440 Steering Clutch

General help and support for your Lindeman through 2010 John Deere crawler
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In to deep
MC crawler
MC crawler
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Joined: Sat Dec 15, 2007 12:10 pm

440 Steering Clutch

Post by In to deep » Tue Jul 15, 2008 4:37 pm

Checking to see if I have a bad steering clutch!
Right steering lever, in order to get the track to disengage you have to pull the steering lever back and takes quiet some effort. The left side easy to pull back and disengages the track with very little effort.
I adjusted the levers end play, to line up the throw bearning with the clutch pressure plate. But right side still takes alot more effort to disengage the tracks.
I broke the throw out linkage recently, and don't want to break it again, I feel I might if it takes that much effort to disengage the tracks.
Was wondering if the pressure plate could be worn out. Looking for any ideas! Thanks

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Tractor 850
430 crawler
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Post by Tractor 850 » Wed Jul 16, 2008 7:08 am

Both levers on my 440 work with only reasonable effort.
It sounds like a linkage binding problem.
Some careful application of WD-40 might free things up.
Be carefull not to get any oil of any kind on the clutch plates.
Very bad things can happen. :shock:
Dave

JD440IC Ser#445235 W/ #63 Dozer
Ford 850 Ser#55497 W/Wagner Loader

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Gil
1010 crawler
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Location: Pennsylvania

Post by Gil » Wed Jul 16, 2008 12:30 pm

Is any of your resistance being caused by the brakes instead of the clutch? If you think it could be, loosen the slotted nut on the brake band until it is very loose. Then pull your steering lever. The throw out bearing should contact the pressure plate arms almost immediately and then start pushing them in. Is that when you are having the resistance? or is it after the throwout has already pressed in the arms?
JD440-ICD loader; JD440-IC bulldozer; JD440-ICD backhoe; JD440-I backhoe; JD440-I tractor; + five recumbent JD440-ICs

Ray III
2010 crawler
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Post by Ray III » Wed Jul 16, 2008 10:21 pm

More specifically, the steering levers should move about an inch back and then the throwout bearing contacts the fingers. If not, you need to adjust the position of the throwout bearing.

If the throwout bearing disengages the clutch fine, but you have a hard time steering, tighten up the brake band so it applies just when the clutch is almost fully released. As the brake lining wears down you can run out of steering lever travel before the brake comes on hard enough.

You definitely don't want to force things, that's how I ended up inside my steering clutch last spring!

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