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Case Tractors Discussion Forum
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Case D450 Transmission

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Wideglide

12-20-2007 14:31:18




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I had my 1970 Case d450 dozer out today moving some dirt and noticed something. When pushing down hill it works fine. Sometimes when backing up the trany slips until I go forward a little and then hit reverse and then it will go. The fluid is full and doesn"t seem to be loosing prime because it goes forward fine. It only does it on a speep incline under load and rarly does it on the level. Any ideas? Thanks Mike

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george md

12-21-2007 15:17:04




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 Re: Case D450 Transmission in reply to Wideglide, 12-20-2007 14:31:18  
Before I would splurge on a charge pump , I

would check the oil control rings on the

front and back of the clutch shaves . Usually

when you have a charge pump problem ,direction

of travel doesn't matter . If you are having

trouble when you face the tractor up hill, then

the problem is most likely a leak in the sump

line above the standing oil level.

If this doesn't solve your problem , send me

an email with a phone # and I'll call you.

george

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Wideglide

12-21-2007 15:27:58




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 Re: Case D450 Transmission in reply to george md, 12-21-2007 15:17:04  
Thanks George, Where are the Clutch shaves?
Mike



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george md

12-21-2007 15:37:38




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 Re: Case D450 Transmission in reply to Wideglide, 12-21-2007 15:27:58  
Are you going to be there later ? If so send me a phone # in the email helper and I'll call you. I'm going to the house for a couple hours and I'll be back later.

george



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fred goodrich

12-21-2007 04:43:13




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 Re: Case D450 Transmission in reply to Wideglide, 12-20-2007 14:31:18  
Sounds like it is time for a charge pump located up on the engine. They are available at 6076423293.



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Wideglide

12-21-2007 05:32:00




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 Re: Case D450 Transmission in reply to fred goodrich, 12-21-2007 04:43:13  
Thanks Fred, Do you think its the charge pump ?
Just wondering because with the frontend down hill i didn't think it would loose its prime. I just don't understand how it works I guess. Can you tell me why its acting like it is? How much are these pumps?
Thanks Mike



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