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John Deere Tractors Discussion Forum
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'72 John Deere Type A backhoe....

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Larry Leggo

12-11-2003 09:13:43




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Need some help here... Does the Type "A" have an internal or external hyraulic pump?? Thanks, folks.




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Brokenwrench

12-11-2003 16:20:59




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 Re: '72 John Deere Type A backhoe.... in reply to Larry Leggo, 12-11-2003 09:13:43  
The main hydraulic pump is mounted to the front of the engine and driven by the crankshaft. There is a second "charge pump" that is inside the trans/differential case that pumps oil from the transmission to the main pump and lubricates the trans. and supplies pressure for the foward/reverse. It has to pump a good flow of oil to the main pump to have all of your hydraulic functions.



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larryswelding

12-12-2003 03:48:54




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 Re: Re: '72 John Deere Type A backhoe.... in reply to Brokenwrench, 12-11-2003 16:20:59  
Thanks, Brokenwrench.....That's what I needed to know



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