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Allis d15 power director repair/adjustments
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1950AllisWD View Drop Down
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Joined: 04 Jan 2025
Location: Iowa
Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1950AllisWD Quote  Post ReplyReply Direct Link To This Post Topic: Allis d15 power director repair/adjustments
    Posted: 09 Mar 2025 at 4:56pm
I'm getting into the power director on my d15. Figured while it was split I would go through it and verify it's adjusted correctly. I haven't had a ton of issues with the PD popping out of gear. It has popped out of the high side on occasion but only when it's really cold and the PD compartment was way over full with oil caused by bad clutch shaft seals.

Going off the measurements called out in the service manual I would guess the clutch packs don't have a ton of life left in them?
The manual states the shim stack should start with a .085" stack on the low side, .085" stack on the high side and a .035" stack in the middle, equaling out to .205" total. The current stack is .058" on the low side, .062" on the high and .067" in the middle, equaling .187". .018" shy of the required .205". The difference between the engaged and disengage measurements between the preload and pressure plates is .022" on the low side and .033" on the high side. Manual calls for .042"-.046". Do I pull shims from the outsides and install shims in the middle to bring those number up to where they need to be? Or am I looking at replacing the clutch disc's? The high side discs have also worn into the rear clutch hub splines pretty bad. There is also some wear on the detents in the preload plates. Could this be the reason for the smaller overall shim stack thickness? Just looking for some advice on what direction to go with this.
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DrAllis View Drop Down
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Points: 21112 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2025 at 5:12pm
Some ignorant individual has been working on it !! The grand total of .205" MUST BE MAINTAINED !!!  This insures full stroke on the hand lever and 100% release and 100% full engagement of both clutches. LONG shims only must be used in the center. SHORT shims only must be used in the other two locations. Your two ramp plates where the rollers operate are SHOT and this causes jump out. The two drive hubs where notches are carved into the hub teeth are junk. The driving discs teeth are badly worn. Personally, I have never seen a Power Director clutch in as terrible of shape as this one is. I wouldn't fix it. Find a good USED one and get on with life.

Edited by DrAllis - 09 Mar 2025 at 5:14pm
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1950AllisWD View Drop Down
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Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1950AllisWD Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2025 at 5:15pm
Thanks for the reply. I was kind of afraid of that. Looks like the last guy in there was just doing whatever it took to limp it along.
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Lynn Marshall View Drop Down
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Joined: 13 Sep 2009
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Points: 2319 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lynn Marshall Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2025 at 9:54pm
I would agree with the overall condition of that clutch assembly. I would certainly hope that there are better ones available in salvage yards, or forum members.
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1950AllisWD View Drop Down
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Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1950AllisWD Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2025 at 11:44pm
It looks like a d17 powerdirector shares some of the same components with a d15. Looks like the clutch disc's are the same along with the preload plates. Would the shims and drive hubs interchange as well?
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1950AllisWD View Drop Down
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Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1950AllisWD Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2025 at 11:50pm
A screenshot of an older post on a d17 power director repair.
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IBWD MIke View Drop Down
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Joined: 08 Apr 2012
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Points: 3888 		Post Options Post Options   Thanks (0) Thanks(0)   Quote IBWD MIke Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2025 at 6:22am
There were 3 D-15 power directors on a hayrack at the auction I went to Saturday. Bad timing I guess. Didn't even watch them sell.
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DrAllis View Drop Down
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Points: 21112 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2025 at 6:26am
Any D-17 PD clutch is 4 discs in low range (front) and 3 discs in high range (rear). So a good many of the parts are the same except when it comes to anything related to the front clutch section. So, the hub is wrong and any of the long linkage parts and small return springs and maybe the front housing itself. Discs and plates and shims all interchange. The ramp plates are normally the only parts that get replaced for jump out issues. Maybe the rollers too.  D-14 and D-15 clutches are identical.
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1950AllisWD View Drop Down
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Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1950AllisWD Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2025 at 9:53am
Are both ramp plates on the d17 clutch the same?
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Yes. What I call the ramp plate is the plate that the roller levers roll thru the pockets to engage the clutch.
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1950AllisWD View Drop Down
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Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1950AllisWD Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2025 at 4:14pm
So a d17 PD would also be a viable option for ramp plates and a rear drive hub. I'll have to see what I can round up.
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Mikez View Drop Down
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Points: 8535 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikez Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2025 at 7:55pm
Get yourself parts books and compare part numbers
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1950AllisWD View Drop Down
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Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1950AllisWD Quote  Post ReplyReply Direct Link To This Post Posted: 14 hours 45 minutes ago at 11:26am
Looks like the part number for the two ramp plates on the d15 clutch is 0230015.
The rear clutch hub is 022807.
Does anyone have a d17 parts Manual handy they could share a picture of? The reason I'm so interested in the d17 clutch is there is one on ebay for $100. The guy is going to send me some pictures of the rear drive hub and any wear present on the ramp plates tonight. ASAP tractor parts has ramp plates listed on there website as fitting the d14, d15, and d17. So if both ramp plates are the same in the 17 clutch then this clutch may be a good parts candidate.
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Mikez View Drop Down
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Points: 8535 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikez Quote  Post ReplyReply Direct Link To This Post Posted: 13 hours 33 minutes ago at 12:38pm
Agco parts website you can view them
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