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Re: IH 340 U hydraulic bypass plate


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Posted by mkirsch on January 29, 2010 at 05:24:45 from (64.80.108.55):

In Reply to: IH 340 U hydraulic bypass plate posted by douglas carroll on January 28, 2010 at 04:38:58:


Brian Peppler said: (quoted from post at 14:32:07 01/28/10) I was looking at the end plate and I think it might

be strong enough for me to remove it and drill and

tap a 3/8 national pipe thread into it and then run

some hydro hoses out and run that to a couple open

center valves.


Yeah, but you can't just drill holes in the end plate.

It's an open center system, which means there can only be one path for the hydraulic fluid through the entire system.

If you drill holes, you create a second path for the fluid to flow. The fluid will always take the path of least resistance, and NONE of your hydraulics will work anymore:

You pull the lever on your spool valve, and the fluid will flow through the 3pt valve. You pull the lever on the 3pt valve, and the fluid will flow through the spool valves.

To work, fluid has to flow out of the pump, through the spool valves, into the 3pt valve, and back into the reservoir.


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