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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

JD350B oil on steering clutches

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jtilson

09-03-2004 09:33:37

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Pulled the clutches last night because it wouldn't turn either way. Some of the disks seemed to have some oil or scum on them but couldn't really tell where it is coming from.

Anybody know what I should check?

Also, I had adjusted the cluthe levers as far as they would adjust and it didn't seem to do any good. There was no pressure on the pressure plate but the fingers didnt seem to be much out of adjustment. Is there something else that could have slipped in the adjustment linkages? I mean the levers were coming all the way back with not any tension on them I have doubts that they were even moving the throughout bearings at all inspite of going through the correct procedure for adjusting thewm..Composite disks didnt seem to be worrn much either..

Zny suggestions?

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SteveB

09-07-2004 04:52:10

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Re: JD350B oil on steering clutches in reply to jtilson, 09-03-2004 09:33:37

Check to see that the clutch housing is not cracked up in the corners where it is bolted to the trans. Use engine cleaner and wipe ou the housing good. If any of your control valve fittings or pwr steering lines are leaking, they will find a way into the housing through the hair line cracks. Also check that the quill seal is good going into the trans. The most common places that will leak are. Inspection cover gasket on top, Quill seal to trans , from the final itself, Or the cracks as I described. Change all the seals and gaskets to start and than look for cracks.

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Russ Stroot

09-03-2004 19:04:32

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Re: JD350B oil on steering clutches in reply to jtilson, 09-03-2004 09:33:37

I had a similar problem on my JD 450B. In my case the cap screw (HS, SAE 8, 3/8 x 4-1/4") threads were stripped & when I pulled on the steering lever it wasn't disengaging the clutch. My local dealer told me there is too much stress on that bolt & they learned years ago to put two nuts on the bolt. Hope this helps

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PD Mechanical

09-03-2004 13:47:39

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Re: JD350B oil on steering clutches in reply to jtilson, 09-03-2004 09:33:37

Hard to say without seeing anything but the brake bands must also be adjusted properly. The pressure plate should release the clutch just before the brake engages. Also if there are notches worn into the brake drum splines where the steel discs contact them, the discs will "hang up" in the notches and not release. The same goes for the fiber discs as well.

P&D Mechanical

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Pete/ME

09-04-2004 03:27:32

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Re: JD350B oil on steering clutches in reply to PD Mechanical, 09-03-2004 13:47:39

Have the same problem with my straight 350. (I thought 'b's had wet clutches.) Pulled the finals last year, disks were cruded up with oil and rust, cleaned them with a finish sander and brake cleaner, gave them to Deere to put back together, replaced the seal when I reassembled and adjusted brake according to the S.M.. They don't seem to be disengaging, but the machine turns with the brake if I really yawn on the levers. Guess this winter I'll brake them down again and have Deere rebuild both sides with new disks. I made a copy of the adjuster gizmo (Old stop signs have their use.), but I'm assuming that Deere adjusted them properly. Any suggestions would be appreciated.

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Harold Brunton

09-05-2004 07:35:31

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Re: JD350B oil on steering clutches in reply to Pete/ME, 09-04-2004 03:27:32

Can't remember for sure but I think that there is a shaft that runs vertically that the throw out bearing is actuated from, It is connected to the linkage outside the steer clutch housing, check this shaft, i believe that the collar that the throwout bearing is on is keyed to the shaft, i have seen the key and/or the key way go south. The yoke i guess you would call it has a bolt going through it, make sure that it is tight, this clamps the yoke to the shaft, I may be wrong here but i think that is how it works, i will have to get to work and look in a service manual. wet clutches didn't start til the "C" models. If you are getting oil on them it is probably coming from the trans case, there is a seal and a o-ring on the bearing quill(bearing housing, bearing retainer) thatholds the ring gear in place, I don't remember if these are blind holes or not, if they are make sure to use the correct length bolts if they are not, be sure to use loctite on them

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