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Garden Tractors Discussion Forum

Case 446 Garden Tractor

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PaMnd

09-13-2010 18:43:05
74.216.121.72



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Hi:

Just acquired a Case 446 16hp garden tractor with mower deck and hydraulic tiller. What information can you share with me regarding this tractor.

Thanks
PaMnd




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Tom Arnold

09-14-2010 10:24:09
70.26.136.142



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 Re: Case 446 Garden Tractor in reply to PaMnd, 09-13-2010 18:43:05  
You need to purchase an Operator's Manual from an Ingersoll dealer if you do not have one that is specific to the serial number of your tractor.

You should go to the Ingersoll website and print out the correct parts manual for the serial number of your tractor. It's free.

You should understand up front that Case no longer supports these tractors because they sold that division 27 years ago to Ingersoll.

You need to drain the hydraulic system and refill it with 20W50 motor oil. Then change the engine oil and refill with straight 30W. You can use either of those oils in the trans-axle when you change that oil out.

What else do you need to know?

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PaMnd

09-14-2010 20:31:28
74.216.105.213



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 Re: Case 446 Garden Tractor in reply to Tom Arnold, 09-14-2010 10:24:09  
Hi Tom:

Thanks for the link to Ingersoll, at least I now know where to get parts info. I do have the Op manual as that is where I was getting the quote from.

Thanks
PaMnd



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PaMnd

09-14-2010 06:03:56
74.216.86.164



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 Re: Case 446 Garden Tractor in reply to PaMnd, 09-13-2010 18:43:05  
Hi:

John thanks for the reply.

Hold back valve? According to the Op manual tractor has double acting, self energizing, mechanical, contracting band, with drum shaft driven from transmission. Is this part of what you are referring to or is it the RETARD part of the speed selector?

Thanks
PaMnd



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ebbsspeed

09-14-2010 14:37:49
129.179.0.144



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 Re: Case 446 Garden Tractor in reply to PaMnd, 09-14-2010 06:03:56  
The contracting band thing you are describing is the brake. The holding valve prevents the machine from "freewheeling" down a hill, as the hydraulics that came on the early 446/448's didn't have this holding feature. Later versions had it built into the hydraulic control valve, and there are (were?) also available kits to install this valve. Way back in the early 1980's, I think I paid over $300 for a holding valve and the bre-bent tubing to connect it into the system.
There is a Case forum on yahoo groups that has a very good group of folks who are really into these machines, and can answer any questions you may have. They also have a lot of documentation and pictures online. Here's the link to it:
http://groups.yahoo.com/group/casegardentractors/

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PaMnd

09-14-2010 20:43:26
74.216.105.213



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 Re: Case 446 Garden Tractor in reply to ebbsspeed, 09-14-2010 14:37:49  
Hi:

Thanks for the link.

Ok, ""freewheeling" down a hill", that I can understand. The Op manual does mention using the retard for "very slow speed is desired or when operating on an incline to prevent the tractor from over-riding the oil flow, and running free". There is no specific mention of a holding valve but the above description does seem to match.

Thanks
PaMnd



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John D.H.

09-14-2010 04:58:02
69.58.129.92



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 Re: Case 446 Garden Tractor in reply to PaMnd, 09-13-2010 18:43:05  
Biggest thing is as with all equipment- get the manuals and do the servicing on the tractor and mower and you will like it. Question- does your tractor have the hold back valve which is nice if you are doing any mowing on the hills?



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