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Case Tractors Discussion Forum
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some more LA questions

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combinekid

03-08-2008 23:38:09




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Well I worked on my LA most of the day today and evening. I now have it all most ready to take on its first test drive. The only thing lacking is to put the front hubs on (once my bearings come in next week at the local bearing house). Once the hubs are on, then the front and rear tires can go on and she's ready for a test run. With the tranny finnally all back together and full of oil and the tractor sitting on blocks I fired it up and ran it through all its gears and tried out the clutch, belt pully brake, hand brake, pto etc. All seem to work great but when the tractor is in gear there is some deffinate gear noise coming from the tranny. I remember from reading other posts that this comes from worn belt pully shaft bearings, or input shaft bearing. (yes I know I should have replaced them when I had the tranny apart and the sliding gear shaft out for replacement, but in the intrest of saving some money I didn't) I did have the input shaft out when I put a new seal on it and that double ball bearing was in great shape. I did put new bearings on the sliding gear shaft when it was out. My question is can I replace the belt pully shaft bearings with the shaft in the tractor? I know they are press fit but was wondering if anybody knew of some sort of a puller that would be able to pull them out through the sides of the tranny. Next question is has anybody ever made some sort of seal to replace the inner front wheel hub seals? CaseIH wants $129 bucks for one! I thought that I could make one out of a couple large square cut o-rings like what are used on spin on oil filters or something. I would glue the o-rings to the origional metal backing. Out of four hubs that I have I only have one good seal. Also which way are the seals installed? Some that I took apart were rubber part in, and the others were the opposite. Final question is should I go 6 or 12 volt on the electrical system? I was leaning towards 6 volt cause it is origional but I have never used anything that was 6 volt and have heard that they often don't crank over very fast. Thanks a bunch for all the help.

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Don Rudolph

03-09-2008 11:22:12




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 Re: some more LA questions in reply to combinekid, 03-08-2008 23:38:09  
Sorry I can't be of more help, but here is my 2cents worth: Go with 12 volt system. Six volt does work if everything is up to snuff, but it usually isn't. A big 12 volt battery will wheel that big engine over a lot faster and chances of starting increase greatly. Another advantage is that you don't need the super large starting cable with 12 volt. There is a good reason why so many people go through the trouble of conversion. I always wonder why it took so long for the tractor companies to switch. Don

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mEl

03-09-2008 11:21:47




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 Re: some more LA questions in reply to combinekid, 03-08-2008 23:38:09  
Sorry to disagree with you on this one Walt but the rubber goes toward the spindle and runs on the flat vertical area behind the rear bearing surface. Have replaced many of these in my working career as they were not only used in Ag applications but also in early 580 - 680 hoes with the utility axle. They would serve no purpose the other way as there would not be anyting for the rubber to seal against. The large square rubber seal compresses against the surface of the spindle and forms a dirt seal. Many customers would drill and tap 1/8 pipe and install a grease fitting in the outer cap to flush dirt out of the rear seal area.

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Walt davies

03-09-2008 10:21:44




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 Re: some more LA questions in reply to combinekid, 03-08-2008 23:38:09  
Man you got a lot of question. the seals go rubber in to keep the grease in. I would take one to a place that sells seals and bearings you should have one close by. They can match it up and save you a bundle on them.
Bearing sometimes if not specially made you can also save on.
Walt



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