Hydraulics

[Mick up North]

Ok guys, I have a couple of questions for ya. I plan to add a hydraulic pumping system to my 8N similar to what Zane and Hokie offer but do I stick with the gear oil thats in the tranny/pump or do I switch to a hydraulic oil. Also I was planning on mounting an old power steering pump to run off the fan belt, but will it do the job or do I need a proper hydraulic pump?
I would really appreciate some advice. Thanks.

 

[duey]

The guys seem to be just running the standard transmission oil.... and I'm not sure a PS pump has the volume to make much difference. Search the archives, there are a number of articles and discussion on this subject.

Hokie has done quite a bit of research and freely shares his info.

You're free to 're-invent the wheel' if you like....

duey

 

[souNdguy]

I've seen PS pumps used like that.. but they will want hyd oil, utf, or PS/ATF fluid..so either make a seperate sump for the PS pump and run one of those fluids in it.. or if you use the N as a sump.. convert the N over to the UTF fluid.

soundguy

 

[ebooth]

I new a fellow one time used one on his 4-wheel drive to lift his snow blade. It worked well for the aplication but it was ownly good for 100Lb. max.
Cheers
ebooth

 

[ebooth]

If there is any confusion I mean 100Lb's hydrolic presure
Cheers
ebooth

 

[TheOldHokie]

(quoted from post at 02:07:37 01/18/09) I've seen PS pumps used like that.. but they will want hyd oil, utf, or PS/ATF fluid..so either make a seperate sump for the PS pump and run one of those fluids in it.. or if you use the N as a sump.. convert the N over to the UTF fluid.

soundguy

Cannot use a seperate sump if he's doing live hydraulics with it. It has to "withdraw" from the N's sump at the same rate it "deposits" into it....

TOH

 

[TheOldHokie]

(quoted from post at 01:46:53 01/18/09) Ok guys, I have a couple of questions for ya. I plan to add a hydraulic pumping system to my 8N similar to what Zane and Hokie offer but do I stick with the gear oil thats in the tranny/pump or do I switch to a hydraulic oil. Also I was planning on mounting an old power steering pump to run off the fan belt, but will it do the job or do I need a proper hydraulic pump?
I would really appreciate some advice. Thanks.

I did a little checking and I think most PS pumps typically produce 800-1000 PSI. The 3pt really needs 1500+ PSI to get to it's rated lifting capacity. So unless you can find a way to coax that pressure out of a PS pump I'd suggest you use an imexpensive gear pump. Figure 2.5-3 GPM @2000 RPM so a .35 ci displacement pump is about the right size - $75 online.

TOH

 

[ZANE]

I don't know how much pressure the power steering pump can produce???? I think though it would have too much volume for the lift system exhaust valve to handle. Even with my 3 GPM gear pump the lift arms will raise when nothing is on them but can be lowered by hand pressure on the lift arm. I think you will need a pump that will produce at least 2000 pounds of pressure to supply the lift system.

Zane

 

[souNdguy]

I wasn't thinking of plumbing it into the lift system, except maybee as a sump.

soundguy

 

[Mick up North]

Thanks for all the info guys, I'm going to dump the heavy gear oil that the prev. owner put in and get the proper stuff and today I found a hydraulic pump off an old versatile swather back in the bush. All I should have to do now is make up brackets and run some lines. Kinda busy right now at work so I may not get this job done til closer to spring, but I'll let you all know how it works out.

 

[Anonymous-0]

i have the oem type crankshaft pumps, that do a great job on 9n up