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Front mount pump, Hydraulic reservoir? Loader controls?

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Adam

05-08-2001 07:30:39

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My 9N came with a loader but no pump or control valves, I bought a used front pump and am now mounting it. My questions are: #1. Can I tap into the tractors existing hydraulic reservoir? #2 Where can I purchase a dual loader valve with 1 single acting, 1 dual acting, reasonably priced.
Thanks.

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bj/8N/mt

05-09-2001 07:03:03

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Re: front mount pump, Hydraulic reservoir? Loader controls? in reply to Adam, 05-08-2001 07:30:39

For hydralic parts I have had good luck at Surplus Center. Phone 800-488-3407. Free catalogue. They can build you about anything you can imagine in a multi spool Prince and have Gersen and others in stock. Expect to pay a hundred and a half for a two spool valve. You can get by cheaper with two seperate valves.

As for using the tractor hydralics you will get cycle times you measure with a calander rather than a watch. You say you have a front mount pump why not use it.

Your mileage may vary

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Rick Petrie

09-26-2002 14:27:44

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Re: Re: front mount pump, Hydraulic reservoir? Loader controls? in reply to bj/8N/mt, 05-09-2001 07:03:03

I have a backhoe that is attached to my AC D-17. I have a hydralic leak and am looking to get the valve bady rebuilt. I need to know where I can send it to get it rebuilt? Can any one help me?

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Big Mike

05-08-2001 21:52:48

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Re: front mount pump, Hydraulic reservoir? Loader controls? in reply to Adam, 05-08-2001 07:30:39

If you can find a valve off an old forklift they are single acting on one spool double on the other. make shure it has the pressure relief built in. If not you will need to use a remote pressure relief valve... A double acting valve can be used for a single acting cyl by running the unused port on the valve to the tank..

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Dell (WA)

05-08-2001 11:37:02

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Re: front mount pump, Hydraulic reservoir? Loader controls? in reply to Adam, 05-08-2001 07:30:39

Adam..... ..Errin explained it pretty good.

The N-Tractor internal hydraulic pump output can only be accessed by chaining down the real 3-point arms so that the hydraulic pressure test port in the corner of the pump plate has pressure diverted to it and then you plumb to the hydraulic stuff.

The internal hyd pump is a weak sister, about 2.5 gpm at 1700 psi and only works if the clutch is out and the PTO is engaged, that means the minute you step on the clutch, your bucket drops!!! The pully stinger driven frontmount hydraulic pump runs all the time your engine does and pumps about 10 gpm at 2500 psi.

Most loaders use the hollow frame tubes as hydraulic reservoirs.

As attractive as it might seem, using the internal N-Hydraulic pump leaves a lot to be desired. ..... ...Dell

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Errin OH

05-08-2001 08:59:12

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Re: front mount pump, Hydraulic reservoir? Loader controls? in reply to Adam, 05-08-2001 07:30:39

Adam, My experances (53 NAA). You can tap in to the tractor hydraulic system but, there are some draw backs. I used the single tap way where you have to tie down the 3pt lift arms. 1) It will be slow. I beleive this has to do with the flow rate of the factory pump. 2) Very limited control. Basicly it will either be going up or going down there is a very fine line for stop and hold, but you can overcome it by closing the valve. 3) Limited lift. Using the factory vane pump I can lift approx 300-400lbs. Thats not much when trying to move a lot of dirt. 4) Only 1 way control, power up, gravity down. Bucket - manual trip. 5) Loss of 3pt. You have to tie down the 3pt lift arms. You lose the 3pt when loader in use. 6) Very time consuming. You have to stop, tie down, to go from rear blade to loader control and then untie to go back to blade. However, I have heard of people taping in and getting two-way control, but I do not know how to and did not do it that way. As far as controls - For around $200 you can get a dual 2-way controls. One of them sould have a plug you remove to convert it to single or 1-way control. I got one for my backhoe from TSC not to long ago. Farm and Fleet has them but are 30-40$ higher in price.

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