Clutch parts

John 37A · Sep 12, 2014

The clutch on my 720 isn't snapping like it should. Adjusting was not helpful, so I went ahead and took the pulley off and pulled the clutch apart. My question is, how can I tell what parts are in need of repair? As far as dogs, toggles, t-bolts, and the sliding sleeve. Is there a list somewhere that gives factory specs on these parts?

John

John 37A · Sep 14, 2014

(quoted from post at 23:22:24 09/12/14) The clutch on my 720 isn't snapping like it should. Adjusting was not helpful, so I went ahead and took the pulley off and pulled the clutch apart. My question is, how can I tell what parts are in need of repair? As far as dogs, toggles, t-bolts, and the sliding sleeve. Is there a list somewhere that gives factory specs on these parts?

John

?

RLA · Sep 15, 2014

Most of the time you can see Ware. A good rule
of the thumb, is how far are the adjustment nuts
on the T bolts. If you hafta tight'n them beyond
the cotter key hole, I'd start with new linings.
Floating plates become thinner, but I don't know
what NEW thickness it, compare yours with a New
part, then decide. It's possible toggle dogs &
dog bone are worn, but I'd start with the easy
first. RLA....

Mike M · Sep 15, 2014

Not too far back ? (time flys) a fellow posted pictures of his 630 clutch. A very good picture of the operating sleeve and drive pin that is worn out causing problems.
Maybe you can find that thread and picture. I'd for sure check yours.

John 37A · Sep 15, 2014

(quoted from post at 18:41:59 09/15/14) Not too far back ? (time flys) a fellow posted pictures of his 630 clutch. A very good picture of the operating sleeve and drive pin that is worn out causing problems.
Maybe you can find that thread and picture. I'd for sure check yours.

I searched before posting, I'll try again. Thanks for the lead.

Edit: after reading this post and looking at mine, the hole on my sleeve is wallowed out as well. I'll give this a try and see if symptoms are cured. The previous owner said he had the clutch working good and all of a sudden it quit snapping in and out like it should. This could explain that. Thank you again.

John 37A · Sep 15, 2014

Thanks for the reply. The guy I bought it from just installed new linings and I believe new t-bolts. I haven't pulled the gear off yet, but didn't want to order several hundred dollars in parts by guessing. I believe he put pennies in the sliding sleeve holes to take up some slack. I was hoping there were dimensions somewhere on dogs, toggles and t-bolts so I can do some measuring on mine.

RLA · Sep 17, 2014

OK On my 620, I had the same issue as your having
I never did come up with measurements. But I did
try shimming the toggle's for a test. It Helped
so I bought 3 new ones along with the dog bones.
I check measurements at the time & found no
difference in the length of the dog bones, But
the toggle's did help the clutch.. If you already
have new linings, & floating plates I'm not sure
what else you can do....

Clutch parts

John 37A

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John 37A

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RLA

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Mike M

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John 37A

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John 37A

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RLA

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