:05 PM
edb
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Reply to Old 3T lover:
[quote="Old Magnet"]That works for the D6......but I thought the post was about the D7??
Does the same apply?? I'm reading from the 17A Service Manual.[/quote]

Also works on the D-7's but you also have to notch the bevel gear shaft on the D-7's.

Between 2 bolt holes on the bevel gear shaft cut a "V"(more like a square 90 degree corner) and this, along with cutting the bevel on the top transmission shaft with allow you to remove the rearend shaft without removing the transmission.
Hi OM,
yes, OM you are correct here, I got side tracked whilst looking for something along the lines as posted by Old 3T lover, but I had an idea it was a notch cut out in the bevel gear removal aperture, this in addition to removing the Steer Booster drive gear and spacer from the PTO shaft, all too long ago and too many different models of machine at The Dealer in 43 years of service.
I'll keep looking.
Maybe also loosening the trans. and shuffling it askew could get the clearance needed--we have ALL found that Yellow Father is not always correct in his R&R methods--us mechanics could be devious to "get 'er done" without onsite cranes etc back in the day.
OM thanks for the correction.
Cheers,
Eddie B.
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Tue, May 19, 2009 3:57 PM
Old Magnet
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Reply to edb:
Hi OM,
yes, OM you are correct here, I got side tracked whilst looking for something along the lines as posted by Old 3T lover, but I had an idea it was a notch cut out in the bevel gear removal aperture, this in addition to removing the Steer Booster drive gear and spacer from the PTO shaft, all too long ago and too many different models of machine at The Dealer in 43 years of service.
I'll keep looking.
Maybe also loosening the trans. and shuffling it askew could get the clearance needed--we have ALL found that Yellow Father is not always correct in his R&R methods--us mechanics could be devious to "get 'er done" without onsite cranes etc back in the day.
OM thanks for the correction.
Cheers,
Eddie B.
Notching the bevel gear mounting flange???.....not on my tractor your not😮 😮 Maybe a slight nick in the case🙄 🙄
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Tue, May 19, 2009 10:29 PM
Old 3T lover
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Reply to Old Magnet:
Notching the bevel gear mounting flange???.....not on my tractor your not😮 😮 Maybe a slight nick in the case🙄 🙄


30+ years ago, if you bought a new one from CAT, it came with one already cut in it.....with a torch, no less.....who needs a stinking milling machine.
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Tue, May 19, 2009 10:53 PM
Old Magnet
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Reply to Old 3T lover:


30+ years ago, if you bought a new one from CAT, it came with one already cut in it.....with a torch, no less.....who needs a stinking milling machine.
Wow, didn't need to hear that....if that's the case...so much for Cat quality control. Can't believe they would go to great lengths to specify stress relieved shafting, machine it in a way to minimize stress concentrations then cancel it all with a torched notch. I would consider such a part to be defective...to be used only in an emergency...if at all. Kind of questions the design in the first place.
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Wed, May 20, 2009 1:24 AM
edb
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Reply to Old Magnet:
Wow, didn't need to hear that....if that's the case...so much for Cat quality control. Can't believe they would go to great lengths to specify stress relieved shafting, machine it in a way to minimize stress concentrations then cancel it all with a torched notch. I would consider such a part to be defective...to be used only in an emergency...if at all. Kind of questions the design in the first place.
Hi Team,
found this Serv. Bull. Sept 27 1956 article for a heavier Bevel Gear Shaft for both D6 & D7 tractors.
It tells of loosening the top shaft bearing cage bolts 3/16" to gain clearance for the BG shaft R&R. If the shaft was slid forward further than this the rear bearing rollers would disengage the outer race and possibly not be able to be reinserted with a worn bearing cage not holding the rollers just so.
Hope this is of help.
Cheers,
Eddie B.
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Wed, May 20, 2009 6:53 AM
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