460 loader control valve options

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   Greetings,

I acquired a 160 diesel with (I believe) an OEM 460 loader the other day. After using the loader a bit it's apparent I have an internal hydraulic leak as the bucket slowly sinks with a load in it. 

I'm inclined to think it's in the control valve. When I go to lift the bucket, if I only open the valve ever so slightly, the loader drops. Once I open the valve enough, it lifts just fine.

My question is: couldn't I just replace the valve with a cheaper universal spool valve from ebay? I'm sure the cylinders could use a seal job as well.

Your input is much appreciated!

Edited by farmtechguy - 5 hours 10 minutes ago at 10:38am

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farmtechguy Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 5 hours 19 minutes ago Location: United States Points: 3	Post Options Post Reply Quote farmtechguy Report Post Thanks(0) Quote Reply Topic: 460 loader control valve options Posted: 5 hours 12 minutes ago at 10:36am
	Greetings, I acquired a 160 diesel with (I believe) an OEM 460 loader the other day. After using the loader a bit it's apparent I have an internal hydraulic leak as the bucket slowly sinks with a load in it. I'm inclined to think it's in the control valve. When I go to lift the bucket, if I only open the valve ever so slightly, the loader drops. Once I open the valve enough, it lifts just fine. My question is: couldn't I just replace the valve with a cheaper universal spool valve from ebay? I'm sure the cylinders could use a seal job as well. Your input is much appreciated! Edited by farmtechguy - 5 hours 10 minutes ago at 10:38am

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ac160 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 02 Dec 2010 Points: 422	Post Options Post Reply Quote ac160 Report Post Thanks(1) Quote Reply Posted: 4 hours 19 minutes ago at 11:29am
	Try changing the packing in the cylinders first. I have a 460 loader on a 6070 that leaked down with or without a load, and new packing solved that issue. There were two versions of the 460 loader, one for a 160 and the other for the 6060 - 6080.

Ray54 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 22 Nov 2009 Location: Paso Robles, Ca Points: 4799	Post Options Post Reply Quote Ray54 Report Post Thanks(1) Quote Reply Posted: 2 hours 40 minutes ago at 1:08pm
	I would agree start with the cylinders first. But there is a no tools required way to check. When you first start the tractor run the loader up and let it leak down a number of times. As it is lowering put your hand on it, the bypassing oil will create heat. If you cannot feel any warming of the cylinder, then the valve is your leak.

farmtechguy Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 5 hours 19 minutes ago Location: United States Points: 3	Post Options Post Reply Quote farmtechguy Report Post Thanks(0) Quote Reply Posted: 1 hour 55 minutes ago at 1:53pm
	Thanks for the replies. I picked up a 4x5 round bale and definitely have gland seal leaks on two of the cylinders. I'll do the test you describe here in a little bit and report back. Do you guys think an internal cylinder leak could be the cause of the "dead" spot when opening the control valves? It's pretty bad when I it loaded up.