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Question for Tom Arnold

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Author  [Modern View]

04-16-2013 07:02:41

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I posted a question a while back about a hydraulic pump for 444. I bought a D27AA2A but the shaft is 1/2 inch. My old one is 5/8. Do I take the pump back? Is the pump volume OK? Is there another coupler that will adapt to the engine?

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Tom Arnold

04-16-2013 10:03:26

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 Re: Question for Tom Arnold in reply to Kirk-Tx, 04-16-2013 07:02:41  
As Ken has already stated, the correct coupler half can be had from McMaster but you should replace the spider at the same time.

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04-16-2013 10:09:44

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 Re: Question for Tom Arnold in reply to Tom Arnold, 04-16-2013 10:03:26  
Is it the correct pump as for as output? Thanks for your replys.

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Tom Arnold

04-16-2013 12:25:15

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 Re: Question for Tom Arnold in reply to Kirk-Tx, 04-16-2013 10:09:44  
The D27 pump is .61 cubic inches in size and will pump 9 1/2 GPM @ 3600 RPM and zero PSI. It it the largest AA pump made that I am aware of and Case used it because of space constraints. I have recommended this pump to about 20 people and everyone is quite happy with it.

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04-16-2013 20:32:45

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 Re: Question for Tom Arnold in reply to Tom Arnold, 04-16-2013 12:25:15  
Thanks, I'll get the fittings and hook it up. I appreciate your advise.

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ken combs

04-16-2013 08:11:14

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 Re: Question for Tom Arnold in reply to Kirk-Tx, 04-16-2013 07:02:41  
I'm not Tom, but you can purchase just the pump half for the coupler and install the pump. I get mine from Mcmaster-carr.

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