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David G
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Joined: 11 Jan 2008
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 Posted: Tue Feb 05, 2013 6:21 pm Post subject: 4020 syncro transmission pump. |
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I have heard stories on the importance of a good transmission pump. I have heard its only purpose is to stuff the main pump, so pressure delivered is not that important.
What do you think.
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Bob
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Joined: 03 Jan 1998
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| Posted: Tue Feb 05, 2013 10:41 pm Post subject: Re: 4020 syncro transmission pump. |
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FLOW would be the issue, at low pressure. It lubes the tranny and ring and pinion and bearings, as well as feeding the main hyd pump.
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buickanddeere
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Joined: 31 May 2003
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| Posted: Wed Feb 06, 2013 6:37 am Post subject: Re: 4020 syncro transmission pump. |
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Provides pressure for pto clutch and brake. Oil for brakes. Pumps oil up to the cooler .
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Tx Jim
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Joined: 14 Feb 1999
Posts: 13131
Location: Coyote Flats,Tx
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| Posted: Wed Feb 06, 2013 9:21 am Post subject: Re: 4020 syncro transmission pump. |
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| buickanddeere wrote: | | (quoted from post at 09:37:53 02/06/13) Provides pressure for pto clutch and brake. Oil for brakes. Pumps oil up to the cooler . |
4020 brakes hyd oil is supplied by main hyd pump. This was one of the hydraulic advantages of rowcrop over utility tractors. 4020's prior to 1969 had manual operated pto clutch & pto brake. PTO clutch/brake on syncro-range after SN was supplied by main hyd pump
Last edited by Tx Jim on Wed Feb 06, 2013 9:27 am; edited 2 times in total |
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