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Case Tractors Discussion Forum
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David Brown 990 Deisel

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David Zweigenba

11-21-2005 16:43:49




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Not knowing were to send this.. I have many questions about my tractor. #1. I have a two stage clutch the first half or 3/4 of travel is shifting gears the end is for the PTO. I can't engage the PTO. Do I have replace the whole cluch or part of it with out splitting the tractor. #2. I don't have the oil filter shown in the book. I have a disk type of cover pritty even with the pan, when I remove it there is a stem with a magnet on it. Why is mine different?

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baz

11-22-2005 22:03:23




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 Re: David Brown 990 Deisel in reply to David Zweigenbaum, 11-21-2005 16:43:49  
First thing to do with your clutch; through the inspection plate at the underside of the clutch housing, look for 3x internal hex screws with lock nuts that protrude from the clutch cover. They are on the outside of the spring caps. Loosen the lock nut, turn in the screw until it touches the pressure plate [ goes firm- but dont overdo it], then back out the screw 1 1/4 turns. Do all three screws. As the transmission plate wears you end up with more pedal movement in the trans section and not enough for the pto. This is something that every few years needs adjusting. Set pedal free-play to one inch. If this fails then you will need to split the tractor. The clutch lugs wears where the levers pivot. That slop has to be taken up when the pedal is pushed. I guess you are asking about the hydraulic filter? The early models had a shallow, almost flat, pan with a ufo looking screen, with a magnet in the centre of the spout. The later models had a deep pan with a paper filter plus a screen pushed into the end of it. If the paper filter blocked, oil could pass through the metal screen so the pump would not starve. Barry.

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kyhayman

11-22-2005 18:48:24




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 Re: David Brown 990 Deisel in reply to David Zweigenbaum, 11-21-2005 16:43:49  
Sounds like a cartridge type filter goes in there. Seems like it is a 31515 Wix but I could be wrong. For the clutch, whole thing has to come out, PTO stage is the front one. If I recall correctly they can be changed without a split but its usually easier to split than go through what you have to do to get it out from the top.



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