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AC 655 Shuttle Clutch

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Mikeys250 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikeys250 Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 2019 at 7:46pm
Yeah whatever screen there is in this system.

Update
I checked pressure, couldn’t get over 150psi and mainly hovered around 100psi. It jumped around a good bit.
I changed the fluid because it looks like it may have a little water in it. Changed the filter and tightened all the band clamps on the rubber boots. Filled it back up let it warm up and put it in gear. Now I can barely get over 50psi???
I thought it may be air in the line so I let it run for about 15 minutes then I Moved back and forth for about 15 minutes and the result didn’t change.
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Randaleky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2019 at 7:13pm
you talking about the suction screen on the return line or what ?
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Mikeys250 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikeys250 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2019 at 3:46pm
I know where the filter is but how do i get to the "screen"
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Randaleky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2019 at 1:59pm
also, rather than dropping the belly pan , run it till it gets to slipping and check the pressure and then tighten the clamps on the return suction line. look down the left side of the convertor tube and you will see it and the clamps . should fix it .
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Randaleky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2019 at 1:53pm
be sure to check the suction line after it gets hot. most likely the problem .
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Mikeys250 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikeys250 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Sep 2019 at 5:43pm
So I checked the shuttle pressure and I can only get up to 150psi at wide open throttle. I drug the bucket and loaded it up and it jumped to 175ish one time.

Looks like a am going to change fluids and filters and see what happens before I do clutches.
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Mikeys250 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikeys250 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Sep 2019 at 5:41pm
David
Steiner tractor has all the parts I needed.
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david a View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote david a Quote  Post ReplyReply Direct Link To This Post Posted: 30 Sep 2019 at 4:08pm
good place for parts redoing one in my 816 was told none available. found this companythey still have some of the parts  sales@joseph.com
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Randaleky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 2019 at 9:31pm
since it works very strong till it gets hot , it is not the clutches. Jim is right. suction line or pump , and check the filter for starters .
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Big Jim View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Big Jim Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 2019 at 6:04pm
I think the clutches are alright. It sounds to me like when everything gets
hot the pump is sucking air on the return line. Check pressure when hot. then
check the rubber hose at the end of line next to the transmission. I think
this is where your problem is.
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Mikeys250 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikeys250 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 2019 at 4:05pm
Also it’s weaker in reverse than forward when it starts slipping which is another reason I am ASSUMING the pressure is good.
The manual gives me directions on checking pressure so I will check it just to be sure. I was wrong one time before lol.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikeys250 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 2019 at 4:02pm
Thanks for the replies.

I haven’t checked the pressures. It runs strong for the first 20-30 minutes till it gets hot. I’m pushing trees on a hill so I’m running it hard. I know it’s slipping because I can hear it and I can idle down, get it to catch and then idle up and pull.
Any tips on splitting it?
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Randaleky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2019 at 10:32pm
must be split . 6 inch plate on side where lines go in but too small for shuttle removal .
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Post Options Post Options   Thanks (0) Thanks(0)   Quote NomoreJohnDeere Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2019 at 8:42pm
you got a good deal 
I know skwat but wonder if clutch/shuttle can be pulled without splitting.........
does it have a plate you can remove and take a look?

HD3
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Randaleky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2019 at 8:14pm
does unit move in either direction? oh by the way welcome to the forum . Nice looking loader. I have Hd4 dozer and track loader . Hope I can help you .
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2019 at 8:09pm
Have you checked the pressure to the shuttle shift valve ? or the filter up front behind the screen ? any leaks of convertor oil on the ground ?
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Mikeys250 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mikeys250 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2019 at 3:14pm

New to the forum and new to owning a dozer. I picked up this 655 Track loader for $3k not to long ago, it runs great but it needs a shuttle clutch. I have the parts and the service manual and Im pretty mechanically inclined so I am going to tackle this one on my own.
So what i was hoping for is somebody has some pics or videos or just tips on splitting the case to get to the clutch out. Thats the only part Im really concerned with. I have searched for a while trying to find any videos on splitting a dozer/crawler and can not find anything.

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