Pressure plate setting bulletin, engine and steering clutch

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fundytides
430 crawler
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Post by fundytides » Mon Oct 28, 2013 6:32 pm

Lavoy, I have received a copy of a page from a 350 crawler manual dated Aug 73 that says "use the center tang of the gauge marked ENGINE for this check. STEERING notch is used only for 1010 crawler steering clutches." Which is correct for my 40c steering clutches this manual or the earlier bulletin you have shown?

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Lavoy
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Post by Lavoy » Tue Oct 29, 2013 9:05 am

The 350 process is different, use the notch on either side like is shown in the bulletin for your crawler.
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Parts and restoration for antique and late model John Deere crawlers.
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fundytides
430 crawler
430 crawler
Posts: 90
Joined: Sun Oct 27, 2013 8:41 am
Location: Saint John, NB, Canada

Post by fundytides » Mon Nov 04, 2013 11:00 am

Installing my new 40 steering clutch today and have a few questions. (1). How do I "exercise" the clutch before adjustment as directed in the bulletin? (2) On the new pressure plate there are spring clips on the release levers covering the head of the adjustment bolts. I assume I need to remove these but don't see how they come off. Also, should they be reinstalled after adjustment is complete? Thaks for all your help.

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jtrichard
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Post by jtrichard » Mon Nov 04, 2013 12:41 pm

you can put the clutch in a press to "exercise" the pack..the clips pry off from under the bolt head and yes put them back on as they keep the pressure plate tight to the fingers when released
2010 with 622 dozer with mod. 35 ripper and a 2010 with 622 dozer bought in 1969 and a 2010 loader with drott and mod. 36 ripper

ratskinner
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Post by ratskinner » Wed Feb 10, 2016 6:24 pm

How do you adjust them while it in the machine?

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Lavoy
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Post by Lavoy » Thu Feb 11, 2016 12:33 am

Can't be done.
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Parts and restoration for antique and late model John Deere crawlers.
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ratskinner
40C crawler
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Post by ratskinner » Thu Feb 11, 2016 6:04 pm

This is my first crawler .I have a repair manual and it says nothing about adjusting the presser plate .I wish now I would have got on the internet more.
So I am going to have to take it the final drive back off and adjust them. is they away I can adjust them with out the gauge I see on the net ?
Also I am got for sure the fingers can not be touching the throw out any.

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Lavoy
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Post by Lavoy » Fri Feb 12, 2016 9:52 am

Clutch adjustment directions did not appear in service manual til the 350 came out. For all earlier crawlers is came out in a service bulletin that unfortunately the general public never sees. It is however posted in the FAQ's section here.
No, you need the gauge, but they are only $25 and work for engine clutch as well as steering all the way to 350.
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Parts and restoration for antique and late model John Deere crawlers.
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Lavoy
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Post by Lavoy » Fri Feb 12, 2016 10:00 am

Just read you post on YT, my additional bet is that depending on who you bought the discs from, you have the wrong discs.
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Owner and moderator www.jdcrawlers.com

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Paul Buhler
350 crawler
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Re: Pressure plate setting bulletin, engine and steering clutch

Post by Paul Buhler » Mon Dec 04, 2017 6:01 pm

Just helped a friend adjust his steering clutch plate fingers. A thin 7/16" wrench is needed to adjust the bolt up and down to move the fingers. I found that grinding down a "yard sale" open end wrench worked well. The jam nut is 1/2" and a common open end wrench fits fine. Paul
Paul Buhler
Killington, VT
420c 5 roll with 62 blade, FOPS, and Gearmatic 8a winch

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Lavoy
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Re: Pressure plate setting bulletin, engine and steering clutch

Post by Lavoy » Mon Dec 04, 2017 11:05 pm

Years ago when still in the automotive world, I stepped into the MAC Tools truck, and there were these thin little open wrenches. In the old days, they would have been called a tappet wrench probably. Bought three of them on the spot, still using them to this day. They do have a little grinder modification to them, so assuming my warranty is void. :D
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Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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Paul Buhler
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Re: Pressure plate setting bulletin, engine and steering clutch

Post by Paul Buhler » Tue Dec 05, 2017 5:54 pm

On a few of my modified tools, I have a tape label describing what they were reworked to fit because it might be years before I need that configuration again, and with my memory...
I still have a homemade puller from the late 60s that I used for valve lifters that are supposed to be removable with a magnet, but aren't. You never know when it will be repurposed again.
Paul Buhler
Killington, VT
420c 5 roll with 62 blade, FOPS, and Gearmatic 8a winch

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