Wood chipper case line

[MATTYZ426F]

Have a 75xt and bought a
Wood chipper and the attachment has a case drain line but my machine doesn't.
Anyone ever install one on a Case 75xt before? Difficult?
Any tips would be appreciated

 

[foton]

from what I know it just goes back to the hydraulic tank,but from a video I saw there is a think about not creating aeration of the oil when it goes back in , so what I saw is the the fall distance of the oil in air should be kept to a minium distance,they stated not over 8 inchs. I assume that in the oil level would be best to put it back in but that just adds another place for it to leak. but do your own research on this. But it was fresh in my mind so I brought it up, it might be b.s.

 

[MATTYZ426F]

Yeah the research is a little crazy, some say it's needed and some say depending on what type of pump you have and weather the pump is normal or high flow.
Mine is high flow. Some said that it could be attached directly to pump and some said to resvoir.
I'm gonna call case and see.

 

[MX727]

I would see where the factory installed case drain gets installed and try to mimic that. You will also see the debate about where to install it in relation to the filter.

Your dealer should have the schematics.

 

[MATTYZ426F]

Thanks, I called them today and they informed me that mine should have came with the case return but since I bought used not sure if when they added the 11/2" line for post hole hammer they removed but I'm getting the schematics

 

[CATastrophe262c]

I am also interested in adding one to my 2011 Cat 262c standard flow. If anyone out there has completed please chime in. I would assume the process is similar?

 

[ward]

I would think that all case drain oil needs to go through the filter before returning to the tank, if a drive motor for an attachment shells out you want a filter to catch any of the debries so it does not end up in the tank.

 

[bauertree]

I just looked into doing this with my Bobcat 763 standard flow. First, all high flow machines have a return (3 way). If yours doesn't it's not HF. The return line simply returns bypassed fluid to the tank through a filter. There should already be a one or two return lines with filters connecting to your tank. After attaching a bottle to my return line and running my snow blower I discovered that very little fluid bypasses. Most only when the drive motor on the attachment bogs down and it's not under pressure. So if one wanted to attach a hose straight to the tank without a filter I don't see why that would be an issue. However the best approach I could see would be to connect to the existing filter by way of a T. That will involve draining the tank as I didn't see a check valve on mine.

 

[MATTYZ426F]

Iit's

I just looked into doing this with my Bobcat 763 standard flow. First, all high flow machines have a return (3 way). If yours doesn't it's not HF. The return line simply returns bypassed fluid to the tank through a filter. There should already be a one or two return lines with filters connecting to your tank. After attaching a bottle to my return line and running my snow blower I discovered that very little fluid bypasses. Most only when the drive motor on the attachment bogs down and it's not under pressure. So if one wanted to attach a hose straight to the tank without a filter I don't see why that would be an issue. However the best approach I could see would be to connect to the existing filter by way of a T. That will involve draining the tank as I didn't see a check valve on mine.

A high flow, it's a standard with 75xt,

 

[bauertree]

Iit's

A high flow, it's a standard with 75xt,

But yours doesn't have a three way connector?? How is that possible?

 

[Topper1]

Case drain straight back to tank.The 75xt series did not come with case drains, even with high flow according to cnh. But the late 90xt series and almost all later models did. (435, 440, 445, 450, 465)

 

[MATTYZ426F]

But yours doesn't have a three way connector?? How is that possible?

I bought it used and the guy I got it from built wood horse fences and had a 1 1/2" hydraulic line installed on front of machine for a post hammer so I'm assuming that since he wasn't running anything that technically needed a case drain line the dealership probably used this in place off of the pump!?
I'm not a 100% sure but I called the dealership today after checking online to confirm that my model 75xt was a high flow pump.
I think it's a screw pump as well which online state that I really don't need it but I don't want to blow my pump on the machine.
I used it to verify that chipper works and held the case return fitting open and very minimal hydraulic fluid came through line, a very small amount.
I'm checking with the schematics later this week to see where it's supposed to be and gonna try to contact the person I bought it from to see if he has any information

 

[ward]

Depending on the manufacturer I have seen units that allowed 10 to 25 drops per minute to about 1 cup of fluid per minute so it is not a large amount of fluis as a rule, hince the case drain line on the unit (power supply) is normaly pretty small you just dont want the case to build pressure as it will just blow out the seals at the out put shaft as a rule.